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3 years ago

What is the 77th term?

Mathematics

1 answer:

Tanzania [10]3 years ago

6 0

The sequence for the nth term is (6n+6)+1
Hence the 77th term would be
( 6(77) + 6 ) + 1
=469

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Grades in large classes are sometimes approximately Normally distributed—a fact that serves as the justification for "grading on

QveST [7]

Answer:

Grade A: $Z \geq 1$

Grade B: $0 \leq Z < 1$

Grade C: $-1 \leq Z < 0$

Grade D: $Z < -1$

Step-by-step explanation:

Problems of normally distributed samples can be solved using the Z score table.

The Z score of a measure represents how many standard deviations it is above or below the mean of all the measures.

Each Z score has a pvalue. This represents the percentile of the measure.

In this problem, we have that:

The upper 16% of the class get A grades. The upper 16% has a pvalue of at least 100% = 16% = 84% = 0.84. This is $Z \geq 1$ .

The middle 34% of the class get B grades. The middle 34% has a pvalue of at least 84%-35% = 50% = 0.5 and at most 0.84. This is $0\leqZ < 1$ .

Those between a pvalue of 0.5-0.34 = 0.16 and 0.5 get get grade C. $Z = -1$ has a pvalue of 0.16. So a grade C is in the interval $-1 \leq Z < 0$ .

Those with Z lesser than -1 get grades D and F

6 0

3 years ago

Formula is (a^2+b^2)/ab+1

zalisa [80]

Ab -6 = i hope this helps you

6 0

4 years ago

In two or more complete sentences, describe the transformation(s) that take place on the parent function, f(x) = log(x), to achi

lubasha [3.4K]

Answer:

Shift 2 unit left

Flip the graph about y-axis

Stretch horizontally by factor 2

Shift vertically up by 2 units

Step-by-step explanation:

Given:

Parent function: $f(x)=\log x$

Transformation function: $f(x)=\log(-2x-4)+2$

Take -2 common from transform function f(x)

$f(x)=\log[-2(x+2)]+2$

Now we see the step-by-step translation

$f(x)=\log x$

Shift 2 unit left ( x → x+2 )

$f(x)=\log(x+2)$

Flip the graph about y-axis ( (x+2) → - (x+2) )

$f(x)=\log[-(x+2)]$

Stretch horizontally by factor 2 [ -x(x+2) → -2(x+2) ]

$f(x)=\log[-2(x+2)]$

Shift vertically up by 2 units [ f(x) → f(x) + 2 ]

$f(x)=\log[-2(x+2)]+2$

Simplify the function:

$f(x)=\log(-2x-4)+2$

Hence, Using four step of transformation to get new function $f(x)=\log(-2x-4)+2$

3 0

3 years ago

Read 2 more answers

Adelaide paid $35 for a manicure and gave the manicurist a 20% tip How much money did Adelaide give her manicurist

seropon [69]

The correct answer is:
$42.

Explanation:
The best way to find a total bill including tip (or tax if that is what you are looking for - it is found the same way), is to multiply the original total by 1 + the percentage of the tip.

Since the percentage is 20%, we add 0.20 to 1 to get 1.20.
Now we multiply that by the original cost to get the final answer.
1.20*35 = 42

3 0

3 years ago

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Each friend received 5/4 of a pound of berries, how many friends are sharing berries?

Rudiy27

Answer:

Step-by-step explanation:

If 5 friends are sharing the berries, how many pounds of berries does each friend receive? Is the answer to 3/4 divided by 2/5 greater than or less than 1.

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3 years ago