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3 years ago

6

HELP FOR 7 AND 8 Pleaseeeee

1 answer:

kati45 [8]3 years ago

4 0

I believe the answer to 7 would be;
B. 64 cm

This is was a guess. My reasoning is 8(6) =48 and 8(10)=80, so the number in between would be 64.

Another train of thought was the number in the middle of 6 and 10 is 8 and 8(8) = 64
6, 7, 8, 9, 10
X, X, • , X, X

I believe the answer to 8 would be;
C. 82.5 in

Following the equation, you would multiply 15 and 11 the divide the product by two

15(11)=165
165/2=82.5

Please correct me if I am wrong and have a good day!

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3 years ago

A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtain

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3 years ago

What is three squared minus two thirds?

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1 year ago

The 17th term of an Arithmetic sequence is 51. If the commons difference is 7, what is the first term ?

vovikov84 [41]

Answer:

The first term is:

$a_1=-61$

Step-by-step explanation:

The arithmetic sequence is defined by

$a_n=a_1+\left(n-1\right)d$

where

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$d$ is the common difference

as

the 17th term of an arithmetic sequence is 51.

i.e. $a_{17}=51$

so

$a_n=a_1+\left(n-1\right)d$

$a_{17}=a_1+\left(17-1\right)d$

$51=a_1+\left(17-1\right)7$ ∵ $n = 17$ , $a_{17}=51$ , $d=7$

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$a_1=-61$

Therefore, the first term is:

$a_1=-61$

8 0

2 years ago

How many cylindrical can of bottles 12 cm high and with 6 cm diameter could be filled from a tank containing 125 liters of deter

Orlov [11]

Answer:

368 cans.

Step-by-step explanation:

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So V = π * 3^2 * 12

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Number of cans that could be filled = 125000/ 108 π

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4 0

3 years ago

Read 2 more answers