The answer is [tex]a^{-3}=\frac{1}{x^{3} }[/tex]
Exponent
An exponent is a number that has a power. In numbers with exponents, there are several rules. This rule is used to calculate the exponents operation.
The rules are, including:
[tex]a^{m}a^{n}=a^{m+n} \\\frac{a^{m} }{a^{n} }=a^{m-n}\\( a^{m}) ^{n}=a^{mn}\\ (ab)^{m}= a^{m}b^{m} \\\frac{a}{b} ^{m}=\frac{a^{m} }{b^{m} } \\a^{-m}=\frac{1}{a^{m} }\\ \sqrt[n]{a^{m} } =a^{\frac{m}{n} }[/tex]
From the properties rules, the rules that can be used in the problem are
[tex]a^{-m}=\frac{1}{a^{m} }[/tex]
From the properties above, it can be concluded that negative exponents mean one per number to that power. Do not reverse with the cube root, where the cube root the one per is the power, not the base number.
If the question is asked [tex]a^{-3}[/tex]
then it can be directly substituted in the rule above.
With that rule, let's find the number that equivalent with [tex]4^{-3}[/tex].
[tex]a^{-3}=\frac{1}{x^{3} }[/tex]
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12x−x+8+3x= ______x + _______ Complete the equation so that it has infinitely many solutions.
Answer:
14x + 8 for the first column and the second one is i think its 2 (7x + 4)
Step-by-step explanation:
sorry if this is not what your looking for
Please help me ASAP!!! Answer both questions for example: 1= C and 2= A
2. The equation is given as follows: x + 4x = 25.
3. The constrains are given as follows: 0 ≤ x ≤ 25, 0 ≤ y ≤ 75.
What is the equation in item 2?The time spent running is given by:
Running = 4x.
The time spent walking is one-fourth of the time spent walking, hence it is given by:
Walking = 4x/4 = x.
The total time is the sum of the times spent running and walking, hence the expression is presented as follows:
x + 4x = 25.
What are the constraints in item 3?The variables are given as follows:
x: number of out-of-state hires.y: number of in-state hires.You can accept at most 25 out-of-state hires, hence:
0 ≤ x ≤ 25
(as the number cannot be negative).
The company plans to have three times as many in-state hires, hence:
0 ≤ y ≤ 75.
As:
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Select the correct answer. What is the solution for x in the equation 5/3x + 4= 2/3x? A. B. C. D.
[tex]\boldsymbol{\sf{\dfrac{5}{3}x+4=\dfrac{2}{3}x }}[/tex]
Subtract 2/3x on both sides.
[tex]\boldsymbol{\sf{\dfrac{5}{3}x+4-\dfrac{2}{3}x=0 }}[/tex]
Combine 5/3x and -2/3x to get x.
[tex]\boldsymbol{\sf{x+4=0 }}[/tex]
Subtract 4 from both sides. Any value subtracted from zero results in its negative value.
[tex]\boldsymbol{\sf{x=-4 }}[/tex]
Answer:
x = - 4
Step-by-step explanation:
[tex]\frac{5}{3}[/tex] x + 4 = [tex]\frac{2}{3}[/tex] x ( multiply through by 3 to clear the fractions )
5x + 12 = 2x ( subtract 2x from both sides )
3x + 12 = 0 ( subtract 12 from both sides )
3x = - 12 ( divide both sides by 3 )
x = - 4
suppose that a recent article stated that the mean time spent in jail by a first-time convicted burglar is 2.5 years. a study was then done to see if the mean time has increased in the new century. a random sample of 27 first-time convicted burglars in a recent year was picked. the mean length of time in jail from the survey was four years with a standard deviation of 1.9 years. suppose that it is somehow known that the population standard deviation is 1.4. conduct a hypothesis test to determine if the mean length of jail time has increased. assume the distribution of the jail times is approximately normal. calculate the following. (enter exact numbers as integers, fractions, or decimals.) (a) x
Using Z- distribution it is found that the mean length of jail time has increased because the test statistics is greater than the critical value.
Z- distribution: It is a special normal distribution where the mean is 0 and standard deviation is 01.
z = (x -μ) / σ
At the Null hypothesis, it is tested if the mean length of jail time is still of 2.5 years.,
i.e., H₀ :μ = 2.5
Null hypothesis : It refers to a hypothesis that states that there is no relationship between two population parameters.
At the alternative hypothesis, it is tested if it has increased
i.e., H₁ :μ>2.5
Alternative Hypothesis: The alternative hypothesis states the research prediction of an effect or relationship.
we have the standard deviation for population thus the z- distribution is used. The test statistics is :
z= ⁻ₓ -μ /σ /√n
where, x is the sample mean
μ is the value tested at the null hypothesis.
σ is the standard deviation of sample.
n is the sample size.
For this problem the values of parameter are:
x= 5 ,σ =1.4 ,μ = 2.5 and n = 27
hence the value is :
z= ⁻ₓ -μ /σ /√n
= 5 - 2.5 / 1.4 ÷ √27
= 2.5 × √27 /1.4
= 9.27
The critical value for a right tailed test as we are testing if the mean is greater than a value with a significance level of 0.05 is of 2*= 1.645.
since, the test statistics is greater than the critical value, it can be concluded that the mean length of jail time has increased.
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A trader old a writ watch for h.3150 after giving a 10% dicount.Find the marked price of the watch
The marked price of the wrist watch after the trader sold a wrist watch for $3150 after giving a 10% discount is $3500.
First, let us understand the percentage:
A percentage is a fraction of a whole expressed as a number between 0 and 100. Nothing is zero percent, everything is 100 percent, half of everything is fifty percent, and nothing is zero percent.
To determine a percentage, we need to divide the portion of the whole by the whole itself and multiply by 100.
Let the marked price be x.
So,
According to the question;
x - x * 10% = 3150
x - x * 10/100 = 3150
100x - 10x / 100 = 3150
90x = 3150 * 100
x = 3150 * 100 / 90
x = 3500
So, the marked price is $3500.
Thus, the marked price of the wrist watch after the trader sold a wrist watch for $3150 after giving a 10% discount is $3500.
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HELP MEEE PLEASE TYYYYYY
Answer:
45mi/h
Step-by-step explanation:
4 to 8 = 4 hours
v = space / time
v = 180/4 = 45 mi/h
Volume please help due today!
The new volume of the container will be 120 ft³
What is volume?Volume is defined as the space occupied within the boundaries of an object in three-dimensional space. It is also known as the capacity of the object.
Given a container with dimensions 3ft by 4ft by 5ft
Its volume need to be twice.
Volume of container = length*width*height
Original volume = 3*4*5 = 60 ft³
After doubling = 60*2 = 120 ft³
New dimensions are = 4ft by 5ft by 6ft
Hence, The new volume of the container will be 120 ft³ and New dimensions are 4ft by 5ft by 6ft
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I need help. I was absent for 2 weeks, and I have no idea how to do this.
a) no solution
b) only one solution
c) only one solution
d) infinite many solution.
e) only one solution
f) no solution
g) infinite many solution.
h) infinite many solution.
i) no solution
j) only one solution
k) infinite many solution.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
We know depending upon the types of lines there are different type of solution
if there are two equations
[tex]a_1 x+ b_1 y+ c_1= 0[/tex] and [tex]a_2 x+ b_2 y+ c_2= 0[/tex]
For Intersecting Lines
[tex]a_1/a_2[/tex] ≠ [tex]b_1/b_2[/tex]
and, have only one solution
For parallel lines:
[tex]a_1/a_2[/tex] = [tex]b_1/b_2[/tex] ≠ [tex]c_1/c_2[/tex]
and, have no solution
For co- incident line
[tex]a_1/a_2[/tex] = [tex]b_1/b_2[/tex] = [tex]c_1/c_2[/tex]
and, have infinite many solution.
a) y= -5x + 4 --> 5x + y = 4
5x+y= -3
So, [tex]a_1/a_2[/tex] = [tex]b_1/b_2[/tex] ≠ [tex]c_1/c_2[/tex]
and, have no solution
b) y=3/4 x+5
y= 4/3 x + 5
so, [tex]a_1/a_2[/tex] ≠ [tex]b_1/b_2[/tex]
and, have only one solution
c) y= -3/4x+5
y=3/4x+5
[tex]a_1/a_2[/tex] ≠ [tex]b_1/b_2[/tex]
and, have only one solution
d) y= 3/4 x + 5
y= 5+ 3/4x
So, [tex]a_1/a_2[/tex] = [tex]b_1/b_2[/tex] = [tex]c_1/c_2[/tex]
and, have infinite many solution.
e) y= 3/4x +5
y= x + 2
So, [tex]a_1/a_2[/tex] ≠ [tex]b_1/b_2[/tex]
and, have only one solution
f) y= 3/4x + 5
y= 3/4x + 2
So, [tex]a_1/a_2[/tex] = [tex]b_1/b_2[/tex] ≠ [tex]c_1/c_2[/tex]
and, have no solution
g) 6x -y = 5
-6x + y= -5
So, [tex]a_1/a_2[/tex] = [tex]b_1/b_2[/tex] = [tex]c_1/c_2[/tex]
and, have infinite many solution.
h) 2x- y +5 =0
2x- y+ 5 =0
So, [tex]a_1/a_2[/tex] = [tex]b_1/b_2[/tex] = [tex]c_1/c_2[/tex]
and, have infinite many solution.
i) 4x- y+ 5 =0
4x- y +3 = 0
So, [tex]a_1/a_2[/tex] = [tex]b_1/b_2[/tex] ≠ [tex]c_1/c_2[/tex]
and, have no solution
j) 3x- y +5 = 0
2x -y +5 =0
So, [tex]a_1/a_2[/tex] ≠ [tex]b_1/b_2[/tex]
and, have only one solution
k) 2x+ y -1 = 0
2x + y- 1= 0
So, [tex]a_1/a_2[/tex] = [tex]b_1/b_2[/tex] = [tex]c_1/c_2[/tex]
and, have infinite many solution.
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2) A cuboid has sides of length 10 cm, 6cm and 7 cm.
Find the total surface area of the cuboid.
6 cm
10 cm
7cm
The total surface are of cuboid is 304 cm square.
What is total surface area of cuboid?
The area of a cuboid refers to the surface area as the cuboid is a three dimensional solid. Thus, the area of cuboid can be calculated using the formula of area of rectangle, since the faces of a cuboid are in a rectangular shape.
The Total surface area of a cuboid (TSA) is equal to the sum of the areas of it’s 6 rectangular faces, which is given by:
Total Surface Area of a Cuboid (TSA) = 2 (lw + wh + lh) square units
The above formula gives the total surface area of a cuboid having all six faces.
Given, length = 10cm , width = 6 cm , height = 7cm
Total surface area = 2[10(6)+6(7)+10(7)]
=2(60+42+70)
=2(152)
=304.
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Parker went to the grocery store and bought bottles of soda and bottles of juice. Each bottle of soda has 50 grams of sugar and each bottle of juice has 10 grams of sugar. Parker purchased a total of 14 bottles of juice and soda which collectively contain 300 grams of sugar. Graphically solve a system of equations in order to determine the number of bottles of soda purchased,x, and the number of bottles of juice purchased, y.
The number of bottles of soda purchased are 4 and the number of bottles of juice purchased are 10.
Given,Parker went to the grocery store and bought bottles of soda and bottles of juice.
Each bottle of soda has 50 grams of sugar and each bottle of juice has 10 grams of sugar.
Parker purchased a total of 14 bottles of juice and soda which collectively contain 300 grams of sugar.
we are asked to determine the number of bottles of soda purchased,x, and the number of bottles of juice purchased, y.
So, the total number of bottles:x+y=14
x=14-y ...eq(1)
As, Each bottle of soda has 50 grams of sugar and each bottle of juice has 10 grams of sugar.
50x+10y=300
Substituting the value of x from eq(1)
⇒ 50(14-y) + 10y = 300
⇒ 700 - 50y + 10y = 300
⇒ -40y = 300 - 700
⇒ -40y =-400
y = 400/40
y = 10
The number of juice bottles = 10.
Now, to get the number of bottle of soda by substituting the value of y in equation (1):
x = 14-y
x = 14 - 10
x = 4
The number of soda bottles = 4.
Therefore, the number of bottles of soda purchased are 4 and the number of bottles of juice purchased are 10.
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Find the values of x and y. Write your answers in simplest form. Please show how the work so I can see and learn how to get the answer.
According to the area of triangle, the value of x is 8.6 and the value of y is 10.5
Area of triangle:
The area of the triangle is defined as the region enclosed by its perimeter or the three sides of the triangle.
Given,
Here we have the triangle with side values and height.
Now, we have to find the value of x and y in the triangle.
We know the formula of the triangle is,
A = 1/2 b x h
Here the value of b is x + 9 and the value of h = 6
So, the area of the triangle is,
=> [(x + 9) x 6]/2
=> 2 = 6x + 54
=> 6x = 52
=> x = 52/6
=> 8.6
Now, the value of y is calculated by using the Pythagoras theorem,
=> y² = (8.6)² + 6²
=> y² = 73.96 + 36
=> y² = 109.96
=> y = √109.96
=> y = 10.5
Therefore, the value of y is 10.5
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DEFG has been dilated to D'EF'G'. Use a pair of corresponding sides to determine the scale factor.
a 2/1=2
b 3/2
c1/2
d2/3
The scale factor for a a pair of corresponding sides will be;
⇒ 3 / 2
What is Proportional?
The equality between two ratio is called Proportional.
Given that;
DEFG has been dilated to D'EF'G'.
Now,
Let the coordinates of DEFG are for side DG are;
D = (- 6, 3)
G = (- 3, 3)
And, The coordinates of D'E'F'G' are for side D'G' are;
D' = (- 4, 2)
G' = (- 2, 2)
So, The length of side DG is;
DG = √ (- 3 - (-6))² + (3 - 3)²
= √ 3²
= 3
And, The length of side D'G' is;
D'G' = √ (- 2 - (-4))² + (2 - 2)²
= √ 2²
= 2
Thus, The scale factor for a a pair of corresponding sides will be;
⇒ DG / D'G' = 3 / 2
Therefore, The scale factor for a a pair of corresponding sides will be;
⇒ 3 / 2
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Leo reads 11 pages in one third 1/3 hour. What is the unit rate for hours per pages?
Answer: 33 pages in 1 hour
Step-by-step explanation:
You could cross multiply
[tex]\frac{11}{1/3}[/tex] = [tex]\frac{x}{1}[/tex]
11=1/3x
x=33
Why is the degree of the dilated function one more than the degree of the original function?
The degree of a function has no effect by the dilation of the function.
and the degree of the dilated function is same as the degree of the original function.
Dilation is defined as, when a function is multiplied by any number, the graph of the function retain a new shape, either by stretch or by compression in different directions.
Now, when a function is dilated it is either stretched or compressed in upward or downward direction.
It does not affect the degree of the function as the number of roots will be same as original function.
So, the degree of the dilated function is same as the degree of the original function.
Hence, the degree of the dilated function is same as the degree of the original function.
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Plumbing: If a 45 gallon hot water tank holds 360 lbs of water, what weight of water will a 55 gallon tank hold?
Weight of water will a 55 gallon tank hold 440 lbs.
How to find the weight of water will a 55 gallon tank hold ?If a 45 gallon hot water tank holds 360 lbs.
45 gal⇒ 360 lb
55 gal ⇒ x lb?
Ratio
45 : 360 = 55 : x
Ratios are used to compare two numbers by dividing them. If you want to compare one data point (A) to another (B), your formula would be A/B. This signifies that you are dividing data A by data B. If A is five and B is ten, your ratio will be 5/10.
Here,
do the relation
[tex]\frac{45}{360} = \frac{55}{x}[/tex]
solve the x
[tex]x = \frac{55 * 360}{45} \\ = 440[/tex]
Hence weight of water will a 55 gallon tank hold 440 lbs.
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Mario invested $6,000 in an account that pays 5% annual interest compounded annually. Using the formula a = p(1 + r)t, what is the approximate value of the account after 2. 5 years? $6,075 $6,118 $6,456 $6,778.
The approximate value of the account after 5 years will be $6778.
Given that,
Mario put $6,000 into a savings account that accrues interest at a rate of 5% per year.
The amount is given by,
A= p(1 + r)^t
P = 6000
R = 5%
T= 2.5 years
R = Rate of Interest
T= Time
P = Principal Amount
By substituting we get,
A= p(1 + r)^t
A = 6000(1 + 0.05)^2.5
A = 6000(1.05)^2.5
A = 6000 * 1.129
A = 6778.35
As a result, the account will roughly be worth $6778 after five years.
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I need help with this please
Answer:
Only the third one is incorrect. First 2 and last 1 are correct.
Determining if the inverse is a function
Answer:
I'm not sure, but it could be "inverse"
Step-by-step explanation:
given p(a) = 0.90, p(b) = 0.96, p(c) = 0.05 and that events a, b, and c are independent, what is p(a, b, and c).
The P(a, b and c) is 0.0432 when P(a) = 0.90, p(b) = 0.96, p(c) = 0.05.
From the given question, we know that
Probability of event 'a' occurring, P(a) = 0.90
Probability of event 'b' occurring, P(b) = 0.96
Probability of event 'c' occurring, P(c) = 0.05
We have been told that these three events are independent.
Thus, we can use the multiplication rule of probability, which states that the probability of three independent events a, b, and, c occurring is equal to the products of the probability of each individual event occurring.
p(a, b and c) = p(a) × p(b) × p(c)
= 0.90 × 0.96 × 0.05
= 0.0432
Hence, the probability(a, b, and c) is 0.0432.
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Plans for a new apartment building call for apartments directly across the hall from each other to be congruent. This computer printout shows Apartment D. If the vertices of Apartment E are located at (-2X1, Y1), (-2%2, Y/2), (-2X3, y3), and (-2%4, y4), will Apartment E be congruent to Apartment D?
Answer:
Step-by-step explanation:
no because (-2X1, Y1), and-2X3, y3), arent congruent so the whole problem is not congruent
7. Write an equation for the line in slope-
intercept form.
Ay
2
4-2 O
2
-4
2
4
X
Answer: y= -2/4x - 3
Step-by-step explanation:
b=y-intercept
Equation for slope-intercept form: y=mx+b
Locate the y-int/b: -3=b
Identify the slope/m: -2/4= 2 down, 4 to the right
Insert slope and y-int into slop-intercept form: y= -2/4x - 3
Explain how you would find 36×3/4 mentally
Answer:
= 27
Step-by-step explanation:
36×3/4
36 × 3
--
4
(cross multiplication)9 × 3
= 27
Evaluate. 7^4 Responses 28 28 343 343 2401 2401 16,384
The exponential number 7⁴ we get expression as 2401.
Given that,
The exponential number is 7⁴.
We have to find the expression.
A number's exponent tells us how many times it has been multiplied by itself.
Exponent-related issues are resolved utilising exponentiation rules or exponentiation attributes.
How many times we must multiply the reciprocal of the base is indicated by a negative exponent is the exponential with negative symbol
A fractional exponent is one where the exponent of a number is a fraction.
Take the exponential number.
7⁴
7×7×7×7
2401
Therefore, The exponential number 7⁴ we get expression as 2401.
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sin60° change to fraction
Answer:
[tex]\frac{\sqrt{2} }{3}[/tex]
Step-by-step explanation:
Use a quadratic equation to find two real numbers with a sum of 2 and a product of −24. Write the answers in the decreasing order of their values.
_____ and ______
The two numbers whose sum is 2 and product is -24 are 6 and -4
What is a quadratic equation?A quadratic equation is a second-order polynomial equation in a single variable x
a[tex]x^{2}[/tex]+bx+c=0
with a ≠ 0 . Because it is a second-order polynomial equation, the fundamental theorem of algebra guarantees that it has at least one solution. The solution may be real or complex.
Let the two numbers be x and y
so that
x + y = 2 ----------------1
xy = -24 -----------------2
from equation 1 make x the subject of the equation, so that it becomes
x = 2 - y ---------------3
substitute x in equation 3 in equation 2
y(2-y) = - 24
multiply out the bracket
2y - [tex]y^{2}[/tex] = -24
taking all terms to one side of the equation, it becomes
[tex]y^{2}[/tex] -2y -24 = 0
factorizing the equation
[tex]y^{2}[/tex] -6y + 4y - 24 = 0
y(y - 6) +4(y - 6) = 0
taking the terms outside bracket and putting them in a new bracket we have
(y + 4) (y - 6) = 0
so y + 4 = 0 or y - 6 = 0
y = -4 or y = 6
using y = -4 and substituting in equation 3
x = 2 - - 4
x = 6
In conclusion the two numbers are 6 and -4
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1. Which ordered pair does NOT belong to any quadrant?
(-1,-3)
(1, 3)
(1, -3)
(0, 3)
The point(0,3) is not a part of any quadrant. option D is the correct answer
The points on the x-axis and the y-axis are not a part of any quadrant.
From the question, we have
The point(0,3) is not a part of any quadrant.
Cartesian Coordinate System:
A point in a plane can be found using the coordinate system by connecting two perpendicular lines. In two dimensions, points are represented as coordinates (x, y) with respect to the x- and y-axes. We will study the Cartesian Coordinate System in this article. Axes and quadrants make up a plane. The coordinate axes are the name of the axes. Axes and quadrants make up a plane. The coordinate axes are the name of the axes. A rectangular system's reference lines, the vertical and perpendicular axes, are used to measure distances.
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write 75 (base 10) using 2 numerals
Answer:
Step-by-step explanation:
75 = 64 + 8 + 2 + 1 = 1*2^6 + 1*2^3 + 1*2^1 + 1*2^0
There is no power 5, 4, or 2 so zeros go in those slots.
75 = 1001011 (Base 2)
Please help me please
Answer:
m<T = 60°
m<U = 60°
TS = 13
SU = 13
Step-by-step explanation:
Triangle TSU is an equilateral triangle.
All interior angles has equal measures and each = 60° since the sum of interior angles in a triangle is equal to 180 and this divided by 3 = 60
all side lengths are also equal to one another, TU is given as 13 cm so the length of TS and SU is also = 13
I will love some help so if you can help that will be wonderful the question is Given the equation k over 34.2 equals 8.7, determine the value of k.
25.5
297.54
3.93
42.9
Answer:
k=297.54
Step-by-step explanation:
i can't really explain it
The value of k that satisfies the equation k/34.2 = 8.7 is approximately 297.54. So, correct option is B.
To determine the value of k in the equation k/34.2 = 8.7, we can solve for k by isolating it on one side of the equation.
We can start by multiplying both sides of the equation by 34.2 to eliminate the denominator:
k/34.2 * 34.2 = 8.7 * 34.2
This simplifies to:
k = 8.7 * 34.2
Evaluating the right side of the equation:
k ≈ 297.54
The correct option from the given choices is 297.54. So, correct option is B.
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A restaurant owner wants to attract more customers by getting enough ratings to appear on a popular social media site. The owner can generate 10% more business by reaching an additional 100 reviews. He knows that he provides one hundred 50% off coupons for meals, he can get 100 reviews. How much will it cost to increase business by 10% if each coupon is likely to cost $15?
Answer:
25%
Step-by-step explanation:
cause i did marh