3 years ago

Determine whether these two ratios form a proportion: 8/10 and 24/30

Mathematics

1 answer:

galina1969 [7]3 years ago

4 0

Hi there Moon,

The proportion you’re looking for would be 2/5, it is the smallest possible fraction

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On the first day of the baseball tournament, Jessie scored 2 runs. On the second day, 4 runs. On the third day, 6 runs. If this

Ivanshal [37]

It is going by two. So the answer is 16.

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4 years ago

Use the power reducing formula to rewrite the expression in therms of first powers of hte cosines of ultiple angles 3cos^4x.

Oxana [17]

The particular identity you want to use is

$\cos^2x=\dfrac{1+\cos(2x)}2$

Then

$3\cos^4x=3(\cos^2x)^2=3\left(\dfrac{1+\cos(2x)}2\right)^2=\dfrac34(1+\cos(2x))^2$

Expand the binomial to get

$3\cos^4x=\dfrac34\left(1+2\cos(2x)+\cos^2(2x)\right)$

Use the identity again to write

$\cos^2(2x)=\dfrac{1+\cos(4x)}2$

and so

$3\cos^4x=\dfrac34\left(1+2\cos(2x)+\dfrac{1+\cos(4x)}2\right)$

$3\cos^4x=\dfrac38\left(3+4\cos(2x)+\cos(4x)\right)$

7 0

3 years ago

A scientist wants to measure out 0.62 liters of a liquid, but she can only find a beaker that measures volume in centiliters. Ho

gayaneshka [121]

From what I got, you will need 62 <span>centiliters.</span>

3 0

3 years ago

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Need help with question

son4ous [18]

Answer:

2nd option is correct

Step-by-step explanation:

this would be using the ASA congruence theorem.

6 0

2 years ago

Please answer asap this person made a mistake what is the error and correct solution to this problem

stiv31 [10]

Answer:

Step-by-step explanation:

Hello, please consider the following.

$(4+x)^2=4^2+2\cdot 4\cdot x+x^2=16+\boxed{8}x+x^2\\\\\text{ ... and not ...}\\\\16+\boxed{4}x+x^2$

So the correct equation becomes.

$x^2+64=16+8x+x^2\\\\8x=64-16=48\\\\\text{ we divide by 8 both sides of the equation.}\\\\x=\dfrac{45}{8}=6$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

6 0

3 years ago

Read 2 more answers