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xz_007 [3.2K]
3 years ago
8

I need help with this it is properties of multiplication and addition

Mathematics
1 answer:
Marat540 [252]3 years ago
3 0

Answer:

Commutative Property

Step-by-step explanation:

Commutative Property states that order doesn't matter for addition.

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On Saturday, Conner drives 62 1/4 miles each hour. If he travels for 4 hours, how many miles does he travel altogether? please h
Taya2010 [7]
You would multiply 62 1/4 and 4. Which you cant do that so you would have to make it into a inproper fraction so that will be 249/4 times 4/1 then you can multiply which your answer would be 996 /4 and then in simplest form would be 249/1= 249
8 0
3 years ago
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100 points!! Brainliest if correct!!
Elena-2011 [213]

surface area (S) of a right rectangular solid is:

S = 2*L*W + 2*L*H + 2*W*H (equation 1)

where:

L = length

W = width

H = height

-----

you have:

L = 7

W = a

H = 4

-----

formula becomes:

S = 2*7*a + 2*7*4 + 2*a*4

simplify:

S = 14*a + 56 + 8*a

combine like terms:

S = 22*a + 56

-----

answer is:

S = 22*a + 56 (equation 2)

-----

to prove, substitute any value for a in equation 2:

let a = 15

S = 22*a + 56 (equation 2)

S = 22*15 + 56

S = 330 + 56

S = 386

-----

since a = 15, then W = 15 because W = a

go back to equation 1 and substitute 15 for W:

S = 2*L*W + 2*L*H + 2*W*H (equation 1)

where:

L = length

W = width

H = height

-----

you have:

L = 7

W = 15

H = 4

-----

equation 1 becomes:

S = 2*7*15 + 2*7*4 + 2*15*4

perform indicated operations:

S = 210 + 56 + 120

S = 386

-----

surface area is the same using both equations so:

equations are good.

formula for surface area of right rectangle in terms of a is:

S = 22*a + 56

-----

8 0
3 years ago
Read 2 more answers
It was recommended that students drink 48 or more ounces of water. How
azamat

A histogram is used to show the frequency of data, where the length of the bar represents the frequency.

<em>50 students drank the recommended amount of water.</em>

The recommended amount is given as:

Amount \ge 48

See attachment for histogram.

From the histogram, we have the following observations

  • <em>The lengths of all bars of the histogram are less than 48, except one.</em>
  • <em>The length of the bar above 48 is 50.</em>

<em />

This means that:  50 students drank the recommended amount of water.

<em>Hence, the number of students is 50</em>

Read more about histograms at

brainly.com/question/24577156

8 0
3 years ago
please help i need to get out of recovery mode so i can do 20 other assignments including a final exam
dusya [7]

Answer:

3

Step-by-step explanation:

y = -3x^2 + 5x <u>+ 3 </u>

                          ↑ this is "the number at the end/constant," and according to the question the number at the end/constant is the y-intercept

Thus, the y-intercept is 3.

4 0
3 years ago
What is the greatest factor of -2x?
Sveta_85 [38]

Answer:

this is prime

Step-by-step explanation:

3 0
3 years ago
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