2 years ago

Help 20 points added

Mathematics

2 answers:

Natalija [7]2 years ago

8 0

Answer:

fig 1st 2nd and last

not the third one

viva [34]2 years ago

4 0

Answer:

Step-by-step explanation:

in the picture

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Solve the following equation or inequality for the unknown variable. Round answer to two decimal places if necessary.

Sonbull [250]

Answer:

x = 2.7

Step-by-step explanation:

The given equation is :

$(3x)^2-10=56$

We need to solve it for x.

It can be rewrite as follows:

$9x^2-10=56$

Adding 10 to both sides,

$9x^2-10+10=56+10\\\\9x^2=66\\\\x=\sqrt{\dfrac{66}{9}}\\\\x=2.70$

So, the value of x is equal to 2.7.

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3 years ago

Find the measure of the interior angles.

Mrac [35]

Answer:

x=22

Step-by-step explanation:

4x+2+x+3x+2=180

collect like terms

4x+x+3x=180-(2+2)

8x=180-4

8x=176

make x the subject of the formula

x=176/8

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3 years ago

Read 2 more answers

Its the 1000 one anyone can help plzzzz

Over [174]

If you mean 1 and 7 over 100 then the answer is 1.07

4 0

4 years ago

What are the values of each variable

Ksenya-84 [330]

Answer:

Step-by-step explanation:

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3 years ago

A gerbil cage,priced at $18, is discounted 20% for one week, and then this price is marked up 20%. is the price back to 20% expl

stiks02 [169]

No, it isn't!

first, the discount is 20 percent of 18 dollars, that is 18/5=3.6

this means that during the first week the prize is 18-3.6=14.4

now, the prize is marked up 20 % of 14.4! this is 2.88

so the prize later will be 14.4+2.88, that is 17.28, not 18

what is relevant here is what a number is a percent OF

6 0

3 years ago