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Alexxx [7]
3 years ago
14

A container contains 10 diesel engines. the company chooses 8 engines at​ random, and will not ship the container if any of the

engines chosen are defective. find the probability that a container will be shipped even though it contains 2 defectives if the sample size is 8.
Mathematics
1 answer:
lions [1.4K]3 years ago
7 0

Answer:

16/25

Step-by-step explanation:

We just have to find the probability that the 8 non-defects are chosen.

1. Chance first defect is undetected: 8/10 = <em>4/5</em>

2. Chance second defect is undetected: <em>4/5</em>

3. Total probability': 4/5 * 4/5 = 16/25

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Gnesinka [82]
Difference would be that is a diameter is double a radius and a radius is half of a diameter.
A similarity would be that they would are within a circle and touch the center of circle
5 0
3 years ago
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Can any one help me with these 2 plsss :/
Pepsi [2]

Answer:

6) f=45

7) r=57

Step-by-step explanation:

the angles of a triangle will always add up to 180 degrees. Therefore, for the first one the three inside angles have to be 30, 15, and 135. If 135 is the supplementary angle to f, 45 must be the degree of f.

Same idea for the second one. 180-143=37. so 37+86+r=180. solve for r to get 57.

8 0
3 years ago
Combine like terms to create an equivalent expression.
Juli2301 [7.4K]
<h2>Answer:</h2>

\boxed{15.4z-12}

<h2>Explanation:</h2>

Here we have the following expression:

7.4z-5(-1.6z+2.4)

We combine like terms in order to simplify expression. To do so, we combine terms with the same variable and exponents. In this exercise, let's apply distributive property first:

7.4z-5(-1.6z)-5(2.4) \\ \\ Remember \ these \ rules: \\ \\ (+)(+)=+ \\ \\ (-)(-)=+ \\ \\ (-)(+)=+ \\ \\ (+)(-)=- \\ \\ \\ So: \\ \\ 7.4z+8z-12 \\ \\ \\ Combining \ like \ terms \ 7.4z \ and \ 8z: \\ \\ \boxed{15.4z-12}

4 0
3 years ago
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25y=15y+75 solve for y
MAXImum [283]

Answer:

y=7.5

Step-by-step explanation:

25y -15y =75

10y=75

y=7.5

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6 0
2 years ago
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2,7, 12, ...<br> Find the 46th term.
Alex787 [66]

Given is an A.P. in which -

  • First term,a = 2
  • Common difference = Second term - First term

\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad = a_2-a_1

\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad = 7-2

\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad = 5

<h3><u>Solution:- </u></h3>

nth term of an A.P ,is given by-

\green{ \underline { \boxed{ \sf{a_n =a+(n-1)d }}}}

where

  • a_n = nth \;term
  • a = first term
  • n = number of term
  • d = common difference

Putting n = 46

\begin{gathered}\\\implies \sf a_{46}= 2 + (46-1)\times 5  \\\end{gathered}

\begin{gathered}\\\implies \sf a_{46}= 2 + 45\times 5  \\\end{gathered}

\begin{gathered}\\\implies \sf a_{46}= 2 + 225  \\\end{gathered}

\begin{gathered}\\\implies \sf a_{46}= 227 \\\end{gathered}

\longrightarrowTherefore, the 46th term is 227

7 0
2 years ago
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