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3 years ago

PLEASE HELP PLEASE HELP

Mathematics

1 answer:

Arlecino [84]3 years ago

6 0

The values in the ordered pairs of a function are swapped to define its inverse. The appropriate choice is the one that looks like ...

... (-8, 5)

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Use the distributive property to write an expression that is equivalent to the sum of 9 and 54.

S_A_V [24]

The answer is the first one 9(1+6)

8 0

3 years ago

Read 2 more answers

Which of the sets of ordered pairs represents a function?

IgorC [24]

Answer:

Neither set A nor set B represents a function.

Step-by-step explanation:

According to the definition of a function, for each input there exists a unique output. In other word for each value of x there exists unique value of y.

In set A we have four ordered pair (-4,5),(1,-1),(2,-2) and (2,3).

It means for x=2, we have two values of y, i.e., -2 and 3.

Since for a single value of x there exist more than one value of y, therefore set A is not a function.

In set B we have four ordered pair (2,2),(3,-2),(9,3) and (9,-3).

It means for x=9, we have two values of y, i.e., -3 and 3.

Since for a single value of x there exist more than one value of y, therefore set B is not a function.

3 0

3 years ago

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Help please <br> Right angle triangle

baherus [9]

Answer:

h ≈ 11.9

Step-by-step explanation:

Since the triangle is right we can use the cosine ratio to find h

cos24° = $\frac{adjacent}{hypotenuse}$ = $\frac{h}{13}$

Multiply both sides by 13

13 × cos24° = h

⇒ h = 11.9 cm ( to 1 dec. place )

8 0

3 years ago

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It takes 1 1/3 hours to set up 1/3 of an hour to run and 2/3 of an hour to verify the results. How many hours will it take to co

liraira [26]

Answer: It will take $\frac{7}{3}$ of an hour to complete the test.

Step-by-step explanation:

We need to convert the mixed number $1\ \frac{1}{3}$ to an improper fraction:

$1\ \frac{1}{3}=\frac{(1*3)+1}{3}= \frac{4}{3}$

Now, we need to make the following add the fractions in order to calculate how many hours will it take to complete the test. Then, we get:

$\frac{4}{3}+\frac{1}{3}+\frac{2}{3}=\frac{4+1+2}{3}=\frac{7}{3}$

Therefore, it will take $\frac{7}{3}$ of an hour to complete the test.

5 0

3 years ago

Determine if the following system of equations has no solutions, infinitely many

Lesechka [4]

Step-by-step explanation:

5x+6=1

5x=1-6

5x=-5

x=-1 in -5x-8y=2

-5(-1)-8y=2

5-8y=2

-8y =2-5

-8y=-3

7 0

3 years ago