Answers
Answer:
g(x)=x²/4
Step-by-step explanation:
g(x)=ax²+bx+c
g(0)=0 => c=0
g(-2)=1 => 4a-2b=1;
g(2)=1 => 4a+2b=1 (+)
8a=2 => a=1/4
4*1/4+2b=1=> b=0
=> g(x)=x²/4
Related Questions
This diagram shows triangles ABC and PQR. ABC is mapped to PQR by combining two single transformations. The first is a rotation of 90 degrees clockwise about C. Describe fully the second transformation.
Answers
Answer:
enlarge by -2 by centre point (3,1)
Step-by-step explanation:
8. Find the volume of the cylinder. Round to the
nearest tenth.
6 cm
3 cm
Answers
Answer:
339.3 cm^3
Step-by-step explanation:
V=πr2h=π·62·3≈339.29201
Simplify the given expression.
13 + (14a+5b)
HELP
Answers
Answer:
13 + 14a + 5b
Step-by-step explanation:
when there's a + in front of a expression
in parentheses the expression remains the same
Answer:
14a + 5b + 13
Step-by-step explanation:
Help please this is due in 3 hours
Answers
Answer:
B. (1,0) (2,0) (3,0)
C. (0,4) (0,-4) (6,0)
Step-by-step explanation:
Letter b is asking for points inside of the shaded portion, and letter c is asking for the points that make up the triangle.
You maintain an average balance of $1050 on your credit card which carries a 12% annual interest rate. The monthly interest payment is
Answers
Answer:
157.5
Step-by-step explanation:
Which curve shows an exponential function of the form y-ab^x?
A)
B)
C)
D)
Answers
Answer: A
Step-by-step explanation:
someone please help me!!!!
Answers
Answer:
Choice 3
Step-by-step explanation:
it’s the one that makes more sense!
Answer:
5m=3890
Step-by-step explanation:
5/3890 = 778
then check if its right
5*778 = 3890
(m=778)
What is the y-value when x equals - 13?
y = - 160 - 9(x)
You're studying different function tools
and begin working with this function:
y = -160 - 9(x)
Enter the correct answer.
DONE
Use the equation to answer the question.
y = -160 - 9(x)
ĐOO
Answers
Answer: y= -277
Step-by-step explanation:
First substitute x for 13
y= -160- 9(13)
Then multiply -9 and 13
y= -160 -117
y= -277
Answer:
-43
Step-by-step explanation:
-160-9(-13)
-160-(-117)
-160+117
-43
Find the y-intercept of the function represented by the graph.
Answers
Answer:
sqroot(9) - 7 = -4
sqroot(10) - 7 = -3.838
sqroot(11) - 7 = -3.683
sqroot(12) - 7 = -3.536
It isd not equal to -4 but pretty close so I am thinking that B is the right choice.
Answer is B
Step-by-step explanation:
Work out the simultaneous equation. Work out the value of x and y
6x+5y=4.5
3x-2y=9
Answers
x= 2 and y= -1.5
Answer: (x,y) = (2, -1.5)
Step-by-step explanation:
6x + 5y = 4.5
y = 3+2/3y
= 6 (3+2/3y) +5y = 4.5
y = -1.5
For x, x = 3 + 2/3 (-1.5)
x = 2
Somebody help #9 geometry
Answers
Answer:
[tex]41.1units^2[/tex]
Step-by-step explanation:
[tex]A=\frac{h_{b}b }{2} \\=\frac{8*4}{2} \\=16units^2[/tex](triangle)
[tex]A=\frac{\pi r^2}{2}\\\frac{\pi 4^2}{2}\\=25.13units^2[/tex](semicircle)
Add both together
[tex]16+25.13\\=41.13units^2[/tex]
I need help very bad please!!!!!
Answers
Answer:
It is also B again. Your welcome
Answer:
It is B
Step-by-step explanation:
Hi!
Got a question!
The question is: Find the volume of the shape above(if youre using the app) or below ( if you are using the website ).
Thanks !!
Answers
Answer:
404.09x cm³ (to 5 s.f.),
where x is the unknown height of the shape.
Step-by-step explanation:
Volume of the shape
= base area × height
= (large semicircle- small semicircle) × thickness of shape
Area of circle= [tex]\pi {r}^{2} [/tex]
Area of semicircle= [tex] \frac{1}{2} (\pi)( {r}^{2} )[/tex]
Diameter of small circle= 14
Radius= diameter ÷2
radius= 14 ÷2
radius = 7 cm
Area of small semicircle
[tex] = \frac{1}{2} (\pi)( {7}^{2} ) \\ = \frac{49}{2} \pi[/tex]
Radius of large semicircle
= 35 ÷2
= 17.5 cm
Area of large semicircle
[tex] = \frac{1}{2} (\pi)( {17.5}^{2} ) \\ = \frac{1225}{8} \pi[/tex]
Base area of shape
[tex] = \frac{1225}{8}\pi - \frac{49}{2} \pi \\ = \frac{1029}{8} \pi[/tex]
Since the height if the shape is not given, I'm afraid I cant help you find the volume.
Let the height of the shape be x cm.
Volume of shape= [tex] \frac{1029x}{8} \pi \: cm^{3} [/tex]
Find the area and circumference of the circle shown
on the right. The radius is measured in inches.
Area =
Circumference =
Answers
The 7 dwarves only have 4 beds, so 3 dwarves sleep on the floor. How many different ways can 4 dwarves be chosen to sleep on the beds?
Answers
Answer:
whoever the smallest dwarves are
Step-by-step explanation:
the smaller you are, the more of a dwarf you are
Answer: I'm not positive but the answer may be 28
Step-by-step explanation: 7 dwarves x 4 beds = 28 possibilities
Please give me the answer
Answers
Answer:
52
Step-by-step explanation:
sorry if it's wrong
Monte's Autorana is having an end-of-year clearance in which the TV ads proclaim that
all cars are sold at 5% markup over the dealer's cost. Monte has a new Exfinity for sale
for $18,970. On the Internet, you find out that this particular model has a dealer cost of
$17,500. Is Monte being honest in his advertising?
Answers
Answer:
No
Step-by-step explanation:
We first write out $17,500 as a multiplication to 5%
New price = 17500 x 1.05 = 18375 = $18,375
18375-17500 = 875
We then work out the tax on just the mark up of $875 increase
20% mark up = 875 x 0.20 = 175
18.375+175 = 18550
= $18,550 charge to be considered for 5%
However Monte would argue that tax on tax also applies to 875 x 1.20 = 1050
=$1050 and he is just asking to meet half tax costs an extra 10% of his own tax back of 17.500 x 20% that he paid = 17500 x 0.20 = 3500
tax he paid inclusive or non inclusive would be the same.
= $3500
10% of this = 3500 x 0.10 = 350
18550+350 = 18,900
Therefore it is not dishonest if mentioned in the terms and conditions.
We also universally can round 5% up by applying other charges to include promotion costs and even apply more for administration costs.
please help ASAP will give brainiest :)
find the third angle of a triangle it two of the angles measure 29 degrees and 87 degrees? A) 58 B)64 C) 93 D)116
Answers
Answer:
64 degrees
Step-by-step explanation:
Angles in a triangle add up to 180
87 + 29 = 116
Final angle must be 180 - 116 = 64
Answer:
Hello,
B) 64
Step-by-step explanation:
29 + 87 + X = 180
X = 180 - 29 - 87 = 180 - 116 = 64
Which expression has the same value as -18 divided by -9?
-18 divided by 2
-12 divided by (-3)
-10 divided by 5
-8 divided by (-4)
Answers
Answer:
-8 divided by (-4)Step-by-step explanation:
-18 divided by -9 is +2 and that is what you want.
-18 divided by 2 is -9, not correct.
-12 divided by (-3) is +4, not correct.
-10 divided by 5 is -2, not correct.
Leaving the correct answer: -8 divided by (-4) is +2.
Remember: a negative times a negative equals a positive.
Nevaeh's coffee shop starts the day with $50 in the cash register. The shop earns $25 each hour for the 8 hours it is open. Using a linear model, Nevaeh records the total amount of money, y, in dollars, in theregister xhours after the shop opens. Use this information to answer any questions that follow. What does the y-intercept of Nevaeh's model represent?
A. The amount of money in the register at the start of the day.
B. The total amount of money in the register at the end of the day.
C. The amount of money the shop earns each hour it is open.
D. The total amount of money in the register 1 hour after the shop opens.
Answers
Answer:
b
Step-by-step explanation:
Help me with part B and C appease!! No clowning around whoever help me, will get 30 points and I will brainliest you!!! <3 please help!!
Answers
Answer:
Step-by-step explanation:
a.
y=0.75x
y-y1=(y2-y1)/(x2-x1)×(x-x1)
y-3=(6-3)/(8-4) (x-4)
y-3=3/4(x-4)
y-3=3/4 x-3
y=3/4 x-3+3
y=3/4 x
if y=f(x)
f(x)=0.75x
c.
f(12)=0.75×12=9$
Estimate 782 divided by 50.
Answers
Answer: 15.64 in exact form, and 16 as an estimate.
I need help for a project! What would the variables be defined as!?
Marvin burned 8 calories per minute on a treadmill and 10 calories
per minute on an elliptical trainer for a total of 560 calories in 60
minutes. Write and solve a system of linear equations to determine
how many minutes he spent on each machine.
Answers
2 1/5x * 1 7/10 y * 4 3/5 x 1 7/10 (* 7 4/50)
Finds the answer
10 6/50x * 7 41/50y (* 7/4/50) = 56
79 13/100 (* 7 4/50) = 56
560 = 56 (10x)
x = 5 6/10
7 (y) = 56 (7y)
8 = 56/7 (y)
y = 8
x = 5 6/10
6/10 of 560 = 336
336/60 = x
336/60 = 5 6/10
Find x and y
Need done before 11:59
Answers
Answer:
Step-by-step explanation:
(3x + 6)° = 78°
3x = 72°
x = 24°
z = 180° - 78° = 102°
Answer:
x= 102
z= 24
Hope it will help you :)
Can someone help me with this?
Answers
Answer:
7
Step-by-step explanation:
Calculate and sum up the first three terms.
We get:
4[ (1/2)^(1-1) + (1/2)^(2-1) + (1/2)^(3 - 1) ], OR
4[ 1 + (1/2) + (1/2)^2 ], or
4[1 + 1/2 + 1/4} = 4[7/4] = 7
what is the value of this expression 4 + 6 (4.3 + 8 )
-2.1
Answers
Answer:
The answer is 20.2
Step-by-step explanation:
always start with the number is parentheses
Answer:75.7
Step-by-step explanation:
Which equation has a constant of proportionality equally to 2? PLS HELP I WILL MARK AS BRAINLIEST
Answers
Hello there!
A would be the correct answer since 10 divided by 5 equals 2 and so it would be 2x.
B is wrong since it has a constant of proportionality equal to 1.
C is wrong since it has a constant of proportionality equal to 1/2.
D is wrong since it has a constant of proportionality equal to 11.
Answer:
A
Step-by-step explanation:
The equation of proportional quantities is
y = kx ← k is the constant of proportionality
A
y = [tex]\frac{10}{5}[/tex] x = 2x ← with k = 2
B
y = [tex]\frac{2}{2}[/tex] x = x ← with k = 1
C
y = [tex]\frac{2}{4}[/tex] x = [tex]\frac{1}{2}[/tex] x ← with k = [tex]\frac{1}{2}[/tex]
D
y = [tex]\frac{22}{2}[/tex] x = 11x ← with k = 11
Thus A is the required equation
400 people are asked if they drink tea
7/10 say yes and 20% of the people who say yes drink three cups a day
Answers
Answer:
56 people drink 3 cups daily
Step-by-step explanation:
What's the total number of people that drink 3 cups?
Total number of people = 400
7 / 10 were asked said yes
Number of people that said yes = (7 / 10) × 400 = 280
280 people drink tea.
20% of 280 people drink 3 cups daily, whats the number = ?
20% of 280 = ?
20 / 100 = x / 280
(20 × 280) = (100 × x)
5600 = 100x
X = 5600 / 100
X = 56 people
56 people drink 3 cups of tea daily.
Answer:
56 people drink 3 cups daily
Step-by-step explanation:
find the vertical asymptote(s) of the function
Answers
Answer:
x = -1 and x = 4
Step-by-step explanation:
What is the value of y?
Answers
Answer:
2nd answer : 6[tex]\sqrt{3}[/tex]
Step-by-step explanation:
144-36=108
[tex]\sqrt{108)=[/tex] 6[tex]\sqrt{3}[/tex]