3 years ago

The functions u and w are defined as follows. u(x)=-2x-2 w(x)=x^2-2 what’s the value of w(u(4))

Mathematics

1 answer:

Ket [755]3 years ago

3 0

Answer:

what how do you even do this

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5x+2y=22. -2x+6y=3 What is the X coordinate of the solution. Round to the nearest tenth

just olya [345]

Multiply first example by 3 and subtract by second example, you will get the following:

3*(5x + 2y) = 3*22 => 3*5x + 3*2y = 66 => 15x + 6y = 66
now subtraction:
(15x + 6y) - (-2x + 6y) = 66 - 3
15x + 6y + 2x - 6y = 63
15x + 2x + 6y - 6y = 63
17x = 63
x = 63/17 ≈ 3.705..... and as it says to round to the nearest tenth our answer would be: x = 3.7

8 0

3 years ago

What fraction must be subtracted from the sum of 1/4 and 1/6 to have an average of 1/12 of all the two fractions

DanielleElmas [232]

Answer:

so 1/3 must be subtracted from the sum of 1/4 and 1/6 to have an average of 1/12 of all the two fractions.

Step-by-step explanation:

let the fraction be x

(1/4 + 1/6)-x = 1/12

or, 10/24 - x = 1/12

or, 5/12-1/12 = x

so, x = 4/12 = 1/3

8 0

3 years ago

Once a customer fills the car with gas at one station, that customer cannot then go fill the same car with gas at another statio

cluponka [151]

Answer:

yes :- P ( Ei ∩ Ej ) = 0

Step-by-step explanation:

These are mutually exclusive events

that is, a customer can only go to a gas station to fill his car with gas par time

P(E1) = 1/4

P(E2) = 1/4

P(E3) = 1/4

P(E4) = 1/4

summation of the four probabilities give 1

6 0

3 years ago

Maria bicycled every day for 14 days. She traveled 294 miles. How many miles did she travel per day?

RSB [31]

Answer:

Maria bicycled 21 miles per day.

Step-by-step explanation:

294/14=21

Hope this helps!

7 0

3 years ago

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phil's age is 7 years more than 1/5 times peter's age.also,4 times phil's age is 2 years less than twice peter's age .if x is pe

bearhunter [10]

Let Peters age be x
Phil's age is 1/5x+7---------------------------(i)
Phil's age can also be calculated as
4(1/5x+7)=2x-2--------------------------------(ii)
So,
4/5x+28=2x-2
28+2=2x-4/5x
30=10/5x-4/5x
30=6/5x
x=30* $\frac{5}{6}$
x=25

5 0

3 years ago

Read 2 more answers