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3 years ago

Provide a counterexample: sinx = 1/sinx

1 answer:

8 0

Sin x = 1/sin x
$sin^{2} x=1 \\ sin x= \pm1 \\ sinx=1 \ or \ sinx=-1 \\ x= sin^{-1} 1 \ or \ x= sin^{-1} (-1) \\ x= \frac{ \pi }{2} \ or \ x= \frac{3 \pi }{2}$

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Y – 1 = 2(x – 2), solve for y

solmaris [256]

Answer:

y = 2x-3

Step-by-step explanation:

y – 1 = 2(x – 2)

Distribute

y-1 =2x-4

Add 1 to each side

y-1+1 = 2x-4+1

y = 2x-3

6 0

3 years ago

Aparticular typist makes an average of four typing errors per page. If more than four errors appear on a given page, the typist

Pepsi [2]

Answer:

P(y≤4) = 0.629

Step-by-step explanation:

you can see in attachment.

5 0

4 years ago

Answer choices:<br>A (3 , -4)<br>B (4 , -7/2)<br>C (-5 , 8)<br>D (5/2 , -17/4)

zhuklara [117]

Answer: D (5/2, -17/4)

Step-by-step explanation: Using elimination your goal is to get rid or 1 variable so you can solve for the one that's left. By adding the -2y and 2y you will get 0. You will also add the 3x+x (4x) and -1+11 (10). You have now gotten rid of the y and have 4x=10. By dividing each side by 4 we now know x =2.5. D is the only possible solution with x=2.5 (5/2) but to solve for y you plug 2.5 in to an equation as x so) x-2y=11

2.5-2y=11

-2y=8.5 Answer D (5/2,-17/4) y=-17/4 (4.25)

4 0

3 years ago

I need help..... please answer ASAP if you know how to solve this

kvv77 [185]

For part A, The answer is that the car gets better gas mileage. We can see it from the graph that the number of gallons used is on the X axis, and the distance traveled using those number of gallons is on the Y axis. The easiest way to compare would be to look at the 1 gallon of gas. You can see that you can travel 25 miles on 1 gallon of gas. The truck on the other hand will get you 18 miles per gallon. Imagine putting 1 in for X, the Y value would be 18 if you did this. The graph just shows us a visual way of saying the same thing. To determine how much farther the car with a girl on 8 gallons of gas, you would just multiply 8 by 25 for the number of miles traveled by the car. You would multiply 8 by 18 to find the number of miles traveled for the truck. The answers are 200 miles for the car and 144 miles for the truck. 200-144=56 miles farther for the car.

6 0

3 years ago

The data in the table can be entered into a calculator to determine a linear equation of best fit where x represents the number

Yakvenalex [24]

Based on the data given, the conclusion that can be drawn from the correlation coefficient associated with the linear equation is C. There's a weak negative correlation between the variables.

<h3>How to illustrate the information?</h3>

From the information given, it can be seen that the value of y is increasing with the increase in the value of x.

This implies that the correlation is positive. Also, the change in the values of y with x are scattered a lot.

Therefore, the conclusion that can be drawn from the correlation coefficient associated with the linear equation is that there's a weak negative correlation between the variables

Learn more about data on:

brainly.com/question/4219149

#SPJ1

7 0

2 years ago