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Vika [28.1K]
3 years ago
6

The point is plotted on the number line.What whole number best approximates the value of x?

Mathematics
2 answers:
sattari [20]3 years ago
6 0

You can eliminate 81 because we know \sqrt{81} =9

The dot is on approximately 9.32 (my estimate) so I would square that number:

(9.32)² = 86.8624 so if you round this you get 87

Elodia [21]3 years ago
6 0

Imagine that the number line between 9.3 and 9.4 were divided into 5 = parts. Then the red dot would be 1 part to the right of 9.3, which translates into the value

9.32. Find the square of this to determine the value of x: √9.32 = 86.86.

Of the four given possible answers, 87 is the best representation of x.

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Compare your response to the sample response above. what did your explanation include? the conclusion that the work was incorrec
Alenkasestr [34]

In the case above, Talib work is not correct as one need to first switch x and y before one can solve for y.

<h3>What is the variables  about?</h3>

Note that:

y=-8x+4

y-4=-8x

(y-4)/-8=x

Since the independent variable x is known, one can switch the variable labels and thus it will be:

y=(x-4)/-8

f^-1(x)=(x-4)/-8    

This can be written again as:

f^-1(x)=(4-x)/8  :P

Thus one can say  No, as he forgot to switch the variable labels after solving for the independent variable.

In the case above, Talib work is not correct as one need to first switch x and y before one can solve for y.

See the first part of the question below

Talib is trying to find the inverse of the function to the right. His work appears beneath it. Is his work correct? Explain your answer.

Learn more about variable from

brainly.com/question/4063302

#SPJ1

6 0
2 years ago
Please help me solve these 3 problems. Solve for x state the properties used and check your answer. I’ll mark as brainliest.
Brut [27]

Answer:

a) 5x=8 use a calculator and use distributive property

b) 22=3x+5 -18

22=3x-13

9=3x

x=3

distributive property

c)-48= -8x-20+5x-1

-48= -3x-21

-27= -3x

x=7

distributive property

Step-by-step explanation:

4 0
3 years ago
Help me I need an answer today!!!!!!!
krek1111 [17]
The rate of change is 25 because it goes 25 50 75 100 think of it like quarters
4 0
2 years ago
What is the ration of 8 lions and 4 tigers
NeX [460]

Answer:

the ration is 2:1 when simplified

8 0
2 years ago
At t=0, a rock is dropped from rest from the top of a building 256 ft high. With what velocity will it strike the ground? What i
Rasek [7]

Answer:

128 ft / second.

Step-by-step explanation:

It's acceleration is due to gravity and is 32 ft s^-2.

To find the velocity when it hits the ground we use the equation of motion

v^2 = u^2 + 2gs    where  u = initial velocity, g = acceleration , s = distance.

v^2 = 0^2 + 2 * 32 * 256

v^2 = 16384

v =  128 ft s^-1.

4 0
3 years ago
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