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DedPeter [7]
2 years ago
11

A rectangle has a length of 10 inches and a width of 5 inches. If the length is increased by x inches and the width decreased by

twice that amount, express the area of the rectangle as a function of x.
Mathematics
1 answer:
lorasvet [3.4K]2 years ago
5 0

Answer:12.5

Step-by-step explanation

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What is f(-2) of the function given below? *<br> f(x) = 3x2 - 4x + 1
slava [35]

Answer:

f(-2) = 21

Step-by-step explanation:

Step 1: Define

f(x) = 3x² - 4x + 1

f(-2) is x = -2

Step 2: Substitute and Evaluate

f(-2) = 3(-2)² - 4(-2) + 1

f(-2) = 3(4) + 8 + 1

f(-2) = 12 + 9

f(-2) = 21

5 0
3 years ago
A radio transmission tower is 190 feet tall. How long should a guy wire be if it is to be attached 13 feet from the top and is t
gladu [14]

Answer:

343.7 ft

Step-by-step explanation:

The wire is anchored 190 -13 = 177 ft from the ground. That distance is opposite the given angle (31°). The measure you want is the hypotenuse of the triangle with that side and angle measures.

The mnemonic SOH CAH TOA reminds you that the relation between the opposite side, hypotenuse, and angle is ...

Sin(angle) = Opposite/Hypotenuse

Filling in the given information, you have ...

sin(31°) = (177 ft)/hypotenuse

Solving for hypotenuse gives

hypotenuse = (177 ft)/sin(31°) ≈ 343.7 ft

The length of the guy wire should be 343.7 ft.

5 0
3 years ago
Determine if the fractions are equivalent. Show your work. <br><br> 8. 3/5 6/15
fomenos
They are different the fraction 3/5 is 0.6 in decimal,and the fraction 6/15 is 0.4 in decimal.
Wish that helped.

6 0
3 years ago
Read 2 more answers
Nth term of 70, 100, 130
BlackZzzverrR [31]

Answer:

a1 = 70

a2 = 100

a3 = 130

an = 70 + 30(n - 1)

6 0
3 years ago
What is the length of feet in 5 equal length of ribbon equaling 2 yards of ribbon
alisha [4.7K]
Am presuming you are asking for the length of each ribbon in feet.

5 of them = 2 yards.

1 of them =  2/5 = 0.4 yards.

But note 3 feet make 1 yard.

Therefore:  0.4 yards = 0.4 * 3 feet =  1.2 feet.
3 0
3 years ago
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