question in pic. please help!

Answer:

9(9a-2)

Step-by-step explanation:

81a + (-18)

= 81a - 18

= 9 (9a - 2)

Answer:

9(9a-2)

Step-by-step explanation:

Answer:

74

Step-by-step explanation:

Answer:

The function that describes the height, h in feet, of the rocket, t seconds into launch is h = -16·t² + 138·t

Step-by-step explanation:

The given parameters are;

The initial velocity of the rocket, v = 138 feet per second

The vertical motion formula = h(t) = 0.5·a·t² + v·t + s

The gravitational constant, a = -32 ft./s²

s = The initial height of the rocket

Therefore, he have;

The height of the rocket, t seconds seconds into launch is given as follows;

Height = h = h(t) - s = 0.5·a·t² + v·t

Substituting the known values gives;

h(t) - s = 0.5 × (-32) × t² + 138 × t = -16·t² + 138·t

h = -16·t² + 138·t

The function that describes the height, h in feet, of the rocket, t seconds into launch is h = -16·t² + 138·t.

Hi

For a multiplication , law  sign state : if the two terms of multiplication are of the same sign, result is  positive.  Otherwise, it's negative

here  9 is  positive, and  -0.5  negative.  The two terms have  contrary signs, then the result will be  negative.  

Answer:

en contexto, ora al de arriba pa que te ayude porque nose nada xd

Step-by-step explanation:

The answer is:

Nth term=200n-238

Answer:

374x

brrrrrrrrrrrrruhhhhhhhhhhhhhh

Answer:

374x

Step-by-step explanation:

Just add 32 and 342 together

32 + 342

374

Then add the x back on

374x

Hope this helped :)

Answer:

the quotient is 2x^2+10x-5

Answer:

b = 148.5052112

Step-by-step explanation:

To find the value of b we will use the trigonometry functions

∵ The triangle is a right triangle

∵ The measure of one of its acute angles = 68°

∵ The length of the side opposite to the angle of measure 68° is b

∴ The opposite side = b

∵ The length of the side adjacent to the angle of measure 68° is 60

∴ The adjacent side = 60

∵ The function tan(x) = [tex]\frac{opposite}{adjacent}[/tex]

∴ tan(68°) = [tex]\frac{b}{60}[/tex]

→ Multiply both sides by 60 to cancel the denominator of the right side

∴ 60 × tan(68°) = b

∴ 148.5052112 = b

∴ b = 148.5052112

Answer:

b = 148.5052112

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

2 books in each box.

There are three boxes

2 times 3 equals 6

Answer:

Step-by-step explanation:

company A = 28,000 + 3,000 (x)

company B = 36,000 + 2,000 (x)

where x = no. of years.

28,000 + 3,000 (x) = 36,000 + 2000 (x)

3,000 (x) - 2,000 (x) = 36,000 - 28,000

1,000 (x) = 8,000

x = 8,000

     1,000

company A = 28,000 + 3,000 (8)

company B = 36,000 + 2,000 (8)

Given:

After 8 months, you have been able to save $937.

You have the ability to save $130 per month.

To find:

The model for the situation and y-intercept and rate of change.

Solution:

Let y be the ability to saving after x months.

Ability to save in one month = $130

Ability to save in x months = $130x

So, total ability is

[tex]y=130x+b[/tex]      ...(i)

where, b is initial savings.

After 8 months, you have been able to save $937.  So, the point is (8,937).

Put x=8 and y=937 in (i),

[tex]937=130(8)+b[/tex]

[tex]937=1040+b[/tex]

[tex]937-1040=b[/tex]

[tex]-103=b[/tex]

So, the y-intercept is -103. Here, negative sign represents that we cannot able to save initially or we have loan or liabilities of $103.

Put b=-103 in (i).

[tex]y=130x+(-103)[/tex]  

[tex]y=130x-103[/tex]

On comparing with slope intercept form, we get

Slope = 130 and y-intercept = -103

Therefore, the slope is 130 and y-intercept is -103.

Answer:

5: 6

Step-by-step explanation:

becuase it was basically 100:120 but divide it by 20 and thats  how you get 5;6

Answer:

20x

Step-by-step explanation:

First.... distribute the 8 and 12 to the perenthesis next to them. Then, all like terms. The final answer will be 20 * x or 20x.

Answer:

the answer 50

Step-by-step explanation:

this is because of the triangle therom thing which is all triangles are equal to 180 degrees which means you gotta add 35+95 which gives 130 then subtract 180-130 which equals 50 and thats the missing angle.

Answer:

50

Step-by-step explanation:

'Cause I love my mama UnU

Answer:

As of what I see, your answer is all of them.

Answer:

Step-by-step explanation:

Part A: 3/4 divided by 1/4= 3/4 * 4/1 = 3, Jennifer walks 3 miles per hour.

Part B: 1/8 divided by 1/12= 1/8 * 12/1 = 1.5 or 1 and 1/2 miles per hour

For Part C I dont know, Sorry guys

Answer:

Well i got 4.32 but im not completely sure

Step-by-step explanation:

Answer:

Line ____        Ear

Answer:

It's 144 units^2

Step-by-step explanation:

You have to take your 3/2 and square it, turning it to 9/4 and multiply that by 64, which gives you 144.

Answer:

a

Step-by-step explanation:

Answer:

so A. is the correct answer

Step-by-step explanation:

If Kale is at 2345 feet and needs to reach 3283, he will need to travel another 938 feet.

The correct answer is n=4:)

Answer:

n= 4

Step-by-step explanation:

Answer:

The value of x is 69°

Step-by-step explanation:

In a right angle triangle, if m and n are the two acute angles on it, then

That means if sin(m) = cos(n), then m + n = 90°

Let us use these facts to solve the question

∵ sin(21°) = 0.358

∵ cos(x°) = 0.358

→ That means sin(21°) = cos(x°)

∴ sin(21°) = cos(x°)

→ By using the facts above

∴ 21 + x = 90°

→ Subtract 21 from both sides

∵ 21 - 21 + x = 90 - 21

∴ x = 69°

∴ The value of x is 69°

Answer:

D).

Step-by-step explanation:

usually you got = 2(10)+3(20)+4(40) =240

Answer:

4x-6=-2

Step-by-step explanation:

This is the mathematical form of the equation.

Answer:

6.25 colonies of bacteria per +pH change from 7 to 9

Step-by-step explanation:

It seems to go from 57.5 to 70 or maybe 57 or 58

Either way I will go with my guess of 57.5

Rate of Change= (70-57.5)/(9-7)=(12.5)/(2)=6.25 rate of change for colonies of bacteria per positive pH change from 7 to 9

Step-by-step explanation:

(5x4)/(6x4) - (1x6)/(4x6)

=20/24 - 6/24

= (20-6)/24

=14/24

=7/12

give me brainliest

Answer:

Step-by-step explanation:

Jerome has already read 50 pages of a novel and read p pages each day from Monday to Friday.

If Jerome read at least 85 pages by the end of Friday, inequality will be,

50 + 5p ≥ 85

If Jerome reads 6 pages each day,

For p = 6,

Inequality will be,

50 + 5(6) ≥ 85

80 ≥ 85

It's not true.

Therefore, he will not meet his goal.

If p = 7,

Inequality will be,

50 + 5(7) ≥ 85

85 ≥ 85

It's true.

Therefore, he will meet his goal.

If p = 8,

Inequality will be,

50 + 5(8) ≥ 85

90 ≥ 85

It's true.

Therefore, he will meet his goal.

1. Will not

2. Will

3. Will