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valkas [14]
3 years ago
15

Find the size of angle BAC. Give your answer to 3 significant figures

Mathematics
1 answer:
Alex777 [14]3 years ago
6 0

Answer:

50.5

Step-by-step explanation:

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Brainliest for anyone if they get this CORRECT.
oee [108]

answer is D7/2

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4 0
3 years ago
Tommy and Erin are building a skateboard ramp. They want the ramp to be 3 feet tall and 5 feet long. Tommy thinks that they can
UNO [17]

Answer:

The answer is below

Step-by-step explanation:

The ramp has the form of a triangle. The height of the ramp is the vertical side of a triangle, the top of the frame is the hypotenuse while the length of the ramp is the base side of the triangle.

Let the hypotenuse be b, length be a and height be c Hence:

b² = a² + c²

b² = 3² + 5²

b² = 9 + 25

b² = 34

b = 5.83 feet

B) The plywood needs to be 5.83 feet long

C) Since the top of the ramp is 10 feet, let us assume the height of the ramp to be 6 feet, hence, the length of the ramp a is:

10² = a² + 6²

100 = a² + 36

a² = 64

a = 8 feet

8 0
3 years ago
9a + 18c. What is the value of the expression when a = −5 and c = −1?
saw5 [17]
1. plug in the numbers for the variables, like this: 9(-5)+18(-1)

2. solve
Hopefully this helps! Let me know if you need more explanation.
4 0
3 years ago
Pls help
Zolol [24]

Answer:

I got 55..and I also got 50.......

6 0
3 years ago
Pls need help fast ._.
yuradex [85]

Answer:

65.75% change

Step-by-step explanation:

Equation for percent change

(|x2-x1| / x1) * 100%

48 million / 73 million * 100% = 65.75% decrease

4 0
3 years ago
Read 2 more answers
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