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noname [10]
4 years ago
10

7. x, when n(x) = -2

Mathematics
1 answer:
grandymaker [24]4 years ago
6 0

Answer:

please send full question

Step-by-step explanation:

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As a freshman, suppose you had to take two of four lab science courses, one of two literature courses, two of three math courses
Sergeeva-Olga [200]

Answer:

We have 252 different schedules.

Step-by-step explanation:

We know that as  a freshman, suppose you had to take two of four lab science courses, one of two literature courses, two of three math courses, and one of seven physical education courses.

So from 4 lab science courses we choose 2:

C_2^4=\frac{4!}{2!(4-2)!}=6

So from 2 literature courses we choose 1:

C_1^2=\frac{2!}{1!(2-1)!}=2

So from 3 math courses we choose 2:

C_2^3=\frac{3!}{2!(3-2)!}=3\\

So from 7 physical education courses we choose 1:

C_1^7=\frac{7!}{1!(7-1)!}=7

We get: 6 · 2 · 3 · 7 = 252

We have 252 different schedules.

5 0
3 years ago
Find the image of (-7,-3) reflected across the x-axis
Korvikt [17]
IF USING GEOMETRY...

x-axis = (x, -y)

Because the x does not have a negative sign the number DOES NOT change to its opposite form, but because the y has a negative sign the number DOES changes to its opposite form (from negative number to positive.)

So... if we use the formula of x-axis, which is (x, -y), the coordinates (-7,-3) would change to (-7, 3)

ANSWER (-7, 3)
3 0
3 years ago
A certain characteristic in a large population has a distribution that is symmetric about the mean m. If 68 percent of the distr
Rzqust [24]

Answer:

The answer to the question is

The percent of the distribution is less than m + d is 84 %

Step-by-step explanation:

To solve the question we list out the variables

Percentage of distribution between m +d and m - d = 68 %

Therefore percentage that are outside the range of m + d and m - d = 32 %

For symmetry to be maintained, of the 32 % that are outside the range of m + d and m - d, 16 % are on either side of the range m + d to m - d

That is 16 % < (m-d) ↔ (m+d)< 16% total range = 100 %

Therefore the proportion of the range lesser than m+d = 100 - 16 or 84 %

4 0
3 years ago
Nancy and two friend paid a 15% tip for a restaurant bill of $51. Then
RoseWind [281]

Answer:

they payed 3.825 each

Step-by-step explanation:

15% of 51 is 7.65 so you divide that by two and get 3.825

4 0
4 years ago
Read 2 more answers
For Thanksgiving, Mario bought a 21.9 pound turkey, Rose bought a 21.147 pound turkey and Celia bought a 22.1 pound turkey. Who
svet-max [94.6K]

Answer:

Rose.

Step-by-step explanation:

21.147 may have the most numbers, but it is the smallest because there is a 1 in the tenths place

7 0
2 years ago
Read 2 more answers
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