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4 years ago

Please help!! ASAP!!

Mathematics

2 answers:

ser-zykov [4K]4 years ago

6 0

Answer:

The scientific notation will be Letter D

blagie [28]4 years ago

5 0

I’m pretty sure it’s D!

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Of the 8 students in the chess club, three will represent the club at an upcoming competition. How many different 3-person teams

xz_007 [3.2K]

I think that this is a combination problem. From the given, the 8 students are taken 3 at a time. This can be solved through using the formula of combination which is C(n,r) = n!/(n-r)!r!. In this case, n is 8 while r is 3. Hence, upon substitution of the values, we have

C(8,3) = 8!/(8-3)!3!
C(8,3) = 56

There are 56 3-person teams that can be formed from the 8 students.

6 0

3 years ago

Read 2 more answers

A dartboard has 8 equally sized slices numbered from 1 to 8. Some are grey and some are white, as shown below.

Anna [14]

✨Answer:

✨:P (X) is 7/10P(not X) is 3/10 The total is 10 so that's ur denominator The probability of landing on a grey area is 7/10✨

Step-by-step explanation:✨

✨~hope this helps~✨

✨GOD LOVES YOU✨

8 0

3 years ago

11. Write 343 with an exponent by using<br> 7 as the base.

dimulka [17.4K]

Answer:

343 can be written as

$7 {}^{3}$

Step-by-step explanation:

since we know,

343 = 7 × 7 × 7

so, we can write 343 as cube of 7

hence,

$343 = 7 {}^{3}$

5 0

3 years ago

What is the mean absolute deviation?

Lostsunrise [7]

Answer:

0.8 cm

Step-by-step explanation:

The formula for MAD is attached in the picture.

x_i are the values (data)

x bar is the mean

n is the number of numbers (data)

For figuring out MAD, basically, <em>we subtract the mean from each of the values respectively and take the absolute value and SUM for all of the numbers in the data set. Then we divide by n, the number of numbers.</em>

<em />

Let's do this:

MAD = $\frac{|2-3|+|2-3|+|2-3|+|2-3|+|3-3|+|3-3|+|3-3|+|4-3|+|4-3|+|5-3|}{10}\\=\frac{1+1+1+1+0+0+0+1+1+2}{10}\\=\frac{8}{10}=0.8$

MAD is 0.8

6 0

3 years ago

There are 18 female students and 16 male students in a class. Which of the following expresses the ratio of female students to m

fiasKO [112]

Hey!

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Solution:

The ratio is FEMALES to MALES.

So its 18/16, 18:16, or 18 to 16.

~Now we need to simplify.

18:16 → 18/2:16/2 → 9:8

*Note* When you have a ratio you need to know which comes first. If you put males to females that incorrect. It has to be correct according to the question.

-------------------------------------------------

Answer:

$\large\boxed{B)~9~to~8}$

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Hope This Helped! Good Luck!

4 0

3 years ago