4 years ago

Riley read 5x as many pages as Jessica, If tbey read a total of 2,838 pages how many pages did Riley read. EXPLAIN ALSO PLEASE

Mathematics

1 answer:

kykrilka [37]4 years ago

8 0

You multiply 2,838 by 5 because he read 5x more than Jessica. The total comes to 14,190. I hope this helps.

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And I also need help in this one.

Dvinal [7]

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3 years ago

(csc x - 1) (csc x + 1)

victus00 [196]

<h2>Explanation:</h2>

Here we have the following expression:

$(csc x - 1) (csc x + 1)$

So we need to extend this. Remember that the difference of squares tells us:

$(a-b)(a+b)=a^2-b^2$

So here:

$a=cscx \\ \\ b=1$

Thus:

$(csc x - 1) (csc x + 1)=csc^2x-1 \\ \\ \\ But: \\ \\ cscx=\frac{1}{sinx} \\ \\ \\ Then: \\ \\ csc^2x-1=\frac{1}{sin^2x}-1=\frac{1-sin^2x}{sin^2x}=\frac{cos^2x}{sin^2x}=cot^2x \\ \\ \\ Finally: \\ \\ \boxed{(csc x - 1) (csc x + 1)=cot^2x}$

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3 years ago

Five more than three times a number q is written as

wlad13 [49]

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6 0

4 years ago

Read 2 more answers

Explain why the exponents cannot be added in the product 12^3 and<br><br> 11^3

GrogVix [38]

Because bases are different.

a^n · a^m = a^(n+m)

4 0

3 years ago

Which table values could be generated by the equation 4y+2x=16

Neko [114]

Answer:

x=0, y=4

x=2, y=5

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x=6, y=7

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Step-by-step explanation:

3 0

3 years ago