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Marizza181 [45]
2 years ago
6

Evaluating expressions

Mathematics
2 answers:
almond37 [142]2 years ago
8 0

Answer:

2 3/8 (2.375)

Step-by-step explanation:

You can substitute m with 1/4, giving you the equation 2(1/4^2) + 9(1/4). You can then solve for the answer.

How to solve:

2(1/4^2) + 9(1/4)

2(1/16) + 9/4

1/8 + 9/4

1/8 + 18/8

19/8

2 3/8 (2.375)

MrRa [10]2 years ago
5 0

Answer:

5/2

Step-by-step explanation:

by plugging in the values check pic

You might be interested in
-1 3/8 ÷ ( -1 4/7) =
vazorg [7]

Answer:

121/56 or 2.160714

Step-by-step explanation:

invert the second fraction and multiply the fractions then simplify

give brainliest please

3 0
2 years ago
Does somebody knows how to do this?
MrMuchimi

Answer:

Area of the triangle = 6x3/2=18/2=9cm²

now find semicircle then add

area of the semicircle= πr²/2=π6²/2=36π/2=18π

now add and you get

Area of the region = (18π+9)cm²

Step-by-step explanation:

5 0
2 years ago
Write a two-step equation involving division and addition that has a solution of x=25
zavuch27 [327]
If this is what you mean..?

In order to do this you would work backward from the answer.
You have x = 25 and ant to include and addition. As we are working backwards, we use the opposite operation to addition - subtraction. We'll make it an easy number so we will subtract 15 to get to 10.
So far it looks like 10 = 15 + x
Now, to include  a division, we want to do the opposite again, multiplication. Pick any number to multiply 10 by - for this example we'll choose 7.
7 x 10 = 70
Now we can write out the equation -
70/7 + 15 = x
No brackets are required as Division comes before addition in BIDMAS.


An alternate choice would be to have x the other side of the '='

To do this, multiply x by a number of choice (for example 3) to make the divison section of the equation. This makes 75. This can be written as a fraction. 75/x = 3
Next, for the addition, whatever happens on one side, the exact same happens on the other. Pick any number to add on (e.g. 5) and re-write the equation.
75/x + 5 = 8

Sorry if this doesn't make perfect sense
4 0
3 years ago
To determine a student’s grade, a teacher throws out the lowest grade obtained on 5 tests, averages the remaining grades, and ro
schepotkina [342]

Answer:

85

Step-by-step explanation:

add 4 values, excluding 72 (lowest grade)

total = 339

average = 330/4 = 84.75

84.75 rounding to nearest integer is 85

6 0
2 years ago
Which points are coplanar
Minchanka [31]

J I think it should be

6 0
3 years ago
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