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jarptica [38.1K]
2 years ago
15

Can you help me with this question

Mathematics
1 answer:
Hatshy [7]2 years ago
6 0
Square root  =  exponent to power 1/2

sqrt(20x^6y^7)
= (20x^6y^7)^1/2
= 20^1/2 x^3 y^(7/2)

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Solve the equation for x:<br><br> 2.5x = 50
maria [59]

Answer:

x = 20

Step-by-step explanation:

x = 50/2.5 = 2.5x = 50

4 0
2 years ago
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Below is the graph of f ′(x), the derivative of f(x), and has x-intercepts at x = –3, x = 1 and x = 2. There are horizontal tang
guapka [62]

the derivitive is just the slope

minimum happens when the derivitive goes from negative to positive, imagine a slope of the function, the minimum is where the slope goes from neative to positive, and to get there, it has to pass through 0

max happens when the derivitive goes from positive to negative

increaseing is when the derivitive is positive



so, based on what you said, the slope of f(x) is 0 at x=-3, x=1 and x=2 since those are where the derivitive is 0 (derivitive is just the slope)

A and B are wrong because the derivitive isn't 0 at those points

C is correct because increasing means that the derivitive is positive, and so therefo since the only hoirontal place in between 1 and 2 is 1.5, it must remain positive throughout and not dip down, C is right

D is wrong then




answer is C
5 0
3 years ago
Find the area of the blue sector. Use 3.14 for pi and round to the nearest hundredth.
jeka94

Answer:

Option C 25.64\ in^{2}

Step-by-step explanation:

we know that

The area of a circle is equal to

A=\pi r^{2}

we have

r=7\ in

substitute

A=\pi(7)^{2}=49\pi\ in^{2}

Remember that

360 degrees subtends the complete area of the circle

so

by proportion

Find the area of the blue sector for an angle of 60 degrees

\frac{49\pi}{360}=\frac{x}{60}\\ \\x={49\pi*60/360

x=25.64\ in^{2}

3 0
3 years ago
Read 2 more answers
Alice purchased 4 1⁄2 kilograms of olive oil for $27. What is the price per kilogram?
vitfil [10]

Hi!

We will solve this using ratios, like this:

4 1/2 = 4,5 kg of olive oil for 27 $

1 kg of olive oil for x $

_____________________________

x = (27*1)/4,5

x = 27/4,5

x = 6 $ per kilogram

Hope this helps!

8 0
3 years ago
A pizza place near your office has small cheese pizzas for $4 and small pepperoni pizzas for $5. You are going to pick up pizzas
Lyrx [107]
It's B because 5 x 4 = 20 and 9 x 5 = 45
When you add them together you get 65
5 0
3 years ago
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