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Misha Larkins [42]
3 years ago
14

A concrete stepping-stone measures 20 square inches. What is the area of 30 such stones?

Mathematics
1 answer:
nasty-shy [4]3 years ago
8 0
Just multiply 20 x 30 and you get 600 and that is your answer :3<span />
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the captain of a boat knows that the lighthouse on the coast is 200 feet tall. he measures the angle of elevation to the top of
krek1111 [17]

Answer:

The boat is 5727.25ft far from the coast

Step-by-step explanation:

Refer the figure given.

We need to find how far is the boat from the coast = AB

Angle of elevation = 2°

The lighthouse on the coast is 200 feet tall, AC = 200 ft

We have

           tan2=\frac{AC}{AB}=\frac{200}{AB}\\\\AB=\frac{200}{tan2}=5727.25ft

The boat is 5727.25ft far from the coast

7 0
3 years ago
Given: ΔABC; b= 10; c = 14, and ∠A = 54°. Find the length of side a to the nearest whole number.
algol13
We can solve for the length of side a to the nearest whole number using the Laws of Cosines such as the formula is shown below:
a²=b²+c²-2bcCosA
Solving for the value of a, we have:
a²=10²+14²-2(10)(14)cos54°
a²=131.42
a=11.46
The answer is 11.46 or 11.5.
8 0
3 years ago
What value of t satisfies the equation t/8-3/4=9/16
Y_Kistochka [10]
The answer to t is t= 21/2
5 0
3 years ago
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Expand &amp; simplify: (x + 1)(x + 3)
Sindrei [870]

Answer:

368

Step-by-step explanation:

5 0
3 years ago
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What's the answer? Serious answers only please, :/.
mr Goodwill [35]

Answer:

2.5 cm

Step-by-step explanation:

Rectangle A    L x W = 40

                   

Rectangle B     L * W   = 1/2 (40)

                        8 * W = 20

                              W = 2.5 cm

5 0
2 years ago
Read 2 more answers
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