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xeze [42]
3 years ago
7

For example of 100 students the median is 90

Mathematics
2 answers:
jenyasd209 [6]3 years ago
7 0

Answer:

How is that possible

Step-by-step explanation:

marta [7]3 years ago
3 0

So..... what is the question ?

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Find slope plz!!!!ty
irga5000 [103]

Answer:

the slope is 3/5

Step-by-step explanation:

\frac{10-7}{5-0} =\frac{3}{5}

5 0
2 years ago
PLEASE HELP! FIND THE SURFACE AREA OF THIS SQUARE-BASED PYRAMID. I REALLY NEED HELP
jolli1 [7]

Answer:

105

For the 4 triangular faces, find the area with 1/2 × base × height = 1/2 × 5 × 8 = 20

4 triangles -> 20 × 4 = 80

The area of the square base is 25

80 + 25 - 105 cm^{2}

3 0
3 years ago
Omar rented a truck for one day. There was a base fee of $18.99, and there was an additional charge of 78 cents for each mile dr
natulia [17]
165.63-$18.99= $146.64

$146.64 / .78€ per mi= 188miles

188 miles is your answer
6 0
2 years ago
Find dy/dx if f(x) = (x + 8)^3x.
vlabodo [156]
This is quite a complex problem. I wrote out a really nice solution but I can't work out how to put it on the website as the app is very poorly made. Still, I'll just have to type it all in...

Okay so you need to use a technique called logarithmic differentiation. It seems quite unnatural to start with but the result is very impressive.

Let y = (x+8)^(3x)

Take the natural log of both sides:

ln(y) = ln((x+8)^(3x))

By laws of logarithms, this can be rearranged:

ln(y) = 3xln(x+8)

Next, differentiate both sides. By implicit differentiation:

d/dx(ln(y)) = 1/y dy/dx

The right hand side is harder to differentiate. Using the substitution u = 3x and v = ln(x+8):

d/dx(3xln(x+8)) = d/dx(uv)

du/dx = 3

Finding dv/dx is harder, and involves the chain rule. Let a = x+ 8:

v = ln(a)
da/dx = 1
dv/da = 1/a

By chain rule:

dv/dx = dv/da * da/dx = 1/a = 1/(x+8)

Finally, use the product rule:

d/dx(uv) = u * dv/dx + v * du/dx = 3x/(x+8) + 3ln(x+8)

This overall produces the equation:

1/y * dy/dx = 3x/(x+8) + 3ln(x+8)

We want to solve for dy/dx, achievable by multiplying both sides by y:

dy/dx = y(3x/(x+8) + 3ln(x+8))

Since we know y = (x+8)^(3x):

dy/dx = ((x+8)^(3x))(3x/(x+8) + 3ln(x+8))

Neatening this up a bit, we factorise out 3/(x+8):

dy/dx = (3(x+8)^(3x-1))(x + (x+8)ln(x+8))

Well wasn't that a marathon? It's a nightmare typing that in, I hope you can follow all the steps.

I hope this helped you :)
8 0
3 years ago
Unit. Ratios rates. S nercent < Convert percents to fract 26% of a number is what fraction of that number? Stuck? Watch a vid
Darya [45]
26% = 26%/100%
26/100, 13/50
answer is 13/50
8 0
3 years ago
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