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2 years ago

PLEASE HELP I´LL GIVE BRAINLIEST AND 50 POINTS

Mathematics

2 answers:

Maurinko [17]2 years ago

6 0

Answer:

X = -1

Step-by-step explanation:

because if X is greater than -2 then it is -1 because it is the closest to 0 that is why it is -1 > -2 even though you may think that -2 is greater than -1 it's not

tia_tia [17]2 years ago

4 0

Answer:

The green marker should be placed at -2

Step-by-step explanation:

Hello!

We are looking for all the values greater than or equal to -2. Therefore, we can have any values to the right of -2, or equal to -2.

We can symbolize this by placing it on -2, and it is pointing right, so it marks all the places greater than -2, and equal to -2.

If it was less than or equal to -2, the direction would be pointing to the left, with the green point still on -2.

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A certain intelligence test has an N(100, 100) distribution. To see whether intelligence is inherited, tests are given to the el

Anettt [7]

Answer:

Follows are the solution to the given choices:

Step-by-step explanation:

In choice a:

$\to \mu = 100$

In choice b:

$\to \mu \neq 100$

In choice c:

$\to \ pop \ average=100 \\\\ \to \ variance \ of \ pop = 100 \\\\\to pop \ \ \sigma = \sqrt {(!00)} \\$

= 10

$z= \frac{\bar x - \mu}{ \frac{\sigma}{\sqrt(n)}}\\\\$

$=\frac{(105-100)}{\frac{10}{ \sqrt(16)}}\\\\=\frac{(5)}{ \frac{10}{4}}\\\\=\frac{5}{ \frac{5}{2}}\\\\= \frac{10}{5}\\\\=2$

$\to p==2\times (1- \ righttail)\\\\\to \ righttail\ \ p = \text{NORM.S.DIST(2,TRUE)}$

$=0.977249868$

$\therefore \\P=2 \times (1-0.9772)\\\\P=0.0455\\\\P$

Null hypothesis to dismiss

Alternate solution assumptions embrace

There is really no valid proof at the 5% stage that

Knowledge is legacy

In choice d:

Possibly information such as this reflect a sample population with such a true p = 0.0455 meaning in the hypothesis

u is around 100.

11 +001

7 0

3 years ago

Someone help me plz I need some help I’m gonna fail

irina [24]

They should both be A :)

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2 years ago

Which expression is equivalent to x^6 – 5

Bezzdna [24]

Answer:

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Step-by-step explanation:

6 0

3 years ago

If EF = x + 5, DC = 2x + 4, and AB = 2x + 2. Find EF.<br><br>

bonufazy [111]

Answer:

B *second one down.

Step-by-step explanation:

EF = 1/2(AB + CD)

x+5 = 1/2 (2x + 2 + 2x+4) Combine the like terms on the right.

x+5 = 1/2 (4x + 6) Remove the brackets.

x+5 = 1/2*4x + 1/2*6

x+5 = 2x + 3 Subtract x from both sides

5 = 2x-x + 3

5 = x + 3 Subtract 3 from both sides

5-3 = x

x = 2

EF = x + 5

EF = 2 + 5

EF = 7

The answer is B

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2 years ago

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AveGali [126]

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3 years ago

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