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o-na [289]
4 years ago
12

A factory makes car batteries. The probability that a battery is defective is a

Mathematics
1 answer:
Tamiku [17]4 years ago
7 0

Answer: 29

Step-by-step explanation:

Heer is the complete question:

A factory makes car batteries. The probability that a battery is defective is 1/14. If 400 batteries are tested, about how many are expected to be defective?

A) 14

B) 371

C) 29

D)35

Probability that a battery is defective = 1/14

Number of batteries tested= 400

Expected number of defective batteries= Probability that a battery is defective × Number of batteries tested

= 1/14 × 400

= 400/14

= 28.57

= 29 Approximately

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A survey was conducted to study the relationship between a college student's age and the value of the car they drive. Data were
ludmilkaskok [199]

Answer:

Q1 A Scatter plot. Q2

Step-by-step explanation:

Q1. We have a data set containing values of car and age group, if we plot value of the car on y-axis and the age on x, it is logical that two different age groups can own a care with same value, so we can have two values on x corresponding to one value on the y-axis, if we can use scatter plot to visually depict this data.

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3 years ago
What’s The Answer Of This? Please Answer ASAP
Radda [10]

Answer: 67 degrees

Step-by-step explanation:

4 0
2 years ago
A store marks up all of their merchandise by 70%. The floor price of a scarf is $117.25.
KiRa [710]

Answer:

  $68.97

Step-by-step explanation:

Markup is the difference between the cost of an item and the price at which it is sold:

  cost price + markup = selling price

Here, the markup is said to be 70%. The base for that percentage can be either the cost price or the selling price. The way this question is worded suggests the markup is 70% of the cost price.

So, we have ...

  cost price + 0.70 × cost price = selling price

or

  cost price × (1 + 0.70) = selling price

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Then, to find the cost price, we can divide by its coefficient in this equation. Doing that gives ...

  cost price = (selling price)/1.70

  cost price = $117.25/1.70 = $68.97

The store's purchase price before the markup for this item was $68.97.

4 0
3 years ago
If (12^5)^6=12^a, what is a <br><br> A=
dedylja [7]
So first simplify
(12^5)^6=(12^5)(12^5)(12^5)(12^5)(12^5)(12^5)
remember
if
(x^n)^m=x^nm
so
(12^5)^6=12^(5 times 6)=12^30

so 12^30=12^a
so a=30
3 0
4 years ago
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The following points were added to the grid below.
il63 [147K]

Answer:

C,A,B,D

Step-by-step explanation:

5 0
3 years ago
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