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2 years ago

7

American car makers produce 5,650,000 cars each year. In a report, Ben wrote that Americans made 6,550,000 cars. What mistake di

d Ben make? How can he fix it? Find the error.

1 answer:

Degger [83]2 years ago

3 0

Ben wrote the number for the hundred thousands place in the millions place

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The product 3 and a number x is 2/3. What is the value of x? A. X=7/3 B. x=2/9 C. x=2 D. X= 2 1/3

BabaBlast [244]

Answer:

the answer is C.

Step-by-step explanation:

3(2/3)

=3×2/3

=2×3/3

=2

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3 years ago

Solve the following inequality.45 < 9(x + 3) < 153

oksian1 [2.3K]

In order to solve this inequality, we can do the following steps:

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Sophie [7]

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2 years ago

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Sarah is doing research on the average age of first-year resident physicians. She wants her estimate to be accurate to within 1

WINSTONCH [101]

Answer: The number of first-year residents she must survey to be 95% confident= 263

Step-by-step explanation:

When population standard deviation ( $\sigma$ ) is known and margin of error(E) is given, then the minimum sample size (n) is given by :-

$n=(\dfrac{z^*\sigma}{E})^2$ , z* = Two-tailed critical value for the given confidence interval.

For 95% confidence level , z* = 1.96

As, $\sigma$ = 8.265, E = 1

So, $n= (\dfrac{1.96\times8.265}{1})^2 =(16.1994)^2\\\\= 262.42056036\approx263\ \ \ [\text{Rounded to the next integer}]$

Hence, the number of first-year residents she must survey to be 95% confident= 263

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2 years ago

Which values are solutions to the inequality below ×<9

iragen [17]

Answer: theres not a picture soo idk

Step-by-step explanation:

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3 years ago