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3 years ago

Why did I get this wrong?

Mathematics

1 answer:

il63 [147K]3 years ago

3 0

Step-by-step explanation:

12 / x¹⁴ = 12x⁻¹⁴

Integrate using power rule.

-12/13 x⁻¹³

-12 / (13x¹³)

You forgot the negative sign.

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Mark is flying a kite and realizes that 300 feet of string is out. Mark anchored the kite to the ground. The angle of the string

Nadya [2.5K]

Answer:

The kite is 202.7 feet above the ground

Step-by-step explanation:

The scenario is depictedd in the picture attached

we have to find the height.

Trigonometric ratios will be used to find the height.

So,

$sin\ (42.5) = \frac{h}{300}\\ 0.6756=\frac{h}{300}\\0.6756*300=h\\202.68 = h$

The height is 202.68 feet

Rounding off to the nearest tenth

202.7 feet

Therefore, the kite is 202.7 feet above the ground ..

3 0

3 years ago

100 points and brainliest for correct answer!

MatroZZZ [7]

Answer B.

∑fx=1637,∑fx
2
=127663,∑f=21
x
ˉ
=Mean=
∑t
∑fx

=77.95
σ
2
=
∑f
∑fx
2

−(
x
ˉ
)
2
=
21
127663

−(77.95)
2
=2.987
σ=1.728

4 0

1 year ago

which of the following terms best describes the graph of the exponential function given below f(x)=4*5^x

N76 [4]

If i did it right the anwser is 20

4 0

2 years ago

My bed is 3 inches by 2 1/3 by 1/3. what is my volume?

neonofarm [45]

2 1/3. 3 inches by 2 1/3 inches is 7. A 3rd of that is 2 1/3 or 2.3333333333

8 0

3 years ago

Kevin, can clean a stadium in 5 hours working alone. Chris, can

LenaWriter [7]

Answer: It will about 1.88 hours or 1 hour 52.5 minutes to clean the stadium if they work together .

Step-by-step explanation:

Given : Time taken by Kevin to clean a stadium = 5 hours

Rate of work done by Kelvin = $\dfrac{1}{5}$

Time taken by Chris to clean a stadium = 3 hours

Rate of work done by Chris = $\dfrac{1}{3}$

Let t be the time taken by both of them to clean the stadium together.

According to the question , we have

Rate of work done together = Rate of work done by Kelvin+Rate of work done by Chris

$\dfrac{1}{t}=\dfrac{1}{5}+\dfrac{1}{3}\\\\ \Rightarrow\ \dfrac{1}{t}=\dfrac{3+5}{15}\\\\ \Rightarrow\ \dfrac{1}{t}=\dfrac{8}{15}\\\\\Rightarrow\ t=\dfrac{15}{8} =1.875$

$t=1+0.875$ hours

$t=1\text{ hour }+0.875(60)\text{ minutes}$ [∵ 1 hour = 60 minutes]

$t=1\text{ hour }+52.5\text{ minutes}= \text{1 hour 52.5 minutes}$

Hence, It will about 1.88 hours or 1 hour 52.5 minutes to clean the stadium if they work together .

5 0

2 years ago