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MrRissso [65]
3 years ago
6

Tracy took a quiz containing 12 items (questions). If she answered 5/6 of the items correctly, how many items did she answer cor

rectly? thanks
Mathematics
2 answers:
liubo4ka [24]3 years ago
6 0

Answer:

10 questions

Step-by-step explanation:

12/6=2. 5 X 2 = 10                                                                                    Brainliest please

                                                             

Andrews [41]3 years ago
4 0

Answer:

10 questions correct out of 12.

Explanation:

If it is going by the ratio of 6, then divide 12 by 6 to get 2, meaning each \frac{1}{6} is worth 2, and since their is 5 of them, multiply 5x2 to get 10 out of 12.

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Can someone explain the answer and how the formula works?
zubka84 [21]

Answer:

A = 346.185 cm²

Step-by-step explanation:

The formula given is:

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A = Area of the object (circle).

π = 3.14

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Set the equation, plug in the corresponding numbers to the corresponding variables:

A = (3.14)(10.5)²

Simplify. Remember to follow PEMDAS.

PEMDAS =

Parenthesis

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First, solve the exponent.

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Next, multiply:

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A = 346.185 cm²

A = 346.185 cm² is your answer.

~

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4 years ago
Which double-angle or half-angle identity would you use to verify that 1+cos2a=2/1+tan2a?
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<span>

<span>Recalling that cos² (a) = 1 / sec² (a) and applying identity 3, we find the following:</span>

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Therefore giving us:

<span>2 cos² (a) = 2 / (1 + tan² (a))</span>

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4 years ago
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