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Nat2105 [25]
3 years ago
13

What is the value of the first term in the following arithmetic sequence?

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
3 0

Answer:

-9

Step-by-step explanation:

the first number

hope it is well understood

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The length of a rectangle is 2 feet less than twice the width. The area of the rectangle is 180 feet squared. Find the length an
Ksenya-84 [330]

Answer:

Width=10

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Step-by-step explanation:

The length is 2 feet less then twice the width

Let the width be x.

Then the length is 2x -2 based on the given information. Use this to make an equation since it is known that the area is 180feet squared.

x(2x-2)=180

2x^2 - 2x - 180 = 0

2( x^2 - x - 90) = 0

We now have a factorable quadratic.

2(x+9)(x-10)=0

So by zero product property, x=-9, x=10 Since a measure cannot be negative, -9 is an extraneous solution.

So x=10

Then the width is 10 and the length is 18

Hope this helps! Let me know if it is correct!

3 0
3 years ago
(2/5)^-2(-3)^4<br><br> What is the equivalent?
Nikolay [14]

Answer:

-8100

Step-by-step explanation:

(2/5)^-2(-3)^4

Given data

and second term

The first term=  (2/5)^-2  and

Second term=(-3)^4

Simplify the first term

(2/5)^-2= 2^-2/ 5^-2= 1/2^2 * 1/5^2

=1/4/ 1/25

=1/4*25/1

=100

Simplify the second term

=(-3)^4

= -81

Hence, 100*81

=-8100

8 0
2 years ago
Х<br> g(x)<br> -7<br> -4<br> -3<br> -4<br> *2<br> 1<br> 1<br> 2<br> -h statement in truon
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and I have to be a good guy and a great guy and a good man to help him out and

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3 years ago
Please help with this
Karolina [17]

x = -10 that is the answer your welcome

5 0
3 years ago
what is the hourly median income for a female with a less than a highschool diploma if you assume a 40-hour work week?
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Answer:

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8 0
3 years ago
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