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3 years ago

Write 74 in expanded form. Then check all that apply.

Mathematics

1 answer:

ASHA 777 [7]3 years ago

7 0

Answer:

7x7x7x7

Step-by-step explanation:

The exponent is 4. The exponent tells you to multiply 7 together 4 times

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Brendan is building a dog house, and the

Pani-rosa [81]

Answer:

B. 46 ft²

Step-by-step explanation:

Two sides are rectangles 3.1 ft by 5 ft.

One side is a rectangle 5 ft by 3 ft.

area = 2(3.1 ft × 5 ft) + (5 ft × 3 ft)

area = 46 ft²

8 0

3 years ago

What is the measure of the vertex angle of an isosceles

pshichka [43]

Answer:

A) 96

Step-by-step explanation:

The 2 base angles are both 42* thus adding up to 84*. 180-84=96

You are welcome.

3 0

3 years ago

After a baseball is hit, the height h (in feet) of the ball above the ground t seconds after it is hit can be approximated by th

lubasha [3.4K]

Answer:

The ball will take 4.05 seconds to hit the ground.

Step-by-step explanation:

we have

$h=-16t^{2}+64t+3$

This is a quadratic equation (vertical parabola) open down

The vertex is a maximum

we know that

The ball hit the ground when h=0

Solve the quadratic equation

For h=0

$-16t^{2}+64t+3=0$

The formula to solve a quadratic equation of the form

$at^{2} +bt+c=0$ is equal to

$t=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16t^{2}+64t+3=0$

$a=-16\\b=64\\c=3$

substitute in the formula

$t=\frac{-64(+/-)\sqrt{64^{2}-4(-16)(3)}} {2(-16)}$

$t=\frac{-64(+/-)\sqrt{4,288}} {-32}$

$t=\frac{64(-)\sqrt{4,288}} {32}=-0.05\ sec$ ---> the time cannot be a negative number

$t=\frac{64(+)\sqrt{4,288}} {32}=4.05\ sec$

therefore

The ball will take 4.05 seconds to hit the ground.

4 0

3 years ago

Dave was invited to a birthday party that ended at 7:40. If it lasted 3 hours and 45 minutes what time did the party start?

irinina [24]

The party startef at 3.55

3 0

4 years ago

Read 2 more answers

What is the equation for each line?

WARRIOR [948]

Answer:

the equation is

Step-by-step explanation:

a line is typically written as y=mx+b where m is the slope and b is the y-intercept

3 0

3 years ago