MATHEMATICS MIDDLE SCHOOL

Jerry makes coffee tables to sell in a furniture shop. The length of each table is n+8 inches and the width is 1/2n - 4 inches. If n=42, what are the measurements of the length and width of each coffee table?

Answers

Answer 1
Answer:

Answer: L = 50 while W = 17

Step-by-step explanation:

So, n=42

L = n + 8

L = 42 +8

L = 50

W = n/2 - 4

W = 42/2 - 4

W = 21 - 4

W = 17
Answer 2
Answer: L=n+8=42+8=50
W=1/2n-4=21-4=17
The measurements are 50x17

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Find an explicit rule for the nth term of a geometric sequence where the second and fifth terms are -36 and 2304, respectively.

Answers

When we find a geometric sequence using the first and second terms, what we do is divide the second by the first to find a "common ratio," the number you multiply by to get to the next term.

In this case, we only have the second and fifth terms. From the second to the fifth term, we've multiplied by that common ratio three times.
What we can do is divide the fifth by the second and then take the cube root to find our common ratio.

2304/-36=-64\n\sqrt[3]-64=\boxed{-4}

Now we know we're multiplying by -4 each time, let's find the first term.

The opposite of multiplying by -4 would be dividing by -4. We work back from our second term -36 to find that the first term would be 9.

For each sucessive term, we then multiply by -4.

Our equation is a_n=9*-4^((n-1))

How can can you solve -16+23-

Answers

Remember that a negatve + a negative = a posative.

so -16 + -23=
16 + 23 =39

A function f(x) is defined as f(x) = −8x^2. What is f(−3) ?F.−72
G. 72
H. 192
J.−576
K. 576

Answers

f(-3) = -8(-3)²
       = -8(9)
       = -72
Hence the answer is F
f(-3)=-8\cdot(-3)^2=-8\cdot9=-72

genie has 30 pennies, witch is 5 times more than the 6 dimes he has. 30 is 5 times as many as 6. write an equation to match this comparison sentence.

Answers

6*5=30
Because there's a total of 30 pennies, 6 multiplied by 5 times the amount of dimes would also equal 30.

Claire walked 2 2/5 miles. Jason walked 2/3 as far as Claire. How many miles did Jason walk?

Answers

Answer:

Step-by-step explanation:

1486

Answer:

Step-by-step explanation:

1486

A teacher surveyed his class about how many wore watches and how many wore rings. The Venn diagram shows her results. If a person from the class is randomly selected, what is the probability that person wears a watch given that they wear a ring? P( watch | ring )

A. 7/12
B. 1/6
C. 1/12
D. 2/7
URGENT PLEASE HELP

Answers

I think it’s C I hope that helps

Answer:

Step-by-step explanation:

Person who wears a watch + ring

Lets say the fraction of people wearing the rings is 1/X

Lets say the fraction of people wearing a watch is 2/y

The formula is multiplication for both (Key words: and)

The formula is add for one or the either (key words: or)

The question says that person wears a watch given that they wear a ring

It mean that they wear a watch + a ring.

THat mean multiplication!

Lets use the example: 1/x · 2/y = 2/xy

This makes 2/xy your answer for the example.

Now lets do another example:

Lets say the fraction of people wearing the rings is 1/3

Lets say the fraction of people wearing a watch is 2/3

Multiplication!!!!

1/3 x 2/3 = 2/9

This makes 2/9 your answer to this example!!!!

Hope I helped a lot!!!!!!!!!!!!!!!!!!
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