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2 years ago

8) Mark ran a mean distance of 13.2 km in five days. The next day, Mark ran 20 km.

Mathematics

1 answer:

lianna [129]2 years ago

8 0

Answer:

16.6

Step-by-step explanation:

Add the numbers together.

13.2+20=33.2

Now divide the number by 2.

33.2/2=16.6

Hope this helps!

If not, I am sorry.

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What equation passes through the points (0,6) and (6,2)

Serjik [45]

Answer:

First find the slope using the formula

m = (Y2 - y1)/(x2 - x1)

(x1, y1) = (0,6)

(x2, y2) = (2,10)

m = (10-6)/(2-0)

m = 4/2

m = 2

Now we need the y-intercept or b

y = mx + b

y = 2x + b

Use one of the coordinates for x and y. It doesn't matter which you choose

6 = 2(0) + b

6 = 0 + b

6 = b

Now let's put it together for the equation :

y = 2x + 6

3 0

3 years ago

Which of the following is written in correct scientific notation? 52.6 * 10-9 6.39 * 109 0.12 * 10-2 10 * 107

zepelin [54]

Answer:

Step-by-step explanation:

I will take a to be 52.6 * 10^-9 The number should be 5.26 * 10^-8 so A is not the answer.

6.39*10^9 This one is correct.

0.12 * 10^-2 is not correct. It should be 1.2*10^-3

10 * 10 ^7 should be 1*10^8 so D is not correct.

The coefficient of scientific notation must be a number between 1 and 10 and including 1 but not 10. This is written as 1 ≤x <10

5 0

4 years ago

Which of the following best explains why ? 1. The angles do not have the same reference angle. 2. Tangent is positive in the sec

matrenka [14]

Answer:

The angles do not have the same reference angle or the same sign.

Step-by-step explanation:

Given:

Statements related to the angle and the quadrant.

To Find:

Which statement gives best explanation

Solution:

Statements are follows:

1)The angles dont have same reference angle:

This statement is not totally true because some angles may have same reference angle . i.e depending upon the quadrant reference angle are founded .

2)Tangent is positive in second quadrant and negative in 4th quadrant:

Above half statement is false because tangent is positive in 3rd and 1st quadrant and negative in rest of quadrant.

3)Tangent is negative in 2nd quadrant and positive in 4th quadrant :

Similarly it is half negative as tangent is positive in 3 and 1 quadrant only.

4)The angles dont have same reference angle or the same sign.

This statement is true in terms of sign because reference angle will not have same sign .this gives best explanation.

8 0

3 years ago

Read 2 more answers

How to solve 1,280.50 - 1,125.90

erastova [34]

Answer:

154.6

Step-by-step explanation:

You subtract them

4 0

3 years ago

Read 2 more answers

he vertices of a triangle are P(-3,8), Q(-6,-4), and R(1,1). Name the vertices of the image reflected in the X-axis

klemol [59]

Answer:

P'(-3, -8), Q'(-6, 4), R'(1, -1)

Step-by-step explanation:

When you reflect a point (x, y) across the x-axis, the x-coordinate remains the same, but the y-coordinate gets the opposite sign: it becomes (x, -y).

Thus, if a point P, say, (-3, 8) is eightn units above the x-axis, its reflection P' will be the same distance below, at (-3, -8).

Thus, we get the following transformations.

P (-3, 8) ⟶ P' (-3, -8)

Q (-6, -4) ⟶ Q' (-6, 4)

R (1, 1) ⟶ R' (1, -1)

Thus, the vertices of the reflected triangle are P' (-3, -8), Q' (-6, 4), R' (1, -1).

The image below shows ∆PQR and its reflection ∆P'Q'R' across the x-axis.

8 0

4 years ago