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2 years ago

14

It takes 1/3 pint of paint to cover a birdhouse. There are 12 1/3 pints of paint in a can. Write and evaluate a division express

ion to find the number of birdhouses
that can be painted whats the answer?

2 answers:

aivan3 [116]2 years ago

8 0

The answer is 41 good luck

labwork [276]2 years ago

3 0

Answer: 41

<em>Good Luck!</em>

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Does anyone know 20=b/3 is in a one step equation

inna [77]

Answer:

b=60

Step-by-step explanation:

All you have to do in this equation is multiply both sides by 20 as we want to have the variable b on one side by itself. Doing this we get 60=b.

4 0

3 years ago

Read 2 more answers

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:

<u><em>Step(i):-</em></u>

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

⇒ $x = \frac{5}{4}$

<em> The rocket hit the ground at </em> $x = \frac{5}{4}$ <em></em>

<u><em>Step(ii):</em></u>-

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

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

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

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

<em>The maximum height of the rocket = 12.468 feet</em>

4 0

3 years ago

Can someone help me???

amm1812

Answer:

r=-189

Step-by-step explanation:

Do U want a Step by step explanation?

8 0

3 years ago

2cos^2x = 1 <br><br> Solve for 0-360 degrees

Tems11 [23]

Answer:

45,135,315,225

Step-by-step explanation:

2cos^2x = 1

Divide each side by 2

cos^2x = 1/2

Take the square root of each side

sqrt( cos^2 x) = ±sqrt (1/2)

cos x =±sqrt (1/2)

Make into two separate equations

cos x =sqrt (1/2) cos x = - sqrt(1/2)

Take the inverse cos of each side

cos ^-1 cos (x) = cos ^-1 (sqrt (1/2)) cos ^-1 cos (x) = cos ^-1 (-sqrt (1/2))

x = cos ^-1 (sqrt (1/2)) x = cos ^-1 (-sqrt (1/2))

x = 45 +360 n x = 135+ 360n

x = 315+360 n x =225+360n

Between 0 and 360

45,135,315,225

5 0

2 years ago

Read 2 more answers

Solve the equation. Show work for partial credit.

Natali5045456 [20]

Answer:

x = $\frac{8}{5}$

Step-by-step explanation:

Given

$\frac{5}{x}$ + $\frac{3}{x}$ = 5 ← combine terms on left side

$\frac{8}{x}$ = 5 ( multiply both sides by x )

8 = 5x ( divide both sides by 5 )

$\frac{8}{5}$ = x

8 0

3 years ago