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2 years ago

PLS HELP ASAP ILL GIVE BRAINLKEST THANKS

Mathematics

2 answers:

Simora [160]2 years ago

8 0

Question 1:

Answer: (1,2)

2-0 / 1-0 = slope of 2

Question 2:

Answer: (-2,-2)

-3 - (-2) / -3 - (-2)

= -3 + 2 / -3 + 2

= slope of 1

zhannawk [14.2K]2 years ago

3 0

Answer:

first question is (1,2)

second question is (-2,-2)

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two bicycle riders start from the same point and ride in opposite directions. one rider is moving twice as the other. in 3 hours

Likurg_2 [28]

Step-by-step explanation:

let X = speed of slow bicycle rider

2x=speed of fast bicycle rider

3(x+2x)=72

X=8mph(slowest bicycle rider)

2x=16mph(fastest bicycle rider)

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3 years ago

Suppose on a certain planet that a rare substance known as Raritanium can be found in some of the rocks. A raritanium-detector i

aleksandrvk [35]

Answer:

0.967 = 96.7% probability the rock sample actually contains raritanium

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Positive reading

Event B: Contains raritanium

Probability of a positive reading:

98% of 13%(positive when there is raritanium).

0.5% of 100-13 = 87%(false positive, positive when there is no raritanium). So

$P(A) = 0.98*0.13 + 0.005*0.87 = 0.13175$

Positive when there is raritanium:

98% of 13%

$P(A) = 0.98*0.13 = 0.1274$

What is the probability the rock sample actually contains raritanium?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.1274}{0.13175} = 0.967$

0.967 = 96.7% probability the rock sample actually contains raritanium

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3 years ago

What is the best name to describe an object that has four right angles, the opposite sides are parallel, and it has four equal s

MAXImum [283]

Answer:

D-Square

Step-by-step explanation:

That describes a square, so the answer a square.

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3 years ago

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rusak2 [61]

C' ( 4, -2 )

this is the explanation sort of

c ( -2, -3 ), since it is translated six units to the right, add 6 to the x-coordinate and since it is translated one unit up, add 1 to the y-coordinate

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3 years ago

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Determine if the two triangles are congruent. if they are, state how you know.

kicyunya [14]

Yea they are cuz they have the same side and angle measurements

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2 years ago

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