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SIZIF [17.4K]
2 years ago
7

The table shows jills math quiz scores. what is the minimum score she needs on her next quiz to have a mean of at least 92

Mathematics
1 answer:
Feliz [49]2 years ago
3 0

Answer:

90

Step-by-step explanation:

The mean is the average:

(92 + 96 + 94 + 88 + x) / 5 ≥ 92

370 + x ≥ 460

x ≥ 90

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How many triangles are there that satisfy the conditions a =13, b =9, A = 62°?
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Answer:

Step-by-step explanation:

Alright, lets get started.

Using sin Law,

\frac{sinA}{a}=\frac{sinB}{b}

Plugging the value of a, b and angle A

\frac{sin62}{13}=\frac{sinB}{9}

sinB=\frac{9*sin62}{13}

sinB=\frac{9*0.8829}{13}

sinB=0.61127

taking sin inverse on both sides

B=sin^{-1}(0.61127) =37.68

The may be another value of B that will called B' = 180-37.68=142.32

We will not consider this B' value because the um of angle B' and A will exceeds 180 degree (142.32+62=204.32)

Thats why only one triangle is possible.   :   Answer

Hope it will help :)

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Step-by-step explanation:

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Step-by-step explanation:

60,845-2,926=57,919

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