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2 years ago

A corollary needs which of the following geometric terms to be proven true?

Mathematics

1 answer:

noname [10]2 years ago

7 0

Answer:

B. Identity

Step-by-step explanation:

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Simplify completely quantity of x squared plus 7 x minus 30 all over quantity of x plus 10. x2 + 4 x2 ? 4 x ? 3 x + 3

GalinKa [24]

This looks like: $\frac{x^2+7x-30}{x+10}$

To solve this problem, you'll want to use the AC method to factor x^2+7x-30.

After factoring your expression will look like this:

$\frac{(x-3)(x+10)}{x+10}$

Cancel out the x+10 because they are common factors, so you are just left with the simple x-3.

Answer is:

x - 3

4 0

2 years ago

Read 2 more answers

How many degrees are in 1/16 of a circle

emmainna [20.7K]

Answer:

22.5 deg

Step-by-step explanation:

8 0

3 years ago

Corinna is taking a test in which short-answer questions are worth 10 points each and essay questions are worth 15 points each.

romanna [79]

Can smart people answer.??????? Corinna is taking a test in which short-answer questions are worth 10 points each and essay questions are worth 15 points each. She estimates that it takes 3 min to answer each short- answer question and 6 min to answer each essay question. The total time allowed is 60 min, and no more than 16 questions can be answered. Assuming that all her answers are correct, how many questions of each type should Corinna answer in order to get the best score?

3 0

2 years ago

Tim must read 2 books from a list of 7 recommended books for his summer reading program. In how many different ways can Tim choo

Marianna [84]

There are 21 ways Tim choose 2 books from the 7 recommended book

Solution:

Given that Tim must read 2 books from a list of 7 recommended books for his summer reading program

To find: different ways can Tim choose 2 books from the 7 recommended books

This is a combination problem

A combination is a selection of all or part of a set of objects, without regard to the order in which objects are selected

The formula for combinations is:

$n C_{r}=\frac{n !}{r !(n-r) !}$

where n represents the number of items, and r represents the number of items being chosen at a time

Here we have to choose 2 books from 7 books

Therefore, n = 7 and r = 2

Substituting values in above formula, we get

$\begin{aligned}&7 C_{2}=\frac{7 !}{2 !(7-2) !}\\\\&7 C_{2}=\frac{7 !}{2 ! \times 5 !}\end{aligned}$

For a number n, the factorial of n can be written as,

$n !=n \times(n-1) \times(n-2) \dots \dots \times 2 \times 1$

Therefore, we get

$7 C_{2}=\frac{7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1}{2 \times 1 \times 5 \times 4 \times 3 \times 2 \times 1}\\\\7C_2 = 7 \times 3 = 21$

Thus there are 21 ways Tim choose 2 books from the 7 recommended book

7 0

3 years ago

A high school has 44 players on the football team. The summary of the players' weights is given in the box plot. What is the int

lutik1710 [3]

Answer:

Where’s the plot box???

Step-by-step explanation:

???

3 0

2 years ago