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sergey [27]
3 years ago
8

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:

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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  

so

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
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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
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