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3 years ago

Help me please! !!!!!!!

Mathematics

2 answers:

Andrej [43]3 years ago

3 0

The answer is c. 1/9.

If x = -2, y = -1, z = 3

then, (-2(-1) -(-1)^2) / 3(3)

(2 - 1)/3(3)

1/9

In-s [12.5K]3 years ago

3 0

Its d that's the answer

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Question help the average income in a certain region in 2013 was $62 comma 00062,000 per person per year. suppose the standard

Iteru [2.4K]

Part a
The sample size is large enough to use the central limit theorem because it is greater than 30.

Part b.
The mean of the sampling distribution is 62000.
The standard error is computed as
$SE=\frac{s}{\sqrt{n}}=\frac{27000}{\sqrt{100}}=2700$

Part c.
Compute for the corresponding z-score of more than 2700 from the population mean.
$z=\frac{2700}{2700}=1$

Therefore,
$P\left(z\ \textgreater \ 1\right)=0.1587$

6 0

3 years ago

PLEASE HELP I will mark brainly !!

MAVERICK [17]

(3.5,1.5) that's the answer hope it works!!!

5 0

3 years ago

Help me please <br><br> will get rewared brainly if correct answer

larisa [96]

Well, split it into 3 shapes

21 x 10 = 210

3 x 6 = 18

2 x 6 = 12

210 + 18 + 12 = 240 square cm

imahe for more context

plzzz give me brainliest

5 0

3 years ago

Given the system of inequalities below: -3x - y < 12 2x + 3y ≥ 9 Give the coordinates of three points that are members of the

earnstyle [38]

Answer:

The coordinates of the points that are members of the solution set

(-3,7), (0,4) and (2,3)

Step-by-step explanation:

we have

$-3x-y< 12$ ----> inequality A

The solution of the inequality A is the shaded area above the dashed line

$2x+3y\geq 9$ ----> inequality B

The solution of the inequality B is the shaded area above the solid line

The solution of the system of inequalities is the shaded area between the dashed line and the solid line

see the attached figure

Remember that,

If a ordered pair is a solution of the system of inequalities, then the ordered pair must be in the shaded area of the solution

Plot the points

(-3, 7), (-3, -7), (3,-7), (-4,-0), (0,-4), (0,4), (2,3), (-2,3), (2,-3)

therefore

The coordinates of the points that are members of the solution set

(-3,7), (0,4) and (2,3)

3 0

4 years ago

Determine wheather the given lines are parallel or not. Write the reasons .

kenny6666 [7]

Answer:

yes it is parallel because the alternate interior angles are equal

7 0

3 years ago