2 years ago

John completes a long distance run at an average speed of 8.5 miles per hour. if it takes him 6 hours, how far did he run?

Mathematics

1 answer:

anygoal [31]2 years ago

4 0

Fifty One miles is correct

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One number is 9 times a first number. a third number is 100 more than the first number. if the sum of the three numbers is 727,

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First number: 57
Second number: 513
Third number: 157

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3 years ago

Mrs. smith has 5 times as many markers and colored pencils is 54.How many markers does mrs. smith have

Vilka [71]

Answer:

The answer is 270

Step-by-step explanation:

5×54=270

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2 years ago

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A model airplane has a length of 15in and a width of 9in. If that actual airplane is going to be 65 feet long, how wide is the a

Vaselesa [24]

The answer would be C.

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2 years ago

Rearrange so that there is no zero or negative exponent. 2m^0 n^-4

uranmaximum [27]

Answer:

2/n^4

Step-by-step explanation:

Anything to the zero power will become 1 so the m^0 will be 1 and that leaves just 2 in its place. Anything to a negative exponent is equal to its reciprocal so n^-1= 1/n^4. Then you multiple what remains, (2 x 1/n^4) to get the above answer.

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3 years ago

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Given a term in a geometric sequence and the common ratio, find the explicit formula, a11=5120 ans r=-2

sweet-ann [11.9K]

Answer:

$U_n=5(-2)^{n-1}$

Step-by-step explanation:

Given a geometric sequence, the nth term of the geometric sequence is obtained by using the formula:

$U_n=ar^{n-1}$

If the eleventh term, $a_{11}=5120$

and the common ratio, r=-2.

Then:

$5120=a(-2)^{11-1}\\a=\frac{5120}{2^{10}} =5$

The explicit formula for the sequence is:

$U_n=5(-2)^{n-1}$

5 0

2 years ago