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3 years ago

Plzzz helpp find the length of arc AD. use 3.14 for pi. round to the nearest tenth

Mathematics

1 answer:

solniwko [45]3 years ago

6 0

Answer:

15.7 cm

Step-by-step explanation:

Angle AD = 180°- 66.4°= 113.6° (considering 2x90°=180° on opposite side)

P= 2*3.14*7.9=49.6 cm

Arc AD= 49.6*113.6°/360°= 15.7 cm

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Step-by-step explanation:

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2 years ago

Solve to find X. 1/5(x - 2) = 1/10 (x + 6)

LenaWriter [7]

Answer:

x = 10

Step-by-step explanation:

First, distribute:

$\frac{1}{5} x - \frac{2}{5} =\frac{1}{10} x+\frac{6}{10}$

Next, subtract $\frac{1}{5}x$ from both sides:

$-\frac{2}{5} = \frac{1}{10} x -\frac{1}{5} x+\frac{6}{10}$

(multiply $\frac{1}{5}x$ by 2 to get common denominator, $\frac{2}{10} x$ )

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Next, subtract $\frac{6}{10}$ from both sides:

$-\frac{2}{5} -\frac{6}{10} =-\frac{1}{10} x$

(multiply $\frac{2}{5}$ by 2 to get common denominator, $\frac{4}{10}$ )

$-\frac{10}{10} =-\frac{1}{10} x$ ⇒ $-1=-\frac{1}{10} x$

Next, multiply both sides by 10:

$-10=-x$

FInally, divide both sides by -1:

x = 10

3 0

2 years ago

Read 2 more answers

Find the distance between the points R(0,1) and S(6,3.5)

Genrish500 [490]

Answer:

Step-by-step explanation:

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d=(3)2+(5.5)2

=9+30.25‾‾‾‾‾‾‾‾‾√

d=9+30.25

=3‾√9.25

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2 years ago

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2 years ago

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statuscvo [17]

Answer:

10 is the answer

Step-by-step explanation:

You have to multiply with whats inside the roots. you would have $\sqrt{5} times \sqrt{20} will give you \sqrt{100} which is 10$

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2 years ago