3 years ago

The sum of 5 and the twice a number is at most 27

1 answer:

3 0

If you are looking to write an inequality equation that models this situation, then the answer would be: $5+2x\leq 27$ . The "at most" signals to use the less than or equal to sign.

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If an object is dropped from a height of 144 feet, the function h(t)=-16t^2+144 gives the height of the object after t seconds.

shtirl [24]

Answer:

A. 3s

Step-by-step explanation:

The height of the object after t seconds is given by:

$h(t) = -16t^2 + 144$

When will the object hit the ground?

It hits the ground after t seconds, and t is found when $h(t) = 0$ . So

$h(t) = -16t^2 + 144$

$0 = -16t^2 + 144$

$16t^2 = 144$

$t^2 = \frac{144}{16}$

$t^2 = 9$

$t = \sqrt{9}$

$t = 3$

3 seconds, so the correct answer is given by option a.

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3 years ago

A circular foundation has a radius of 9.4 feet. Find it's diameter and circumference to the nearest tenth

Ganezh [65]

The diameter of the circular foundation would be 18.8 feet, and the circumference would be 59.1 feet.

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3 years ago

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X + 78 = 90 can someone solve this for me please?

kondaur [170]

Let's solve your equation step-by-step.

x+78=90

Step 1: Subtract 78 from both sides.

x+78−78=90−78

x=12

Please put brainliest!

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3 years ago

Which ordered pair is a reflection of (3, 7) across the y-axis?

stich3 [128]

If its a reflection across the y axis the x value is reflected and the y value stays the same, so (-3,7)

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3 years ago

Gena wants to estimate the quotient of –21.87 divided by 4.79. Which expression shows the best expression to estimate the quotie

allochka39001 [22]

Answer:

Step-by-step explanation:

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4 years ago

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