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lakkis [162]
2 years ago
10

Find the sum or difference.

Mathematics
1 answer:
Strike441 [17]2 years ago
7 0

Answer:

3y + 5

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Combining Like Terms

Step-by-step explanation:

<u>Step 1: Define expression</u>

(4y + 3) - (y - 2)

<u>Step 2: Simplify</u>

  1. Distribute negative:                    4y + 3 - y + 2
  2. Combine like terms (y):               3y + 3 + 2
  3. Combine like terms (Z):              3y + 5
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10 out of every 65 students order pizza for lunch. There are 416 students at her school. How many students will eat pizza at her
Studentka2010 [4]

Answer:

64

Step-by-step explanation:

First, you divide 416 by 65. This gets you 6.4. But it's not 1 in 65 eating pizza, it's 10 out of 65, so then you multiply 6.4 by 10, getting 64.

3 0
3 years ago
Expand 2(7x - 1) please​
vlada-n [284]

Answer:

14x - 2

Step-by-step explanation:

2(7x - 1)

Distribute the 2

2*7x - 2*1

14x - 2

6 0
3 years ago
Read 2 more answers
What is the explicit rule for this sequence?<br> -5, 15, – 45, 135, ...
hoa [83]

Answer:

Step-by-step explanation:

In a geometric sequence, consecutive terms differ by a common ratio. The formula for determining the nth term of a geometric progression is expressed as

an = a1r^(n - 1)

Where

a represents the first term of the sequence.

r represents the common ratio.

n represents the number of terms.

From the given sequence,

a1 = - 5

r = 15/- 5 = - 3

Therefore, the explicit rule for this sequence is

an = - 5(- 3)^n - 1

4 0
3 years ago
H(x)=(x^2)+1 and K(x)=-(x^2)+4. If K(H)=0, what are the roots/solutions?
zubka84 [21]
H(x)=(x^2)+1\ \ \ \ and\ \ \ \  K(x)=-(x^2)+4. \\\\K(H)=-(H^2)+4=-(x^2+1)^2+4=4-(x^2+1)^2=\\\\.\ \ \ =2^2-(x^2+1)^2=(2-x^2-1)(2+x^2+1)=(1-x^2)(3+x^2)=\\\\.\ \ \ =(1-x)(1+x)(x^2-3\cdot i^2)=(1-x)(1+x)(x- \sqrt{3} \cdot i)(x+ \sqrt{3} \cdot i)\\\\ K(H)=0\ \ \ \ \Leftrightarrow\ \ \ (1-x)(1+x)(x- \sqrt{3} \cdot i)(x+ \sqrt{3} \cdot i)=0\\\\x=1\ \ \ \ or\ \ \ \ x=-1\ \ \ \ or\ \ \ \ x=\sqrt{3} \cdot i\ \ \ \ or\ \ \ \ x=-\sqrt{3} \cdot i\\\\Ans.\ e.
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3 years ago
24 pointss helpssss..tysmmm
morpeh [17]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
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