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3 years ago

Write answer in scientific notation

Mathematics

1 answer:

qwelly [4]3 years ago

4 0

Answer:

$5 \times {10}^{7}$

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What is 12(6+9m) simplified

Alex

Answer:

12(6+9m)

therefore we multiple the 12 by the numbers in the blaket

72+10m

that's the correct answer

5 0

2 years ago

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A professor at a local university noted that the exam grades of her students were normally distributed with a mean of 73 and a s

Umnica [9.8K]

Answer:

88.51 is the minimum score needed to receive a grade of A.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 73

Standard Deviation, σ = 11

We are given that the distribution of exam grades is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.0793.

$P( X \geq x) = P( z \geq \displaystyle\frac{x - 73}{11})=0.0793$

$= 1 -P( z \leq \displaystyle\frac{x - 73}{11})=0.0793$

$=P( z \leq \displaystyle\frac{x - 73}{11})=0.9207$

Calculation the value from standard normal z table, we have,

$P(z \leq 1.410) = 0.9207$

$\displaystyle\frac{x - 73}{11} = 1.410\\x =88.51$

Hence, 88.51 is the minimum score needed to receive a grade of A.

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2 years ago

Selena's favorite chocolate chip cookie recipe calls for 111 teaspoon of salt for every {2 \dfrac{1}{4}}2

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Answer:

It is deepak's just trust me

Step-by-step explanation:

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2 years ago

If x = 3 and y = 5, what is 3x - 2y?

seraphim [82]

Negative 1 because 3 x 3 is 9 and -2 x 5 is -10. Therefore 9-10= negative 1

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3 years ago

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A group of 10 students participate in chess club, karate club, or neither

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Answer:-0

Step-by-step explanation:

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