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nata0808 [166]
3 years ago
15

I need help with question 19

Mathematics
1 answer:
Andrej [43]3 years ago
8 0

Answer:

D

Step-by-step explanation:

Rotating 270 puts you in the 4th quadrant.

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A 25-foot ladder is placed against a building. The bottom of the ladder is 7 feet from the building. If the top of the ladder sl
algol [13]

Answer:

As per the statement:

A 25-foot ladder is placed against a building. The bottom of the ladder is 7 feet from the building.

⇒Length of the ladder against a building = 25 foot

and Length of the bottom of the ladder from the building= 7 feet.

You had Before the slip.

Let x be the height of the building where ladder hits the building

By Pythagoras theorem:

\text{Hypotenuse side}^2=\text{Perpendicular}^2+\text{Base}^2

Here, Perpendicular side = Height of the building = x ,  Base = Length of the bottom of the ladder from the building = 7 foot and Hypotenuse side = 25 foot

Substitute the value to solve for x;

25^2=x^2+7^2

625=x^2+49

or

x^2 = 625-49 = 576

x = \sqrt{576} = 24 foot.

⇒Height of the building = 24 foot

Now, if the ladder slips down 4 feet.

You had after slip

⇒Now, the height of the building becomes = 24-4 = 20 foot.

Let y be the distance from the building wall

then by Pythagoras theorem;

y^2+20^2 = 25^2

y^2+400 =625

y^2 = 625-400 = 225

y=\sqrt{225} = 15 foot.

We have to find how many feet will the bottom slide out.

Since, Originally the distance of the bottom from the building = 7 foot

And now, the distance is = 15 foot.

The bottom slide out will be = 15 - 7 =8 foot

Therefore, 8 feet will the bottom slide out

6 0
3 years ago
5x+14-2x=9-(4x+2) can someone help
nekit [7.7K]
5x+14-2x=9-(4x+2)

3x+14=9-4x-2

3x+14=7-4x

7x+14=7

7x=-7

x=-1

Final answer: x=-1
5 0
3 years ago
A 4 pound bag of sugar contains 480 teaspoons and costs $3.60. A batch of muffins uses half a cup of sugar. (1 cup = 48 teaspoon
Marianna [84]

Answer:

batches- 20

cost of each batch- $0.18

Step-by-step explanation:

480/24 = 20

3.60/24 = 0.18

7 0
2 years ago
Please need help on this question.
Stella [2.4K]

Answer:

(4,5)

Step-by-step explanation:

8 0
3 years ago
A fully-loaded truck is carrying grain to a storage silo. if the truck is 8 feet wide, 40 feet long, and 4 feet deep, how many b
lukranit [14]
8 x 40 x 4 = 1280 cubic feet

1.25 cubic feet = 1 bushel
1 cubic feet = 1/1.25 = 0.8
1280 cubic feet = 0.8 x 1280 = 1024 bushel
7 0
3 years ago
Read 2 more answers
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