Please help if right I will give BRAINLIEST and 25 points

Mathematics

1 answer:

Allushta [10]2 years ago

5 0

The total area is 448 in^2. Each triangle is 56 in^2 and each parallelogram is 140 in^2

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What is 3/4 of 16/21? worked out please

timofeeve [1]

Of means multiplication

So

$\frac{3}{4} \sf{of} \frac{16}{21} = \frac{3}{4} \times \frac{16}{21}$

And then simplify the numerator ad denominator

= $\frac{3 \times 16}{4 \times 21} = \frac{\ 1 \times 16}{4 \times 7}$

And simplify the numerator and denominator again

= $\frac{\ 1 \times 16}{4 \times 7} = \frac{\ 1 \times 4}{1 \times 7}$

And we are finally left with the answer which is $\frac{4}{7}$

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3 years ago

In a direct variation equation, f(x)=6 when x = 4. What is the direct variation equation?

jeyben [28]

Answer:

$f(x) = \dfrac{3}{2}x$

Step-by-step explanation:

The general direct variation equation is

y = kx

Plug in x = 4 and y = 6 and solve for k.

6 = k * 4

4k = 6

k = 6/4 = 3/2

$f(x) = \dfrac{3}{2}x$

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3 years ago

Tina thinks of two numbers. She says, "My two numbers add up to 12. Three times my first number plus twice my second number is 2

butalik [34]

The first number is 5 and the second number is 7

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2 years ago

Paul wants to compare whether the prices of tangerines in two supermarkets differ significantly. He has been noting down the dai

masha68 [24]

We use the simple rules of statistics to accept the null hypothesis
68% of the data falls within 1 sd of the mean95% of the data falls within 2 sd of the mean 99% of the data falls within 3 sd of the mean
20 falls between the range of -56 to 56 (from the given 95% c.i.), hence we accept the null hypothesis; else, if the mean falls outside the range, we reject the null hypothesis.

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2 years ago

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Help I don’t understand

OverLord2011 [107]

Rotation about a point does not change any dimensions. C'D' = CD = 2.8 units.

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3 years ago