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3 years ago

Answer worth 20 points!

Mathematics

1 answer:

Alinara [238K]3 years ago

3 0

Answer: medium 18. Range 6 ,25th percentile 17 , 75th percentile 20 ,IQR 3

Step-by-step explanation from the given figure, median is equal to 18, the range is equal to 21-15 equal to 6. The 25th percentile is equal to17 while the 75th is equal to 20. IQR then is equal to 20-17 equal to 3.

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(-8x-3)- -5<br> i need work shown i don't know how to do this one

lawyer [7]

The answer for this problem is -8x+2

3 0

3 years ago

Using the graph of f(x) = log10x below, approximate the value of y in the equation 10y = 3.

Svetllana [295]

$f(x)=\log_{10}x \\ 10^y=3 \\ y=\log_{10}3=0.4771$

3 0

3 years ago

Read 2 more answers

For the polynomial function ƒ(x)= −2x2 − 4x + 16, find all local and global extrema.

rusak2 [61]

For the given quadratic equation we only have a maximum at y = 18.

<h3>How to find the extrema of the given function?</h3>

Here we have:

$f(x) = -2x^2 - 4x + 16$

Notice that this is a quadratic equation of negative leading coefficient.

Then we have a maximum at the vertex, and both arms tend to negative infinity as x tends to infinity or negative infinity.

The vertex is at:

x = -(-4)/(2*(-2)) = -1

The maximum is:

$f(-1) = -2*(-1)^2 - 4*(-1) + 16 = -2 + 4 + 16 = 18$

If you want to learn more about quadratic equations:

brainly.com/question/1214333

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7 0

2 years ago

The 2nd term in a geometic sequence is 20. the fourth term in the same sequence is 45/4 or 11.25. what is the common ratio in th

Over [174]

Let x be the value of the third term.
Since it's a geometric sequence, then:
Third term/Second term = Fourth term/Third term
x/20 = 11.25/x
Cross multiplication:
x^2 = 225
x = 15
So since the ratio is constant, then it is
x/20 = 15/20 = 3/4
So the common ratio is 3/4 or 0.75.

8 0

3 years ago

X-10<6-5x , I need the inequality solved please:)

hodyreva [135]

Answer:

x < $\frac{8}{3}$

Step-by-step explanation:

Given

x - 10 < 6 - 5x ( add 5x to both sides )

6x - 10 < 6 ( add 10 to both sides )

6x < 16 ( divide both sides by 6 )

x < $\frac{16}{6}$ , that is

x < $\frac{8}{3}$

8 0

3 years ago