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2 years ago

Luis draws 1 card from a deck, 39 times. predict how many times he draws an ace.

Mathematics

1 answer:

anyanavicka [17]2 years ago

4 0

He would draw 3 aces

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Which answer choice best represents 3/15?

uysha [10]

Uhh... what are the options?

Here's some possible ones:

0.2

1/5

4 0

2 years ago

Read 2 more answers

The fracture strength of tempered glass averages 14.1 (measured in thousands of pounds per square inch) and has standard deviati

ololo11 [35]

Answer:

0.15866 is the probability of the average fracture strength of selected 100 pieces of glasses that of exceed 14.3.

Step-by-step explanation:

Given that, the strength of a tempered(x) a glass has average 14.1 and has standard deviation 2.

$\mu_x=14.1$ , $\sigma_x=2$

n=number of selected pieces= 100.

The probability that the average fracture strength of 100 pieces of this glass exceed 14.3 is

$P(\overline X>14.3)=P(\frac{\overline X-\mu_x}{2/\sqrt n}>\frac{14.3-14.1}{2/\sqrt{100}})$

$=P(\overline X>1)$

$=1-P(\overline X\leq 1)$

= 1 - 0.84134

=0.15866.

3 0

2 years ago

What will be the result of substituting 2 for x in both expressions below?

Thepotemich [5.8K]

It’s the first answer, both expressions equal 5 when substituting 2 for x because the expressions are equivalent.

1/2 of x +4
=1/2(2)=1.
1+4= 5

2+6=8
1/2(2)=1.
8-1=7
7-2=5

8 0

2 years ago

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Y=−2x+7 y=5x−7 x= y=

WINSTONCH [101]

Answer:

x = 2

y = 3

Explanation:

3 0

1 year ago

What is the range of the function y = 2sin X?

ruslelena [56]

Answer:

Range: [-2, 2] {y | -2 ≤ y ≤ 2}

Step-by-step explanation:

The given function is y = 2sinx

We have to find the range of the given function.

Since at y-axis sine function has the variance between -1 to 1 so range of y = sinx is [-1, 1]

and if the amplitude of sine function is 2 then sine function will vary from -2 to 2 which implies that range of y = 2 sinx will be [-2, 2]

So range of y = 2sinx is [-2, 2]

7 0

1 year ago