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3 years ago

Help pls- I dont know it T^T

Mathematics

1 answer:

docker41 [41]3 years ago

7 0

Answer:

Ans: H and A

Step-by-step explanation:

By the identity:

1-(cos(x)) $cos^{2}(x)+ sin^{2}(x)=1\\cos^{2}(x)=1- sin^{2}(x)\\\\cos(x)=\sqrt{1- sin^{2}(x)} \\sin(x)=\sqrt{1- cos^{2}(x)}\\\\\sqrt{1- cos^{2}(x)}/sinx=1\\\sqrt{1- sin^{2}(x)}/cosx=1\\\sqrt{1- cos^{2}(x)}/sinx+\sqrt{1- sin^{2}(x)}/cosx=2\\\\\\$

Ans: H

For second quesiton, the transformation of a graph is that:

f(x) + k means vertical translation up by k units

Two curve have the same maximum value, so the graph doesn't translate upwards or downwards, thus b=0

Ans: A

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Which rules has a scale factor of 5 and shifted up and to the left?

serious [3.7K]

Answer:

185 37 = 5 1; the scale factor is 5: 1. So every other linear measure is multiplied times 5. If we have the big right triangle and want to scale it down to make the smaller one, we write this: 37 185 = 1 5

Step-by-step explanation:

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3 years ago

Which gives an equation for the line perpendicular to y = 2/3x + 1 that contains (0, 2) * O y = 3/2x + 2 O y = -3/2x + 2 O y = 3

andrew11 [14]

Answer:

$y = -\frac{3}{2}x + 2$

Step-by-step explanation:

Equation of a line:

The equation of a line has the following format:

$y = mx + b$

In which m is the slope and b is the y-intercept(value of y when x = 0).

If two lines are perpendicular, the multiplication of their slopes is -1.

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This means that $b = 2$ . So

$y = mx + 2$

Finding the slope:

Perpendicular to y = 2/3x + 1 means that:

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3 years ago

Gary is testing a river water sample in his lab. Initially, there are 64 bacteria in the river water sample. The number of bacte

rusak2 [61]

<h2>Hello!</h2>

The answers are:

- The quantity that represents the initial number of bacteria is <u>64.</u>

- The quantity that represents the rate at which the number of bacteria is increasing is (1+0.12) or <u>1.12</u> which means the growth rate percentage for the bacteria is 0.12 or (0.12*100), it will be <u>12%.</u>

To solve the problem, and complete the statements, we need to remember the form of the exponential growth.

The exponential growth formula is given by the following formula:

$P(t)=StartAmount(1+PercentageRate)^{t}$

Where,

Start Amount, is the starting population or amount.

(1+Percentage Rate), is the increasing rate

Percentage Rate, is the growth rate percentage.

t, is the time elapsed.

Now, we are given the following expression:

$P(3)=64(1.12)^{3}$

Which can be rewrited as:

$P(3)=64(1+0.12)^{3}$

So, we have that:

- The quantity that represents the initial number of bacteria is 64.

- The quantity that represents the rate at which the number of bacteria is increasing is (1+0.12) or 1.12 which means the growth rate percentage for the bacteria is 0.12 or (0.12*100), it will be 12%.

Have a nice day!

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3 years ago

Identify all sequences of transformations that result in similar figures.

4vir4ik [10]

Answer:

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Step-by-step explanation:

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2 years ago

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