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3 years ago

Question and choices are in the photo please explain the answer

Mathematics

1 answer:

horsena [70]3 years ago

8 0

Step-by-step explanation:

but sorry i can't get the answer of (2x-1) =3 (x+5) because the answer of this came -16

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What is a value between 1/4 and 1/3 is

yaroslaw [1]

9514 1404 393

Answer:

2/7

Step-by-step explanation:

Any unit fraction with a denominator between 3 and 4 will be between 1/3 and 1/4. For example, ...

1/3.5 = 2/7 . . . . is between 1/3 and 1/4

You can also go at this considering decimal equivalents.

1/4 = 0.25

1/3 = 0.333... (repeating)

So, decimal numbers like 0.26, 0.295, 0.3330 are all values that are between 1/4 and 1/3.

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3 years ago

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

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3 years ago

Please help fast and i brainliest!!! What is the first step in solving the equation 3x2−6x+1=0 by completing the square? Write t

sashaice [31]

Answer:

yoi look for what you add to the equation to make it a perfect square by dividing 6 by 2 then add 2^2 to both sides.

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3 years ago

Write the product of 6*6*6*6*6 in exponential form

Darina [25.2K]

6^5 because there are 5 six's being multiplied

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3 years ago

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Enacting a modeled response depends on your ability to reproduce the response by converting your stored mental images into overt

brilliants [131]

Answer:

Step-by-step explanation:

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2 years ago