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lilavasa [31]
3 years ago
7

What is the answer to this algebra?5ab + 3cb - 2ba - 2bc​

Mathematics
1 answer:
Nookie1986 [14]3 years ago
7 0

Answer:b x (3a+c)

Step-by-step explanation:

Collect like terms

3ab + 3cb-2bc

3ab+cb

Factor out b from the expression

b x(3a+c)

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2) When Angelina was born, her grandparents deposited $3000 into a college savings account
notsponge [240]

Answer:

$4,200.00

Step-by-step explanation:

Given that the annual interest pay of $3,000.00 savings is 4%, at the end of the year interest will amount to $120.00. Assume that for 10 years, there is no additional or withdrawal to the savings of $3,000.00, the amount in your savings account at the end of the 10 years would be $4,200.00.

That of course is assuming no money is removed.

5 0
3 years ago
Find the sum 6/a^2b^2+a^2/b
Firlakuza [10]
(6/((a^2)(b^2)))+(a^2)/(b)
(6/((a^2)(b^2)))+((a^2)(b)(a^2))/((b)(b)(a^2))
(6/((a^2)(b^2)))+((b)(a^4))/((b^2)(a^2))
(6+(a^4)(b))/((a^2)(b^2))

5 0
4 years ago
Solve for x in the equation 2x2 + 3x-7 = x2 + 5x+39
yulyashka [42]

Answer: x=1+√47 or x=1−√47 (Assuming that the "2x2" is 2x^2)

Step-by-step explanation:

Step 1: Subtract x^2+5x+39 from both sides.

2x2+3x−7−(x2+5x+39)=x2+5x+39−(x2+5x+39)

x2−2x−46=0

For this equation: a=1, b=-2, c=-46

1x2+−2x+−46=0

Step 2: Use quadratic formula with a=1, b=-2, c=-46.

x=1+√47 or x=1−√47

3 0
3 years ago
Kelsey solved the following equation:
Tems11 [23]

9514 1404 393

Answer:

  (a) 1. Distributive property 2. Combine like terms 3. Addition property of equality 4. Division property of equality

Step-by-step explanation:

Replacement of -1/2(8x +2) by -4x -1 is use of the <em>distributive property</em>, eliminating choices B and D.

In step 3, addition of 1 to both sides of the equation is use of the <em>addition property of equality</em>, eliminating choice C. This leaves only choice A.

_____

<em>Additional comment</em>

This problem makes a distinction between the addition property of equality and the subtraction property of equality. They are essentially the same property, since addition of +1 is the same as subtraction of -1. The result shown in Step 3 could be from addition of +1 to both sides of the equation, or it could be from subtraction of -1 from both sides of the equation.

In general, you want to add the opposite of the number you don't want. Here, that number is -1, so we add +1. Of course, adding an opposite is the same as subtracting.

In short, you can argue both choices A and C have correct justifications. The only reason to prefer choice A is that we usually think of adding positive numbers as <em>addition</em>, and adding negative numbers as <em>subtraction</em>.

6 0
3 years ago
What is the slope of the line that passes through the points (-2, -3), and (5, 4)?
fomenos

Hi!

<h3>To find the slope, use this formula</h3>

\frac{y2-y1}{x2-x1}

<h3>Put in the values</h3>

\frac{4-(-3)}{5-(-2)}=\frac{7}{7}simplify=1

<h2>The slope is 1 </h2>

Hope this helps! :)

-Peredhel

4 0
3 years ago
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