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kow [346]
3 years ago
14

I need help with this question.

Mathematics
1 answer:
dmitriy555 [2]3 years ago
4 0
-56z+28? 56+28= 84 so your answer is d
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Which of these statements is true? A. The interior angles of both a regular and irregular pentagon have a sum of 540o. B. The in
Varvara68 [4.7K]

Answer:

 Option A is the correct answer.

Step-by-step explanation:

 The sum of interior angles of a polygon is given by (n-2) x 180°, where n is the number of sides.

 The sum of interior angles will not affect irregularity of polygon, it is same for regular and irregular polygon.

 For a pentagon n =5.

 Sum of interior angles = (5-2) x 180 = 3 x 180 = 540°

  Option A is the correct answer.

5 0
3 years ago
Simplify (6x2 − 3 − 5x3) − (4x3 2x2 − 8). 9x3 − 4x2 − 5 −9x3 4x2 5 x3 − x2 − 13x3 −x3 x2 13x3.
Schach [20]

Like terms have the same variable and power. The simplification of the expression (6x²-3-5x³)-(4x³+2x²-8) is -9x³+4x²+5.

<h3>What are Like terms?</h3>

Like terms are those terms that are having the same variables, also the variables are of the same order as well.

for example, 25x and 5x are like terms; 30xy and 7xy are like terms, 9x³ and 4x² are not like terms, etc.

We know that to simplify an expression we need to add or subtract like terms, therefore,

(6x^2- 3 - 5x^3) -(4x^3+2x^2 - 8)\\\\= 6x^2- 3 - 5x^3 -4x^3-2x^2 + 8\\\\= - 5x^3 -4x^3+6x^2-2x^2+8-3\\\\ = -9x^3+4x^2+5

Hence, the simplification of the expression (6x²-3-5x³)-(4x³+2x²-8) is -9x³+4x²+5.

Learn more about Like Terms:

brainly.com/question/2513478

7 0
2 years ago
How do you make an array of 5/6 x 3/4 ?
oee [108]
Well 5/6 x 3/4 is 15/24 so you’d do 24 dots across in 15 rows
7 0
3 years ago
Write the sum as a product simple simplify the product (-2)+(-2)+(-2)+(-2)
iren [92.7K]
(-2)+(-2)+(-2)+(-2)
=-2-2-2-2
= -8
3 0
3 years ago
Mr. Lewis’s paycheck is $506.14. After he spends $48.69 of the money on groceries, how much will he have left?
meriva

Answer:

$457.45

Step-by-step explanation:

$506.14 - $48.69 = $457.45

Hope this helps!

7 0
3 years ago
Read 2 more answers
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