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Tomtit [17]
3 years ago
9

) 20% of computer chips from a certain manufacturer are defective. if 100 computer chips are purchased, what is the approximate

probability that at least 20 of them are defective
Mathematics
1 answer:
Furkat [3]3 years ago
4 0
100%. 20/100 is equivalent to 20%, and because there is a 20%  chance of a chip being a defect, it is 100%
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Sara bought 4 pounds
Roman55 [17]

Answer:

$12.80

Step-by-step explanation:

Sara bought 4 pounds of coffee.

Each pound (lb) costs $3.20

To find the total cost, multiply the cost per pound ($3.20) with the amount of pounds Sara is going to buy (4):

4 x 3.20 = $12.80

$12.80 would be the total cost before tax.

~

3 0
4 years ago
Read 2 more answers
In the figure below, angle y and angle x form vertical angles. Angle y forms a straight line with the 60° angle and the 70° angl
Lynna [10]
The answer is 50 I believe
4 0
3 years ago
Mark all the statements that are true.
Artyom0805 [142]

Answer:

Option A

Option C

Step-by-step explanation:

A relationship is defined as a function if and only if each element of the "domain" set is assigned only one element of the "range" set. That is, there is only one output value y assigned to each input value x.

The relation x = 3 is not a function because there are infinite output values y, assigned to the same input element x.

(3, 2), (3, 5) (3, 9) (3,10000)

<u><em>Then the option A is true</em></u>

<em><u>Option C is also true,</u></em> the equation of the line shown is

x = 3

The rest of the options are false because x = 3 is not a function

3 0
3 years ago
50+51+52+...+101=...<br>Can you help me? I do not understand
Dmitriy789 [7]

Suppose

S=50+51+52+\cdots+100+101

At the same time, we can write

S^*=101+100+99+\cdots+51+50

Note that S=S^* (just reverse the sum). Let's pair the first terms of S and S^*, and the second, and the third, and so on:

S+S^*=(50+101)+(51+100)+(52+99)+\cdots+(100+51)+(101+50)

Now, each grouped term in the sum on the right side adds to 151. There are 52 grouped terms on that same side (because there are 50 numbers in the range of integers 51-100, plus 50 and 101), which menas

S+S^*=52\cdot151

But S=S^*, as we pointed out, so

2S=52\cdot151\implies S=\dfrac{52\cdot151}2=3926

5 0
3 years ago
Emma and Kyle combine their eamings to pay their
guapka [62]
<h2>Hello!</h2>

The answer is:

The second option,

b.) C(x)=40.60x+201

<h2>Why?</h2>

We are given the functions E(x) and K(x), since they both are function of the same variable, we need to add them in order to find the correct option.

From the statement we know the functions:

E(x)=22.75x+74

and

K(x)=17.85x+127

So, adding the functions we have:

C(x)=E(x)+F(x)

C(x)=(22.75x+74)+(17.85x+127)

C(x)=22.75x+17.85x+74+127

C(x)=40.60x+201

Hence, the answer is the second option,

b.) C(x)=40.60x+201

Have a nice day!

6 0
3 years ago
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