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prisoha [69]
4 years ago
8

2(3x + 1) - (x - 5) = 42

Mathematics
2 answers:
melamori03 [73]4 years ago
7 0

Answer:

6x+2-x-5=42

Step-by-step explanation:

lbvjy [14]4 years ago
6 0

Answer:

6x+2-1x+5=42

Step-by-step explanation:

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What is 8 x 6 x 1/2?
Lena [83]

Answer:

24

Step-by-step explanation:

8 x 6 = 48 and 48/2 = 24

4 0
3 years ago
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What is the slope of the line that contains the points (-2, 2) and (3, 4)?
Murljashka [212]
(Y1-Y2)/(X1-X2)

(2-4)/(-2-3)

-2/-5

2/5
5 0
4 years ago
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Find the slope of the line on the graph
vlada-n [284]

Answer:

-3

Step-by-step explanation:

The line passes through (1,0) and (0,3)

Slope = Change in y ÷ change in x

Slope = \frac{3 - 0}{0 -1} = -3

7 0
4 years ago
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Which two points satisfy y=-x2(^)+2x+4 and x+y=4?
Wewaii [24]
Use subtitution method to solve the problem.

First, change y to the value of x in order to find the exact value of x.
x + y = 4
y = 4 - x

Second, subtitute y with 4 - x from the first equation
y = -x² + 2x + 4
4 - x = -x² + 2x + 4
move all terms to the left side
x² - 2x - x + 4 - 4 = 0
x² - 3x = 0
x(x - 3) = 0
x = 0 or x = 3

Third, now we have 2 values of x. Find the value of y for each of x
For x = 0
y = 4 - x
y = 4 - 0
y = 4

For x = 3
y = 4 - x
y = 4 - 3
y = 1

The solution is (0,4) and (3,1). The answer is option b
5 0
3 years ago
The height of a triangle is 4 inches. Greater than twice it's base. The area of the triangle is no more than 168 in.². Which any
mestny [16]

Step-by-step explanation:

this problem seeks to test our knowledge on word problems and algebra

<u>Solution</u>

let the base be x, and

the height h = 2x+4

We know that area of a triangle is given as

A= \frac{1}{2} b*h

substituting our given values we have

168= \frac{1}{2} x*(2x+4)\\\\168= \frac{2x^2+4x}{2} \\\\168= x^2+2x\\\\

re-arranging we have

x^2+2x-168=0\\\\

we can now find two factors that will add up to give 2 and multiply to give -168

they are 14 and -12

x^2-14x+12x-168=0\\\\x(x-14)+12(x- 14)=0\\\\x+12=0\\\\x=-12\\\\x-14=0\\\\x=14

The possible base of the triangle is 14 in

and the height is

h= 2x+4\\\\h=2(14)+4\\\\h= 28+4\\\\\h= 32 in

7 0
3 years ago
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