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2 years ago

Drag the tiles to the correct boxes to complete the pairs, not all tiles will be used.

Mathematics

1 answer:

Ann [662]2 years ago

8 0

Answer:

I can't answer your question because I can't see what boxes your talking about

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Stacy is thinking of a number which she calls N. She triples it and adds 10

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Answer:

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Step-by-step explanation:

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3 years ago

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The advertising department of a nationally circulated magazine wishes to estimate the mean age of its subscribers within 0.5 yea

zhenek [66]

Answer: Option 'd' is correct.

Step-by-step explanation:

Since we have given that

Margin of error = 0.5 years

Standard deviation = 5

At 90% confidence, z = 1.645

We need to find the minimum size of the sample they must take.

So,

$n=(\dfrac{z\sigma}{E})^2\\\\n=(\dfrac{1.645\times 5}{0.5})^2\\\\n=270.6\\\\n\approx 271$

Hence, Option 'd' is correct.

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3 years ago

To get the 10% discount, a shopper must spend no less than $300.

Vladimir [108]

What are u trying answer

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3 years ago

-4(2+8)=(-4xN)= Show your answers

Elanso [62]

Answer:

n=10

Step-by-step explanation:

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3 years ago

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How do I simplify this (sinx)/(secx+1)

pochemuha

Answer:

Step-by-step explanation:

$\frac{sin~x}{sec~x+1} =\frac{sin~x}{\frac{1}{cos~x}+1 } =\frac{sin~x~cos~x}{1+cos~x} \\=\frac{sin~x~cos~x}{1+cos~x} \times \frac{1-cos~x}{1-cos~x} \\=\frac{sin~x~cos~x(1-cos~x)}{1-cos^2 x} \\=\frac{sin~x~cos~x(1-cos~x)}{sin^2x} \\=\frac{cos~x(1-cos~x)}{sin~x} \\=cos ~x(csc~x-cot~x)\\or\\=cot~x(1-cos~x)$

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3 years ago