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Lunna [17]
3 years ago
10

Evaluate x+x-x for x=4

Mathematics
1 answer:
Dafna1 [17]3 years ago
3 0
The answer is x=4 because 4+4 is 8 and 8 minus 4 is 4
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Does anybody know the answer? <br> I feel like it's 180
Vladimir79 [104]

Answer:

The sum of a° and b° will be 180°.

Step-by-step explanation:

We know that two angles are supplementary when they add up to 180 degrees.

We also know that we know that a straight angle is said to be having 180 degrees. A straight angle does change the direction to point the opposite way.

i.e.

Straight angle = 180°

For example, a flat surface does have an angle of 180 degrees. Also, a straight stick does have a straight angle or 180 degree.

So, from the figure, the sum of a° and b° will be 180° as they add up to 180 degrees on a straight line and hence a° and b° are supplementary angles.

Therefore, the sum of a° and b° will be 180°.

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Kobotan [32]
2(4*8) + 2(12*4) + 2(12*8)

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I took every face alone (6 in total) and multiplied Length by width. You have two from every face.
4 0
3 years ago
A rectangular Corn Hole area at the recreation center has a width of 5 feet and a length of 10 feet. If a uniform amount is adde
almond37 [142]
1. The formula for calculate the area of a rectangle, is:
 
 A=LxW
 
 A is the area of the rectangle
 L is the length of the rectangle.
 W is the widht of the rectangle

2. You have that:
 
 -The<span> rectangular Corn Hole area has a width of 5 feet and a length of 10 feet, so:
 
 L1=10 feet
 W1=5 feet
 
 - When</span> a uniform amount is added to each side (x), the area is increased to 84 feet². Then, you have a different length (L2) and a different width (W2):
 
 3. The new length is:<span> 
 
 L2=L1+x+x
 L2=L1+2x
 L2=10+2x
 
 4. The new width is:
 
 W2=W1+x+x
 W2=W1+2x
 W2=5+2x
 
 5. The new area is:
 
 A2=84 feet</span>²<span>
 
 6. Then, you have:
 
 A=LxW
 84</span>=(10+2x)(<span>5+2x)
 
 7. When you apply the distributive property, you obtain a quadratic equation:
 
 4x</span>²+30x-34=0
<span> 
 8. You can solve with by applyin the quadratic formula: 
 
 x=(-b±√(b^2-4ac))/2a
 
 a=4
 b=30
 c=-34
 
 9. Then, the answer is:
 
 x=1 feet
</span><span> 
</span>
5 0
3 years ago
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History question it’s hard
Leokris [45]

Answer:

How did British colonists differ from French colonists in the 1700s? The British did not claim land for farming, but the French did. The British settled in only one area, while the French established thirteen colonies. The British settled towns and farms, while the French mostly trapped and traded.

Step-by-step explanation:

5 0
3 years ago
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