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Nimfa-mama [501]
3 years ago
15

Can you simplify -3(x+7)

Mathematics
2 answers:
vodomira [7]3 years ago
7 0

Answer:

=−3x−21

Step-by-step explanation:

−3(x+7)

=(−3)(x+7)

=(−3)(x)+(−3)(7)

=3x-21

egoroff_w [7]3 years ago
6 0

Answer:-3x-21

Step-by-step explanation: use the distributive property

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Simplify this expression 10b+7-3b-2
iren2701 [21]

Answer:

7b+5

Step-by-step explanation:

10b + 7 − 3b −2

=10b + 7 + −3b + −2

Combine Like Terms:

=10b + <u>7 </u>+ −3b + <u>−2 </u>

=(10b + −3b) + ( <u>7 </u>+ <u>−2</u>)

=7b + <u>5</u>

Answer:

7b + 5

Hope this helps : )

3 0
3 years ago
Read 2 more answers
A.Calculate the mean,median and mode.(3 points each) 1.)1,2,3,4,5 2.)2,3,4,5,6,6 3.)6,7,5,4,5,6,2,5
zlopas [31]

Answer:

Step-by-step explanation:

1.)1,2,3,4,5

mean=sum of all values/number of values

         =1+2+3+4+5/5

         =15/5

mean=3

Mode :

In the given data, no observation occurs more than once.

Hence the mode of the observations does not exist, means mode=0.

Median

1,2,3,4,5

Middle value is 3 so the median is 3.

2.)2,3,4,5,6,6

mean=sum of all values/number of values

         =2+3+4+5+6+6/6

         =26/6

mean =4.33

Mode

      is that value of the observation which occurs maximum number of times so here mode is 6.

Median

2,3,4,5,6,6

 4+5/2

9/2

median=4.5

3.)6,7,5,4,5,6,2,5

mean=sum of all values/number of values

         =6+7+5+4+5+6+2+5/8

        =40/8

mean =5

Mode

is that value of the observation which occurs maximum number of times so here mode is 5

Median

2,4,5,5,5,6,6,7

5+5/2

10/2

median=5

 

5 0
3 years ago
A 30-foot ladder is leaning against an office building. if the base of the ladder is
Lina20 [59]

Angle of elevation would be 66 degrees

4 0
2 years ago
You use 4 gallons of water on 30 plants in your garden at the rate how mush water will it take to water 45 plants
Lemur [1.5K]

Answer: 6 gallons

Step-by-step explanation:

4 gallons of water for 30 plants

turn into ratio

4:30  

simplify

2:15

multiply both sides by 3 to get 45 plants

6:45

6 gallons for 45 plants

7 0
3 years ago
Read 2 more answers
Which of the following functions best represents the graph?
cricket20 [7]

Answer:

f(x) = (x + 3)(x − 3)(x − 1)

Step-by-step explanation:

The roots are at -3, -1 and 3 therefore the 3rd option is correct.

4 0
3 years ago
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