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3 years ago

Ethan writes

Mathematics

2 answers:

Alex_Xolod [135]3 years ago

8 0

A
1/3 is equal to .33333333333 (which 3 repeats forever)
I hope this helped!

scoray [572]3 years ago

7 0

The answer is a. i totally didn’t copy the other person

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Logb a=E means the same as <br> E^a = b<br> b^a = E<br> b^E = a<br> E^b = a

polet [3.4K]

Step-by-step explanation:

log b base a=E

b=a^E

but if your question is

log a base b=E

then we have it as

a=b^E

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3 years ago

Saeed bought 21 1/2 Ib of ground beef. He used 1/4 of the beef to make tacos and 2/3 of the remainder to make quarter-pounder bu

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Answer:

the answer should be 30 burgers.

Step-by-step explanation:

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4 years ago

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4.15 * 7 = 29.05

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3 years ago

An English professor assigns letter grades on a test according to the following scheme. A: Top 5% of scores B: Scores below the

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Answer:

Grade D score:

$69 \leq x \leq 74$

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 78.8

Standard Deviation, σ = 7.1

We are given that the distribution of scores on test is a bell shaped distribution that is a normal distribution.

Formula:

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

D: Scores below the top 77% and above the bottom 9%

We have to find the value of x such that the probability is 0.77

$P( X > x) = P( z > \displaystyle\frac{x - 78.8}{7.1})=0.77$

$= 1 -P( z \leq \displaystyle\frac{x - 78.8}{7.1})=0.77$

$=P( z \leq \displaystyle\frac{x - 78.8}{7.1})=0.23$

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

$\displaystyle\frac{x - 78.8}{7.1} =-0.739\\\\x = 73.55$

We have to find the value of x such that the probability is 0.09

$P(X < 0.09) = \\\\P( X < x) = P( z < \displaystyle\frac{x - 78.8}{7.1})=0.09$

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

$\displaystyle\frac{x - 78.8}{7.1} = -1.341\\\\x = 69.27$

Thus, the numerical value of score to achieve grade D is

$69 \leq x \leq 74$

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3 years ago

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4 years ago