3 years ago

What is the range of the following function? {(6, -1), (4, 0), (4, 4), (7, 9)}

Mathematics

1 answer:

Nookie1986 [14]3 years ago

8 0

Answer:

Range:

{ − 1 , 0 , 4 , 9 }

brainliest pls :D

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Andreas93 [3]

Answer:

yes

Step-by-step explanation:

it goes by 4s, so number cases times 4

6 0

3 years ago

Mika read a 405- page book in 6 hours, how many pages per minute did she read?

barxatty [35]

Divide 405 by 6 which is 67.5
So 67.5 per hour but it wants minutes
So divide 67.5 by 60 (minutes in an hour) and you’ll get 1.125 pages per minute

6 0

4 years ago

A philanthropic organization helped a town in Africa dig several wells to gain access to clean water. Before the wells were in p

Romashka [77]

Answer: -1.5

Step-by-step explanation:

When population standard deviation is known, then the formula to find the z-test statistic for population mean is given by :-

$z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

, where n= Sample size.

$\mu$ = Population mean

$\overline{x}$ = Sample mean

$\sigma$ = Population standard deviation.

As per given , we have $\mu=120$ (average infants contracted typhoid each month)

$\sigma=40$

n= 4 (No. of months)

$\overline{x}=90$

Then , the value of the appropriate test statistic will be :

$z=\dfrac{90-120}{\dfrac{40}{\sqrt{4}}}$

$z=\dfrac{-30}{\dfrac{40}{2}}$

$z=\dfrac{-30}{20}$

$z=-1.5$

Hence, the value of the test statistic = -1.5

8 0

3 years ago

-7x+12-2x=23+13x simplify by combining like terms that are on the same side of the equation

zavuch27 [327]

-7x+12-2x=23+13x

First take away 13x from the right side and put it on the left side adding taking it away from -7x

-7x(-13x)=-20x
-20x+12-2x=23

then add 2x to -20x
and move 12 to the other side, minus it off of 23

-18x=11

then divide -18x on both sides

then x=-11/18

6 0

4 years ago

What is the perimeter of this trapezoid?

Aleks04 [339]

Answer:

20 units

Step-by-step explanation:

see image

4 0

2 years ago