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Harrizon [31]
2 years ago
6

Twice a number increased by 10 is 4. Find the number

Mathematics
1 answer:
Serjik [45]2 years ago
3 0

Answer:

negative 3

Step-by-step explanation:

so if you know basic algebra you can make an equation 2x+10=4 simplify it to x+5=2 and if you subtract 5 from both sides you end up with x=negative three

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What is the area of the triangle?<br> Drag the dot to help you remember the formula.
yulyashka [42]
<h3>Answer:  10 square units</h3>

Work Shown:

base = 4

height = 5

area of triangle = (1/2)*base*height = (1/2)*4*5 = 10

The dot can be dragged to the left so that the dashed height line is inside the triangle. No matter where you drag the green dot, the height stays the same and so does the area.

7 0
3 years ago
What should be added to both sides of this equation to solve for the variable? r + (-12) = 19
Slav-nsk [51]

Answer:

12

Step-by-step explanation:

Then the -12 and +12 will cancel out, so you're left with a clean isolated r on the left:

r -12 +12 = 19 + 12

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5 0
3 years ago
Read 2 more answers
Write the equation for the inverse of y = cos 2x
AlladinOne [14]

Answer:

Inverse = (arcos x) / 2.

Step-by-step explanation:

y = cos 2x

2x= arcos y

x = (arcos y) / 2.

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3 0
2 years ago
A line passes through (-2,5) and has slope. What is an equation of the line in point-slope form?
shepuryov [24]

Answer:

Step-by-step explanation:

since the question does not have a given slope you can just put the point into the point slope formula   y-y1 = m(x-x1)  

y-5 = m(x-(-2))

y-5 = m(x+2)

since the slope is not given, leave it like that

4 0
2 years ago
You are riding the swings at a fair. What are the coordinates of your location after a rotation of 180°?
nekit [7.7K]

Answer:

(6, -3)

Step-by-step explanation:

The actual coordinates are x = -6 and y = 3

If we rotate 180 degrees and the center of rotation is at (0,0), all we need to do is invert the signal of each axis, that is, we invert the sign of the original x-coordinate and invert the signal of the original y-coordinate.

So the final x-coordinate is - (-6) = 6

And the final y-coordinate is - (3) = -3

So the coordinates will be (6, -3).

5 0
3 years ago
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