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Over [174]
2 years ago
12

Select the correct answer.

Mathematics
1 answer:
Rama09 [41]2 years ago
3 0

Answer:

it's d

Step-by-step explanation:

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Izzie recently took a math test where each correct answer (a) on the main part of the test was worth 8.3 points. She also correc
Temka [501]

Answer:

12 correct answers

Step-by-step explanation:

Since in the main part she scores 8.3 points for each question she answers correctly, we can assume that the number of questions she answers correctly=a

Therefor, the total number of points she achieved in the math test in the main part alone can be expressed as:

Total score(main part)=8.3×a=8.3a points

She also solved a bonus question worth=11 points

Consider expression 1 below

The total score in the whole test=Total score in the main part+Bonus points, where;

Total score in the whole test=110.6 points

Total score in the main part=8.3a points

Bonus points=11 points

Substituting the values in expression 1:

8.3a+11=110.6

8.3a=110.6-11

8.3a/8.3=99.6/8.3

a=12

Number of correct answers in the main part=a=12

4 0
3 years ago
Please answer correctly, will mark brainliest
Helga [31]

Answer:

32.8

Step-by-step explanation:

C^2 - B^2 = A^2

34.6 ^2 - 11^2 = A^2

1197.16 - 121 = A^2

1076.16 = A^2

4 0
3 years ago
Calculate the length of the unknown side of this right angled triangle
azamat

Answer:

12.04

Step-by-step explanation:

Well to solve for the unknown side "c" we need to use the Pythagorean Theorem formula,

a^2 + b^2 = c^2

We already have a and b which are 8 and 9 so we plug them in.

(8)^2 + (9)^2 = c^2

64 + 81 = c^2

145 = c^2

c = 12.04 rounded to the nearest hundredth.

<em>Thus,</em>

<em>the unknown side is about 12.04.</em>

<em />

<em>Hope this helps :)</em>

8 0
3 years ago
What is the product?
Marina86 [1]

Answer:

\frac{2}{k+2}

Step-by-step explanation:

Simplify the expression and you will get this.

hope this helps

3 0
2 years ago
The annual growth rate of energy utilization in the world was 3.5% per year in the period between 1950 and 1973. How long would
nika2105 [10]

Answer:

Good Luck!

Step-by-step explanation:

4 0
2 years ago
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