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2 years ago

Answer #2 for me ! Show proof and explain , i'll mark brainliest

Mathematics

1 answer:

blagie [28]2 years ago

8 0

Answer:

x:10,13, 14,16,18

y:0, 1.5, 2, 3,4

Step-by-step explanation:

I graphed the function, and these were the x and y vertices

Hope this helps please mark brainliest :)

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suppose you toss a coin 100 times and get 60 heads and 40 Tails based on these results what is the probability that the next fli

8_murik_8 [283]

It is stil half becuase the real probability doesnt change

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3 years ago

Solve x and y 3x-4y=18,9x-2y=12

Rudiy27

Answer:

3x-4y=18

1xy=18

xy=18 ans

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3 years ago

Read 2 more answers

The number 3,456,120 is divisible by which number from 1 to 10

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It is divisible by 1, 2, 3, 4, 5, 6, 8, 10

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3 years ago

A college-entrance exam is designed so that scores are normally distributed with a mean of 500 and a standard deviation of 100.

yawa3891 [41]

Answer:

The probability is 0.003

Step-by-step explanation:

We know that the average $\mu$ is:

$\mu=500$

The standard deviation $\sigma$ is:

$\sigma=100$

The Z-score is:

$Z=\frac{x-\mu}{\sigma}$

We seek to find

$P(x800)$

For P(x>800) The Z-score is:

$Z=\frac{x-\mu}{\sigma}$

$Z=\frac{800-500}{100}$

$Z=3$

The score of Z = 3 means that 800 is 3 standard deviations from the mean. Then by the rule of the 8 parts of the normal curve, the area that satisfies the conficion of 3 deviations from the mean has percentage of 0.15%

$P(x>800)=0.15\%$

For P(x<200) The Z-score is:

$Z=\frac{x-\mu}{\sigma}$

$Z=\frac{200-500}{100}$

$Z=-3$

The score of Z = -3 means that 200 is 3 standard deviations from the mean. Then by the rule of the 8 parts of the normal curve, the area that satisfies the conficion of 3 deviations from the mean has percentage of 0.15%

$P(x$

Therefore

$P(x800)=P(x800)$

$P(x800)=0.0015 + 0.0015$

$P(x800)=0.003$

6 0

3 years ago

Solve each system by substitution

Ira Lisetskai [31]

Answer:

1. 2x + 3y =22

y=4

C. (5,4)

2. y=0

-5x - 2y = -15

B. (3,0)

Step-by-step explanation:

2x+(3)(4)=22

Step 1: Simplify both sides of the equation.

2x+12=22

Step 2: Subtract 12 from both sides.

2x+12−12=22−12

2x=10

Step 3: Divide both sides by 2.

2x/2 = 10/2

x=5

====================================================================

−5x−(2)(0)=−15

Step 1: Simplify both sides of the equation.

−5x−(2)(0)=−15

−5x+0=−15

(−5x)+(0)=−15(Combine Like Terms)

−5x=−15

Step 2: Divide both sides by -5.

−5x/−5 = −15/−5

x=3

4 0

3 years ago

Answer #2 for me ! Show proof and explain , i'll mark brainliest​

Answer #2 for me ! Show proof and explain , i'll mark brainliest