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3 years ago

The scatter plot shows the systolic blood pressure of people of several different ages.

Mathematics

2 answers:

WITCHER [35]3 years ago

7 0

<h2>Answer:</h2>

<u>For question 1 the answer is 95 mm Hg per year and for question 2 the answer is approximately 147mm Hg</u>

<h2>Step-by-step explanation:</h2>

The equation give to us for the systolic blood pressure is given as y = x + 95. If we look at the graph and the equation there is an increase of 95 mmHg for each value of x which is the age so we can say that an increase of 95mm Hg is recorded. Then for the second part of the question if we again look at the graph we can see that the age is given in x axis and blood pressure in y axis. Value of x at 42 touches the y axis on 147 approximately which is the required blood pressure for given age.

LuckyWell [14K]3 years ago

4 0

i took the test too it’s A :):)

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3 years ago

(Scientific Notation in the Real World MC)

Brrunno [24]

The average number of viewers over the two week is D. 4.85 x 10^5.

<h3>How to calculate the value?</h3>

It should be noted that the scientific notation simply has to do with writing of numbers that are either too large or too small. This will be illustrated thus:

In this case, the TV show had 5.6 x 10^5 viewers in the first week and 4.1 x 10^5 viewers in the second week.

Therefore, the average number of viewers over the two weeks will be:

= (5.6 × 10^5) + (4.1 × 10^5) / 2

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1 year ago

Thanks for the help!

NikAS [45]

Answer:

Step-by-step explanation:

So we have the piecewise function:

$f(x)= \begin{cases}\sqrt{2x} & \text{if }x$

And we want to find f(8).

Since our input value is 8, choose the equation that fits our input.

The first equation demand x to be less than 3. 8 is not less than 3, so we won't use that.

The second equation demand x to e greater than or equal to 3 and less than 8. 8 is <em>not</em> less than 8. So, we won't use that.

The third equation demands x to be greater than or equal to 8. 8 is greater than or equal to 8, so we'll use the third equation.

So:

$f(x)=42\text{ if }x\geq 8$

$f(8)=42$

There're nothing more to do, we're done :)

The answer is A.

Edit: Improved Format

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3 years ago