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jeka94
3 years ago
12

The test score for a class are shown. What is the average test score? 79,80,92,92,81,100,88,98,71,100,91,90

Mathematics
1 answer:
Oksanka [162]3 years ago
5 0

Answer:

The average score is equal to 88.5

Step-by-step explanation:

we know that

An average test score is the sum of all the scores on an assessment divided by the number of test-takers.

so

The sum is equal to

Sum=[79+80+92+92+81+100+88+98+71+100+91+90]=1,062

The number of test-takers is n=12

The average score is equal to

\frac{S}{n}

substitute

\frac{1,062}{12}=88.5

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If I have line segmants with the measurements 3in, 5 in and 8 in; can I make a triangle?​
Dimas [21]

Answer:

Equilateral Triangle

Side a = 1

Side b = 1

Side c = 1

Angle ∠A = 60° = 1.0472 rad = π/3

Angle ∠B = 60° = 1.0472 rad = π/3

Angle ∠C = 60° = 1.0472 rad = π/3

C=60°B=60°A=60°b=1a=1c=1

Area = 0.43301

Perimeter p = 3

Semiperimeter s = 1.5

Height ha = 0.86603

Height hb = 0.86603

Height hc = 0.86603

Median ma = 0.86603

Median mb = 0.86603

Median mc = 0.86603

Inradius r = 0.28868

Circumradius R = 0.57735

Vertex coordinates: A[0, 0] B[1, 0] C[0.5, 0.86603]

Centroid: [0.5, 0.28868]

Inscribed Circle Center: [0.5, 0.28868]

Circumscribed Circle Center: [0.5, 0.28868]

Step-by-step explanation:

6 0
3 years ago
Can someone please help me with this, im doing a test and im stuck on this question.
Mashutka [201]

Answer:

20

Step-by-step explanation:

first do 75/50 = 1.5

then multiply red by 1.5

13 landed on red so

13 x 1.5 = 19.5

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6 0
3 years ago
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Answer: How can I help?

Step-by-step explanation:

6 0
3 years ago
Greg earns $14 per hour at his office job, along with a $25 weekly bonus. The following inequality represents his earnings on hi
Neporo4naja [7]

Answer:

Greg worked more than 20 hours.

Step-by-step explanation:

Let's solve the inequality for h so we know how many hours Greg worked:

Step 1. Subtract 25 from both sides of the inequality

14h+25>305

14h+25-25>305-25

14h>280

Step 2. Divide both sides by 14

\frac{14h}{14} >\frac{280}{14}

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We can conclude that Greg worked more than 20 hours.

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3 years ago
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Sveta_85 [38]
I know for sure it’s not B or D so I believe it is A.
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