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KIM [24]
3 years ago
10

Need help with this please and thank you

Mathematics
1 answer:
Elis [28]3 years ago
7 0

Answer:

the answer is B

Step-by-step explanation:

Each mark represents 20%, you move right three times. 20x3 = 60

60%

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Find a third angle of a right triangle if one of the angles measures 24°.
WITCHER [35]
Well from what we know about triangle is that they all add up to 180 degrees!

A right triangle would have a 90 degree angle and from the given measurements we know that the other on is 24 degrees.

So we simply subtract!! 

180 - 90 = 90 degrees

90 - 24 = 66 degrees

So the measure of the third angle is 66 degrees. :)

Hope this helps. c:
3 0
3 years ago
jason mixed 8ml of a salt solution with 11ml of a 47% salt solution to make a 43%salt solution. find the percent salt concentrat
choli [55]

Let x% be the salt concentration of first solution.

Then in 8ml, amount of salt = \frac{8x}{100}

Given that to this 8ml solution, 11ml solution of a 47% salt solution is mixed.

amount of salt in 11ml of 47% salt solution is \frac{11*47}{100} = \frac{517}{100}

So, total amount of salt in new mixture = \frac{8x}{100} +\frac{517}{100} = \frac{8x+517}{100}

But given that this new solution is a 43% salt solution.

Hence amount of salt in new mixture of (8+11)=19ml solution of 43% salt solution is \frac{19*43}{100} = \frac{817}{100}

Hence \frac{8x+517}{100} = \frac{817}{100}

            8x+517 = 817

             8x=817-517 = 300

          x= 300/8 = 37.5

Hence the salt concentration in the first solution is 37.5%

8 0
3 years ago
What is the mean of this data set? {14, 7, 2, 8, 3} Enter your answer as a decimal in the box.
Assoli18 [71]

The mean of the data set is 6.8.

<h3>What is the mean?</h3>

Mean is the average value of the given set of observations. In statistics, we also come across different types of mean such as Arithmetic, Geometric and Harmonic mean.

Given

The data set is 14, 7, 2, 8, 3.

The mean of the data set is given by;

\rm Mean = \dfrac{Sum \ of \ all \ data}{Number \ of \ data}\\\\Mean =\dfrac{14+7+2+8+3}{5}\\\\Mean = \dfrac{34}{5}\\\\Mean=6.8

Hence, the mean of the data set is 6.8.

To know more about mean value click the link given below.

brainly.com/question/4209766

3 0
2 years ago
I need help with this bad
Gala2k [10]
6. A-C
8. A-D
Thats all I know, sorry.
6 0
3 years ago
The area of a trapezoid is 95 square inches and its height is 10 inches. The length of one base of the trapezoid is 8 inches. Wh
Tanzania [10]

Answer:

C. 11

Step-by-step explanation:

here's my explanation its down below, i wrote it on paper

7 0
2 years ago
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