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aliya0001 [1]
3 years ago
12

A triangle has side lengths of 5a+3 5 a + 3 inches and 2a+3 2 a + 3 inches. If the perimeter of the triangle is 9a+12 9 a + 12 i

nches, which expression represents the lengths, in inches, of the third side of the triangle?
Mathematics
1 answer:
Marina CMI [18]3 years ago
3 0

Answer:

The answer to your question is:   side 3 = 2a + 6

Step-by-step explanation:

Data

Triangle

side 1 = 5a + 3 inches

side 2 = 2a + 3 inches

side 3 = ?

Perimeter = 9a + 12

Process

               Perimeter = side 1 + side 2 + side 3

             

              9a + 12 = (5a + 3) + (2a + 3) + side 3

              side 3 = 9a + 12 - 5a - 3 - 2a - 3

              side 3 = 2a + 6

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Given that Relationship B has a lesser rate than Relationship A and that the graph representing Relationship A is a f<span><span>irst-quadrant graph showing a ray from the origin through the points (2, 3) and (4, 6) where the horizontal axis label is Time in weeks and the vertical axis label is Plant growth in inches.</span>

The rate of relationship A is given by the slope of the graph as follows:

slope= \frac{6-3}{4-2} = \frac{3}{2} =1.5

To obtain which table could represent Relationship B, we check the slopes of the tables and see which has a lesser slope.

For table A.
Time (weeks) 3 6 8 10
Plant growth (in.) 2.25 4.5 6 7.5

slope= \frac{4.5-2.25}{6-3} = \frac{2.25}{3} =0.75

For table B.
Time (weeks) 3 6 8 10
Plant growth (in.) 4.8 9.6 12.8 16

</span><span><span>slope= \frac{9.6-4.8}{6-3} = \frac{4.8}{3} =1.6

</span> For tabe C.
Time (weeks) 3 4 6 9
Plant growth (in.) 5.4 7.2 10.8 16.2

</span><span>slope= \frac{7.2-5.4}{4-3} = \frac{1.8}{1} =1.8

For table D.
Time (weeks) 3 4 6 9
Plant growth (in.) 6.3 8.4 12.6 18.9</span>

<span>slope= \frac{8.4-6.3}{4-3} = \frac{2.1}{1} =2.1</span>

Therefore, the table that could represent Relationship B is table A.
7 0
4 years ago
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Let f ( x ) = 2 x − 1 , g ( x ) = 3 x , and h ( x ) = x ^2 + 1 , what is h( h ( 5) ) ?
strojnjashka [21]
First you would solve for h(5) by plugging in 5 as your x, then solving it.

h(5) = 5^2 + 1
h(5) = 25 + 1
h(5) = 26

Next you would multiply the 26 by the individual h, which is basically h(1).

h(1) = 1^2 + 1
h(1) = 2

Lastly you multiply your h(1) value by the h(5) value to get your answer.

h(1) • h(5) = 26 • 2
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7 0
4 years ago
A cylinder has a volume of 162 in. What is the volume of a cone with the same radius
Vesna [10]

Answer:

The voume of the cylinder is (pi)(x^2)(y)

Voulne of the cone is (1/3)(pi)(3x)^2(h).   H is the unknown height of the con2

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Step-by-step explanation:

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3 years ago
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Answer:

a) $4720

b) $5569.60

Step-by-step explanation:

Initial amount = $4000

Interest rate = 18% PA compounded

<u>Amount after 1 year</u>

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<u>Amount after 2 years</u>

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7 0
3 years ago
(15/8 + 2/5) + (-7/8) =<br> PLEASE HELP!<br> brainliest
Sphinxa [80]

Answer:

(15÷8+2÷5)+(-7÷8)

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= 2.275 - 0.875

=== 1.4

Step-by-step explanation:

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4 years ago
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