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horsena [70]
3 years ago
15

Please help me out.....

Mathematics
1 answer:
N76 [4]3 years ago
5 0

Answer:

a = 4\sqrt{3}

Step-by-step explanation:

Since the triangle is right use the tangent ratio to find a, that is

tan30° = \frac{opposite}{adjacent} = \frac{a}{12}

Multiply both sides by 12

12 × tan30° = a

12 × \frac{1}{\sqrt{3} } = a

Rationalise the denominator on the left side by multiplying the numerator/ denominator by \sqrt{3}

12 × \frac{\sqrt{3} }{3} = a ( cancel the 12 and 3 )

a = 4\sqrt{3}

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D) Twelve percent of the price of a bike is $64.8. What is the price of a bike?
wel

Answer:

12% of the price of a bike is $64.8.

100% of the price of a bike is a.

We have 64.8/a = 12/100

=> a = 64.8  x 100/12 = 540$

=> Price of the bike: 540$

Hope this helps!

:)

5 0
4 years ago
Volume=<br> A) 91 2/3 pie cubic units <br> B) 275 pie cubic units <br> C) 36 2/3 pie cubic units
MrMuchimi

the volume is 1/3 * height *area of the base (the circle) in cubic units

the area of the circle is pi*r²

wich gives us

1/3 * 11 * pi * 5²

rearrange

= 5² * 11 * 1/3 * pi

= 25*11*1/3*pi

= 275*1/3*pi

= 275/3 *pi

= (91 2/3)*pi

in cubic units

so your answer is the first option

6 0
3 years ago
Find the area of the composite figure!
Yuki888 [10]

Answer:

B

Step-by-step explanation:

8 times 8 = 64

17 times 8 = 136

64 + 136 = 200

4 0
3 years ago
Can you answer these two questions
Sergio039 [100]

1.  62 and (4x+2) are alternating interior angles and they are equal

so

62 = 4x+2    now solve for x


2.  vertical angles are straight across from each other

1 and 4

2 and 3

5 and 8

7 and 6

Alternate interior : alternate (or cross) the Transversal and are interior (inside) and are equal

4 and 5,  3 and 6

Corresponding are the angles in matching corners

1 and 5, 2 and 6, 3 and 7, 4 and 8

Alternate exterior : alternate (or cross) the Transversal and are exterior (outside)

2 and 7, 1 and 8,

3 0
3 years ago
Giving brainleist. what is 9 + 10
iren2701 [21]
21 because 9+10 is actually 21
7 0
4 years ago
Read 2 more answers
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