I never was good at math, so i wanted to ask someone for help,
I'm doing 8th grade math, and this is the problem:

-11 + 9b² = 25

If you can help me I will be very grateful!

Answers

Answer 1

Answer:

b=4

Step-by-step explanation:

-11+9b^2=25

add 11 to both sides

9b^2=36

divide both sides by 9

b^2=4

take the square root of both sides

b=4


Related Questions

who is better Green Bay packers or the bears

Answers

Answer:

green bay packers all dayyy

Step-by-step explanation:

Katie buys a large pizza for $14.99 and bottles of soda for $1.50 each. If the total cost was $23.99, how many bottles of soda (b) did she buy

Answers

The number of soda bottles Katie bought is 6

The given parameters are:

Large Pizza = $14.99Soda = $1.50 per bottleTotal cost = $23.99

Assume the number of soda bottle is x.

So, we have:

[tex]Total = Pizza + Soda \times x[/tex]

This gives

[tex]23.99 = 14.99 + 1.50\times x[/tex]

Subtract 14.99 from both sides of the equations

[tex]9 = 1.50\times x[/tex]

Divide both sides of the equations by 1.5

[tex]6=x[/tex]

Rewrite the equation as

[tex]x = 6[/tex]

Hence, the number of bottles is 6

Read more about linear equations at:

https://brainly.com/question/14323743

• The outside temperature changes -4.8°F in 4 hours. What is the average change in temperature each hour?


-19.2°F

-12.2°F

-1.8°F

-1.2°F

Answers

Answer:

-1.2°F

Step-by-step explanation:

-4.8F = 4 hours

Divide both sides by 4 to get one side to 1 hour

-4.8F/4 = 4 hours / 4

-1.2F = 1 hour

The average change in temperature each hour is -1.2°F

What is Division?

A division is a process of splitting a specific amount into equal parts.

Given that the outside temperature changes -4.8°F in 4 hours

We need to find the average change in temperature each hour

To find this we need to use division.

We need to divide -4.8 by 4

-4.8/4

Minus four point eight divided by 4

-1.2

Hence, the average change in temperature each hour is -1.2°F

To learn more on Division click:

https://brainly.com/question/21416852

#SPJ5

Solve the system using elimination.
x − 4y = 4
3x − 4y = −12

A. (−2,112)

B. (−8,−3)

C. (−8,9)

D. (−2,−112)

Answers

Answer:

B. (-3,-8)

Step-by-step explanation:

I have aced tests on these. You can trust this is correct - plus it's verified by a calculator.

Answer:

B

Step-by-step explanation:

x - 4y = 4 → (1)

3x - 4y = - 12 → (2)

Multiplying (1) by - 1 and adding to (2) will eliminate the y- term

- x + 4y = - 4 → (3)

Add (2) and (3) term by term to eliminate y

2x + 0 = - 16

2x = - 16 ( divide both sides by 2 )

x = - 8

Substitute x = - 8 into either of the 2 equations and solve for y

Substituting into (1)

- 8 - 4y = 4 ( add 8 to both sides )

- 4y = 12 ( divide both sides by - 4 )

y = - 3

solution is (- 8, - 3 ) → B

help me Kaite bought 3 DVD's for $ 45. What was the cost of each DVD's

Answers

Answer:

45/3 = 15

They each where $15

Hope that helps

Step-by-step explanation:

Answer:

$15

Step-by-step explanation:

All you need to do is divide 45 by 3 and you get 15

whats 5 plus 6, i cant find out, its hard

Answers

5+6= 11 , good luck

Answer:

its 11

Step-by-step explanation:

because when you add 6 and 5 your answer will be 11 and its very easy and clear

Sixth grade
X Factor numerical expressions using the distributive property. MX2

Which expression shows a way to factor 63 + 49?
21(3 + 2)
7(9 + 7)
9(7 + 6)
3(21 + 16)

Answers

Hey there!

“63 + 49”

21(3 + 2)

= 21(3) + 21(2)

= 63 + 42

= 105

Option A. isn’t the answer because the equation for that is: 63 + 42

7(9 + 7)

= 7(9) + 7(7)

= 63 + 49

= 112

Option B. could possibly be your answer

9(7 + 6)

= 9(7) + 9(6)

= 63 + 54

= 117

Option C. isn't your answer because the equation for that is: 63 + 54

3(21 + 16)

= 3(21) + 3(16)

= 63 + 48

Option D. isn’t your answer because the equation for that is: 63 + 48

Thus, this makes makes [Option B. 7(9 + 7)] is your answer

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

What is the equation of the line that passes through the point (-5,1)(−5,1) and has a slope of -\frac{1}{5}−5​

Answers

Answer:

Step-by-step explanation:

I will interpret "-\frac{1}{5}−5​" as -(1/5).

We'll look for an equation by starting with the slope intercept format of:

y = mx + b,

where m is the slope and b is the y-intercept (the value of y when x=0).

We are given the slope of -(1/5), I think.  

The equation becomes y = -(1/5)x + b

We want to find a value of b that will force the line to go through point (-5,1).  Do this by putting this point into the equation we have thus far:

y = -(1/5)x + b

1 = -(1/5)*(-5) + b   [point (-5,1)]

1 = 1 + b

b = 0

The equation becomes y = -(1/5)x + 0, or y = -(1/5)x

See the attachment.

how to factorize 5x^2-20y^2​

Answers

Answer:

Step-by-step explanation:

[tex]5x^2-20y^2\\=5(x^{2} -4y^2)\\=5[x^{2} -(2y)^2]\\=5(x+2y)(x-2y)[/tex]

Answer:

Step-by-step explanation:

Directions: Write the expression for each sentence below.

1. the sum of 6 and t = 6 + t

2. the product of y and 11

3. the difference of 4 from 12

4. the quotient of 6 divided by t

5. 19 less than 25

6. increase s by 2s

7. decrease 11 by r

8. add 6 times x and 2 times s

9. the quotient of 17 minus 12 and 2

10. the product of 3 and x less 10

11. the product of 7 and 2 divided by 2

12. decrease the product of 7 and 6 by a number

Answers

Answer:

y-4??

Step-by-step explanation:

help me with this pls

Answers

Answer:

-49

Step-by-step explanation:

Make sure you understand the difference between

-3² and (-3)²

-3² means square 3, then take its opposite. -3² is the same as -(3²) = -9

(-3)² means square the number -3, which means that (-3)² = (-3) × (-3) = 9

Ok, now we can start. Use the correct order of operations.

-3² + (2 - 6)(10) =

= -9 + (-4)(10)

= -9 + (-40)

= -9 - 40

= -49

Given pr // st. pr = 7 cm. ts = 3cm tq = 5cm what the length of pt​

Answers

The question is an illustration of parallel lines, and equivalent ratios

The length of pt is 11.7 cm

Given that:

[tex]pr = 7cm[/tex]

[tex]ts =3cm[/tex]

[tex]tq = 5cm[/tex]

This means that:

[tex]pr : ts = pt : tq[/tex]

Substitute values for pr, ts and tq

[tex]7cm : 3cm =pt : 5cm[/tex]

Express the ratios as fractions

[tex]\frac{7cm }{ 3cm }= \frac{pt}{5cm }[/tex]

Cancel out the common units

[tex]\frac{7}{ 3}= \frac{pt}{5cm }[/tex]

Cross multiply

[tex]3pt = 35cm[/tex]

Divide both sides by 3

[tex]pt = 11.7cm[/tex]

Hence, the length of pt is 11.7 cm

Read more about equivalent ratios at:

https://brainly.com/question/2328454

solve the inequality and graph its solution.

Answers

Answer:

D

Step-by-step explanation:

Hope this helped! :D

Today, everything at the store is on sale. The store offers a 20% discount
If the regular price of an item is x dollars, what is the discount price in dollars?

Answers

Answer:

.8x dollars

Step-by-step explanation:

Twenty percent off means you are paying 80 percent of every dollar, and 80 percent translates to .8 to 1 as a proportion.

Answer:

$.80x

Step-by-step explanation:

0.80x

Find an equivalent ratio in simplest terms:
64 : 24
Submit Answer

Answers

Answer:

64/24

32/12

16/6

8/3

8:3

Hope This Helps!!!

View the lane below and calculate the slope
by using the slope formula

Answers

Answer:

slope = 4

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (3, 12) ← 2 points on the line

m = [tex]\frac{12-0}{3-0}[/tex] = [tex]\frac{12}{3}[/tex] = 4

Answer:

The slope of this line is 4.

Step-by-step explanation:

Pick any 2 points on the graph you want, just make sure they land perfectly on where the line meets the grid. I'll pick (1, 4) and (2, 8) here.

The slope formula is:

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

where (x1, y1) and (x2, y2) are the first and second points you picked above. Now, all you need to do is plug those 2 points into the formula and solve.

[tex]m=\frac{8-4}{2-1}\\\\m=\frac{4}{1}\\\\m=4[/tex]

The slope of this line is 4.

Describe how modern entertainment has begun to reflect the changing makeup of families in America.

Answers

It should be noted that modern entertainment has played a vital role in shaping African culture and homes.

Through modern entertainment, Africans views on marriages have changed. Most African men now marry one wife which was quite different in the olden days when it was believed that an increase in the number of wives one had was used to show superiority.

Also, entertainment has been impactful in the issue of child-bearing. Women now give birth to lesser children at an average of 3 per home.

Lastly, modern entertainment has also influenced the kind of movies and music that are listened to.

Learn more about entertainment on:

https://brainly.com/question/773944

The m1 is twice m3. The m2 is 20 more than the m3 find m4. See picture for full problem. Please and thank you!

Answers

Answer:

Step-by-step explanation:

What is the value of b for the following circle in general form? x2 + y2 + ax +by+c=0​

Answers

Answer:

Step-by-step explanation:

(1). (x - h)² + (y - k)² = r²

where (h, k) are coordinates of a center of the circle with radius r

(2). ( a ± b )² = a² ± 2ab + b²

~~~~~~~~~~~~~~

( 1 , - 2 ) ; r = 3

( x - 1 )² + ( y + 2 )² = 3²

x² - 2x + 1 + y² + 4y + 4 = 9

x² + y² - 2x + 4y - 4 = 0

a = - 2

b = 4

c = - 4

I need help please I’ll give you five stars!

Answers

The answer is no i do not agree

Use an area model to find the quotient: 132 ÷ 3 = ________.

Answers

Answer:

44

Step-by-step explanation:

An Ipad that costs $500 is on sale for 15% off. Then has a 6% tax. What's the final price?​

Answers

Answer:

subject tooo

Step-by-step explanation:

sorry

Answer:

$450.50

Step-by-step explanation:

what’s an perpendicular equation of a line to y=-2/7x+9 that passes through the point (4,-6)

Answers

Answer:

has no prison pits as melatarea

Baby Deirdre wants to arrange 8 blocks in a row. How many different arrangements can the baby make?
There are
ways to arrange the 8 blocks.

Answers

I did some research and I think the answer is 255

My I please have some help
Simplify (89^6 x 91^3)^0

1
(89^6 x 91^3)
0
(89^7 x 91^4)

Answers

Answer:

Any number(except 0) to the power 0 is equal to 1. So the the answer is 1.

Step-by-step explanation:


Which of the following is NOT a solution to the
inequality |-3x + 3) > 6?
A. -4
B. -3
C. -2
D. 3
E. 4.

Answers

Answer:

B

Step-by-step explanation:

Please help me with this

Answers

Answer:

A and F

Step-by-step explanation:

describe this graph of a Ferris wheel

Answers

Answer:

A wheel completes a rotation when it moves 360 degrees. The descriptions of the graph are: The Ferris wheel will rotate 4 times.

Step-by-step explanation:

but what graph

The Ferris wheel makes 4 rotations.

The maximum points on the graph represent when the Ferris wheel is at the top, and the minimum points on the graph represent when the Ferris wheel is at the bottom

Write the equation of the line with a slope of 3 and passes through the point (0,5).
Answer can be in either slope-intercept
form or point-slope
form

Answers

Answer:

y=3x+5

Step-by-step explanation:

y-y1=m(x-x1)

y-5=3(x-0)

y-5=3(x)

y-5=3x

y=3x+5

Note that the slope intercept form is y=mx+b where m=slope and b=y-intercept.

If you're satisfied with the answer, then please mark me as Brainliest. Thank you.

What principal will amount to 20,790 in 2 years at the simple interest of 5% per annum?​

Answers

Answer:

18900

Step-by-step explanation:

I Can't Believe There Still Work It's Christmas Break

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