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3 years ago

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Mathematics

1 answer:

myrzilka [38]3 years ago

4 0

Answer:

35 + 14 = 7 ( 5 + 2 )

Step-by-step explanation:

The distributive property to factor;

35 + 14

We do factors of both 7 * 5 + 2 * 7

Then take common 7 ( 5 + 2 ) 35 + 14 is 49

And 7 ( 7 ) = 49

Therefore 35 + 14 = 7 ( 5+2 )

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Practice writing and solving quadratic equations.

liberstina [14]

Answer:

$\boxed{\sf \ \ \ x^2 + x -72 = 0 \ \ \ }$

Step-by-step explanation:

Hello,

We need to use the <u>distributive property</u> which means that for a, b and c real numbers a(b+c)=ab+ac

So here we can write

$x(x+1)=72\\ x*x+x*1=72\\ x^2 + x -72 = 0\\$

do not hesitate if you have any question

8 0

3 years ago

Six is one hundred times ???????????

dezoksy [38]

Answer:

0.06

Step-by-step explanation:

6 is 6.0 and 0.06 times 100 is 6.

5 0

3 years ago

Read 2 more answers

To decrease an amount by 4% what single multiplier would u use ??

serg [7]

If you decrease something by 4 percent,

you are keeping (100% - 4%) or 96% of the original

so multiply by the original amount by 96 percent or .96

If you have 100 pennies, and you give 4 away ( 4 percent decrease), you still have 96 pennies. You are keeping 96 percent of what you started with. This works no matter how much you start with.

Example:

you have 40 dollars

4% decrease

40 * .04 = 1.6 take this away

40 - 1.6 = 38.4 left

you keep 96 percent

40 * .96 = 38.4 left

3 0

3 years ago

Read 2 more answers

Brianna received an overall IQ score of 117 on the Wechsler Scale. This means that Brianna has scored approximately____________

Tresset [83]

Using the normal distribution, it is found that the correct option is:

D. 1; 100

In a <em>normal distribution</em> with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

It measures how many standard deviations the measure is from the mean.

In this problem:

The mean on the Wechsler Scale is of 100, hence $\mu = 100$ .

The standard deviation is of 17, hence $\sigma = 17$ .

Brianna had an score of 117, hence $X = 117$

Then:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{117 - 100}{17}$

$Z = 1$

Hence, the option d is correct.

To learn more about the normal distribution, you can check brainly.com/question/24663213

7 0

3 years ago

Please help, thank you.

irakobra [83]

Answer:

4:1 is first answer

10:3 is second answer

5 0

3 years ago

Read 2 more answers