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4 years ago

Plz help me with this

Mathematics

1 answer:

Lerok [7]4 years ago

5 0

Answer: $\bold{c)\quad \dfrac{\pi}{2}}$

Step-by-step explanation:

sin is an odd function and cos is an even function.

To convert a sin graph to a cos graph, shift the sin graph $\dfrac{\pi}{2}$ units to the right --> C = $\dfrac{\pi}{2}$

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Will give brainliest

V125BC [204]

Answer:

Step-by-step explanation:

Basically, this question is asking the legs of the triangle shown in the graph.

In this right triangle, there are 2 legs and one of them is 6400 meters. We were asked to find out the length of the other led. And we know the angle is 16.5 deg.

Using Tangent to find out:

set the length of the other leg is x meters.

tan(16.5) = 6400/x

x= 6400/tan(16.5)

x= 21606 m

7 0

2 years ago

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Use the counting techniques from the last chapter. A bag contains three red marbles, four green ones, one fluorescent pink one,

sergiy2304 [10]

Answer:

The probability that she gets all the red ones, given that she gets the fluorescent pink one, is P=0.0035 or 0.35%.

Step-by-step explanation:

Susan grabs four marbles at random.

We have to calculate the probabilities that he picks the 3 red ones, given that she already picked the fluorescent pink.

If it is given that the fluorescent pink is already picked, we are left with three red marbles, four green ones, two yellow ones, and four orange ones. A total of 13 marbles.

The probability that the second marble is red is 3 in 13.

The probability that the third marble is also red is 2 (the red marbles that are left) in 12 (the total amount of marbles left), as there is a picking without replacement.

The probability that the fourth marble is 1 in 11.

Then, the probability that the 3 red marbles are picked, is:

$P=P_1\cdot P_2\cdot P_3=\dfrac{3}{13}\cdot \dfrac{2}{12}\cdot \dfrac{1}{11}=\dfrac{6}{1716}=0.0035$

4 0

3 years ago

A cube is shown. What is the surface area of the cube?

valkas [14]

1350 cm^2. First, we must find the area of one side. The formula for the area of a square is S^2 or S*S, so plugging in the value of the side we get 15*15=225. So each side of the cube is 225 cm^2, so since there are 6 sides, we just multiply by 6 (225*6=1350).

4 0

3 years ago

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Help quick. Need fast. Thx

Vlada [557]

2/9×5=10/45
3/5×9=27/45
so 3/5 is bigger then 2/9

5/7×5=25/35
3/5×7=21/35

So 5/7 is larger than 3/5

So from least to greatest the numbers are
2/9 then 3/5 then 5/7

So your answer is A

6 0

3 years ago

Simplify the expression: 8d+9c+1x3=b

VMariaS [17]

Answer:

b=8d+9c+3

Step-by-step explanation:

Multiply:

1x3=3

Rewrite Equation:

b=8d+9c+3

Hence, the correct answer is b=8d+9c+3

6 0

2 years ago

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