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prisoha [69]
3 years ago
11

A building that is 90 feet tall cast a shadow 30 feet long what is the angle of elevation of the sun

Mathematics
1 answer:
shusha [124]3 years ago
8 0

Answer: 10%

decimal form: 0.1

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Please help I need an answer ASAP !
Mila [183]
Well, 4+1=5, so we need to first find:
150 \div 5 = 30
Ivan gets
30 \times 4 = 120
Tanya gets
30 \times 1 = 30
120 - 30 =  \boxed{90}

6 0
3 years ago
Prove that ax+by+c=0 represent the eqn of straight line
ivann1987 [24]
If we rewrite it as y=mx+d (which can be taken from here from subtracting ax and c from both sides, then dividing b, resulting in y=(-a/b)(x)-c/b. We can then substitute -a/b for m and -c/b for d), if d=0, then we have m as a constant and as we add a specific number to y (that number being m) every time the x value increases by 1, it therefore forms a straight line. If d is not 0, then we simply add d to every single number - this is still a straight line due to that we still add a specific number to y every time x increases by 1 every single time
4 0
2 years ago
A new car that sells for $28,000 depreicates 25% each year. Write a function that models the value of the car. Find the value of
BartSMP [9]

Answer:

<h2>88859.375  &  f(n)= 28000(0.75)×</h2>

Step-by-step explanation:

using the information on the problem a function can can be made

f(n)= 28000(0.75)×

where x is the amount of years

plug in 4 for x in the equation to get

f(4)=8859.375

5 0
2 years ago
One cases of books weight 35 pounds.One case of magazines weights 23 pounds.A book store wants to ship 72 cases of books and 94
schepotkina [342]
I'm sorry but it's bugging me that you aid 'one cases', you can't have the plural of something that is strictly singular.

Now: for your answer.
72*35=2520
94*23=2162
2520+2162=4682

The total wight is 4682 pounds.

Hope this helps
6 0
2 years ago
What is the area of this figure? <br><br> Enter your answer in the box
Anvisha [2.4K]
Area of box : 18*18, which is 324

area of larger triangle : 18*16/2 which is 144

area of larger triangle : 8*16/2 which is 64

add them all to get 532
7 0
3 years ago
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