4 years ago

Rewrite y = 9x + 7 into standard form. Pleas help!

Mathematics

2 answers:

Sonbull [250]4 years ago

8 0

-9x + y = 7 is your answer have a good day

Sophie [7]4 years ago

3 0

9x - y = -7 is the answer

You might be interested in

Pleasee help me i will give you 40 points. in the boxes it says amount of money or amount of houses.

Montano1993 [528]

Answer: type it in quizlet

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

there are 5 walnut trees currently in the park park workers will plant 8 more walnut trees today how many walnut trees will the

Salsk061 [2.6K]

Answer:13

Step-by-step explanation:

8 0

3 years ago

Amelia launched her science fair rocket, and then backed away. The path of the rocket is given by the equation below, where y is

Mamont248 [21]

Answer:

1)The rocket hit the ground at $x = \frac{5}{4}$

2)The maximum height of the rocket = 12.468 feet

Step-by-step explanation:

Step(i):-

Given equation

y = -2 x² + 5 x + 7 ...(i)

Differentiating equation (i) with respective to 'x' , we get

$\frac{dy}{dx} = -2( 2x) +5(1) = -4x +5$

Equating zero

$\frac{dy}{dx} = 0$

⇒ -4 x +5 =0

⇒ -4 x = -5

⇒ $x = \frac{5}{4}$

The rocket hit the ground at $x = \frac{5}{4}$

Step(ii):-

$\frac{dy}{dx} = -4x +5$ ...(ii)

Again differentiating equation (ii) with respective to 'x' , we get

$\frac{d^{2} y}{dx^{2} } = - 4(1)$

The maximum height at x = $\frac{-5}{4}$

y = -2 x² + 5 x + 7

$y = -2 (\frac{5}{4})^{2} + 5 (\frac{5}{4} ) + 7$

$y = \frac{-2(25)+ 25 (16)+7(64)}{64}$

$y = \frac{798}{64} = 12.468 feet$

The maximum height of the rocket = 12.468 feet

4 0

3 years ago

Serect the correct answer.

Debora [2.8K]

Answer:

m = 2d + 15

m = d + 22

8 0

3 years ago

17. Does the table represent an exponential function? (1 point)

Aleksandr [31]

B. Yes it's an exponential function because the y is increasing rapidly without a constant rate of change

5 0

4 years ago

Read 2 more answers