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3 years ago

Help!! please! Will mark Brainliest!

Mathematics

1 answer:

Karo-lina-s [1.5K]3 years ago

7 0

Answer:

A) 264 ft^2, 4 gallons

Step-by-step explanation:

Area of rectangle = 12 ft x 18 ft = 216 ft^2

Area of triangle = 1/2 (28- 18)(12) = 1/2(10)(12) = 60 ft^2

Area of window: 3 ft x 4 ft = 12 ft^2

Areas will be painting = (216 + 60) - 12 = 264 ft^2

1 gallon of paint will cover 70 ft^2 so 264 ft^2 / 70 ft^2 = 3.77 gallons

So Mr. Williams will need 4 gallons of paint to cover 264 square feet of his barn

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The base of 40-foot ladder is 8 feet from the wall. How high is the ladder on the wall (round to the nearest foot)

Nina [5.8K]

Given:

The base of 40-foot ladder is 8 feet from the wall.

To find:

How high is the ladder on the wall (round to the nearest foot).

Solution:

Ladder makes a right angle triangle with wall and ground.

We have,

Length of ladder (hypotenuse)= 40 foot

Base = 8 foot

We need to find the perpendicular to get the height of the ladder on the wall.

Let h be the height of the ladder on the wall.

According to the Pythagoras theorem,

$Hypotenuse^2=Base^2+Perpendicular^2$

$(40)^2=(8)^2+(h)^2$

$1600=64+h^2$

$1600-64=h^2$

$1536=h^2$

Taking square root on both sides.

$\pm \sqrt{1536}=h$

$\pm 39.1918358=h$

Height cannot be negative. Round to the nearest foot.

$h\approx 39$

Therefore, the height of the ladder on the wall is 39 foot.

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3 years ago

George is 4 times Dorothy's age. If George is 56, how old is Dorothy?

yarga [219]

$56 \div 4 = 14$
Dorothy is 14 years old

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3 years ago

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In winter, the price of apples suddenly went up by $ 0 . 7 5 $0.75dollar sign, 0, point, 75 per pound. Sam bought 3 33 pounds of

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Your answer ,It would be 24,925

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2 years ago

Past experience at the Pasadena Travel Agency indicated that 44% of those persons who wanted the agency to plan a vacation for t

kap26 [50]

Answer: Yes. There there been a significant shift upward in the percentage of persons who want to go to Asia.

Step-by-step explanation:

From the information given in the question, past experience at the Pasadena Travel Agency shows that 44% of people who came to plan a vacation with the agency wanted to go to Asia.

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Therefore, there has been a significant shift upward in the percentage of persons who want to go to Asia.

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3 years ago

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zmey [24]

Answer: Its 7,6 HONEYZ

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2 years ago