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Kruka [31]
2 years ago
12

the width of a rectangle is 6inches less than twice it’s length. Find the dimension of the rectangle if it’s area is 108 square

inches
Mathematics
1 answer:
Sindrei [870]2 years ago
5 0

Answer:

Width = 12   Length = 9

Step-by-step explanation:

We have to first find an equations with the given variables:

w = 2L - 6

Now apply the area format:

Length * Width

Since the area is 108 square inches

108 = l * w

108 = l(2l-6)

108 = l(2l) + l(-6)

108 = 2l^2 - 6l

Simplify:

(l-9) * (l+6) = 0

Since no number can be negative

w = 2*9(L)-6

w = 12

l=9

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Answer:

Supplementary angles; 148°

Step-by-step explanation:

180° - 32° = 148° (supplementary angles)

8 0
2 years ago
From 1940 to 1980, the consumer price index (CPI) increased from 28.6 to 89.4. If a gallon of milk cost $0.75 in 1940 and the pr
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28.6 / 89.4 = 0.75 / x
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3 years ago
Tom took a trip of 1,300 miles. He traveled by train at 50 miles an hour and the same number of hours by plane at 275 mph. How m
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<span>Equation:
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3 0
2 years ago
Read 2 more answers
3a² + 11a – 42<br><br>this is factoring in algebra 2 (high school) <br>​
N76 [4]

To factor,

<h2>[[[</h2>

1) First multiply coefficient of a² and constant no,

That is,

3×(-42)=-126

Since the<u> resultant no is negative</u>, you should find two such factors of 126 <u>which</u> <u>will give us the coefficient of a (=11)</u> on subracting those factors.

2) Find the factor

126=2×3×3×7

=18×7

18 and 17 are factors of 126

Also,18-7 =11.

So they are required factors for factoring,

<h2>]]]</h2>

Once you have understood above steps you can solve on your own. All you need to do is split 11 into factors ,take common terms and you will get answer.

<u>Answer:</u>

3a²+11a-42

=3a²+(18-7)a -42

=3a²+18a-7a-42

=3a(a+6) -7(a+6)

=(a+6)(3a-7)

3 0
3 years ago
An observer (O) is located 900 feet from a building (B). The observer notices a helicopter (H) flying at a 49° angle of elevatio
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Answer:

1035.33 feet

Step-by-step explanation:

h=900tan49

=1035.33 feet

I hope it helps

6 0
2 years ago
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