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Masteriza [31]
3 years ago
5

Someone helppppppppp

Mathematics
2 answers:
masya89 [10]3 years ago
6 0

Answer:

yes then no

Step-by-step explanation:

fractions are proportions so yeah

kipiarov [429]3 years ago
5 0

for nine they are not for 10 yes

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Is 5 in the solution set x +3≥8
forsale [732]

Answer: Yes

Step-by-step explanation:

x>=8-3

x>=5

6 0
3 years ago
The heights of 500 students at a local school were recorded and found to be approximated by the normal curve below. Which
Sunny_sXe [5.5K]

Answer:

option C.

Step-by-step explanation:

The given graph is the bell shaped graph.

From the graph we can observe that the peak is at 69.

So, the mean of the data is = 69 .

Standard deviation is the deviation of the graph from the mean value.

 =  72-69 = 3

Hence, the standard deviation is equal to 3.

So, the correct answer is option C.

5 0
3 years ago
Please help I will give 10 points​
vazorg [7]

Answer:

x = 13.75

Step-by-step explanation:

a right-angled triangle.

so, we use Pythagoras

c² = a² + b²

where c is the Hypotenuse (the side opposite of the 90 degree angle).

so, in our case

17² = 10² + x²

289 = 100 + x²

189 = x²

x = 13.75

3 0
2 years ago
PLS HELP<br> If f(x) = x2 -1, what is the equation for f–1(x)?
Anon25 [30]

We have a function,

f(x)=x^2-1

and we are asked to find its inverse function.

An inverse function essentially gets you the original value that was dropped into a function.

For example,

If I put 5 into f(x) I will get 24. Now If I take 24 and put it into the inverse function I have to get number 5 back.

The way to determine the inverse function swap the x and the f(x), then solve for f(x),

x=f(x)^2-1

f(x)^2=x+1

f(x)=\pm\sqrt{x+1}

Of course the notation demands that the obtained function be called,

f^{-1}(x)=\pm\sqrt{x+1}

Hope this helps :)

6 0
2 years ago
3x^2=12 solve the equation algebraically?
yawa3891 [41]

Answer: 2

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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