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Alona [7]
1 year ago
14

Use the interactive tool to find which of the following expressions have a sum of 6. Check all that apply.

Mathematics
1 answer:
aliina [53]1 year ago
3 0

The expressions that have a sum of 6 are Options C and D

<h3>How to determine the sum</h3>

In this case, we use the following rules

(-) + (-) = -

(+) + (+) = +

(+) + (-) = -

(-) + (+) = -

From the first case

8 + 2 = 10

(-4) + (-2) = -4 + -2 = -6

(-3) + 9 = -3 + 9 = 6

7 + (-1) = 7 - 1 = 6

Thus, the expressions that have a sum of 6 are Options C and D

Learn more about mathematical signs here:

brainly.com/question/25421984

#SPJ1

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Write an expression for the words - Divide 10 by 4 and then subtract 6.2
prohojiy [21]
(10/4) - 6.2 

10 divided by 4, do that first because it's in the parenthesis, then subtract 6.2 from it.
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Which expression is equivalent to n2 + 26n + 88 for all values of n?
Lelechka [254]

Answer:

Option B is correct.

The expression which is equivalent to  n^2+26n+88  is; (n+22)(n+4)

Explanation:

Given the equation: n^2+26n+88 for all values of n.

The quadratic equation in this form; ax^2+bx+c =0

First find two numbers that multiply to give ac and add to give b.

From the given equation;

a =1 , b = 26 and c =88

then,

the two number that multiply to give ac =88 is, 22 or 4

and they add up to give b=26 (i.e 22+4)

Now, rewrite the middle term i.e 26n with 22n and 4n , we have

n^2+22n+4n+88=0

Now, factor the first two terms and last two terms,

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we see that (n+22) is common to both terms so, we have;

(n+22)(n+4)

Therefore, the expression (n+22)(n+4) is equivalent to  n^2+26n+88

Check:

(n+4)(n+22) = n\cdot n+ 22n+4n+88=n^2+26n+88   [ True]



5 0
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Answer:

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Step-by-step explanation:

60 pounds all together is the weight of 6 boxes, so if you divide 60 by 6, you'll get 10 lbs for each box.

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During a science experiment, the temperature of the solution in beaker one was 5° below zero. The temperature of a solution in b
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<span>5° below zero is -5 degrees
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answer
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2 1/2 times (-3 3/4)
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Answer:

-9.375

Step-by-step explanation:

2 1/2 x (-3 3/4) = -9.375

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