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3 years ago

Help help help me please

Mathematics

1 answer:

spayn [35]3 years ago

8 0

Answer:

$A$ ≈ $80.03$

Step-by-step explanation:

I used the equation $A=$ π $r(r+h^{2}+r^{2})$ to find the surface area

i hope this helps

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Determine the common difference between successive terms in the sequence.

Ymorist [56]

This is an arithmetic sequence....to find the common difference, subtract the first term from the second term
0.26 - 0.36 = - 0.10.....so the common difference is -0.10. That means u add -0.10 to each term to get the next term.

4 0

4 years ago

Elise randomly surveyed students at her school to find out their favorite music. The table shows the results of Elise's survey.

MaRussiya [10]

Answer:

Umm 125 I guess

Step-by-step explanation:

8 0

3 years ago

The function f(x) = x2 has been translated 9 units up and 4 units to the right to form the function g(x). Which represents g(x)?

Alenkinab [10]

For this case, the parent function is given by:

$f (x) = x ^ 2$

We apply the following transformations:

Vertical translations:

Suppose that k> 0

To graph y = f (x) + k, move the graph of k units upwards:

For k = 9 we have:

$h (x) = x ^ 2 + 9$

Horizontal translations:

Suppose that h> 0

To graph y = f (x-h), move the graph of h units to the right

For h = 4 we have:

$g (x) = (x-4) ^ 2 + 9$

Answer:

The function g (x) is given by:

$g (x) = (x-4) ^ 2 + 9$

7 0

3 years ago

Read 2 more answers

For the first 30 km, the bicyclist rode with a speed of v km/hour. For the remaining 17 km he rode with a speed which was 2 km/h

damaskus [11]

Answer:

t= 2.52 hours

Step-by-step explanation:

It is given that for first 30 km, the speed of bicyclist is v km/hour

time taken to cover first 30 km is given by

$t_{1} =\frac{30}{v}$ ( $time=\frac{distance}{speed}$ )

for next 17 km the speed of bicyclist is 2 km/hour greater than his original speed

so the speed to cover next 17 km = v+2

time taken to cover next 17 km is given by

$t_{2} =\frac{17}{v+2}$

now total time t spent by the bicyclist to cover entire trip is given by

$t=t_{1} +t_{2}$

$t=\frac{30}{v} +\frac{17}{v+2}$

now if v=18 , we have

$t=\frac{30}{18} +\frac{17}{20}$

now to add fractions we make the denominator same

Hence we will find the LCM of 18 and 20

LCM of 18 and 20 = 180

now we need to make both the denominator equal to 180

$t=\frac{30(10)}{18(10)} +\frac{17(9)}{20(9)}$ $t=\frac{300}{180} +\frac{153}{180} =\frac{300+153}{180}$

$t=\frac{453}{180} =2.52$ hours (approx)

7 0

3 years ago

I need help on this please I will mark brainliest to first correct answer

viktelen [127]

Answer:

The answer is C. (1, -3)

8 0

3 years ago