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3 years ago

Can someone please help me with d, g and h because I can never seem to know how to find the domain and range.

Mathematics

1 answer:

MA_775_DIABLO [31]3 years ago

4 0

$g)\ y=\cos x\to y^{-1}=\arccos x.\ The\ domain:\ [-1;\ 1].\\\\h)\ y=\cos x\to y^{-1}=\arccos x.\ The\ range:\ [0;\ \pi]$

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Find the equation of the line through point (5,1) and perpendicular to 5x−y=−3. Use a forward slash (i.e. "/") for fractions (e.

IRINA_888 [86]

Y = -1/5x + 2

A line perpendicular to another line has an opposite reciprocal slope. What opposite means is that you flip the sign (from - to + or from + to -) and reciprocal means that you flip the numerator and denominator (so if line A is perpendicular to line B and line As slope is -3, line Bs slope would be 1/3).

First find the slope of 5x - y = -3
Add y to both sides
5x = y - 3
Add 3 to both sides
y = 5x + 3

So the slope of the line is 5. That means the slope of of the perpendicular line is -1/5.

Plug the slope of the perpendicular line and the point (5, 1) into point slope form to solve the equation

y - y1 = m(x - x1)
y - 1 = -1/5(x - 5)
y - 1 = -1/5x + 1
y = -1/5x + 2

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2 years ago

5(-2/3)= what is the anwser to this

FinnZ [79.3K]

Answer:

-3.33333333333

Step-by-step explanation:

7 0

3 years ago

SEE IMAGE! Two lines below intersect to form four angles, as shown. The measure of angle 2 is 114°. What is the sum of the measu

o-na [289]

ANSWER:

Angles 2 and 4 are vertical angles, which means they have the same angle measure because they are opposite of each other. So angles 2 and 4 are both 114 so that makes 228. All of the angles have to make 360, so 360 - 228 = 132. Then, 132/2 because there are two angles. That makes 66. And angles 1 and 3 are also vertical angles so they are also the same

The answer is 132

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3 years ago

During a flu epidemic a company with 200 employees had 1/3 on Monday and another 3/10 call in sick on Tuesday.

valkas [14]

Part (a)

$\frac{1}{10}+\frac{3}{10}=\frac{4}{10}=\boxed{\frac{2}{5}}$

Part (b)

$200\left(\frac{2}{5} \right)=\boxed{80}$

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2 years ago

At the beginning of school you set-up a 4 digit pin to get into your My Payments Plus account, however you have not used your ac

djverab [1.8K]

Answer:

Given that only the first digit and a range of four possible numbers for the second digit of the four digit pin number are remembered, the number of different possible combinations are 400 (possible combinations)

Step-by-step explanation:

The given information are;

The number of digits contained in the pin = 4 digits

The number of digits that can be the first number = 1 (given that the first digit is 4)

The number of digits that can be the second number = 4 (6, 7, 8, or 9)

Therefore, we have;

The number of digits that can be the third number = 10 (0, 1, 2, 3, 4, 5, 6, 7, 8, or 9)

Similarly, the number of digits that can be the fourth number = 10

Therefore, the total number of possible combinations are;

1 × 4 × 10 × 10 = 400 possible combinations.

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3 years ago