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2 years ago

On a scale drawing, the scale factor is 2 in:24 ft. The actual tree is 84 feet tall

Mathematics

1 answer:

Gekata [30.6K]2 years ago

6 0

Answer:

7ft

Step-by-step explanation:

Proportions:

2ft ⇒ 24ft

Tft ⇒ 84ft

T = 7ft

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3 years ago

A water balloon is 5 feet above the ground when Sally launches it into the air. Use the quadratic equation 0 = -t^2 + 4t + 5 to

rodikova [14]

Answer:

$t=5\ sec$

Step-by-step explanation:

we have

$-t^{2} +4t+5=0$

Solve the quadratic equation to find the zero's or x-intercepts

Remember that

The x-intercepts are the values of x when the value of y is equal to zero ( water balloon reach the ground)

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

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substitute in the formula

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therefore

the solution is $t=5\ sec$

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Alenkasestr [34]

Answer:

Hi!

To solve this we can begin by adding 20 to both sides

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