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3 years ago

Plz help me fast again thanks

Mathematics

1 answer:

zimovet [89]3 years ago

6 0

The answer is (d) first you solve 3/4

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I dont know the answer!! I give brainlist...

iragen [17]

Answer:

A. (f + g)(1) = - 9

B. (f - g)(0) = -7

C. (fg)(3) = 0

Step-by-step explanation:

A. (f + g)(1) = f(1) + g(1) f(1) = 1^2 - 9 = 1 - 9 = - 8 g(1) = 1 - 2 = - 1

= -8 -1 = -9

B. (f - g)(0) = f(0) - g(0) f(0) = 0^2 - 9 = 0 - 9 = -9 g(0) = 0 - 2 = -2

= -9 + 2 = -7

C. (fg)(3) = f(3)(g(3) f(3) = 3^2 - 9 = 9 - 9 = 0 g(3) = 3 - 2 = 1

= 0(1) = 0

4 0

3 years ago

The mean amount spent by a family of four on food is $500 per month with a standard deviation of $75. Assuming that the food cos

Alexeev081 [22]

Answer:

$z=\frac{x- \mu}{\sigma}$

And replacing we got:

$z=\frac{425-500}{75}= -1$

And we can calculate this probabilit using the normal standard distribution or excel and we got:

$P(z$

Step-by-step explanation:

If we define the random variable of interest "the amount spent by a family of four of food per month" and we know the following parameter:

$\mu = 500, \sigma = 75$

And we want to find the following probability:

$P(X$

And we can use the z score formula given by:

$z=\frac{x- \mu}{\sigma}$

And replacing we got:

$z=\frac{425-500}{75}= -1$

And we can calculate this probabilit using the normal standard distribution or excel and we got:

$P(z$

5 0

3 years ago

PLZ HELP! WILL MAKE A BRAINLIST <br>Which types of dilation are the given scale factors?

attashe74 [19]

Answer:

see explanation

Step-by-step explanation:

For a given scale factor k

If k > 1 then expansion

If k < - 1 then expansion in the opposite direction

If 0 < k < 1 or - 1 < k < 0 then contraction

k = - 2 ← expansion in opposite direction

k = 1.5 ← expansion

k = $\frac{1}{4}$ ← contraction

k = - $\frac{6}{7}$ ← contraction

5 0

4 years ago

One of the events at the circus starred Gabriella the Human Cannonball. On Saturday she performed in four shows. Shot from a can

MAXImum [283]

My guess is 59.49 meters, you add all 4 of the distances together to get the total from that one day. Hope this helps :)

7 0

3 years ago

Calculate the average daily balance with new purchases not included for the

USPshnik [31]

Answer: 510

Step-by-step explanation:

5 0

3 years ago

Plz help me fast again thanks​

Plz help me fast again thanks