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2 years ago

BRAINLIEST!!- Find 0.25of 40

Mathematics

1 answer:

ipn [44]2 years ago

7 0

Answer: 25% of 40 or 0.25 of 40 is 10.

Step-by-step explanation:

Basically you have to divide 40 by 10 because 1/4 of 100 is 25. 25 is 1/4 of 100.

So knowing this 40/0.25 is equal to 10. This is why 0.25 of 40 is 10.

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(2x2 − x) + (x2 + 3x − 1)

kodGreya [7K]

8x-1 13x-10 7+2x -3x+7

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2 years ago

A study analyzed the average yearly salt intake in the United States from 2012 thru 2017. The data is summarized in the table: Y

Nuetrik [128]

Answer:

Is an estimate of the average grams of salt used in 2012

Step-by-step explanation:

Let

x ---> the number of years since 2012

f(x) ---> is the total amount of salt ingested in grams

we have

$f(x)=52.3x+3.548$

This is a linear equation in slope intercept form

where

The slope is equal to

$m=52.3\ grams/ year$

The y-intercept or initial value is equal to

$b=3,548\ grams$

The y-intercept is the value of the function f(x) when the value of x is equal to zero

In this context, the y-intercept is the average amount of grams of salt ingested in the year 2012

The exact value of the average amount of grams of salt ingested in the year 2012 is 3,554 grams (see the data in the table)

Compare the exact value with the y-intercept

$3,554\ g\neq 3,548\ g$

therefore

3,548 grams Is an estimate of the average grams of salt used in 2012

7 0

3 years ago

What is the slope of the line?<br> A. -2<br> B. -1/2<br> C. 1/2<br> D. 2

Alexxandr [17]

To find the slope, you can either use the slope equation:
(y2-y1) / (x2-x1)
{I would recommend you remember this because you'll need to know this in the future}

or,

Just count. A slope is rise over run, so you see how far up the slope goes from one point to the other, (1), and then you see how far sideways the slope goes (2).
Going right, the slope is naturally declining downwards, so it's a negative.

The answer is B. -1/2.

6 0

2 years ago

CAN SOMEONE HELP ME PLEASE

beks73 [17]

Answer:

x squared

Step-by-step explanation:

x exponent 4 can be written like this:

x*x*x*x

*=multiply

you can then divide it by x 3 times and... ye.

If you think my answer is good can you maybe give me brainliest? I am trying to achieve virtuoso rank.

4 0

2 years ago

The measure of arc AB = ??? degrees

Bas_tet [7]

Asked and answered elsewhere.
brainly.com/question/9387684

4 0

3 years ago