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max2010maxim [7]
3 years ago
10

The test scores you end up having in geometry class are 81 and 87. What possible scores can you earn on your next test to have a

test average between 84 and 89​?
Mathematics
2 answers:
Zigmanuir [339]3 years ago
4 0

Answer:

88, 89, 90, 91, 92? idrk

tensa zangetsu [6.8K]3 years ago
4 0

Answer:

A score between 84 and 99

Step-by-step explanation:

First, let's solve for what you would need to score on your next test to have an average of 84:

(81 + 87 + x)/3 = 84

     (168 + x)/3 = 84

          168 + x = 252

                    x = 84

Next, let's solve for what you would need to score on your next test to have an average of 89:

(81 + 87 + x)/3 = 89

     (168 + x)/3 = 89

          168 + x = 267

                    x = 99

That means you would have to earn a score between 84 and 99.

I hope this helped you, and if it did, a brainliest would be appreciated :)

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Volgvan
Ziad is 30 and marc is 10
4 0
3 years ago
According to the National Association of Colleges and Employers, the average starting salary for new college graduates in health
katen-ka-za [31]

Answer:

a) The probability that a new college graduate in business will earn a starting salary of at least $65,000 is P=0.22965 or 23%.

b) The probability that a new college graduate in health sciences will earn a starting salary of at least $65,000 is P=0.11123 or 11%.

c) The probability that a new college graduate in health sciences will earn a starting salary of less than $40,000 is P=0.14686 or 15%.

d) A new college graduate in business have to earn at least $77,133 in order to have a starting salary higher than 99% of all starting salaries of new college graduates in the health sciences.

Step-by-step explanation:

<em>a. What is the probability that a new college graduate in business will earn a starting salary of at least $65,000?</em>

For college graduates in business, the salary distributes normally with mean salary of $53,901 and standard deviation of $15,000.

To calculate the probability of earning at least $65,000, we can calculate the z-value:

z=\frac{x-\mu}{\sigma} =\frac{65000-53901}{15000} =0.74

The probability is then

P(X>65,000)=P(z>0.74)=0.22965

The probability that a new college graduate in business will earn a starting salary of at least $65,000 is P=0.22965 or 23%.

<em>b. What is the probability that a new college graduate in health sciences will earn a starting salary of at least $65,000?</em>

<em />

For college graduates in health sciences, the salary distributes normally with mean salary of $51,541 and standard deviation of $11,000.

To calculate the probability of earning at least $65,000, we can calculate the z-value:

z=\frac{x-\mu}{\sigma} =\frac{65000-51541}{11000} =1.22

The probability is then

P(X>65,000)=P(z>1.22)=0.11123

The probability that a new college graduate in health sciences will earn a starting salary of at least $65,000 is P=0.11123 or 11%.

<em>c. What is the probability that a new college graduate in health sciences will earn a starting salary less than $40,000?</em>

To calculate the probability of earning less than $40,000, we can calculate the z-value:

z=\frac{x-\mu}{\sigma} =\frac{40000-51541}{11000} =-1.05

The probability is then

P(X

The probability that a new college graduate in health sciences will earn a starting salary of less than $40,000 is P=0.14686 or 15%.

<em />

<em>d. How much would a new college graduate in business have to earn in order to have a starting salary higher than 99% of all starting salaries of new college graduates in the health sciences?</em>

The z-value for the 1% higher salaries (P>0.99) is z=2.3265.

The cut-off salary for this z-value can be calculated as:

X=\mu+z*\sigma=51,541+2.3265*11,000=51,541+25,592=77,133

A new college graduate in business have to earn at least $77,133 in order to have a starting salary higher than 99% of all starting salaries of new college graduates in the health sciences.

8 0
3 years ago
Complete the work shown to find a possible solution of the equation.
Andrei [34K]

Answer: the answer is 14

Step-by-step explanation:

4 0
3 years ago
is this answer correct? if not please explain. The question is “The mass of the Eock of Gibraltar is 1.78 • 10 power of 12 kilog
Natalija [7]

Answer:

Step-by-step explanation:

Mass of Antarctic iceberg - Mass of Rock Gibraltar=

= 4.55 * 10^{13} - 1.78 * 10^{12} =  &#10; 45.5 * 10 ^{12}- 1. 78 *  10^{12}= 43.72 *  10^{12} &#10;  

Answer: 43.72 * 10^12 kg

3 0
3 years ago
Write your answer in simplest radical form​
stich3 [128]

Answer:

n=8\sqrt{2}

Step-by-step explanation:

Measure of the angle given in the right triangle = 60°

Measure of the side opposite to the given angle = 4√6

Measure of hypotenuse = n

Therefore, we will apply the sine rule to get the measure of n,

sin(60°) = \frac{\text{Opposite side}}{\text{Hypotenuse}}

\frac{\sqrt{3}}{2}=\frac{4\sqrt{6}}{n}

n=\frac{8\sqrt{6} }{\sqrt{3} }

n=8\sqrt{2}

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2 years ago
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