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4 years ago

Correct answer will get brainliest

Mathematics

1 answer:

Usimov [2.4K]4 years ago

3 0

Answer: $\lim_{n \to \infty} a_n \geq x^{2} \leq$

Step-by-step explanation:

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A Cepheid variable star is a star whose brightness alternately increases and decreases. Suppose that Cephei Joe is a star for wh

4vir4ik [10]

Answer:

$\dfrac{0.7\pi}{5.3}\cos(\dfrac{2\pi t}{5.3})$

0.16

Step-by-step explanation:

According to the question the mathematical model should be

$B(t)=2.9+0.35\sin(\dfrac{2\pi t}{5.3})$

Differentiating with respect to time we get

$B'(t)=0.35\cos(\dfrac{2\pi t}{5.3})\times(\dfrac{2\pi}{5.3})\\\Rightarrow B'(t)=\dfrac{0.7\pi}{5.3}\cos(\dfrac{2\pi t}{5.3})$

So, the rate of change of brightness after t days is $\dfrac{0.7\pi}{5.3}\cos(\dfrac{2\pi t}{5.3})$

After 1 day means $t=1$

$B'(1)=\dfrac{0.7\pi}{5.3}\cos(\dfrac{2\pi\times 1}{5.3})\\\Rightarrow B'(1)=0.16$

The rate of increase after one day is 0.16.

8 0

3 years ago

Nine less than the product of 6 and a number is equal to 8

Romashka-Z-Leto [24]

Answer:

2.83

Step-by-step explanation:

You want to add 9 to 8 to get 17. 6 times a number must therefore equal 17. You can use the opposite which is division and divide 17 by 6 to get 2.83.

8 0

3 years ago

Pls help I have a test

CaHeK987 [17]

Answer:1373/448

Step-by-step explanation:

49+7square root of 5 x 2 square root of 2/7 square root of 3 x 2 square root of 6

49+16807 x 2 square roof of 2/7 square root of 3 x 2 square root of 6

49+16807 x 4/7 square root of 3 x 2 square root of 6

49+67228/7 square root of 3 x 2 square root of 6

67277/7 square root of 3 x 2 square root of 6

67277/343 x 2 square root of 6

67277/343 x 64

67277/21952

1373/448

5 0

3 years ago

Read 2 more answers

A local school has clubs. The number of students in each club is shown in the bar graph below. Use this bar graph to answer the

zysi [14]

C is correct I think

3 0

3 years ago

Please answer asap

Lapatulllka [165]

Answer:

The second graph.

Step-by-step explanation:

A graph with a relation that is not a function would have more than one y value at any x point. For example, in the second graph, at (-0.5) on the x-axis, the y values are 4 and -4 so its relation does not have a function.

8 0

3 years ago