3 years ago

Please answer correctly !!!!!!!! Will mark brainliest !!!!!!!!!!!!

Mathematics

1 answer:

dedylja [7]3 years ago

8 0

Answer:

-1/5

Step-by-step explanation:

h(0) is 5, and h^-1 is 1/h, so 1/-5 is -1/5.

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An engineering firm is hired to determine if certain waterways in Virginia are safe for fishing. Samples

Natalija [7]

Answer:

(a) S = {FFF, FFN, FNN, FNF, NNN, NNF, NFF, NFN}

(b) S(E) = {FFF, FFN, FNF, NFF}

Step-by-step explanation:

F = safe to fish

N = not safe to fish

number of rivers sampled = 3

(a) All of the possible outcomes obtained from the samples are listed in the sample space bellow:

S = {FFF, FFN, FNN, FNF, NNN, NNF, NFF, NFN}

(b) If at least two rivers are safe, the sample space for E is all of the events with two or three safe rivers:

S(E) = {FFF, FFN, FNF, NFF}

(c) In the set {FFF, NFF, FFN, NFN}, the second lake sample is safe to fish in all of the elements. The event is: second river is safe for fishing.

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3 years ago

Complete the function table below for the function F(x) = x2 + 2. x 1 2 3 4 F(x) 3 The numbers in the second row of the complete

Afina-wow [57]

False.
-Apex, You're welcome

4 0

3 years ago

Two numbers have a sum of 20 and a difference of 16 what are the two numbers

HACTEHA [7]

A. 18+2 = 20 abs 18-2= 17

8 0

3 years ago

A group of children share 11 3/7 vegetarian pizzas. Each child receives 10/14 of a pizza. How many children are in the group

7nadin3 [17]

8 children because
11 3/7 is equal to 83/14
If each child receives 10/14
83/10
= 8.3
There can't be .3 of a child so round it and you get 8!
Hope this helps!

5 0

3 years ago

In the function f(t) = sin(t), what is the effect of multiplying t by a coefficient of 2?

liubo4ka [24]

Answer:

"changes the period to pi"

Step-by-step explanation:

f(t) = Sin(t),

Here, t is the period, by definition.

Multiply t by a number that is GREATER THAN 1, makes the period shorter and compressed.

Multiplying t by a number that is between 0 and 1 makes the period expanded.

For the first, if we multiply the period by a, the period becomes $\frac{2\pi}{a}$

Since the problem tells us to multiply by 2, we know the period becomes compressed and becomes :

$\frac{2\pi}{2}=\pi$

Third answer choice is right.

5 0

3 years ago