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3 years ago

I no I have to multiply all three numbers but it’s hard to multiply them

Mathematics

2 answers:

svetoff [14.1K]3 years ago

8 0

Answer:

2931.56 in³

Step-by-step explanation:

As u already know..

Volume = w × l × h2

= 19⅞ × 14¾ × 10

dezoksy [38]3 years ago

8 0

Answer:

2931 9/16 $in^{3}$

Step-by-step explanation:

change them to decimals

19 7/8= 19.875

14 3/4= 14.75

10=10

V= lxwxh

V =19.875*14.75*10

V= 2931.5625

Now convert back to a mixed number

2931 5625/10000

Put answer in lowest terms

2931 5625/10000

Divide both sides by 625

2931 9/16 $in^{3}$

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3 years ago

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2 years ago

There are 5 times as many yellow labs as terriers in the dog park. if there are a total of 18 dogs, how many dogs are terriers?

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3 0

3 years ago

Read 2 more answers

Please help!!

yarga [219]

Because this is a fourth degree that will be tricky to factor as it is, we will do a u substitution. Let $x^2=u$ . We can now rewrite that polynomial in terms of u: $u^2-7u-8=0$ . Filling into the quadratic formula we have $u=\frac{7+/-\sqrt{49-4(1)(-8)}}{2}$ . Simplifying down $u=\frac{7+/-\sqrt{81}}{2}$ and $u=\frac{7+9}{2}$ or $u=\frac{7-9}{2}$ . That means that u = 8 or u = -1. But don't forget that we let $u=x^2$ , so we have to put x-squared back in for u. That gives us $x^2=8$ which simplifies down to $+/-2\sqrt{2}$ . That also gives us $x^2=-1$ . When we take the square root of -1, we have to use the fact that -1 = i^2, so we sub that in to get $x=+/-i$ . All in all, your solutions are as follows: $2\sqrt{2},-2\sqrt{2},i,-i$ which is choice b.

7 0

2 years ago