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3 years ago

Solving by Substitution y=-2+1 2x-2y=4

2 answers:

7 0

2x-2(-2+1)=4
Distribute the -2 to the numbers in parantheses.
2x+4-2=4
Combine all numbers
2x+2=4
Subtract 2 from both sides
2x=2
Then divide by two
x=1

Alina [70]3 years ago

3 0

X = 1
and....
y = -1 + y = 3
I hope this helps! :)

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What is 1,246,912 written in scientific notation

Tasya [4]

1.2 x 10^-6

You have to move the decimal so that your number is between 1 & 10. Then you write that number times 10 then add the exponent. Check on what makes it positive or negative

8 0

3 years ago

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88, 92, 76, 42, 88, 90, 100, 110, 115, 5, 88, 92, 95

salantis [7]

Answer:

Mean = 83.15

Median = 90

Mode = 88

Range = 110

Outlier = 5

Step-by-step explanation:

Mean - (88+92+76+42+88+90+100+110+115+5+88+92+95)/2 = 83.15

Median - 5, 42, 76, 88, 88, 88, 90, 92, 92, 95, 100, 110, 115 = 90

Mode - 88, 92, 76, 42, 88, 90, 100, 110, 115, 5, 88, 92, 95 = 88

Range - 115 - 5 = 110.

Outlier - 88, 92, 76, 42, 88, 90, 100, 110, 115, 5, 88, 92, 95 = 5

hope it helps :)

please mark brainliest!!! (took a lot effort!)

8 0

4 years ago

Read 2 more answers

Do you think that civilians should be targeted in warfare? Why or why not?

jasenka [17]

When countries are at war, the general rule is that civilians should not be targeted and I support this notion.

<h3>The Concept of War</h3>

War is fought by nations to assert dominance and achieve certain conditions.
War is fought by soldiers who pick of weapons to engage in war.

Civilians should therefore not be targeted because they have not picked up weapons to engage in the fight and so cannot be said to be targets. It makes no sense to leave the person you are fighting and who wants to fight you, to fight those who are not interested in fighting.

In conclusion, civilians should not be targeted.

Find out more on targeting civilians at brainly.com/question/261234.

6 0

2 years ago

What is the value of cos15

ivolga24 [154]

the value of cos 15 is √3+1/2√2

explanation

cos (45-30)

=cos45*cos30+sin45*sin30

=1/√2 * √3/2 + 1/√2 * 1/2

=√6/4 + √2/4

=√6 + √2/4

=√3+1/2√2

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4 years ago

Doss [256]

Sam needs 2 cups. Hope this helps, seems a little easy haha

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3 years ago