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Luda [366]
3 years ago
15

How do I solve 2(x+4x)-4=4(x-3)+2(x+10)

Mathematics
1 answer:
mixas84 [53]3 years ago
4 0
2(x+4x)-4=4(x-3)+2(x+10)
2x+8x-4=4x-9+2x+20
10x-4=6x+11
10x=6x+15
4x=15
x=3.75
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I don't get how to explain the rigid motions. Can somebody please help me.
choli [55]

Answer:

The triangle moved from the points, (-4, 4), (-4, 1), (-1, 1), and (-4, 4) to the points (3, 3), (0, 3), (0, 1) and (3, 3) without. changing shape or size.

You could say, "The triangle rotated 180° and translated 4 x-values(?) to the right"

3 0
3 years ago
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Mike drives 110 miles in 4 hours what his rate of change
Anna71 [15]

Answer:

The rate of change is 27.5 miles per hour

Step-by-step explanation:

Given:

Distance driven by mike = 110 miles

Time taken by mike to drive 110 miles = 4 hours

To Find:

Rate of change=?

Solution:

The rate of change is also known as speed . Here we have to find the speed at which the mike drives

So we know that

Speed =\frac{Distance }{Time}

Substituting the values

Speed =\frac{110}{4}

Speed =27.5

6 0
4 years ago
The weights of newborn elephants are normally distributed with a mean of 225 pounds and a standard deviation of 45 pounds. Find
Basile [38]

Answer:

0.63043

Step-by-step explanation:

Given that :

Mean = 225

Standard deviation = 45

P(x > 210) : (x - mean) / standard deviation

P(x > 210) = (210 - 225) / 45

P(x > 210) = - 0.333

P(Z > - 0.333) = 0.63043 (Z probability calculator)

6 0
3 years ago
What is 130.45 + 3.287 ?​
nexus9112 [7]

Answer:

133.737

Step-by-step explanation:

hope this helps

8 0
3 years ago
Read 2 more answers
Help asap please 40 points for help
GuDViN [60]

Answer:

a. connect the point (0 , 3) with A

b. connect the origin (0 , 0) with B

c. For A: y = 0.5x +3

For B: y = 0.5x

Step-by-step explanation:

y = ax + b is the general rule for any straight line

a being the slope and b being the y intercept, a is given to be 0.5

y = 0.5x + b, substitute the coordinates of point A

4 = 0.5 *2 +b hence b = 4 - 0.5 *2 = 4 - 1 = 3

so y = 0.5 x + 3 is the equation of the line passing through A

since the second line that passes through B is parallel to the first, hence it has the same slope of 0.5

same procedure, substitute coordinates of B

2 = 0.5 * 4 + b hence b = 2 - 0.5 *4 = 2 - 2= 0

so y = 0.5 x is the equation of the line passing through B

6 0
3 years ago
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