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3 years ago

Simplify

Mathematics

2 answers:

Volgvan3 years ago

8 0

First Answer : -3x + 4
Second Answer : -x + 2

I hope this helps !

Alika [10]3 years ago

4 0

Simplify 6 – 4x – 2 + x

Combine like terms:

6 - 2 = 4

-4x + x = -3x

-3x + 4, or (A) is your answer

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Simplify 5 – 2x – 3 + x

Combine like terms:

5 - 3 = 2

-2x + x = -x

-x + 2, or (B) is your answer

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hope this helps

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3 years ago

Someone tell me the anwser and i need to show my work too

Zinaida [17]

First you need to find how much 20% of $18.50 is. To do this, you need to multiply 18.50 by 20% which in decimal form is 0.2
$18.50x0.2=$3.70
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6 0

3 years ago

Read 2 more answers

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4 0

3 years ago

A right square pyramid with base edges of length $8\sqrt{2}$ units each and slant edges of length 10 units each is cut by a plan

seropon [69]

Answer:

32 $unit^{3}$

Step-by-step explanation:

Given:

The slant length 10 units
A right square pyramid with base edges of length 8 $\sqrt{2}$

Now we use Pythagoras to get the slant height in the middle of each triangle:

$\sqrt{10^{2 - (4\sqrt{2} ^{2} }) }$ = $\sqrt{100 - 32}$ = $\sqrt{68}$ units

One again, you can use Pythagoras again to get the perpendicular height of the entire pyramid.

$\sqrt{68-(4\sqrt{2} ^{2} )}$ = $\sqrt{68 - 32}$ = 6 units.

Because slant edges of length 10 units each is cut by a plane that is parallel to its base and 3 units above its base. So we have the other dementions of the small right square pyramid:

The height 3 units
A right square pyramid with base edges of length 4 $\sqrt{2}$

So the volume of it is:

V = 1/3 *3* 4 $\sqrt{2}$

= 32 $unit^{3}$

5 0

3 years ago