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e-lub [12.9K]
2 years ago
8

What expression is equivalent to 2(x-4)+x

Mathematics
1 answer:
malfutka [58]2 years ago
5 0

Step-by-step explanation:

2(x-4) + x

= 2x-8 + x

= 3x - 7

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Monique worked for 435 hours and earned $39.79.
Vadim26 [7]

Answer:

$55.36

Step-by-step explanation:

3/5 = 0.6, so 4 3/5 = 4.6

2/5 = 0.4, so 6 2/5 = 6.4

(4 3/5)/$39.79 = (6 2/5)/x

4.6x = 6.4 × $39.79

x = $55.36

5 0
2 years ago
If (1)=0, what are all the roots of the function f(x)=x3+3x2-x-3?use the remainder theorem
Anon25 [30]
If f(1)=0, then by the remainder theorem \dfrac{f(x)}{x-1} has a remainder of 0, which means f(x) is divisible by x-1. In fact,

x^3+3x^2-x-3=x^2(x+3)-(x+3)=(x^2-1)(x+3)=(x-1)(x+1)(x+3)

So we know 1 is a root, and the other two roots are -1 and -3.
6 0
3 years ago
Convert the 22-foot horizontal length into inches​
Elodia [21]

Answer:

264 inches

Step-by-step explanation:

1 foot = 12 inches

so 22 feet= 22 x 12 inches= 264 inches

5 0
3 years ago
Read 2 more answers
True or false: the height is always twice the length of the base edge for any triangular pyramid
AleksandrR [38]

Answer:

FALSE

Step-by-step explanation:

The length of the base edge of a triangular pyramid may vary.

The height is not always twice the length of the base edge for any triangular pyramid, the dimensions are not fixed for any shape and can vary from one design to another.

more so, i may require a particular size or dimension of triangular based pyramid for my application that may not suit your application.

8 0
3 years ago
1.) Vivian combined different amounts of white paint, blue paint, and green paint to make 145 milliliters (ml) of paint of a new
Ivahew [28]
So here are the answers to the given questions above:
1. Since the equation is already given, what we are going to do is to solve for x first. 
<span>x + (2x – 10) + 1/2 (2x – 10) = 145
x + (2x -10) + x - 5 = 145
x + 2x + x - 10 - 5 = 145
4x = 145 +10 + 5
4x = 160 <<divide both sides by 4 and we get
x = 40.
Therefore, the amount of white paint is 40ml.
The amount of blue paint is 70ml and the green paint is 35ml.
So the difference between the a</span><span>mounts of white paint and blue paint Vivian combined is 30ml.
2. T</span>he equation of the line that passes through the points (-2, 1) and (1, 10) would be: <span>3x - y = -7, the last option. In order to check, just plug in the given ordered pairs.</span>
3 0
3 years ago
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