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shusha [124]
3 years ago
13

What is the standard unit of measurement for mass?

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
4 0
The standard unit is the kilogram.
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Which of the following xpressions is equivalent to -1/4 - 5/3? -1/4 + (-5/3) or - 1/4 + 5/3?
Nadusha1986 [10]
-1/4 + (-5/3)

When there is no number between a grouping symbol and a + or - sign, by default you can multiply the contents in the group by 1 to get rid of the grouping symbols.
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3 years ago
ILL MARK BRAINILEST (100 POINTS) !!! Factor the polynomial 7xy + 14x − 35y − 70 completely. 7(2x − 5)(y + 2) 7(x − 5)(y + 2) 7(x
Vlad [161]

Answer:

<u>B. 7(x − 5)(y + 2)</u>

Explanation:

A. 7(2x − 5)(y + 2) = 14xy + 28x − 35y − 70 (Wrong)

<u><em>B. 7(x − 5)(y + 2) = 7xy + 14x − 35y − 70 (Correct)</em></u>

C. 7(x − 2)(y + 5) = 7xy <u>+</u> 35x− 14y − 70 (Wrong)

D.  7(x − 10)(y + 2) = 7xy + 14x − 70y − 140 (Wrong)

8 0
2 years ago
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What do we mean by the value of an expression?
Alexxx [7]

We have learned that, in in an algebraic expression, letters can stand for numbers. When we substitute a specific value for each variable, and then perform the operations, it's called evaluating the expression. Let's evaluate the expression 3y + 2y when 5 = y.

7 0
3 years ago
Y^2 +5y+4= ???????????????
joja [24]

Answer:

y²+5y+4=y²+4y+y+4=y(y+4)+1(y+4)=

<u>(y+4)(y+1)</u>

4 0
3 years ago
Simplify the expression<br><br> 3+2x(8-3)<br><br> A.25<br> B.37<br> C.13<br> D.16
skelet666 [1.2K]
C. 13

3+2x(8-3) 13
8-3=5
3 0
3 years ago
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