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dangina [55]
3 years ago
13

What are the values of a and b?

Mathematics
1 answer:
Leona [35]3 years ago
3 0

Answer:

<h2>          A.   \bold{a=\dfrac92\ ,\quad b=\dfrac{15}2}</h2>

Step-by-step explanation:

The segment 6 is dividing the large triangle to similar triangles, so:

\dfrac a6=\dfrac b{10}=\dfrac68

Therefore:

\dfrac a6=\dfrac68\\\\8a=36\\\\a=\dfrac{36}8=\dfrac92            and            \dfrac b{10}=\dfrac68\\\\8b=60\\\\b=\dfrac{60}8=\dfrac{15}2

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95 - 73= 22; She needs $22.

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An instructor who taught two sections of engineering statistics last term, the first with 20 students and the second with 30, de
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Answer:

(a) P(X=10) = 0.2070

(b) P(X\geq 10) = 0.3798

Step-by-step explanation:

Note that in this problem we have an initial population N = 50, of which 30 fulfill a certain characteristic "m" (belong to the second section). Then, from the population N, a sample of size n = 15 is selected and it is desired to know how many comply with the desired characteristic (second section).

So

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(a)

Therefore, to answer question (a) we use the following equation presented in the attached image:

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Then:

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(b)

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3 years ago
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Step-by-step explanation:

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1 year ago
There is a Picture below
Veseljchak [2.6K]
1a. 0.05
1b. 100
1c. 0.5
1d. 50
2. Not sure if this is right but 0.5 divides by 0.05 to get the middle number
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3 years ago
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