HELP ME PLEASE!
State the domain and range of the relation. (2 points) Then, determine if the relation is a function and state the reason why or why not. (2 points)
y= 2x - 3
Answers
Range is (-♾, ♾)
Related Questions
Select the correct answer.
Which statement is true about the graph of this equation?
y + 4 = 4(x + 1)
A.
The graph is a line that goes through the points (1,-4) and (0,0).
B.
The graph is a line that goes through the points (1,4) and (2,8).
C.
The graph is a line that goes through the points (-4,-1) and (-3,-3).
D.
The graph is a line that goes through the points (4,1) and (5,5).
Answers
I hope this helped you !!
Answer:
A
Step-by-step explanation:
The graph is a line that goes through the points (1,-4) and (0,0)
If x2 + y2 = 14 and xy = 5, find the value of (1/2 x + 1/2 y)2.
Answers
Answer:
(½x+½y)²=6
Step-by-step explanation:
x^2 + y^2 = 14, xy=5
(A+B)^2=A^2 +2AB+B^2... (*)
(1/2x+1/2y)^2 =(*)
(1/2x)^2 +2(1/2x)(1/2y)+(1/2y)^2 =
1/4x^2 +1/2xy+1/4y^2=
1/4(x^2 +y^2) +1/2(xy)=
1/4*14+1/2*5=
14/4+5/2=
14/4+10/4=
24/4=6
let me know if I'm wrong.
( 1/2x +1/2y)²
= { ( x + y )/ 2xy }²
= ( x² + 2xy + y² )/4(xy)² —(1)
As we know that x² + y² = 14 — (2)
and xy = 5 —(3)
So, substitute the value of equation 2 and 3 in equation 1,
= ( x² + 2xy + y²)/4(xy)²
=( 14 + 2*5)/(4*5²)
= 24/(4*25)
= 6/25.
Amy contributes $50 per month into the Lincoln National Bond Fund that earns 7.26% annual interest.What is the value of Amy’s investment after 25 years?
Answers
Answer:
Inc Interest : $16,089
Step-by-step explanation:
1. Let's turn $50 a month into a year, so 50 * 12 = $600
2. Including the annual interest, which is $43.56 out of the $600
3. Add them together, which will be 43.56 + 600 = 643.56
4. Multiply it by 25 to get the full 25 years and you're done!
The value of Amy's investment after 25 years will be $140.75.
What is simple interest?Simple interest is calculated just on the loan's principal amount, whereas compound interest is calculated on both the principal and the cumulative interest. The straightforward crediting of cash flows related to an investment or deposit is referred to as "simple" interest.
Given that, Amy contributes $50 per month to the Lincoln National Bond Fund which earns 7.26% annual interest.
The investment after 25 years will be calculated as,
SI = ( P x R x T)/100
SI = ( 50 x 7.26 x 25 ) / 100
SI = $90.75
The total investment will be calculated as,
A = $90.75 = $50
A = $140.75
Therefore, the value of Amy's investment after 25 years will be $140.75.
To know more about simple interests follow
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A pair of pants that regularly costs $55 are on sale for 35% off the regular price. What is the sale price of the pants?
Answers
Answer:
$35.75
Step-by-step explanation:
100-35=65
.65 x 55 = 35.75
Answer:
$35.75
Step-by-step explanation:
35% converted to decimal is .35
55x.35= 19.25 the sale amount
$55 original price - $19.25sale = $35.75 sales price of pants.
Solve for a. -16-7a=5
Answers
Answer:
A = -3
Step-by-step explanation:
-16-7(-3)=5
Which of the following represents the area of a rectangle whose length is x − 6 and whose width is x − 8? (1 point)
x2− 14x − 48
x2+ 48
x2− 48
x2− 14x + 48
Answers
Answer:
x²-14x+48
Step-by-step explanation:
Area= Length × Width
Area= x-6 × x-8
Area= (x-6)(x-8)
Area= x²-8x-6x+48
Area= x²-14x+48
Hope this helped you- have a good day bro cya)
help pls what's the answer if I subtract these ?
[tex] \frac{4}{5} [/tex]
-
[tex] \frac{3}{8} [/tex]
Answers
Answer:
[tex] \frac{17}{40} [/tex]
Step-by-step explanation:
[tex] \frac{4}{5} - \frac{3}{8} [/tex]
First, find the common denominator
So we multiply 4 by 8, and get 32
Then we multiply 3 by 5, and get 15
Next we give both terms new denominators 5 × 8 =40
So now our fractions look like this:
[tex] \frac{32}{40} - \frac{15}{40} [/tex]
Now...that our denominators match we can simply
subtract the numerators
32 − 15 = 17
Thus the answer is:
[tex] \frac{17}{40} [/tex]
Hope this helped you- have a good day bro cya)
y = 2/5x -1/2 + y = -1/3x + 2/3 combine like terms
Answers
Answer:
2
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
Have a nice rest of your day
#Nova
3. The difference of two-thirds of a number x and
6 is at least -24. Which inequality represents all
possible values for x?
Answers
The inequality that represents all possible values for x is x ≥ -27.
What is linear inequality?Linear inequality refers to the relation between a linear algebraic expression to some known value that contains inequality sign.
Unlike a linear equation it can have a range of values inside an interval.
The given statement can be written in terms of inequality as,
2/3x - 6 ≥ -24
=> 2/3x ≥ -24 + 6
=> 2/3x ≥ -18
=> x ≥ -27
Hence, the inequality expression for the given problem can be written as x ≥ -27.
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Guys can u please help i can explain it so i gotta send a photo i always give hearts and 5 stars :D the photo is down below
Answers
Answer:
5x cm
Step-by-step explanation:
Total length of AE = 2x + 3x
= 5x cm
What is the surface area in square inches of a cube with a side 7
inches long?
10
Answers
Answer:
28
Step-by-step explanation:
7x4
Answer:
249 inches
Step-by-step explanation:
a cube is equal on all sides so if one side is 7 all sides are 7, if you multiply 7 by 7 you get 49 but that's just one face of the cube, there are 6 faces on a cube so 49 x 6 is 249
These triangles
are congruent by
the triangle
congruence
postulate [? ]
A. SSS
B. SAS
C. Neither, they are not congruent
Answers
Answer:
A
Step-by-step explanation:
The markings indicate that all three sides of each triangle correspond with one another meaning that they are congruent by the SSS (Side, Side, Side) postulate.
What is the slope of this line?
Answers
What is the slope of a line that is parallel to the given line
Answers
Answer:
-3/2
Step-by-step explanation:
The slope of a line is calculated by finding the rise over run of two points on the line. In this case, I use the points (-3, 4) and (1, -2). Then, I use the formula of [tex]\frac{y_{2} - y_{1}}{x_{2}- x_{1} }[/tex] to find the slope. If 4 is [tex]y_{2}[/tex], -3 is [tex]x_{2}[/tex], 1 is [tex]x_{1}[/tex] and -2 is [tex]y_{1}[/tex], then,
[tex]\frac{4 - (-2)}{ -3- 1 } = \frac{6}{-4} = \frac{3}{-2}[/tex]
Furthermore, the slope of a parallel line is always the same as the given line. Therefore, the answer is -3/2.
5x(6x2 -3x4+7x3)-20 x3 -3_x4
Answers
Answer:
[tex]30x^3-15x^5+35x^4-43[/tex]
Step-by-step explanation:
[tex]30x^3-15x^5+35x^4-43[/tex]
Use the distributive rule and distribute 5x into the brackets. Then use the order of operation rule to do what is after the brackets.
It is a three-digit whole number.
It is divisible by 7.
It is divisible by 9.
It is divisible by 11.
It is divisible by 3.
It is not divisible by 5.
It is not divisible by 4.
It is not divisible by 6.
It is greater than 500.
It is an odd number.
Answers
Answer:
Do you have answer choices?
Step-by-step explanation:
Answer:
2079
Step-by-step explanation:
What is the least common denominator (LCD) of 13 and 34?
Answers
Answer:
442
Step-by-step explanation:
Factor the following Polynomial a) 6x - 18
Answers
does anyone know how to do this
Answers
Answer:
x = 2 and y =
Step-by-step explanation:
y = 2x - 1
y = -x + 5
2x - 1 = -x + 5
2x + x = 5 + 1
3x = 6
x = 6/3
x = 2
y = 2(3)-1
y = 5
Tom made $90 for 5 hours of work.
At the same rate, how many hours would he have to work to make $126?
Answers
7 Hours
Step-by-step explanation:
Very simple, 90/5 is 18, so that means Tom makes 18 dollars an hour, multiply 18 by 7 and you get 126.
(Thanks and Brainiest Appreciated)
4x+3y=16 x= -3 and y= -2 Solve the equation
Answers
Answer:
Is this question wrong?
Step-by-step explanation:
4x+3y=16
4(-3)+3(-2)=16
-12-6=16
-18=16
Anne goes out to lunch every Friday. On average she spends around
$18 each time, How much money can she save in one year if she
stops going out for lunch each week?
Answers
Answer:
$936
Step-by-step explanation:
there are about 52 weeks in a year
18*52=936
Hope this helps!
The value of 10^4 is 10,000. Use this fact to change 5.2 x 10^4 to standard notation. 5.2 x 10^4 = 5.2 x ____ =?
Answers
Step-by-step explanation:
5.2 × 10000
yep that is the answer
Answer:10,000. i think
Step-by-step explanation: Example: 104 = 10 × 10 × 10 × 10 = 10,000.
PlEaSe HeLp.
i'M VeRy CoNfUsEd.
Answers
Answer:
For first page I belive both of the answer are b. The second page I believe b and c
Step-by-step explanation:
Answer:
answers are a,b,a,d
Step-by-step explanation:
this is algebra 1 id appreciate it if you could help me thx!
Answers
Answer:
Option 4) y - 1 = -2(x - 0)
Step-by-step explanation:
Given the slope, m = -2, and the y-intercept, (0, 1):
Substitute these values into the following point-slope form:
y - y1 = m(x - x1)
y - 1 = -2(x - 0) ← This is the point-slope form given the slope, m = -2, and the y-intercept, (0, 1).
Therefore, the correct answer is Option 4: y - 1 = -2(x - 0)
Plz Help! A B C or D
Answers
Answer:
B
Step-by-step explanation:
go download symbolab and enter the quenstion it wil give you many help!
How do you compare exponential functions??
I really don't understand, also giving brainliest!!
Answers
Answer:
You compare it by this
Step-by-step explanation:
Linear functions are graphed as straight lines while exponential functions are curved. Linear functions are typically in the form y = mx + b, which is used to discover the slope, or simply the change in y divided by the change in x, while exponential functions are typically in the form y = (1 + r) x.
If I have a 77 and i get 100 added to my grade what will my final score be?
Answers
Answer:
Most likely a B.
Step-by-step explanation:
This depends on how much the test was of your grade.
the angles of a triangle measure 4 degrees,86 degrees, and 90 degrees.
Answers
Answer:
It is a right angled triangle.
Step-by-step explanation:
Because it has 90° angle in it.
Hope it helps..!!<3
Show how 12 is both a multiple of 4 and a factor of 48. Use words, drawings and symbols to explain your answer
Answers
Answer:
4x3=12
12x4=48
48/12=4
48/4=12
Step-by-step explanation: