2 years ago

Can you help me explain

Mathematics

1 answer:

Tatiana [17]2 years ago

3 0

Answer:

6, 60, 0.6, 600 are the answers

the questions all use the same digits but that the powers of 10 are different between the dividends and divisors for some

Step-by-step explanation:

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2 years ago

I don't understand linear functions, thanks!

ANEK [815]

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3 years ago

Help me on calculating the area of the shaded part

Ymorist [56]

Answer:

$1051 .55 {mm}^{2}$

Step-by-step explanation:

Find the area of the square - area of 4 sectors

We'll use the formula to find one sector area

$a = \frac{1}{2} \times {r}^{2} \times x$

where r is the radius of one sector and x is the angle in radians

Since each angle is in a square, the angle of the sectors is 90 degrees.

Convert degrees to radians

$90 = \frac{1}{2} \pi \: rad$

The radius of one sector is given by 70mm/2=35mm

One sector area:

$\frac{1}{2} \times {35}^{2} \times \frac{1}{2} \pi = 306.25\pi$

Area of all 4 sectors:

$4 \times 306.25\pi = 1225\pi$

Area of the square:

$70 \times 70 = 4900$

Hence, Area of square - 4 Sectors:

$4900 - 1225\pi = 1051.55 {mm}^{2} (2dp)$

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2 years ago

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B. -28 < -19 < 2 < 12

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Answer:

Step-by-step explanation:

The correct answer is A because 60 dollars is the flat rate and it is not being multiplied consistently.

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3 years ago

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