2 years ago

Describe the steps you would use to solve the equation 5( 2a - 3 ) = 20 + a.

Mathematics

1 answer:

Valentin [98]2 years ago

4 0

Answer:

Distribute the 5 to get 10a-15=20+a and solve

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Which of the following numbers has a square root of 9 3 4.5 18 81

sashaice [31]

81 has the square root of 9.

Square root of 3= 1.73205080757

Square root of 4= 2.02484567313

Square root of 18= 4.24264068712

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Can anyone help me with this answer.

Kitty [74]

Answer:

27 cm²

Step-by-step explanation:

Shaded Area = Area ABCE - Area AED

S.A. = 6 x 6 - 1/2 x 3 x 6 [DE = 1/2AB = 1/2 X 6 = 3]
S.A. = 36 - 9
S.A. = 27 cm²

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Which quadrant in a coordinate plane has two positive points

vodomira [7]

Answer:

The first quadrant

Step-by-step explanation:

Aka upper right quadrant

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If a car can travel 220 miles on 12 gallons of gas, how many gallons

vampirchik [111]

Set up a ratio of known to unknown:

Let X = the amount of gas needed for 500 miles:

220/12 = 500/x

Cross multiply:

220x = 6000

Divide both sides by 220:

X = 6000 / 220

x = 27.27 gallons (round answer as needed).

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2 years ago

If f(x) = (1/9)(9^x) what is f(3)

TiliK225 [7]

Answer: The required value of f(3) is 81.

Step-by-step explanation: We are given the following function :

$f(x)=\left(\dfrac{1}{9}\right)9^x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

We are to find the value of f(3).

Substituting x = 3 in equation (i), we get

$f(3)\\\\\\=\left(\dfrac{1}{9}\right)\times9^3\\\\=9^2\\\\=81.$

Thus, the required value of f(3) is 81.

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