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anyanavicka [17]
3 years ago
7

A study with a sample that is very different from the population is

Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
5 0
F. An experiment because they are conducting a study and experimenting with a sample different from what is known
You might be interested in
Evaluate the expression -7 1/4x + 3 5/8 for x= -4
Misha Larkins [42]

Answer:

32 5/8 (or 32 and 5/8)

Step-by-step explanation:

Okay, so this problem is asking for us to solve this problem with the substitution of a variable: x = -4. Before we fully solve this problem, we need to replace all of those x variables with -4 so that it is easier to solve.

-7 1/4(-4) + 3 5/8.

To make this problem even easier to solve, let's turn these mixed numbers into improper fractions. To do this, multiply the denominator by the whole number. Then add the numerator to this number. The new number that you just got is now your new numerator for this number.

-29/4(-4) + 3 5/8.

Repeat the last step to turn the other mixed number into an improper fraction.

-29/4(-4) + 29/8.

Now let's multiply that -4 by 29/4. Because a whole number technically has a denominator of 1, we can now set up the next part of our problem. (The symbol * means multiplication since we can't use x since it is already being used as a variable in this equation.)

(-29/4 * -4/1) + 29/8.

29 + 29/8.

Now to solve the rest of this problem, let's convert the whole number of 29 so that it has a denominator of 8. This is that these two numbers are addable.

<u>29</u> x <u>8</u> = <u>232</u>

1   x 8 =   8

Now these numbers are addable. So:

232/8 + 29/8 = 261/8 = 32 5/8.

I hope that this helps.

4 0
3 years ago
I need help with this problem
sukhopar [10]

Answer:

40.9

Step-by-step explanation:

add all the sides

3 0
3 years ago
Read 2 more answers
Three times a number added to six is equal to five times the same number.
NISA [10]
Here you go if you need help solving I’ve got you

7 0
3 years ago
Read 2 more answers
If Susie paid 827 in taxes on gross income of 1748 what percent of her gross pay is being taken out in taxes
maw [93]

Answer:

47.3 % of Susie gross pay is being taken out in taxes .

Step-by-step explanation:

Formula

Percentage = \frac{Part\value\times 100}{Total\ value}

If Susie paid 827 in taxes on gross income of 1748 .

Part value = 827

Total value = 1748

Putting all the values in the formula

Percentage = \frac{827\times 100}{1748}

Percentage = \frac{82700}{1748}

Percentage = 47.3 %

Therefore 47.3 % of Susie gross pay is being taken out in taxes .

8 0
3 years ago
What is the vertex for the graph of f (x)=-3 (x+5)^2+7? Does the parabola open upward or downward why?
castortr0y [4]
The vertex would be (-5, 7).

The parabola would open downwards because of the negative sign at the very beginning of the equation. If that negative sign wasn't there, it would open upwards.

Don't think clever or anything. I just used a simple graphing calculator, and most classes encourage the use of these calculators. 
6 0
4 years ago
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