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3 years ago

11

Which number, when rounded to the nearest tenth, is 43.6?

2 answers:

irina [24]3 years ago

8 0

Answer:44

Step-by-step explanation:

hammer [34]3 years ago

4 0

Answer:

Is this multiple choice?

Step-by-step explanation:

Between 43.55 and 43.649

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What is the standard deviation of a sampling distribution called?

GarryVolchara [31]

Answer: Standard error.

Step-by-step explanation:

If the population is normally distributed , then the standard deviation of a sampling distribution of the sample mean $[tex]\overline{x}$ [/tex] is known as standard error which depends on population standard deviation $(\sigma)$ and the sample size (n).

$\sigma_x=\dfrac{\sigma}{\sqrt{n}}$

It measure the variability in the sample statistics that happens by chance.

Thus, the standard deviation of a sampling distribution is called the <u>standard error</u>.

8 0

3 years ago

Noah took pictures of different lizards for a science project. He wanted 20 pictures altogether, but he only had 11 pictures so

NNADVOKAT [17]

Answer:

9 pictures

Step-by-step explanation:

if Noah needed 20 pictures in all ,but only had 11 he would subtract 11 from 20 leaving Noah with 9 pictures.

6 0

3 years ago

20x^2-30=4x solve for x

ankoles [38]

Answer:

x=1.3288 or -1.1288

Step-by-step explanation:

Given $20x^{2}-30=4x$

Subtract 4x from both sides

$20x^{2}-4x-30=0$

Since we can factor out 2 from whole equation, let's factor out 2.

$2(10x^{2}-2x-15)=0$

Divide with 2 on both sides

$10x^{2}-2x-15=0$

We got the quadratic equation, we can solve for x using quadratic formula.

$x=\frac{-b\pm\sqrt{b^{2}-4ac} } {2a}$

$x=\frac{2\pm\sqrt{2^{2}-4X10X(-15)} } {2X10}$

$x=\frac{2\pm\sqrt{604} }{20}$

$x=\frac{2\pm2\sqrt{151}}{20}$

$x=1.3288or-1.1288$

8 0

3 years ago

Read 2 more answers

How do i graph this i don’t understand

enot [183]

Answer:

I cant see the question

Step-by-step explanation:

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3 years ago

A recipe that serves 6 people requires 210 grams of sugar what is the total amount of sugar needed if the recipe is changed to s

klio [65]

Answer:

The answer is 350 grams of sugar

Step-by-step explanation:

You use a ratio

$\frac{6}{10}$ = $\frac{210}{?}$

Compare the numerators. Since

6 ⋅ 35 =210 , multiply the denominator 10 by 35 to get 350

.

3 0

3 years ago

Read 2 more answers