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larisa [96]
3 years ago
11

Someone who explain me please

Mathematics
1 answer:
kotykmax [81]3 years ago
5 0
First you need to isolate the variable so for #1 I would add 2t on both sides and add 3 on both sides. That makes the inequality -4t<-16. Then divide both sides by -4 to get t<4. This means that t is less than 4 so you need to draw an open circle on four on the number line and draw an arrow pointing to everything less than 4. ( If the inequality is equal to and less than/ greater than a # shade in the circle.)
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Question 11: Given f (x), what is f (-4.5)?<br><br><img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%28x%20-%201%29%20" id="Te
Ksenya-84 [330]

Answer:

-5.5

Step-by-step explanation:

f(x) = (x-1). f(-4.5) = (-4.5-1). f(-4.5) = -5.5

5 0
3 years ago
A box of nails weighs 130 pounds when it is 2/3 full. It weighs 74 pounds when it is 3/8 full. What is the weight of the box?
NeTakaya
Let the weight of the full Volume of nails in the box be W.
Let the weight of the box be B.

2/3 W  + B =  130 ........i          From the first statement.
3/8 W  + B =      74 ......ii         From the second statement.

Equation (i)  Minus (ii)

2/3 W  - 3/8 W + B  - B =  130 - 74
(16W  - 9W) / 24                 = 56

7W / 24  =  56.
W        =  56 * 24 / 7
W        =    192  Pounds.

Substituting V = 64 in equation (i)
2/3 W  + B =  130
2/3 * 192  + B =  130
2 * 64  + B =  130
128  + B =  130
B =  130 -128 = 2.

Therefore, weight of box, B = 2 pounds.

7 0
3 years ago
Skylar and Rodrigo each recorded how far they traveled while skateboarding. Skylar traveled 65 feet in 5 seconds and Rodrigo tra
ICE Princess25 [194]
The answer to your question is 13.5
6 0
3 years ago
Which scatterplot shows a linear association?
olasank [31]

Answer:

B

Step-by-step explanation:

A linear association means the function is a relation that can be shown with a line.

The first scatterplot is in the form of a parabola, and parabolas are the quadratic function form, meaning it cannot be linear.

Next, the second scatterplot goes diagonally, in a straight line. If we were to connect the dots using a line, then it would be a linear association, meaning that B is the correct answer.

4 0
2 years ago
What is the domain of (g/f)(x)?<br><br> f(x) = x<br> g(x) = 1
Reika [66]

Answer:

All the real numbers except 0

5 0
3 years ago
Read 2 more answers
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