3 years ago

What is 648 divided by 4 in long division?

Mathematics

1 answer:

Rainbow [258]3 years ago

7 0

The answer is 162

I hope this help

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Find X. Round to the nearest tenth. Law of Cosines : c2 = 22 + b2 - 2ab cos C

fiasKO [112]

Answer:

70.5°

Step-by-step explanation:

22² = (20)²+(18)² - 2(20)(18) cos X

484 = 400 + 324 - 720 cos X

-240 = -720 cosx

1/3 = cos X

$cos^{-1}(\frac{1}{3})$ = X

X = 70.52877937

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3 years ago

Can you help ASAP!!!! WILL MARK U BRAINLIEST!

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Answer: i will give u the points

Step-by-step explanation- -7, 11 and 11, 2

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3 years ago

Given the equation a/b=c/d , what is the value of d. Show your solution

sasho [114]

D would equal a/b times c

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2 years ago

What scale factor was used when going from the grey triangle to the yellow triangle

sertanlavr [38]

Answer:

Scale factor of 1/3

Step-by-step explanation:

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3 years ago

Read 2 more answers

Can someone please explain how to do these?

Pani-rosa [81]

Answer:

First question answer: The limit is 69

Second question answer: The limit is 5

Step-by-step explanation:

For the first limit, plug in $x=8$ in the expression $(9x-3)$ , that's the answer for linear equations and limits.

So we have:

$9x-3\\9(8)-3\\72-3\\69$

The answer is 69

For the second limit, if we do same thing as the first, we will get division by 0. Also indeterminate form, 0 divided by 0. Thus we would think that the limit does not exist. But if we do some algebra, we can easily simplify it and thus plug in the value $x=1$ into the simplified expression to get the correct answer. Shown below:

$\frac{x^2+8x-9}{x^2-1}\\\frac{(x+9)(x-1)}{(x-1)(x+1)}\\\frac{x+9}{x+1}$

Now putting 1 in $x$ gives us the limit:

$\frac{x+9}{x+1}\\\frac{1+9}{1+1}=\frac{10}{2}=5$

So the answer is 5

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3 years ago