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nydimaria [60]
3 years ago
5

The expression 2 - 2 + 5x is equivalent to the expression 5x True or False

Mathematics
1 answer:
Wittaler [7]3 years ago
7 0

Answer:

True!

Step-by-step explanation:

Put all the whole numbers together so 2+ (-2) cancels out

2-2+5x

positive 5x would be the only thing left so there you go!!!

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Correct
____ [38]
  • Answer:

<em>v₂ = 55mph</em>

  • Step-by-step explanation:

<em>Hi there ! </em>

<em>Velocity formula</em>

<em>v = distance/time = d/t => d = vₓt</em>

<em>v₁ = v₂ - 11</em>

<em>t₁ = 10h</em>

<em>t₂ = 8h</em>

<em>d = v₁ₓt₁ = (v₂ - 11)t₁ </em>

<em>d = v₂t₂</em>

<em>(v₂ - 11)t₁ = v₂t₂</em>

<em>replace t₁ ; t₂</em>

<em>(v₂ - 11)10 = v₂8</em>

<em>10v₂ - 11ₓ10 = 8v₂</em>

<em>10v₂ - 8v₂ = 110</em>

<em>2v₂ = 110</em>

<em>v₂ = 55 mph</em>

<em>Good luck !</em>

3 0
4 years ago
what is the equation of the line that is perpendicular to the line y=-3x+2 and passes through (3,-1)​
Ivenika [448]

Answer:Answer: y=x/3−2.

Step-by-step explanation:

find the equation of the line perpendicular to the line y=2−3x passing through the point (3,−1).

The equation of the line in the slope-intercept form is y=2−3x.

The slope of the perpendicular line is negative inverse: m=13.

So, the equation of the perpendicular line is y=x3+a.

To find a, we use the fact that the line should pass through the given point: −1=(13)⋅(3)+a.

Thus, a=−2.

Therefore, the equation of the line is y=x3−2.

Answer: y=x/3−2.

6 0
3 years ago
A Square has a length of 9 feet. Find the area and perimeter.
prohojiy [21]
A square is the same length on each side so each side would be 9

9+9+9+9= 36ft (perimeter)

Again each side if 9 feet to find the area u just multiply the length and width here the length and width are the same (9)

9•9= 81 (area)
5 0
3 years ago
A mother gives birth to a 6 pound baby. Every 2 months, the baby gains 5 pounds. If x is the age of the baby in months, then y i
Anni [7]

Answer:

y=2.5x+6

Step-by-step explanation:

y= weight

6 is the weight that the baby is born so you would add it to the end making it the b

5 pounds every 2 months so 2.5 pounds every 1 month.

6 0
3 years ago
The length of a rectangle is 8 feet longer than it is wideIf each side is increased 8 feet, then the area is multiplied by 2. Wh
Gemiola [76]

Answer:

W = 16

L = 24

Step-by-step explanation:

Let's write down the information we have first

"The length of a rectangle is 8 feet longer than it is wide"

L = W + 8

"If each side is increased 8 feet, then the area is multiplied by 2."

(L + 8)(W + 8) = 2LW

Now we can solve for W first, then L

(W + 16)(W + 8) = 2W(W + 8)

W² + 24W + 128 = 2W² + 16W

0 = W²- 8W - 128

0 = (W - 16)(W + 8)

W = 16

L = 24

(This part above is solved like quadratics)

4 0
3 years ago
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