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Blababa [14]
3 years ago
8

Are these two questions correct?

Mathematics
2 answers:
jok3333 [9.3K]3 years ago
6 0
Yes! You answered them correctly!!
Oksanka [162]3 years ago
3 0

Answer:

Yes you answered them both correctly.

Step-by-step explanation:

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Runners in a long distance race start out going 6 kilometers east and then head north for the remainder of the race. The finish
Harrizon [31]

Answer:

Step-by-step explanation:

alright lets get started.

Please refer the diagram I have attached.

the runner traveled, six kilometers east.

Next, they turn to north and suppose they run x kilometers.

The starting and the ending points distance is 10 kilometers.

There will be a right triangle formed, we can find the value of x by using Pythagorean theorem.

a^2+b^2=c^2

6^2+x^2=10^2

36+x^2=100

Subtracting 36 from both sides

x^2=100-36=64

x=8

So, the runners travel 8 kilometers to the north.     :    answer

Hope it will help.  :)

6 0
3 years ago
Read 2 more answers
Find the constant of variation k for the direct variation 2x +6y = 0
scoray [572]
<span>A relationship between two variables in which one is a constant multiple of the other. The constant here is also called the constant of variation. In order to obtain this value, we manipulate the equation by isolating the variables. We do as follows:

</span><span>2x +6y = 0
y = -x/3

Therefore, the constant of variation is -1/3. Hope this answers the question. Have a nice day.</span>
5 0
3 years ago
Polynomials <br><br> Multiply (2x - 3)(7x – 4)
choli [55]

Answer:

(2x-3)(7x-4)

2x(7x-4)-3(7x-4)

14x²-8x+21+12

14x²-8x+33

7 0
2 years ago
Read 2 more answers
75% of the 40 beverages in the vending machine are sports drinks. How many of the beverages are sports drinks?
GrogVix [38]
There are 30 sports drinks
40/100 = 0,4x75 = 30
4 0
3 years ago
Demi’s last 5 bowling scores were 68, 75, 90, 80. What was Femi’s mean score? A.72 B.75 C.77 D.79 D.
-Dominant- [34]

Complete Question:

Femi's last 5 bowling scores were 68, 75, 72, 90, and 80.  What was Femi's mean score?

Answer:

Step-by-step explanation:

Given

Scores: 68, 75, 72, 90, and 80

Required

Determine the mean

The mean (M) of a data is calculated as thus:

M = \frac{\sum x}{n}

Where

n = number of data.

In this case,

n = 5

and

\sum x = sum of data

So, the formula becomes

M = \frac{68 + 75 + 72 + 90 + 80}{5}

M = \frac{385}{5}

M = 77

<em>Hence, the mean is 77</em>

5 0
2 years ago
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