PLEASE HELP IM RUNNING OUT OF POINTS

Answer:

y^2-1=80

y^2=81

y = positive and negative 9

y2−1=80

Step 1: Add 1 to both sides.

y2−1+1=80+1

y2=81

Step 2: Take square root.

y=±√81

y=9 or y=−9

Answer:

y=9 or y=−9

Answer:

Step-by-step explanation:

The difference between 14 - 3x and - 9x + 7 is

= 14 - 3x - ( - 9x + 7)

= 14 - 3x + 9x - 7

= 6x + 7

hope it helps :)

Answer:

nth term = 0.8 * -5^(n - 1)

First five terms are: 0.8, -4,

20, -100, 500

Step-by-step explanation:

First term, a1 = 0.8

Common ratio, r = -5

a1 = 0.8

Second term = ar

= 0.8 * -5

= -4

Third term = ar²

= 0.8 * -5²

= 0.8 * 25

= 20

Fourth term = ar³

= 0.8 * -5³

= 0.8 * -125

= -100

Fifth term = ar⁴

= 0.8 * -5⁴

= 0.8 * 625

= 500

First five terms are: 0.8, -4,

20, -100, 500

nth term = ar^(n - 1)

= 0.8 * -5^(n - 1)

nth term = 0.8 * -5^(n - 1)

Answer:

In a savings account earning 0.01%, your balance after a year would be $10,001.

Step-by-step explanation:

Answer:

Step-by-step explanation:

A rectangular room must have a perimeter of 20 feet and an area of at least 20 square feet. Describe the possible widths of the room. Round your answers to the nearest tenth of a foot

------------

L + W = 10 --> W = 10 - L

---

L*W >= 20

----

Solve L*W = 20

L*(10 - L) = 20

-L^2 + 10L - 20 = 0

Answer:

If its per month then its 900

Step-by-step explanation:

3600/4 = 900

900*4 = 3600

Answer:

Amanda's computer weighs 3.5 pounds

Step-by-step explanation:

Answer:

13/10 5/3 40-78 C A

Step-by-step explanation:

Answer:

a)  y = 2 x - 1

b)  y = - x + 7

c)  y = 7 x + 2

Step-by-step explanation:

Use a pair of (x1, y1) and (x2, y2) points to find the equation of the line for each tables:

a) (5, 9) and (10, 19)

slope: (y2 - y1) / (x2 - x1) = (19 - 9) / (10 - 5) = 10 / 5 = 2

Then  y = 2 x + b

solve for b in:  9 = 2 (5) + b

b = 9 - 10 = -1

Then   y = 2 x - 1

b) (2, 5) and (5, 2)

slope: (y2 - y1) / (x2 - x1) = (2 - 5) / (5 - 2) = -3 / 3 = -1

Then  y = - x + b

solve for b in:  5 = - (2) + b

b = 5 + 2 = 7

Then   y = - x + 7

c) (3, 23) and (6, 44)

slope: (y2 - y1) / (x2 - x1) = (44 - 23) / (6 - 3) = 21 / 3 = 7

Then  y = 7 x + b

solve for b in:  23 = 7 (3) + b

b = 23 - 21 = 2

Then   y = 7 x + 2

Answer:

3?

Step-by-step explanation:

Answer:

p=3

Step-by-step explanation:

-28 on both sides. should come up with this:

-5p = -15

now divide 5 with both sides. should come up with this

p=3

then youre done!!! hope this helps have a good day :)

Answer:

Vertex is (5,-9)

Step-by-step explanation:

Answer: The vertex is (5,-9).

Step-by-step explanation:

Answer:

4.672 × 10⁶

Step-by-step explanation:

Answer:

w = 5

Step-by-step explanation:

(3w - 1) ÷ 3 - (2w + 1) ÷ 3 = 1

(Graph, just switch w to x)

Answer:

higkygbjoknmmnnnbv

B OR D IT WAS confusing.

Step-by-step explanation:

I tried different equations multiple ways I'm pretty sure I did it wrong

Answer:

Here, hope that answers your question

Answer:

2x^2 + 3x - 2

Step-by-step explanation:

=> area of rectangle = length*width

=> length = (2x -1)

=> width = (x + 2)

=> area = (2x - 1) (x + 2)

=> area= 2x(x + 2) - 1(x + 2)

=> area = 2x^2 + 4x - 1x - 2

=> area = 2x^2 + 3x - 2

hope it helps

Answer:

Step-by-step explanation:

cos²(x) = 1-sin²(x) = 144/169

cos(x) = √(144/169) = 12/13

:::::

tan(x) = sin(x)/cos(x) = (5/13)/(12/13) = (5/13)×(13/12) = 5/12

Answer:

B

Step-by-step explanation:

A square pyramid is one with a square base. The correct option is B.

A square pyramid is one with a square base. It is a right square pyramid with C4v symmetry if the top is perpendicular to the centre of the square. It is an equilateral square pyramid if all edge lengths are equal.

The place at which the up-side down pyramid will intersect with the plane will be a square.

Hence, the correct option is B.

The complete question is:

If a vertical plane cuts through a square pyramid down from the vertex, which of the following best describes the shape of the cross-section?

A. Pentagon

B. Square

C. Rectangle

D. Triangle

Learn more about Square Pyramid:

https://brainly.com/question/15219357

#SPJ2

Answer:

n has to be negative

Answer:

ftudhdldkdjfjdn cbgffrwwof

Answer:

3

Step-by-step explanation:

Use the reverse form of the pythagorean theorem.

c^2 - b^2 = a^2

25 - 16 = 9

square root of 9 is 3

Answer:

Scale factor=8

Step-by-step explanation:

height =(64/8=8)

Length (40/5=8)

Hope this helps ;)

Answer:

Scale Factor: 1/8

Step-by-step explanation:

8/64 simplified (divided by 8) = 1/8

5/40 simplified (divided by 5) = 1/8

Answer:

B. -1/8

Step-by-step explanation:

A. -8(-1/2) + 2 = 6 (incorrect answer)

B. -8(-1/8) +2 = 3 (correct answer)

C. -8(8) + 2 = -62 (incorrect answer)

D. -8(9) + 2 = -70 (incorrect answer)

I hope this helps :)

Answer:x=1 or x=−2

Step-by-step explanation:

Answer:

0.6 + 15b + 4 = 25.6

15b +4 = 25

15b = 25 - 4

15b = 21

b = 21/15

b = 7/5

hope it helps

Answer:

Exact Form:

b=7/5

Answer:

b is the answer okkkkkkkkkkkkkkkk

Answer:

x=45

y=135

z=45