Six blood pressure readings are 115, 120, 123, 121, 121, and 112 mm Hg. What is the average (mean) value?

Answers

Answer 1

Answer:

Answer:

118.666666667 mmHg

Step-by-step explanation:

To find the average/mean of a set of values, you add all the values together, then divide them by the amount of values in the set.

115+120+123+121+121+112 = 712

Since there is 6 values, you divide this by 6.

712÷6 = 118.666666667 mmHg

Hope this helps!

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Two perpendicular lines intersect at the origin. If the slope of the first line is 3, what is the equation of the second line?.

Answers

The slope of the line perpendicular to a line with a given slope is its negative reciprocal. Hence, the new slope is -1/3. The equation of the line given slope and point can be generally expressed as,
y - y1 = m(x - x1)
Substituting,
y - 0 = (-1/3)(x - 0)
The final equation would be,
x + 3y = 0

if slope of first line is 3 and is perpendicular to second line
then second line has a slope of -1/3

Mona solved an equation incorrectly, as shown below:Step 1: 5x = 30
Step 2: x = 30 − 5
Step 3: x = 25

Which statement best explains why Step 2 is incorrect in Mona's solution?

She did not add 5 to 30.

She did not divide 30 by 5.

She did not multiply 30 by 5.

She did not multiply 30 five times.

Answers

Answer:

Option 2nd is correct

She did not divide 30 by 5.

Step-by-step explanation:

As per the statement:

Mona solved an equation incorrectly, as shown below:

Step 1: 5x = 30

Step 2: x = 30 − 5

Step 3: x = 25

Step 2 is incorrect as she did not divide 30 by 5.

Correct steps for the equation are:

Step 1.

$5x = 30$

Step 2.

$x = (30)/(5)$

Step 3.

x = 6

Therefore, the statement which explains that Step 2 is incorrect in Mona's solution is, She did not divide 30 by 5.

Mona subtracted 5 where she should have divided 5. If the equasion was. x+5=30 then she would have subtracted 5.

What is the vertex of the graph of f(x) = |x – 13| + 11?

Answers

Hello,

the graph of f(x) is joint here.
It has a form of "V" with (13,11) like vertex;
It is a minimum.
It is composed of 2 half straight lines y=-x-2 (for x<13) and y=x+2 (for x>13)

Answer:

x>13

Step-by-step explanation:

edge 2021

The circumference of a circle is 12 pi inches. find its radius and area the radius of the circle is____inthe area of the circle is _____in^2

Answers

The circumference of a circle has the formula: 2*pi*r. So, we could easily determine the value of r.

C = 2*pi*r
12*pi = 2*pi*r
12 = 2r
r = 12/2
r = 6 inches

Knowing the r, we could find the area which has the formula

A = pi*r^2
A = pi*6^2
A = 113.1 square inches

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