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3 years ago

9

On a recent 250-mile trip, Felicia averages 50 mph over the first 125 miles. What should be her average speed for the second hal

f of her trip, if she wants to average 60 mph over the whole trip?

1 answer:

Alik [6]3 years ago

4 0

Nun, die durchschnittliche Geschwindigkeit ist mehr als genau 65 Meilen pro Stunde

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If the third term in a geometric sequence is 20, and the fifth term in the

Gwar [14]

Answer: A) 1/2

Step-by-step explanation:

In a geometric sequence, the consecutive terms differ by a common ratio. The formula for determining the nth term of a geometric progression is expressed as

Tn = ar^(n - 1)

Where

a represents the first term of the sequence.

r represents the common ratio.

n represents the number of terms.

If the third term is 20, it means that

T3 = 20 = ar^(3 - 1)

20 = ar²- - - - - - - - - - 1

If the third term is 20, it means that

T5 = 5 = ar^(5 - 1)

5 = ar⁴- - - - - - - - - - 2

Dividing equation 2 by equation 1, it becomes

5/20 = r⁴/r²

1/4 = r^(4 - 2)

(1/2)² = r²

r = 1/2

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3 years ago

Move the slider on the graph on the right to graph each function:

DedPeter [7]

Answer:

The domain is $x\geq 7$

The range is $y\geq 1$

Step-by-step explanation:

we have

$y=\sqrt{x-7} +1$

<em>Find the domain</em>

Remember that

The domain of a function is the set of all possible values of x

we know that the radicand of the function must be greater than or equal to zero

so

$x-7\geq 0$

solve for x

$x\geq 7$

therefore

The domain is $x\geq 7$

<em>Find the range</em>

Remember that

The range of a function is the complete set of all possible resulting values of y, after we have substituted the domain.

For x=7

The value of y is equal to

$y=\sqrt{7-7} +1=1$

so

The solution for y is the interval [1,∞)

therefore

The range is $y\geq 1$

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Answer:

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Step-by-step explanation:

2 7/8 + 3 2/8 * 1 1/8 = 7.25

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Their were six slices of pie left, and then john took 1/5 of them. how much pie is left?

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Vesnalui [34]

405miles÷15gallons=27miles

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