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lakkis [162]
4 years ago
7

A rectangle has a height of 3 and a width of 2x^2 + 3x-5 express the area of the entire rectangle

Mathematics
2 answers:
Digiron [165]4 years ago
7 0

Answer:

Step-by-step explanation:

Maurinko [17]4 years ago
4 0

The answer is 6x^2+9x-15

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Expand and combine like terms.<br> (4b^2+ 3) (4b^2- 3) =<br><br> 1<br> SEE ANSWER
krok68 [10]

Answer:

Step-by-step explanation:

(4b^2+3)(4b^2-3)

since it is the expanded form of formula a^2-b^2=(a+b)(a-b) we can write,

=(4b^2)^2-(3)^3

=16b^4-9

8 0
3 years ago
For the set C= {6,8}, determine n(C).
nasty-shy [4]

Step-by-step explanation:

Hey, there!!

C = {6,8}

n(C) means cardinality of set.

We define cardinality of set as the no. of elements present in set.

It contains 2 no. of elements.

so, its cardinality is n(C) is 2.

<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

3 0
4 years ago
I need help on #4 ASAP!!!!
kodGreya [7K]
Hi there. 

A triangle's interior angles must always add up to 180 degrees. Since we already have one measurement, 56, we can set up an equation to solve for the missing angles.

(2x + 4) + 56 + x= 180; solve for x.
Subtract 56 from both sides.
(2x + 4) + x = 124;
Combine like-terms (x).
3x + 4 = 124;
Subtract 4 from both sides.
3x = 120
Divide both sides by 3 to solve for x.
x = 40.

Now, we need to substitute x with 40 in each of our angles to determine their measurements.
2x + 4; x = 40.
2(40) + 4 = 80 + 4 = 84; 
One measurement is 84 degrees.

x = 40 is another measurement on its own.

Our measurements are:
56, 84, and 40.

Your corresponding answer choice is H.) 56, 84, 40.

I hope this helps!
7 0
3 years ago
A 6-pound bag of birdseeds cost $4.92. What is the unit price?
Sergeu [11.5K]
I think you would have to multiply $4.92 and 6... if so the answer would be $29.52 for the unit price.
7 0
3 years ago
All most done thanks for hanging in there
Ber [7]

Answer:

Angle CBE

Step-by-step explanation:

They share the same degree. Or are the same angle in a different place with a  different name.

7 0
3 years ago
Read 2 more answers
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