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Elenna [48]
3 years ago
14

Please help! I'll give out the brainiest!

Mathematics
1 answer:
maria [59]3 years ago
3 0
The answer to this question is..

C. 5x - 15 <span>≥ 85
</span>
As we already know, wherever the arrow points is where the equal than or less than sign is going to point. So in this problem, A and B are not possible answers. We then can identify that if we added 85 to the left side, the number line would be a lot higher than it currently is. If you need further explanation, don't hesitate to ask.

- Sofie
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I can't seem to figure this out
antiseptic1488 [7]

Answer:

c. 4

Step-by-step explanation:

tan (30)/1 = x/7 *cross multiply*

x = 7 (tan(30))

x = 4.04

x = 4

6 0
3 years ago
I need to send photos.
frez [133]

SOLUTION:

Step 1:

From the given question, and comparing the scores in classes A and B

Step 2:

Question one, to know the class which had the better overall result on the exam;

(I) The scores in class A ranges from 65 to 100, while that of class B ranges from 60 to 90. This explains that class A had better results.

(ii) The median of the scores in class A is 85, while the median of the scores in class B is 75, this is another piece of supporting evidence that class A had better results.

Step 3:

Question two, to know the class which had greater variability in the results;

For a better understanding of this question, I need to explain the concept of variability in statistics.

Variability in statistics refers to the difference being exhibited by data points within a data set, as related to each other or as related to the mean. This can be expressed through the range, variance or standard deviation of a data set.

Step 4:

So we need to find the range of scores in each of the two classes and then compare, the class with the greater range has the greater variability.

The Range is the difference between the lowest and highest score (H - L), where H is the highest score and L is the lowest score.

Step 5:

Applying the formula for range stated in step 4;

For Class A; H = 100 and L = 65

For Class B; H = 90 and L = 60

The range for class A; H - L = 100 - 65 = 35

The range for class B; H - L = 90 - 60 = 30

By comparing the range of class A and that of B, it is clear that Class A had a greater range (variability)

CONCLUSION:

Class A had better overall results in the exam and greater variability in the results.

6 0
1 year ago
Simplify the sum. d^2-9d+20/d^2-3d-10 plus d^2-2d-8/d^2+4d-32
dimaraw [331]
For this case what you should do is follow the following steps:
 1) factorize numerator and denominator of both expressions.
 2) cancel similar terms
 3) add both fractions by cross product
 4) Rewrite the numerator and denominator.
 Answer:
 
See attached image.

3 0
3 years ago
Read 2 more answers
Divide.
Alexxandr [17]

Answer:

2x³-2x²-3x-14

<em><u>Hop</u></em><em><u>e</u></em><em><u> it</u></em><em><u> helps</u></em><em><u> you</u></em>

3 0
2 years ago
Sara and Katy each scored points during six basketball games.
poizon [28]

Answer:

hey  aneesh it is bill i see ur trying to cheat on the snapshot

Step-by-step explanation:

dont think i  dont see u tryna cheat

the answer is 25 btw

step by step explanation:

x + 5x = 150

25 x 5 = 125

125 + 25 = 150

x = 25

im telling ms brake

i already finished the snapshot btw

3 0
3 years ago
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