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GalinKa [24]
3 years ago
15

Test is worth 50 points; test score of 84% idk

Mathematics
2 answers:
Licemer1 [7]3 years ago
8 0

Answer:

so if the test is worth 50 points and you got 84% on it you would get 50 times 84/100 points

so 50/1 times 84/100=(50*84)/(50*2)

this is also (50/50) times (84/2)

so you can take out the 50/50 which equals 1 and get 84/2 which divides to equal 42

so you will get 42 points

aleksklad [387]3 years ago
6 0
84% of 50 is 42. So if your test was graded out of 50 you would've gotten 42/50. If you multiply 50 by 2 (50x2), you have 100, so then you'd just divide the 84% by 2 so you'd get 42%
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3 years ago
A student has learned that test scores in math are determined by this quadratic function: s(t) = -(t-6)^2 + 99
ser-zykov [4K]

Answer:

a. 6,  b. 99, c. 63

Step-by-step explanation:

A)  The function s(t) is in the vertex form. The standard vertex form is a(x-h)+k where the vertex is (h,k). The vertex is the highest (or lowest in some cases) point of the graph, so if we use s(t) to get the vertex we get that h=6 and k=99. This means that for a student to get a perfect score they need to study 6 hours

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For questions 8 – 10, answer the questions about tangent-tangent angles.
olchik [2.2K]

Answer:

m(arc ZWY) = 305°

Step-by-step explanation:

8). Formula for the angle formed outside the circle by the intersection of two tangents or two secants is,

Angle formed by two tangents = \frac{1}{2}(\text{Difference of intercepted arcs})

                                                   = \frac{1}{2}(220-140)

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9). Following the same rule as above,

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125 = \frac{1}{2}[m(\text{major arc})-m(\text{minor arc})]

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250 = m(arc ZWY) - 55

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Therefore, measure of arc ZWY = 305° will be the answer.

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4 0
3 years ago
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