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Serjik [45]
3 years ago
15

Sara is painting her house. to paint the second floor, she needs to lean her 15 foot ladder against her house to reach a point t

hat is 11 feet above the ground
A) What is the angle of elevation that Sara's ladder will form with the ground?
B) How far from the base of the house should Sarah place the base of her ladder?
Mathematics
1 answer:
nekit [7.7K]3 years ago
5 0

For A)

arcsin(11/15)=angle of elevation

47.17=angle of elevation

For B)

tan(47.17)=11/x

11/tan(47.17)=x

10.2=x

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Yes, I shall give you an idea of how to start it. :)

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7 0
3 years ago
Read 2 more answers
A truck that can carry no more than 6500 lb is being used to transport refrigerators and upright pianos. Each refrigerator weigh
anyanavicka [17]

Answer:

Equation: 300x+425y= 6500 (if you assume that you would get an exact total)

Answer: Yes, 11 refridgerators and 9 pianos will overload the truck because 11x300=3,300 and 9x425=3,825 which in total equals 7,125, which is way too much for the truck.

An equation that works: 300(10)+425(8)=

Step-by-step explanation:

If each refrigerator is 300 pounds and we need to see if 11 would fit on the truck, multiply 300 times 11 which equals 3,300. Next repeat the same step but for the pianos… 425 times 9 which equals 3,825 now you add. You should get 7,125, meaning this ratio is way to large for the truck to carry.

Since this does not work we should try take away one of each. So let’s say the new rati is 10 refrigerators to 8 pianos. We would repeat the same steps from above. 10x300=3,000       8x425=3,400

If we add these, we get 6,400 so the final expression would be 300(10)+425(8)=6,400 which would be the closest the the most you can transport on the truck.

Sorry if this was not the answer you were looking for, I may have misinterpreted the question.

6 0
2 years ago
Find the value of x, which makes the area of this triangle equal 72.
Ghella [55]
Area of a triangle=1/2(base x height)
Area=72, Base=8, Height=2x-3
Plug it in.
72=1/2(8 x (2x-3))
72=1/2(16x-24)
72=8x-12
84=8x
x=10.5
5 0
3 years ago
Read 2 more answers
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Tju [1.3M]

Answer:

<h2>3/10 ÷ 4/5 = 3/8</h2>

Step-by-step explanation:

<h2>3/10 ÷ 4/5 = 0.375 = 3/8</h2>
7 0
2 years ago
PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!
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Answer:

The total change is \frac{1}{16\\}

Step-by-step explanation:

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3 years ago
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