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amm1812
3 years ago
8

Need help with 9-12 plzzzzz

Mathematics
2 answers:
Oduvanchick [21]3 years ago
6 0
The answer to this question is -3.
Vladimir79 [104]3 years ago
4 0
Hi Lexia it's Aliyah
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The scale on a map is 1in.=20mi. if the distance between two cities on the map is 2.5 inches how far apart are the actual cities
wlad13 [49]

Answer:

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░░░▌░▄▄▄▐▌▀▀▀░░ This is Bob

▄░▐░░░▄▄░█░▀▀ ░░

▀█▌░░░▄░▀█▀░▀ ░░ Copy and paste him so he can take over brainly.

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Step-by-step explanation:

7 0
3 years ago
A triangle has base 2x and height x – 3. The area of the triangle is 10 square inches.
Soloha48 [4]

Answer: im not sure sorry

Step-by-step explanation:

4 0
3 years ago
The largest jaw breaker in a store is spherical with a radius of 2 in, and sells for $4.00. A
maw [93]

Answer:

$36

Step-by-step explanation:

1. Determine the surface area of the  largest jaw breaker

Surface area of a sphere = 4πr²

4 x 3.14 x 2² = 50.24in²

2. Determine the surface area of the new jaw breaker

4 x 3.14 x 6² = 452.16 in²

3. Determine the cost per area

4/ 50.24

4. Determine the price for the new jaw breaker

4/ 50.24 x 452.16 = $36

5 0
3 years ago
two technicians regularly make repairs when breakdowns occur on an automated production line. the first technican, who services
xxMikexx [17]

Answer:

52.63% probability that thids intial repair was made by the first technican

Step-by-step explanation:

Bayes Theorem:

Two events, A and B.

P(B|A) = \frac{P(B)*P(A|B)}{P(A)}

In which P(B|A) is the probability of B happening when A has happened and P(A|B) is the probability of A happening when B has happened.

In this question:

Event A: Incomplete repair

Event B: Made by the first technican.

The first technican, who services 40% of the breakdowns, has 5% chance of making incomplete repair.

This means that P(B) = 0.4, P(A|B) = 0.05.

Probability of an incomplete repair:

5% of 40%(first technican) or 3% of 60%(second technican). So

P(A) = 0.05*0.4 + 0.03*0.6 = 0.038

Given that there is a problem with the production line due to an incomplete repair, what is the probability that thids intial repair was made by the first technican

P(B|A) = \frac{0.4*0.05}{0.038} = 0.5263

52.63% probability that thids intial repair was made by the first technican

8 0
4 years ago
The ___ is the average value of a set of numerical data, found by adding all the
Rudik [331]

Answer:

mean

Step-by-step explanation:

3 0
4 years ago
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