MATHEMATICS MIDDLE SCHOOL

If x = 10, what is the value of 5(x - 3)?

A. 7
B. 47
C. 35
D. 65

Answers

Answer 1
Answer:

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Answer 2
Answer: x=10
5(x - 3)
5(10-3)
5(7)
35

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Given the arithmetic sequence an = −4 + 4(n − 1), what is the domain for n? (1 point)

Answers

Answer:

The correct answer is C. All integers where n ≥ 1

Final answer:

The domain for n in the given arithmetic sequence is the set of positive integers.

Explanation:

The domain of the arithmetic sequence an = −4 + 4(n − 1) is the set of all possible values for n. In this case, since n represents the position in the sequence, it can only take on positive integer values starting from 1. Therefore, the domain for n is the set of all positive integers: {1, 2, 3, 4, ...}.

Learn more about Arithmetic Sequences here:

brainly.com/question/35880655

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Jan won 51.9% of the votes in the race for school secretary. She received 415 votes. About how many students are in the school?

Answers

mental way:
415 / 51.9 * 100 = 800 students in the school.

detailed way:
x is the amount of students in the school.
51.9% * x = 415
(divide both sides by 51.9% (or 0.519))
x = 800 students

What is $0.1369 rounded to the nearest cent

Answers

Ok, what is $0.1369 rounded to the nearest cent? 

100 cents make a dollar which means the most possible cents not making a dollar is 99 cents

So that means you leave the first two decimals alone and focus on the last two.

What is 69 closer to? 70 or 60? Well, its larger than 65 which is the halfway point so its closer to 70

Is 70 closer to 0 or 100? Well, since 70 is past the halfway point which is 50, its closer to 100.

Think of 3 as 0 and the next number up which is 4 as 100, well, since 70 is closer to 100 than 0, its closer to 4.

So That means that 0.1369 rounded to the nearest cent is $0.14

Your answer rounded is $0.14

What is a factor tree, and how do you know when a factor tree is completed?(5th grade math Please help me.)

Answers

A factor tree starts with one number, such as 8. You draw to lines, and at the end of each is a possible way to divide 8, such as 4 and 2, because 4*2=8. Then, you divide 4 by 2, which is the only possible way without getting a 1 or a 4. Then, since 2 cannot be divided by 2 or 1.That is a complete factor tree. You can tell if a factor tree is over if you end up with a prime number.
A factor tree is a tree to represent what are the factors of the number.
Ex: 20:1,2,4,5,10

1x20
2x10
4x5
5x4
10x2
All of this equals 20
*in a factor tree you have to include all the factors of a number

The quadratic $-6x^2+36x+216$ can be written in the form $a(x+b)^2+c$, where $a$, $b$, and $c$ are constants. What is $a+b+c$?

Answers

Answer:

-47

Step-by-step explanation:

Step 1: Factor GCF

-6(x² - 6x - 36) = 0

Step 2: Divide by -6 on both sides

x² - 6x - 36 = 0

Step 3: Isolate x's

x² - 6x = 36

Step 4: Complete the Square

x² - 6x + 9 = 36 + 9

(x - 3)² = 45

Step 5: Move everything to one side

(x - 3)² - 45 = 0

So, a = 1, b = -3, c = -45

1 - 3 - 45 = -47

Plzzzz help meeeeeeeeeeeeeeee

Answers

the answer should be 112
68 +x=180
X=112
.......
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