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3 years ago

Trigonometry

Mathematics

1 answer:

Mazyrski [523]3 years ago

3 0

Answer:

0.3491rad

Step-by-step explanation:

We are asked to convert 20° to radians.

#We know that 1° is equal to π/180 or 0.01745rad.

To convert any angle degrees to radians, we multiply it by π/180:

$=20\times\pi/180\\\\=0.3491 \ or \ \frac{\pi}{9}rad$

Hence, 20° converted to radians is 0.3491rad

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Evgesh-ka [11]

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ANSWER: she worked 11 hours at the fast food restaurant and 5 hours helping her aunt

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kolbaska11 [484]

Answer:

22. Perimeter = 52 units

Area = 160 Square Units

23. Notation form : $2 \times 10^{5}$

Standard Form : 200000

Step-by-step explanation:

22.

The formula for perimeter is

P = 2 (length + Width )

= 2 ( 2x+3x+1)

= 2(5x+1)

The Formula for Area of a rectangle is

A= length x width

A= $2x \times (3x+1)$

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23.

A. By using rule of exponents , we can determine that both the results will be same.

Miriam's calculation

$\frac{2.8 \times 10^{9}}{1.4 \times 10^{4}}$

$\frac{2.8}{1.4} \times 10^{9-4}$

$2 \times 10^5$

Priya's calculation

$\frac{2.8 \times 10^{2}}{1.4 \times 10^{-3}}$

$\frac{2.8}{1.4} \times 10^{2-(-3)}$

$2 \times 10^5$

Standard notation

$2 \times 10^5 = 200000$

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