y = x^2+8x-7

Use the formula x=-b/2a

Y = X^2+8x-7 Use The Formula X=-b/2a

Answers

Answer 1

b = 8

a = 1

using the formula given

x = -8/2

x = -4


Related Questions

Chanasia buys a plastic bucket. The bucket weighs 460 g. The label on the bucket says made with 20% recycled plastic. How many grams of recycled plastic are used to make Chanasia’s bucket?

Answers

Answer:

92

Step-by-step explanation:

20% of 460 is 92 so it would be 92

Select the zeros of the function

Answers

Answer:

Zeroes are where y=0 (x-intercepts)

I think they are expressed as just the x values since the y value can only be zero, but I could be wrong

the zeroes are at x=-6 and x=-2

so (-6, 0) and (-2, 0)

What is 1,872,521 rounded to the nearest thousand?

Answers

Answer:

1,873,000

Step-by-step explanation:

Answer:Rounded to the nearest thousand is the 4th number. Since the 3 numbers past the 2 is over 500, the rounded number would be 1,873,000.

Step-by-step explanation:Have a great day

Which is NOT true about the transformation below?

A. The orientation of the figure stayed the same.
B. The transformation is a reflection.
C. The two figures are congruent.
D. The pre-image is in Quadrant I.

Answers

Answer:

D IS THE ANSWER

Step-by-step explanation:

I THINK ITS B

Answer:

B

Step-by-step explanation:

Type the expression that results from the following series of steps:
Start with x, subtract 6, then times by 3.​

Answers

Answer:

(x-6)3

hope it helps

You start with the x.

Think of it as a normal expression. For instance, 4-2x3. It's basically the same as that but with a letter replacing the number.

So,

x - 6 x 3

A principal wants to find out if her school needs more bike racks. A survey is taken of 30 students who ride the bus. Why might the sample be biased? Describe in words how a sample could have been done that is more representative of the entire school.

Answers

Answer:

The students who ride the bus most likely won't use the bike racks so it doesn't impact them and they probably don't know if they need more bike racks.

Step-by-step explanation:

A spinner used in a board game is divided into 8 equally sized sectors. Three of these sectors indicate that the player should move his token forward on the board, two of these sectors indicate that the player should move his token backward, and the remaining sectors award the player bonus points but do not move his token on the board. The total area of the sectors that do not allow the player to move his token is 35.9 inches squared. What is the radius of the spinner

Answers

Answer:

5.52 inch

Step-by-step explanation:

Recall :

Area of Sector : θ/ 360 * πr²

Sectors that do not allow movement : (8-3-2) = 3

Total sectors = 8

θ/ 360 = 3/8 ; Area = 35.9

Radius = r

35.9 = 3/8 * π * r²

35.9 / (3/8 * π) = r²

30.472866 = r²

r = √30.472866

r = 5.52 inch

The radius of the spinner is 5.520 inch whose  [tex]\frac{3}{8}[/tex]  sector area is 35.9 inches square.

It is given that the spinner used in a board game is divided into 8 equally sized sectors. three sectors indicate that the player should move his token forward on the board, two sectors indicate that the player should move his token backward, and the remaining sectors award the player bonus points but do not move his token on the board and its area of the sector is 35.9 inches square.

It is required to find the radius of the spinner.

What is the area of the sector?

The region enclosed by the two radii of a circle and the arc is known as a sector's area. In other words sector area is a portion of the circle's area.

We know the formula of sector area (A):

[tex]\rm A= \frac{\theta}{360 \°} \pi r^2[/tex]    Where 'r' is the radius of the circle and [tex]\rm \theta[/tex] is in degree

The remaining sectors = ( Total sectors - Three sectors - Two sectors)

= ( 8 - 3 - 2) ⇒ 3 sectors indicate the player do not move his token

Total sector = 8

[tex]\rm \frac{\theta }{360 \° } = \frac{3}{8} \ when \ A = 35.9 \ inches^2[/tex]

Putting these values in the above formula, we get:

[tex]\rm 35.9 = \frac{3}{8} \pi r^2\\\rm 35.9\times 8 = 3\pi r^2\\\rm 287.2 = 3\pi r^2\\\\\rm \frac{287.2}{3} = \pi r^2\\\\\rm 95.733= \pi r^2\\\rm 30.4728 = r^2[/tex]Where [tex]\rm \pi[/tex] = 3.14159

[tex]\sqrt{30.4728} = r\\\rm 5.520= r \\\rm or = 5.520 \ inch[/tex]

Thus, the radius of the spinner is 5.520 inch.

Learn more about the area of sectors here:

https://brainly.com/question/15849991

helppp pleaseee :)))

Answers

Answer:

1)

Y-intercept: -3

Slope: 2

Equation: y = 2x - 3

Step-by-step explanation:

I just answered one since it was only for 5 points. :)

Select the best term from the box to complete the sentence.

A three-dimentional figure having length, width, and height is called a ___?___

Answers

solid

solid object, solid figure are some other examples

You do not list what the choices are but it can be one of these:

A solid figure

A space figure

If you can answer BOTH CORRECTLY you'll get brainliest

Answers

Answer:

Sorry the pictures re not clear. Could u zoom in? :)

the first one: 18
second one: the last option

Please please help me

Answers

The other guy is correct

A swimming pool measures 10 feet by 8.5 feet by 5 feet. How many cubic feet of water will the swimming pool hold?

Answers

Answer:

425 Cubic Feet

Step-by-step explanation:

Cubic feet is volume meaning that in order to find the volume you must multiply the length, width and the height. The answer is 425

The swimming pool will hold 425 cubic feet of water.

What is the volume of a rectangular prism?

The volume of the rectangular prism is defined as the space in three-dimension covered by the rectangular prism having the sides Length, Width, and Height.

To find the volume of the swimming pool in cubic feet, we need to multiply the length, width, and height of the pool:

The volume is calculated as,

Volume = length x width x height

Volume = 10 ft x 8.5 ft x 5 ft

Volume = 425 cubic feet

Therefore, the swimming pool will hold 425 cubic feet of water.

To know more about volume follow

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Eric has a bag of carrots that weighs 3 pounds. He separates the carrots equally into 10 containers. How many pounds are in each container?

Answers

Answer:

3/10 pounds

Step-by-step explanation:

Distribute 3 pounds equally into 10 containers so it is 3/10 pounds in each container.

A company manufactures computers. Function N represents the number of components that a new employee can assemble per day. Function E represents the number of components that an experienced employee can assemble per day. In both functions, t represents the number of hours worked in one day.
N(t)=50t/t+4
E(t)= 70t/t+3

Which function describes the difference of the number of components assembled per day by the experienced and new employees?
A. D(t)= 10t(2t+13)/t+3
B. D(t)= 10t(2t+13)/ (t+4)(t+3)
C. D(t)= 10t(2t-13)/t+4
D. D(t)=10t(2t-13)/ (t+4)(t+3)

Answers

The difference of the number of components assembled per day by the experienced and new Employees is : D(t)= 10t(2t+13)/ (t+4)(t+3)

Here we perform subtraction :

D(t) = N(t) - E(t)

N(t) = 50t / (t+4)

E(t) = 70t / (t+3)

The difference :

D(t) = E(t) - N(t)

D(t) = [70t / (t+3)] - [50t / (t+4)]

The L.C.M of (t+3) and (t+4) is (t+3)(t+4)

[70t(t+4)] - [50t(t+3)] / (t+3)(t+4)

70t² + 280t - [50t² + 150t] / (t+3)(t+4)

[70t² + 280t - 50t² - 150t] / (t+3)(t+4)

20t² + 130t / (t+3)(t+4)

D(t) = 10t(2t + 13) / (t+3)(t+4)

The difference of the number of components assembled is : D(t)= 10t(2t+13)/ (t+4)(t+3)

Learn more : https://brainly.com/question/1166214

Answer:b

Step-by-step explanation:

plato

Help please 10 points

Answers

Answer:

200

Step-by-step explanation:

basically, all you have to do is plug in 30 for n. You would get -3 + 7(30-1), and then you would get -3 + 7 x 29, and then you would get -3 + 203, and the final answer would be 200

The answer is 200!!!

Can someone explain the answer? ​

Answers

They intersect at (3.6, 0.8)
As fraction (18/5, 4/5)

Please help will give brainliest

Answers

Answer:

For one I think the answer is 14 and my brothers name is ethan!

Step-by-step explanation:

16

Hope that helps you out.

It’s not 12 but what goes on the green box?

Answers

Answer:

9

Step-by-step explanation:

Use exponential rules: add the exponents when multiplying, subtract the exponents when dividing.

Answer:

3^9

Step-by-step explanation:

- Rewrite the division as a fraction. 3^8x3^3/3^2

- Multiply

3^8 by 3^3 by adding the exponents.

3^11/3^2

- Cancel the common factor of 3^11 and 3^2

3^9

Ed has $5.06.
He finds $1.03.
About how much $ does he have now?

Answers

Answer:

Ed now has $6.09

Ed has 6.09 because 5.06 + 1.03 = $6.09

PLLLZZ HHEELLPPP! QUESTION IS BELOW!

Answers

Answer:

32°

Step-by-step explanation:

The two given angles are complementary, it means they add to 90°

Find x:

2x + 10 + x + 8 = 903x + 18 = 903x = 72x = 24

Find Y:

m∠Y = x + 8 = 24 + 8 = 32°

Question 2
Write true or false for each of the following
statements:
2.1
1 is the smallest uneven prime number​

Answers

Answer:

false, 1 is not the smallest uneven prime number as it is not a prime number, prime numbers have 2 and only 2 factors whereas 1 only has 1 factor, as well as this, you can have negative prime numbers

Answer:

False one is not the smallest uneven prime number

The set of data below represent the number of runs scored by a youth baseball team over the course of a season.
Team: 4, 8, 5, 12, 3, 9, 5, 2 Which set of statements about the data is true?

1)Mean < Standard Deviation
2)First Quartile < Standard Deviation
3)Median > Mean
4)Mean > Standard Deviation

Answers

The correct answer will be option (3) Median > Mean

ConceptFirst we will find the mean, median and standard deviation of given dataAfter finding mean, median and standard deviation we will compare them to find the correct answer

How to solve this problem?

The steps are as follow:

The runs scored by youth baseball team over the course of a season is : 4, 8, 5, 12, 3, 9, 5, 2Mean is given as follow:

[tex]x \: = \frac{4 + 8 + 5 + 12 + 3 + 9 + 5 + 2}{8} \\ x = 6[/tex]

So the mean will be 6Arranging the given observation 2,3,4,5,5,8,9,12To find the median the total number observation is 8 which is even so formula to find median will be:

[tex][tex]m = \frac{ { (\frac{n}{2}) }^{th} obs + ( { \frac{n}{2} + 1)}^{th} obs }{2} \\ m= \frac{ { (\frac{8}{2}) }^{th} obs + ( { \frac{8}{2} + 1)}^{th} obs }{2} \\ m= \frac{ { (4) }^{th} obs + ( { 5)}^{th} obs }{2} \\ m= \frac{ { 5} + 5}{2} \\ m = 5[/tex][/tex]

So the correct answer will be option (3) Median > Mean

Learn more about mean and median here:

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Evaluate.
2(4 what is the correct answer?

Answers

The Answer Would Be 16

How I Found The Answer:
2 x 2 x 2 x 2 = 16

Answer:

16

Step-by-step explanation:

2^4= 2 x 2 x 2 x 2 =16

How many degrees is angle x?

Answers

Answer

127

Step-by-step explanation:

First add 42 and 85. Then do 180-(42+85) to get w. Then do 180-w to get x as a line always equals 180

Pls help me and thank youuu

Answers

Answer:

x = 1

Step-by-step explanation:

14 -4x = 10

-4x = -4

x = 1

Answer:

x=1

Step-by-step explanation:

2×7=14

2×2=4

4×1=4

14-4=10

Please please help help me please please ASAP ASAP please

Answers

Answer:1.b  2.i think 5x5   3.a

Step-by-step explanation:

there your ANWERS

find the slope and y intercept for this problem: -2y= -16x+8

Answers

Answer:

Step-by-step explanation:

The slope intercept form of a line is y=mx+b where m=slope and b=y intercept so we can solve for y from what you were given.

-2y=-16x+8

y=8x-4

So the slope is 8 and the y intercept is -4.

why is it important to know the shape of the base of the pyramid

Answers

Answer:The pyramid had sloping sides so that the dead pharaoh could symbolically climb to the sky and live forever. The pyramid represented the rays of the Sun I hope this helps

Step-by-step explanation:

Write a linear equation in slope- intercept form given 2x +5y =35

Answers

Answer:

(0,−7)

Explanation:

To find the y-intercept of an equation, set x equal to 0 and solve: In the case of 2x−5y=35, let's replace all instances of x in the equation with 0 and solve for y: 2(0)−5y=35−5y=35−5y−5=35−5

y=−7

Thus, the y-intercept is at (x y)=

(0,−7).

Solving Quadratic Equations
Directions: Solve the following quadratic equations using the quadratic formula. Show your work
and all answers must be in simplest radical form.
I
a. x2 - 2x - 15 =0
b. x2 + 8x - 10 =0

Answers

Answer:

a) x= 5 or x= -3

b) x = -4 + [tex]\sqrt{26}[/tex] or -4 - [tex]\sqrt{26}[/tex]

Step-by-step explanation:

a) [tex]x^{2}[/tex] - 2x - 15 =0

x = [tex]\frac{-(-2) +\sqrt{(-2)^{2} - 4(1)(-15)}}{2(1)}[/tex]  or  [tex]\frac{-(-2) -\sqrt{(-2)^{2} - 4(1)(-15)}}{2(1)}[/tex]

x= 5 or x=-3

b) [tex]x^{2}[/tex] + 8x - 10 =0

x = [tex]\frac{-(8) +\sqrt{(8)^{2} - 4(1)(-10)}}{2(1)}[/tex]  or  [tex]\frac{-(8) -\sqrt{(8)^{2} - 4(1)(-10)}}{2(1)}[/tex]

x = -4 + [tex]\sqrt{26}[/tex] or -4 - [tex]\sqrt{26}[/tex]

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