All categories

3 years ago

I need help please! How do i know which is the correct answer.

Mathematics

1 answer:

hichkok12 [17]3 years ago

3 0

Answer:

Step-by-step explanation:

since there cant be technically half of someone (i hope not) the domain has to be "whole numbers". hours can be split, so they are "all numbers". well, looking at it again, it is C, since the others can not possibly be correct.

You might be interested in

Suppose the relationship between x and y is proportional. When x is 7 , y is . 147 Identify the constant of proportionality of

Sliva [168]

Answer:

its 21

Step-by-step explanation:

5 0

2 years ago

2x + 7 + 29 = 90<br> Help me solve it

BartSMP [9]

Answer:

x = 27

Step-by-step explanation:

look at the screenshot below it'll explain the answer

5 0

2 years ago

Read 2 more answers

PLSSSSSSSSSSSSSS HELPPPPPPP MEEEEEee

saveliy_v [14]

Answer:

8.50

Step-by-step explanation:

Find the unit rate.

51/6 = 8.5

5 0

2 years ago

Read 2 more answers

52 is 25% of what number?

Dahasolnce [82]

Answer: $208$

Step-by-step explanation:

Let be "x" the unknown number.

You know that the 25% of the unknown number "x" is 52.

With this information provided in the exercise, you can set up the following proportion:

$\frac{25}{52}=\frac{100}{x}$

Now you must solve for "x". The steps to find its value are:

- Multiply both sides of the equation by "x":

$(x)(\frac{25}{52})=(\frac{100}{x})(x)\\\\\frac{25x}{52}=100$

- Multiply both sides by 52:

$(52)(\frac{25x}{52})=(100)(52)\\\\25x=5200$

- Divide both sides by 25:

$\frac{25x}{25}=\frac{5200}{25}\\\\x=208$

4 0

3 years ago

Which of the following equations is of an ellipse with x-intercepts at (1, 0) and (-1, 0), y-intercepts at (0, 3) and (0, -3), a

Diano4ka-milaya [45]

If you were to plot the x and y intercepts you would see that this will be a vertical ellipses, taller that it is wider. The formula for an ellipse is $\frac{ x^{2} }{b^2} + \frac{y^2}{a^2}=1$ . The "a" value is always the bigger value of the a and b. The bigger value, the a, will always go under the variable that is the major axis. The major axis for us is the y axis. a = 3, so 3 squared is 9. b = 1 and 1 squared is 1. So our equation will be $\frac{x^2}{1}+ \frac{y^2}{9}=1$ , choice a from above.

8 0

3 years ago