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Hitman42 [59]
3 years ago
10

Eloise got the following scores on the first five quizzes of the semester: 6,9,7,8,9. There is one more quiz left. What score mu

st Eloise get on the last quiz to have a mean quiz score of 8? Explain how you found your answer
Mathematics
1 answer:
elena55 [62]3 years ago
5 0

Answer:

9

Step-by-step explanation:

when u add her past five scored together, you get 39. your equation would be

39 + x

-------------         = 8

6

you multiply both sides by 6 and get

39+x = 48

subtract 39 from both sides to get 9

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PLEASE HELP ME WITH THESE QUESTIONS PLEASE HELP ME FIGURE THEM OUT PLZ
AleksandrR [38]

Answer: f(-6) = -\frac{12}{11}, f(-4) = \frac{4}{3}, f(6) = \frac{12}{11}

<u>Step-by-step explanation:</u>

#1 - 7 and 9 are correct but 8 is wrong:

f(x) = \frac{2x}{x^{2}-25}

f(-6) = \frac{2(-6)}{(-6)^{2}-25}

      = \frac{-12}{36-25}

      = \frac{-12}{11}

f(-4) = \frac{2(-4)}{(-4)^{2}-25}

      = \frac{-8}{16-25}

      = \frac{-12}{-9}

      = \frac{4}{3}

f(6) = \frac{2(6)}{(6)^{2}-25}

      = \frac{12}{36-25}

      = \frac{12}{11}

*********************************************************************************************

Your answers on the last page are correct

7 0
3 years ago
Ken is thinking of a number. Nine more than the product of 4 and the number is 73. Find Ken number
Sliva [168]
----------------------------------------
Define x :
----------------------------------------
Let the number be x.

----------------------------------------
Construct equation:
----------------------------------------
<span>Nine more than the product of 4 and the number is 73
</span>⇒4x + 9 = 73

----------------------------------------
Solve for x:
----------------------------------------
4x + 9 = 73
4x = 73 -9
4x = 64
x = 16

----------------------------------------
Answer: Ken's number is 16.
----------------------------------------
7 0
3 years ago
Baby Smiley has curly hair, but neither of her parents does! Is this possible? Create a Punnett square to help you find your ans
Mashutka [201]

Answer:

Usually there should only be 4 squares, but I SHALL HELP YOU

Step-by-step explanation:

(You may know this)

For Baby Smiley to have curly hair, both of her parents would have to have heterozygous for straight hair. So Baby Smiley has a 1 in 4 chance/ 25% chance of curly hair.

so this should be the answer:

S          S         s

s       \left[\begin{array}{ccc}SS&Ss&\\Ss&ss\end{array}\right]

4 0
3 years ago
Read 2 more answers
Sophie bought a water fountain for her cat. The fountain holds 55 fluid ounces of water. To fill it, Sophie uses a jar that hold
mr_godi [17]

Answer:

3.4375

Step-by-step explanation:

One pint = 16 fluid ounces

55 ÷ 16 = 3.4375

(So basically a bit more than 3)

7 0
2 years ago
The Venn diagram shows the results of two events resulting from rolling a number cube.
lorasvet [3.4K]

Answer:

Option B.

Step-by-step explanation:

From the given venn diagram it is clear that

A={1,2}

B={1,2,3,4,5,6}

A\cap B={1,2}

Since the intersection of A and B is non-empty, therefore by conditional probability

P(B|A)=\dfrac{P(A\cap B)}{P(A)}

P(B|A)\cdot P(A)=P(A\cap B)

P(A\cap B)=P(B|A)\cdot P(A)

Therefore, the correct option is B.

8 0
3 years ago
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