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Rzqust [24]
2 years ago
11

Find the value of z. PLEASE HELP ASAP! A. 25.25 B. 51 C. 129 D. 76.25

Mathematics
1 answer:
kirza4 [7]2 years ago
3 0

Use Picture Math, i cant type in the other cause brainly doesn't accept it but it is Ga_thMath. (u)

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the lengths of 2 sides of a triangle are shown. side 1: 3x2 - 4x - 1. side 2: 4x - x2 + 5. the perimeter is 5x3 - 2x2 + 3x - 8
BigorU [14]

Answer:

A. 2x^2+4

B. 5x^3 - 4x^2 + 3x - 12

C. Yes

Step-by-step explanation:

Given:

Side 1=3x^2-4x-1

Side 2=4x-x^2+5

Perimeter=5x^3-2x^2+3x-8

Perimeter=side 1 + Side 2 + Side 3

A. Total lenght of the two sides

Side 1 + Side 2=(3x^2-4x-1) + (4x-x^2+5)

=3x^2 - 4x - 1 + 4x - x^2 + 5

=3x^2 - x^2 - 4x + 4x - 1 + 5

=2x^2+4

B. Length of the third side

Perimeter=side 1 + Side 2 + Side 3

Recall,

Side 1 + side 2=2x^2+4

Perimeter= (side 1 + Side 2) + Side 3

5x^3-2x^2+3x-8 = 2x^2+4 + side 3

5x^3-2x^2+3x-8 - (2x^2+4) = side

3

5x^3 - 2x^2 + 3x - 8 - 2x^2 - 4 = Side 3

5x^3 - 2x^2 - 2x^2 + 3x - 8 - 4 = Side 3

=5x^3-4x^2+3x-12

Side 3= 5x^3 - 4x^2 + 3x - 12

C. Yes, addition and subtraction of polynomial of the same degree will give result of the same degree or lower degree

6 0
3 years ago
If the triangle's sides are a base that is 4 inches, a height that is 3 inches, and the other side that is 5 inches, what is the
Maksim231197 [3]

Answer:

6 in ^2

Step-by-step explanation:

divide side lengths by two and add those numbers

6 0
3 years ago
How do I solve number five and what is the answer?
Gre4nikov [31]

Answer:C

Step-by-step explanation:

You convert 17.5 to a decimal that is 0.175 and 0.175 as a fraction is 7/40

3 0
2 years ago
Read 2 more answers
Use the graph below to answer the following question.
Elis [28]
The slope is -2 so C
7 0
2 years ago
A beginner artist kit costs $6.35 and contains 2 brushes and 5 jars of paint. The standard kit has 4 brushes and 12 jars of pain
xxMikexx [17]
2b + 5j = 6.35.....multiply by -2
4b + 12j = 13.20
----------------------
-4b - 10j = - 12.70 (result of multiplying by -2)
4b + 12j = 13.20
----------------------add
2j = 0.50
j = 0.50/2
j = 0.25 <==== jars

2b + 5j = 6.35
2b + 5(0.25) = 6.35
2b + 1.25 = 6.35
2b = 6.35 - 1.25
2b = 5.10
b = 5.10/2
b = 2.55 <=== brushes

so 1 brush (b) = 2.55 and 1 jar (j) = 0.25...total, if needed, = 2.80
6 0
3 years ago
Read 2 more answers
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