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soldier1979 [14.2K]
3 years ago
6

Please help! When you add the same number to both sides of an inequality is the inequality still true? When you subtract the sam

e number to both sides of an inequality is the inequality still true? When you multiply the same number to both sides of an inequality is the inequality still true? When you divide the same number to both sides of an inequality is the inequality still true.? Please explain, thank you!!!!
Mathematics
1 answer:
mote1985 [20]3 years ago
6 0

the answer is yes when you add the same number to each side the inequality is still true. If u subtract then the inequality would not be true because you are taking away from both of the sides which will make the answer smaller. GOT IT ???

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Write an expression for the length of the segment
Dvinal [7]

Answer:

x=8

Step-by-step explanation:

a

x+2=7x-3

x+7x=3-2

8×= 1

×=8

b

13y+25=8y+5

13y+8y= 25+5

21y=30

y= 30-21

y=11

8 0
2 years ago
Una escalera se apoya en una pared con un ángulo de 40º. Si se apoyase con un ángulo de 55º, se conseguiría una altura 35 cm may
sdas [7]

Answer: L ≈ 2.0 m

Step-by-step explanation:

Lsin40 = h

Lsin55 = h + 0.35

Lsin55 = Lsin40 + 0.35

Lsin55 - Lsin40 = 0.35

L(sin55 - sin40) = 0.35

L = 0.35 / (sin55 - sin40)

L = 1.98452 ≈ 2.0 m

3 0
2 years ago
Question 15 of 25<br>What is the solution to this equation?<br>X + 8 = -3​
Naddika [18.5K]

Answer:

x=-11

Step-by-step explanation:

x+8=-3

x=-3-8 :- collect like term

since we are adding two negative numbers, we will let the number be negative but add them.

x=-11

Hope it helps :)

6 0
3 years ago
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Find a formula for the described function. A rectangle has perimeter 16 m. Express the area A of the rectangle as a function of
Alex17521 [72]
Part A:

Let the length of one of the sides of the rectangle be L, then the length of the other side is obtained as follow.

Let the length of the other side be x, then

2(L+x)=16 \\  \\ \Rightarrow L+x=8 \\  \\ \Rightarrow x=8-L

Thus, if the length of one of the side is x, the length of the other side is 8 - L.

Hence, the area of the rectangle in terms of L is given by

L(8 - L) = 8L-L^2



Part B:

To find the domain of A

Recall that the domain of a function is the set of values which can be assumed by the independent variable. In this case, the domain is the set of values that L can take.

Notice that the length of a side of a rectangle cannot be negative or 0, thus L cannot be 8 as 8 - 8 = 0 or any number greater than 8.

Hence the domain of the area are the set of values between 0 and 8 not inclusive.

Therefore,

dom(Area)=0\ \textless \ L\ \textless \ 8 \ or \ (0, 8)
3 0
3 years ago
What is the slope of the line that passes through the points (6, 2) and (4, 10)?
drek231 [11]

Answer:

-4

Step-by-step explanation:

Slope = y2 - y1/x2 - x1

Given

x1 = 6

y1 = 2

x2 = 4

y2 = 10

Therefore

Slope = 10 - 2/4 - 6

= 8/-2

= -4

5 0
3 years ago
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