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Nata [24]
3 years ago
15

In ΔABC, the measure of ∠C=90°, the measure of ∠A=64°, and AB = 2.7 feet. Find the length of BC to the nearest tenth of a foot.

Mathematics
2 answers:
harina [27]3 years ago
3 0

Answer:

Applying sine theorem for right triangle ABC, we have:

sin A = BC/AB

=> BC = AB x sin A = 2.7 x sin(64 deg) = ~2.4 (ft)

Hope this helps!

:)  

Vlada [557]3 years ago
3 0
BC=AB x sinA=2.7 x sin64'=2.4

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the oval track below is formed by a straight section on each side and a semicircle at each end. what is the approximate distance
nikklg [1K]

Answer:

1040

Step-by-step explanation:

Circumference of the Circle: 439.82

Add that to the length of the rectangle time two: 439.82+(300x2)

That will give you the perimeter around the entire track:

439.82+(300x2)

439.82+600

1039.82

Rounded that is: 1040

<em>Hope this Helps :)</em>

4 0
3 years ago
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The function f(x) varies inversely with x and f(x)=0.5 when x = 0.3. What is f(x) when x = 2.4? A)5.76 B)0.0625 C)0.30 D)0.15
goldfiish [28.3K]

Answer:

B) 0.0625

Step-by-step explanation:

f(x) = k / x

f(x)=0.5 when x = 0.3

f(x) = k / x

0.5 = k / 0.3

Cross product

0.5 * 0.3 = k

k = 0.15

What is f(x) when x = 2.4?

f(x) = k / x

f(x) = 0.15 / 2.4

f(x) = 0.0625

The answer is B) 0.0625

3 0
3 years ago
Write an equation of the line that passes through the given point, (1, 2).
Fiesta28 [93]

Answer:

Step-by-step explanation:

eq. of any line through (1,2) with slope m is

y-2=m(x-1)

if the line is parallel to x-axis then y=2

if the line is parallel to y-axis then x=1

7 0
3 years ago
A rectangular building with a square base is being designed to minimize heat loss. The building designers state that the volume
Arturiano [62]

Answer:

y = 4000/x²

Step-by-step explanation:

The volume of the building is expressed as;

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Substitute the given volume into the equation as shown;

4000 = x²y

Make y the subject of the formula by dividing both sides by x²

4000/x² = x²y/x²

4000/x² = y

Rearrange

y = 4000/x²

Hence equation for y, the height of the building, in terms of x, the length and width of the base is expressed as y = 4000/x²

8 0
3 years ago
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Anon25 [30]

Answer:

Realmente no lo se.

Step-by-step explanation:

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7 0
3 years ago
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