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ZanzabumX [31]
3 years ago
12

Need help with delta math

Mathematics
1 answer:
jolli1 [7]3 years ago
6 0

Answer:

It looks like c

Step-by-step explanation:

I'm not completely sure bit i did this last year

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The sum of the interior angles S of a polygon with n sides is given by the formula S = 180(n-2).
shusha [124]

Answer:

,

Step-by-step explanation:

4 0
3 years ago
Find the mean, median, and mode for the data set. Round answers to the nearest tenth if necessary
pentagon [3]
Please type out the data set and share it here.

Median:  arrange the data in ascending order.  If the number of data points is odd, then take the center data point as your median.

Mean:  add up the data and divide your sum by the number of data points.

Show us what you've got.  Then we can finish responding to these questions. 
5 0
3 years ago
What shape will be created after the rotation?
castortr0y [4]
Can you attach a pic of the shape please?
5 0
2 years ago
A die with six faces has the number 1 painted on three of its faces, the number 2 painted on 2 of its faces, and number 3 on one
salantis [7]

Answer:

a) S = {1, 2, 3}

b) P(odd number) = \frac{2}{3}

c) No

d) Yes

Step-by-step explanation:

a) The sample space is the set of all possible outcomes. By definition, the elements of a set should not be repeated. Hence, the sample space S = {1, 2, 3}

However, the sample is not equiprobable because each element has different probabilities.

b) P(odd number) = \frac{number of odd digits}{number of faces}=\frac{4}{6}=\frac{2}{3}

Note that the odd numbers are 1 (on three faces) and 3 (on one face).

c) The fact the die has been biased does not change the possible outcomes. It only changes the probability of getting any given number.

d) Because the 3-face has been loaded, this probability changes. In fact, it is calculated thus:

Let's assume the probability for 1 or 2 is x. Then that of 3 is 2x(because it is twice the others). The sum of probabilities must be 1.

x+x+x+x+x+2x=1

7x=1

x=\frac{1}{7}

P(odd number) = 3\timesProb(1) + Prob(3)

= 3\times\frac{1}{7}+\frac{2}{7} = \frac{5}{7}

7 0
3 years ago
What is the form of the Difference of Cubes identity?
scoray [572]

Solution:

The difference of cubes identity is

if a and b are any two real numbers, then difference of their cubes , when taken individually:

→a³ - b³= (a-b)(a² + a b + b²)→→→Option (D) is true option.

I will show you , how this identity is valid.

Taking R H S

(a-b)(a² +b²+ab)

= a (a² +b²+ab)-b(a² +b²+ab)

= a³ + a b² +a²b -b a² -b³ -ab²

Cancelling  like terms , we get

= a³ - b³

= L H S



4 0
3 years ago
Read 2 more answers
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