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konstantin123 [22]
3 years ago
6

Please help me in Math

Mathematics
1 answer:
Rashid [163]3 years ago
8 0
1. You can add 7 units to both sides of the scale so it becomes a balance between x on the left and 21 on the right.
  x ___ 21

1A) The only number from the set that will keep the balance is x ∈ {21}
1B) The number on the right (21) will be more than x for x ∈ {0, 1, 7, 14}
1C) The number on the right (21) will be less than x for x ∈ {28, 30}


2A) (x +x +x) +(2 +4) = 102
  3x +6 = 102 . . . . . . . . simplified equation

2B) Solving the equation, you have
  3x = 102 -6
  x = 96/3 = 32
The number that could be a value of x is 32.
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The increase in a person’s body temperature T(t), above 98.6ºF, can be modeled by the function T(t)=4t/t^2+1, where trepresents
elena-14-01-66 [18.8K]
The meaning of the horizontal asymptote is that the increase in a person's body temperature is a constant value when long time passes.

You can obtain that value by calculating the limit of the function when t → ∞:

                 4t
T(t) =  ------------- => Lim T(t) when t → +∞ = 0.
             t^2 + 1

That means that at long term the Temperature tends to remain at 98.6°F.
7 0
3 years ago
Find the perimeter of a rectangle with a length of 6x+3 and a width of -2x-5.
blsea [12.9K]
The simple way of calculating a perimeter is to add all of the sides.
For a rectangle this would equal 2 x length + 2 x width
P = 2(6x + 3) + 2(-2x - 5)
= 12x + 6 - 4x - 10
= 8x - 4

At a higher level both the length and width must be greater than zero (= zero is a trivial rectangle)
6x + 3 > 0
6x > -3
x > -0.5

-2x - 5 > 0
2x + 5 < 0 (multiplying by -1 reverses the inequality)
2x < -5
x < -2.5

This rectangle cannot exist as x cannot be < -2.5 and > -0.5 at the same time!
8 0
3 years ago
Read 2 more answers
Help me for number 14 I NEED SHOW WORK TOI PLZ!
S_A_V [24]
Ouch! That is hard but I can do it. First, find the area of the triangle. (for both is 60) Then find the area of the rectangle (base) which is 48. Then do the rectangles on the sides which are 72 each (for both is 144) Then add it all together and get 252 ft squared or cubed. 
6 0
3 years ago
Maxine has a poster of her favorite ascertaining in her bedroom. The poster is 2.5 feet tall and 1.3 feet wide.what is the area
Archy [21]

Answer:

3.25 ft

Step-by-step explanation:

A = bh

A = (2.5)(1.3)

A = 3.25

4 0
3 years ago
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Madeline has used 50 sheets of a roll of paper towels, which is 5/8 of the entire roll. The equation 5/8s = 50 can be used to fi
raketka [301]

Answer:

s=80

Step-by-step explanation:

5/8ths is .625

80 x .625 =50


4 0
3 years ago
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