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2 years ago

I am having some issues with absolute value. Can someone help me understand it please?

2 answers:

7 0

Absolute value just man's the distance it is away from zero. |8| is 8 because it is 8 numbers away from 0.|-8| is also 8 for the same reason.

Yakvenalex [24]2 years ago

4 0

That's so easy that you won't believe it !

The absolute value of a number is just the size of it, ignoring whether it's
a positive or negative number.

Negative numbers go down. Positive numbers go up. Absolute value is
just how far the number goes, regardless of which direction.

Absolute value is how much money passed between you and the bank,
regardless of whether you put it in or took it out.

Absolute value is how much the airplane's altitude changed, regardless of
whether it climbed or descended. It's the length of your trip in the elevator,
regardless of whether you were going up or down.

The absolute values of +492 and -492 are the same.
Both numbers are 492 big.

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If r is the radius of a circle and d is its diameter which of the following is an equivalent formula for the circumference c = 2

Ratling [72]

Answer:

Step-by-step explanation:

C=2pier or pied

8 0

3 years ago

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If 180° < α < 270°, cos⁡ α = −817, 270° < β < 360°, and sin⁡ β = −45, what is cos⁡ (α + β)?

eduard

Answer:

$cos(\alpha+\beta)=-\frac{84}{85}$

Step-by-step explanation:

we know that

$cos(\alpha+\beta)=cos(\alpha)*cos(\beta)-sin(\alpha)*sin(\beta)$

Remember the identity

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

step 1

Find the value of $sin(\alpha)$

we have that

The angle alpha lie on the III Quadrant

The values of sine and cosine are negative

$cos(\alpha)=-\frac{8}{17}$

Find the value of sine

$cos^{2} (\alpha)+sin^2(\alpha)=1$

substitute

$(-\frac{8}{17})^{2}+sin^2(\alpha)=1$

$sin^2(\alpha)=1-\frac{64}{289}$

$sin^2(\alpha)=\frac{225}{289}$

$sin(\alpha)=-\frac{15}{17}$

step 2

Find the value of $cos(\beta)$

we have that

The angle beta lie on the IV Quadrant

The value of the cosine is positive and the value of the sine is negative

$sin(\beta)=-\frac{4}{5}$

Find the value of cosine

$cos^{2} (\beta)+sin^2(\beta)=1$

substitute

$(-\frac{4}{5})^{2}+cos^2(\beta)=1$

$cos^2(\beta)=1-\frac{16}{25}$

$cos^2(\beta)=\frac{9}{25}$

$cos(\beta)=\frac{3}{5}$

step 3

Find cos⁡ (α + β)

$cos(\alpha+\beta)=cos(\alpha)*cos(\beta)-sin(\alpha)*sin(\beta)$

we have

$cos(\alpha)=-\frac{8}{17}$

$sin(\alpha)=-\frac{15}{17}$

$sin(\beta)=-\frac{4}{5}$

$cos(\beta)=\frac{3}{5}$

substitute

$cos(\alpha+\beta)=-\frac{8}{17}*\frac{3}{5}-(-\frac{15}{17})*(-\frac{4}{5})$

$cos(\alpha+\beta)=-\frac{24}{85}-\frac{60}{85}$

$cos(\alpha+\beta)=-\frac{84}{85}$

4 0

3 years ago

How many times would Thor jump in 2 hours if he jumped 3 times every 5 minutes?

Scilla [17]

Answer:

Step-by-step explanation:

7 0

3 years ago

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What is the value of 8(15-4)/4^2-5

kolbaska11 [484]

Answer: 0.5

Step-by-step explanation:

Android calculator accepts the above question via copy and paste, and gives 0.5

The point of this question is to try to discover whether or not you know what the expression means.

Rewriting it as (8(15-4)/(4×4)) - 5 would show that you know the meaning. You can check that by feeding it into the calculator as well.

4 0

2 years ago

Can someone help me? Files attached! <br> What answer choices go to what figure? :D

den301095 [7]

Since the center is considered the corner that they both share, here are the answers figure a goes with the first, figure b goes with the last, figure c goes with the second, and figure d goes with the third. Hope this helps.

3 0

3 years ago