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Dafna1 [17]
3 years ago
10

What is a-7=21 it’s for class obviously

Mathematics
2 answers:
arlik [135]3 years ago
8 0

Answer:

28

Step-by-step explanation:

7+21=28

a-7=21

Keith_Richards [23]3 years ago
8 0

Answer: a=28

Step-by-step explanation:

You might be interested in
Quadrilateral LMNO can BEST be described as
mixas84 [53]

Answer:

E) quadrilateral

Step-by-step explanation:

Quadrilateral LMNO has 4 sides, but only two seem to parallel each other and that is why it is only a quadrilateral.

Requirements for each shape:

Square = 4 equal sides, 2 pairs of parallel ones, all right angles

Rectangle = 2 sets of equal and parallel sides, all right angles

Rhombus = 4 equal sides, 2 pairs of parallel ones

Parallelogram = 2 pairs of parallel sides

Quadrilateral = 4 sided polygon with 4 corners

Hope this helps!

4 0
2 years ago
What is the area of this circle? <br><br> The circle is 70 m
Anni [7]
The answer is 34<span> because all you do is go from the radius to the diameter.

</span>
3 0
3 years ago
582 x 7 its multiplying multi digit numbers by the way it's not getting graded.
Allisa [31]

The expression is

582 x 7

By using a calculator,

582 x 7 = 4074

3 0
1 year ago
Number 5 and I don't know how to do it at all
Andreyy89
Your givens are A+S=326 and 8A+5S=1972.

A+S=326
  -S      -S
A=326-S

if you substitute this into the other equation that you are given it looks like this
8(326-S)+5S=1972.
After this we use PEMDAS to solve for S
2608-8S+5S=1972
2608-3S=1972
-3S=(-636)
-S=(-212)
S=212
If we know S=212 we can go back and solve the origonal equation for A.
A+212=326
A=114
4 0
3 years ago
Find the key numbers of the expression. 4x^2 − x − 14
kow [346]
(X-2 )(4x+7)
X=2
Or
X=-7/4
6 0
3 years ago
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