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2 years ago

Pleaseee helppppp!!!!!!!!!

Mathematics

1 answer:

Andre45 [30]2 years ago

3 0

Answer:

Step-by-step explanation:

the total angle is 89 and we are also give two of the parts

89-30-44=15°

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A ball is launched into the sky at 272 feet per second from the roof of a skyscraper 1,344 feet tall. The equation for the ball’

xz_007 [3.2K]

When the ball is in the ground, its height is basically equal to zero thus making our equation,

-16t^2 + 272t + 1344 = 0

Simplifying the equation will give us,

- t^2 + 17t + 84 = 0 or t^2 – 17t – 84 = 0

Factoring out the equation will give us,

(t – 21)(t + 4) = 0

Thus, t = 21 or t = -4. -4 is an extraneous root. Thus, the answer is t = 21.

Answer: 21 seconds

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2 years ago

Melvin is helping his teachers plan a field trip. There are 255 people going on the field trip and each school bus holds 56 peop

anzhelika [568]

255/56 = 4.55....

You can't have 0.55... buses so you round that up to 1.

Therefore 4+1 = 5 so 5 buses would be the minimum.

5 0

2 years ago

Read 2 more answers

a rectangular pyramid has a volume of 190 cubic centimeters. Find two possible sets of measurements for the base area and height

DerKrebs [107]

<h3>One possible set for the base area and height of the pyramid is 570 cm and 1 cm respectively</h3><h3>Other possible set for the base area and height of the pyramid is 285 cm and 2 cm respectively</h3>

Solution:

The volume of rectangular pyramid is given as:

$Volume = \frac{1}{3} \times base\ area \times height$

Given that,

Rectangular pyramid has a volume of 190 cubic centimeters

$190= \frac{1}{3} \times base\ area \times height$

Substitute, base area = 570 and height = 1

Then we get,

$190 = \frac{1}{3} \times 570 \times 1\\\\190 = 190$

Thus one possible set for the base area and height of the pyramid is 570 cm and 1 cm respectively

Substitute, base area = 285 and height = 2

$190 = \frac{1}{3} \times 285 \times 2\\\\190 = \frac{1}{3} \times 570\\\\190 = 190$

Thus other possible set for the base area and height of the pyramid is 285 cm and 2 cm respectively

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3 years ago

Order the set of numbers from least to greatest : 2.71,2 3/4, 5, 5/2

Sholpan [36]

Answer: 5/2, 2.71, 2 3/4 , 5

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2 years ago

2(7y+4x+2z)+2(6y+9x+5z

grandymaker [24]

Answer:

2(7y+4x+2z+1)

Step-by-step explanation:

Factor out the 2 from the expression

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2 years ago