3 years ago

Plzzz Help!!!

Mathematics

1 answer:

Rashid [163]3 years ago

7 0

Answer:

The question is x^2 = 20, right? then

second option is the answer

You might be interested in

What is the answer? please

liubo4ka [24]

Answer:

2 $x^{2}$ -2 $x$ +3

Step-by-step explanation:

Take both polynomials out of parenthesis, then combine like terms.

5 $x^{2}$ -3 $x^{2}$ =2 $x^{2}$

6 $x$ -8 $x$ = $-2x$

$-7+10=3$

5 0

3 years ago

If the radius of mars is about 13.7% of neptune's radius, what is the radius of neptune?

Gnesinka [82]

You said that M is 13.7% of N

In algebraic notation M = 0.137 N

Divide each side by 0.137 : N = M / 0.137 = 7.3 M (rounded)

Online or in a real book, you can look up the radius of Mars.
Then write it in place of 'M' in this solution, and you'll have
an actual number for the radius of Neptune.

8 0

4 years ago

What is 62% of 25 ?<br> im horrible at this plz help

hodyreva [135]

62% of 25

'of' means multiplication.

$\sf 62\%\times 25$

Convert 62% to a decimal, divide it by 100(since percentages are parts of 100):

62/100 = 0.62

$\sf 0.62\times 25$

Multiply:

$\sf\boxed{\sf 15.5}$

4 0

4 years ago

Read 2 more answers

Jasmine’s race time was 34.287 minutes.round her race time to the nearest 10th of a minute

amm1812

Hi!

34.287 rounded to the nearest tenth is 34.290

This is because 7 is greater than 5, so we would round it to the cloest tenth that is slightly higher than 7. =)

7 0

3 years ago

Read 2 more answers

Find the residual if you know the actual number is 3 and the predicted value is 1.6

IgorC [24]

Answer:

The correct option is A.

Step-by-step explanation:

The difference between actual value and predicted value is called residual.

Formula of residual is

$e=y-\hat{y}$