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4 years ago

What expression represents a factorization of 28a + 40ab

Mathematics

1 answer:

natta225 [31]4 years ago

5 0

The factored form is 4a(7 + 10b)

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NEED HELP ASAP!!!!!

Nitella [24]

Answer:

If you have a perpendicular shape, like a plus sign, usually what I was taught, right whole side of the "plus" sign are negative. The left side is positive. I think it's how you say it.

Step-by-step explanation:

7 0

3 years ago

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In the diagram AB is parallel to CD. What is the term for the line that intersects the two parallel lines?

icang [17]

A transversal line is the term for a line that intersects two parallel lines.

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3 years ago

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Elements of {1,2,3,4,6,12} and {4,6,8,10}

Basile [38]

Step-by-step explanation:

A ={1,2,3,4,6,12}

B={4,6,8,10

$A \cup B=$ {1,2,3,4,6,8,10,12}

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3 years ago

What is f(–3) for the function f(a) = –2a2 – 5a + 4?

lyudmila [28]

f(a) = –2a2 – 5a + 4

f(–3)

Replace a with -3:

-2(-3)^2 -5(-3) +4=

-2(9) +15 +4 =

-18 + 19 = 1

5 0

4 years ago

The sum of the interior angles, s, in an n-sided polygon can be determined using the formula s = 180(n – 2), where n is the numb

disa [49]

Answer:

Equivalent equation of $s =180(n-2)$ is $n =\frac{s}{180}+2$

And the number of sides does a polygon have is, n =9.

Step-by-step explanation:

Given:

The sum of the interior angles, 's' in a n-sided polygon can be determined

using the formula is: $s =180(n-2)$ .....[1]

where n is the number of sides.

We can write the equivalent equation of [1]

$s = 180(n-2)$

Divide both sides by 180;

$\frac{s}{180} =\frac{180(n-2)}{180}$

Simplify:

$\frac{s}{180}=n-2$

Add 2 to both sides of an equation:

$\frac{s}{180}+2=n-2+2$

Simplify, we get;

$n =\frac{s}{180}+2$ ......[2]

Now, to find the value of n ;

Given: s =1260°

Substitute this value in [2] we get;

$n =\frac{1260}{180}+2$

n = 7+2 =9

Therefore, the number of sides in a polygon is, n=9

6 0

3 years ago

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