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Aleksandr-060686 [28]
3 years ago
13

What is the value of the expression. -8-(-3) = -8 blank 3 = blank

Mathematics
1 answer:
Mashutka [201]3 years ago
6 0

Answer:

Step-by-step explanation:

-(-)=+

so  -8-(-3)=-8+3

=-5

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What is the surface are for this figure??
UkoKoshka [18]

Answer:

31.5

Step-by-step explanation:

You need to first use the formula of calculating surface area of a cuboid

SA=2(lw+lh+wh)

now you put the values in as

H=3

W=1.5

L=2.5

You get 31.5

Hope this Helps!

7 0
3 years ago
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Simplify: -3 1/2(-12 1/4)
pshichka [43]

Answer:

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Step-by-step explanation:

First we turn them into improper fractions

-\frac{7}{2}(-\frac{45}{4})

then we multiply it

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6 0
3 years ago
The numbers 81, 45,27 are multiplies of
malfutka [58]
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3 years ago
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Your friend says that the absolute value equation | 3x+8 |-9=-5 has no solution because the constant
sineoko [7]

Answer:

Incorrect

Step-by-step explanation:

We are given the equation:

\displaystyle \large{|3x+8|-9=-5}

Add both sides by 9.

\displaystyle \large{|3x+8|-9 + 9=-5 + 9} \\ \displaystyle \large{|3x+8|=4}

When we want to tell if the absolute equation has solutions or not, we have to simplify in this form first: or isolate the absolute sign.

\displaystyle \large{ |ax + b|  = c}

If c ≥ 0, the equation has solutions.

If c < 0, the equation does not have solutions.

Therefore, it does not always matter if the constant on right side is in negative because if there is a number on the left side then there is a chance that the equation has solutions.

From |3x+8| = 4 is equivalent |3x+8|-9=-5 and the right side is 4 which is positive.

Hence, the equation does have a solution!

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The answer would be $25
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