Solve the following quadratic function
by utilizing the square root method.
y = 100-x²
X =
= ±[?].
Please help me and please explain step by step 50 points if you do thank you
Answer:
x = ± 10
Step-by-step explanation:
to solve the equation let y = 0 , that is
100 - x² = 0 ( add x² to both sides )
100 = x² ( take square root of both sides )
± [tex]\sqrt{100}[/tex] = x , that is
x = ± 10
Type the correct answer in each box. write each answer as a fraction, using / for the fraction bar. wesley draws a card at random from a well-shuffled deck of playing cards. the probability that wesley draws an ace or a jack is . the probability that wesley draws a number card or a black card is .
The probability that Wesley draws an ace or a jack is 0.154 and the probability that Wesley draws a number card or a black card is 0.846
The probability of Ace or jackIn a standard deck of cards, we have:
Total = 52
Ace = 4
Jack = 4
Ace and Jack = 0
The probability is then calculated as:
P = P(Ace) +P(Jack) - P(Ace and Jack)
This gives
P = 4/52 + 4/52 - 0/52
Evaluate
P = 0.154
Hence, the probability that Wesley draws an ace or a jack is 0.154
The probability of Number card or black cardIn a standard deck of cards, we have:
Total = 52
Number card = 36
Black = 26
Number card and Black = 18
The probability is then calculated as:
P = P(Number card) +P(Black card) - P(Both)
This gives
P = 36/52 + 26/52 - 18/52
Evaluate
P = 0.846
Hence, the probability that Wesley draws a number card or a black card is 0.846
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Answer: my guess is 4/13 and 11/13
Step-by-step explanation:
sorry if im wrong
The ratio for sin B?
Answer:
[tex]d)~ \dfrac{20}{29}[/tex]
Step-by-step explanation:
[tex]\sin B = \dfrac{\text{Perpendicular}}{\text{Hypotenuse}}\\\\~~~~~~~~=\dfrac{AC}{AB}\\\\~~~~~~~~=\dfrac{20}{29}[/tex]
A metal stud for a warrior costume is in the shape of a square pyramid. The stud does not have a base.
A square pyramid has a square base with side lengths of 2, and 4 triangular sides with a height of 3.
How much metal is needed to make the stud?
8 square units
12 square units
16 square units
24 square units
The amount of metal needed to make the metal stud for the costume is 12 unit²
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Given that the meatal stud does not have a base, hence:
Amount of metal needed = sum of area of triangular faces = 4(1/2 * 2 * 3) = 12 unit²
The amount of metal needed to make the metal stud for the costume is 12 unit²
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HURRY HELP PLEASE THIS IS AN EMERGENCY
Answer:
18
Step-by-step explanation:
Well there is 6 there.... ad six and six more (2 layers more) for a total of 18
identify the domain of the function shown in the graph !!!
Answer:
x is all real numbers
Step-by-step explanation:
This means that the graph is continuous from negative infinity to positive infinity.
Alex is saving money because she would like to purchase the new video gaming system that everyone has been talking about. After two weeks of saving, she had $47. After 24 weeks of saving, she had $430. Approximately how many dollars per week did Alex save on average between weeks 2 and 24? (2 points)
$15.96 per week
$17.41 per week
$17.91 per week
$19.88 per week
Which is the most reasonable estimate of 132% of 48?
5.2
6.5
52
65
Answer:
65
Step-by-step explanation
Just did it on egde
Which situation is not an example of a digital transaction?
OA. Juliana uses Bitcoin to buy computer software.
B. Jamelle tips a driver by using a rideshare app.
OC. Elsa mails a check to her utility company.
D. Mark scans the QR code on a menu to pay for lunch.
SUBMIT
Answer:
C
Step-by-step explanation:
mailing a check is the mechanical transport of a physical object representing a monetary amount for payment.
that act itself is not electronic.
at the end in today's times the final act to get the money from Elsa'a account into the account of the utility company will be most certainly electronic, but we don't know (it could still end up in the old fashioned way that somebody from the utility company goes with the check to their bank, cash that check in and then use that cash in some way). and Elsa would not be involved. for her the payment was manual, "mechanical", and not electronic.
Answer:
C
Step-by-step explanation:
It mentions Elsa mails a check. Although it is sent through mail, the means of payment is still a check, which is not a digital transaction.
14
Type the correct answer in the box. Use numerals instead of words.
What value of n makes the equation true?
-n + 7 = 2
-n=2-7
-n=5
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three consecutive integers such that the smallest and three times the largest is 330 . what is the smallest integer?
Consider the equation:
6x+55=x²
1) Rewrite the equation by completing the square.
Step-by-step explanation:
-x^2+6x+55=0
x^2-6x-55=0
x^2-6x+(3)^2-55-(3)^2=0
(x-3)^2-64=0
pleaseeee help I really need help so baddd
Answer:
Step-by-step explanation:
A certain medication is eliminated from the bloodstream at a rate of about 17% per
hour. the medication reaches a peak level in the bloodstream of 60 milligrams.
determine the multiplier used to predict the amount of medication remaining 2
hours after the peak level.
Using an exponential function, it is found that the multiplier used to predict the amount of medication remaining 2 hours after the peak level is of 0.6889.
What is an exponential function?A decaying exponential function is modeled by:
[tex]A(t) = A(0)(1 - r)^t[/tex]
In which:
A(0) is the initial value.r is the decay rate, as a decimal.In this problem, we have that the decay rate is of r = 0.17, hence:
[tex]A(t) = A(0)(0.83)^t[/tex]
After 2 hours, the multiplier is given by:
[tex]A(2) = A(0)(0.83)^2 = 0.6889A(0)[/tex]
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A man stands on his balcony, 140 feet above the ground. He looks at the ground, with his sight line forming an angle of
75 with the building, and sees a bus stop. The function d=140 sec 0 models the distance from the man to any object given
his angle of sight 0. How far is the bus stop from the man? Round your answer to the nearest foot.
The bus at an angle of sight of 75 degrees from the man is at a distance of 541 feet
How to determine the distance?The distance function is given as:
d = 140 sec(x)
Where x represents the angle of sight.
In this case,
x = 75
So, we have:
d = 140 sec(75)
Evaluate the product
d = 541
Hence, the bus at an angle of sight of 75 degrees from the man is at a distance of 541 feet
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1/3x + 1 = -2 PLEASE HELP
Answer:
x = -9
Step-by-step explanation:
1/3x + 1 = -2
1/3x = -2-1
1/3x= -3
x = -3 * 3
x = -9
Hey there!
1/3x + 1 = -2
SUBTRACT 1 to BOTH SIDES
1/3x + 1 - 1 = -2 - 1
SIMPLIFY IT!
1/3x = -2 - 1
1/3x = -3
MULTIPLY 3 to BOTH SIDES
1/3x * -3 = -3 * 3
SIMPLIFY IT!
x = -3 * 3
x = -9
Therefore, your answer should be:
x = -9
Good luck on your assignment & enjoy day!
~Amphitrite1040:)
Please help me guys, I need some answers
A one is 12
B is 25
just multiply by 6
Step-by-step explanation:
Answer:
a) 24cm²
b)150cm²
c)600m²
d)864mm²
e)294m²
f)486cm²
g)384mm²
h)1014cm²
Step-by-step explanation:
Find the area of the face, it's a cube so just multiply it by the length you have
2x2=4
It has 6 faces so multiply this by 6
6x4=24
A website advertises 85 video games for $1969. How much would 160 video games cost at the same unit
price?
Answer:
$3705.60
Step-by-step explanation:
1969/85=23.16
23.16x160=3705.6
How many more cubic inches are in the volume of a cylinder with a diameter of 12 inches and a height of 13 inches than in the volume of a cylinder with a diameter of 10 inches and a height of 11 inches?
Answer:
Approx. 606.02 cubic inches more.
Step-by-step explanation:
[tex]Volume=\pi *(\frac{diameter}{2})^2*height[/tex]
First, let's find the volume of the first cylinder (diameter=12, height=13).
[tex]V=\pi * (\frac{12}{2})^2 * 13\\V=\pi * (6)^2 * 13\\V=\pi * 36 * 13\\V=3.14*36*13\\V=113.04*13\\V=1469.52 in^3[/tex]
Now let's find the volume of the second cylinder (d=10, h=11).
[tex]V_{2}=\pi * (\frac{10}{2})^2*11\\V_{2}=\pi * (5)^2*11\\V_{2}=\pi * 25 * 11\\V_{2}=3.14*25*11\\V_{2}=78.5*11\\V_{2}=863.5in^3[/tex]
Lastly, we can subtract the volume of the second cylinder from the volume of the first cylinder.
This gets us a solution of 606.02 cubic inches.
John is ordering a pizza. He wants to choose what he gets randomly. He can get either regular crust or thin crust. Then he can choose either white or red sauce. Last, he chooses either pepperoni, sausage, or ham as his topping. Create a tree diagram below
When solving a problem, a tree diagram depicts the order in which events must be completed.
What is the relevance of a tree diagram?Tree diagrams are very effective in probability because they clearly and simply record all likely scenarios.
The attached Tree Diagram has been used to depict the problem that John is trying to solve.
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Solve number 6 please
Answer:
d
Step-by-step explanation:
if 2 chords of a circle intersect , then the product of the parts of one chord is equal to the product of the parts of the other chord, that is
KN × JN = LN × MN
(x - 4)(x + 23) = (x + 14)(x - 1) ← expand factors on both sides using FOIL
x² + 19x - 92 = x² + 13x - 14 ( subtract x² from both sides )
19x - 92 = 13x - 14 ( subtract 13x from both sides )
6x - 92 = - 14 ( add 92 to both sides )
6x = 78 ( divide both sides by 6 )
x = 13
. The Flower Bouquet flower shop charges $1.50 for placing an order and $0.50 for each flower ordered. Which equation could be used to find n,the number of flowers purchased if the total bill was $9. (1 point)
A $9 = (0.50 + 1.50)n
B 0.50n + 1.50 = $9
C $9 = 50n + 1.50
D 0.50 n + 1.50n = $9
The equation that could be used to find the number of flowers purchased if the total bill was $9 is:0.50n + 1.50 = $9.
Since each flower costs $0.50, multiplying the cost per flower by the number of flowers (n) gives the total cost of the flowers then 0.50n represents the cost of the flowers.
and, 1.50 represents the fixed cost for placing the order.
and $9 represents the total bill, which includes the cost of the flowers and the fixed cost.
By adding the cost of the flowers (0.50n) to the fixed cost (1.50), the equation sets the total bill equal to $9 we get the Equation as
0.50n + 1.50 = $9
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Which equation represents the line that is parallel to y = -3 and passes through (-1, 6)?
y = __
Answer:
Step-by-step explanation:
We'll look for an equation with the form y=mx+b, where m is the slope and b the y-intercept (the value of y when x=0).
A parallel line will have the same slope as the reference line, in this case it is 0, since y = -3 has no x term in it [y is independent of x]. The line we want will have the form y=b, since m is 0. Put the given point, (-1,6) into this equation to find b:
y=b
6=b
The equation of a line parallel to y=-3 is y=6.
See attached plot.
The base of a hexagonal prism has an area of 54 square feet. the height of the prism is 4 feet. find the volume of the prism.
v =ft
Step-by-step explanation:
v=fgtd (9809)=09843 ans that give 100
1. Quadrilateral BGTS has vertices B (-3, 4), G (-1, 3), T (-1, 1), and S (-4, 2). Graph BGTS and its image after a translation along (5,0) and a reflection in the x-axis.
The image is attached with answer
What is a Quadrilateral ?
A quadrilateral is a polygon with four sides , four angles and four vertices.
It is given in the question that
Quadrilateral BGTS has vertices B (-3, 4), G (-1, 3), T (-1, 1), and S (-4, 2).
A graph has to be drawn of
its image after a translation along (5,0) and a reflection in the x-axis.
The coordinates after translation and reflection is is B (8, -4), G (6, -3), T (6, -1), and S (7, -2).
The image is attached with the answer .
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Solve for h
h - 3h - 8 = 14
H=?
Answer:
-22
Step-by-step explanation:
h-3h-8=14
-2h=14+8
-2h=22
h=-11
The initial step that must be taken before solving almost any problem is to understand what the problem is asking for us to do and what is provided to us to complete that goal. Looking at the problem statement, we can see that we are being requested to solve for h and we are provided an expression to do so. Let's begin solving the expression by combining like terms.
Combine like terms
[tex]h - 3h - 8 = 14[/tex][tex](h - 3h) - 8 = 14[/tex][tex](- 2h) - 8 = 14[/tex]Just a quick explanation on what combine like terms means, it basically just means to combine the coefficients of the numbers associated with the same variables. Like in this example we can combine h and -3h because they have have the variable h associated with them.
Add 8 to both sides
[tex](- 2h) - 8 = 14[/tex][tex](- 2h) - 8+ 8 = 14 + 8[/tex][tex]- 2h= 22[/tex]Divide both sides by -2
[tex]- 2h= 22[/tex][tex]\frac{- 2h}{-2}= \frac{22}{-2}[/tex][tex]h= \frac{22}{-2}[/tex]Simplify the expression
[tex]h= - \frac{22/2}{2/2}[/tex][tex]h= - \frac{11}{1}[/tex][tex]h= - 11[/tex]Therefore, after completing the steps above we were able to determine that the value of h is equal to -11.
Find the values of a and b if,
ab=12 and a+b=7
Answer:
Given
Ab = 12
A+b = 7
As a + b = 7,
A and b must be less than 7
A =6
B =2
Ab = 12
6 x 2 = 12
6, 2 < 7
Step-by-step explanation:
Hope this helps
This table shows the number of bottled soft drinks sold in a corner store each day during the past week.
For which situation is the mean the best measure of central tendency to use?
A. If the owner wants to know the average number of bottled soft drinks sold per day.
B. If the owner wants to know which day saw the greatest number of sales.
C. If the owner wants to plan on having as many bottled soft drinks in stock to get through the weekend.
D. If the owner wants to know the number of bottled soft drink sales for which the number of sales below it and above it were equal.
Answer:
A
Step-by-step explanation:
Well automatically we can eliminate B and D because they make no sense whatsoever. So that leaves us with A and C. A is telling us to find the mean so it has to be that one. So, with procces of elimination the answer has to be A. I know this because the owner needs to find an average to see how many bottles he will have sold daily. ;) Your very much welcome
4 x 12 = 6 x n 4
6
8
12
Answer:
2
Step-by-step explanation:
4 x 12 = 6 x 4 x n
Which gives
48 = 24n
48/ 24 = n
so n = 2
Select the correct answer.
What is the solution for x in the equation?
Answer:
Where is the equation?
Step-by-step explanation:
And where are the options to select?