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Nataly [62]
2 years ago
7

What is the exact value for the expression the square root of 56. − the square root of 14. + the square root of 126.? Simplify i

f possible.
the square root of 14.
4 the square root of 14.
2 the square root of 42.
8 the square root of 42.
Mathematics
1 answer:
solong [7]2 years ago
8 0
Factor a square root of 14 out of every expression to get:

\sqrt{14}*(\sqrt{4}-1+\sqrt{9)

\sqrt{14}*(2-1+3)

4*\sqrt{14}

Thus, the expression is equal to four times the square-root of 14.  The second answer is correct.
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30 students in a class took an algebra test.
lesya [120]

Answer:

70%

Step-by-step explanation:

21/30      p/100

30/30=2,100/30=70

5 0
2 years ago
find the x intercept of the graph of the equation y equals -2.65 x + 25. what does the x intercept mean in terms of the situatio
natali 33 [55]
Ok so we can see for every 2 cups of medium coffee, the balance goes down 5.30$. So that means that for every coffee, her balance goes down 2.65$. Solving for the x-intercept means how many medium coffees can I get until my balance is 0. First, we have to find the y-int so it's easy. The slope is -2.65 because for every medium coffee, her balance goes down 2.65$. So we have y=-2.65x+b. Plugging in any point, I choose (4,14.40), we get 14.4 = -2.65 × 4 +b. Solving for b we get 25 for the y intercept, meaning the equation is y = -2.65x + 25 . To find the x intercept, we set y=0. So we have 0 = -2.65x+25. Solving for x we get approx. 9.4. We can't have decimals so we round down to 9. So the x int is ≈ 9.4 meaning we can only buy 9 coffee and have a little extra. But, if the problem said how many more coffees can she get, then here is how we do it. Since she already got 4 coffees, and the max is 9, we do 9-4 and we get 5, so she can buy 5 coffeed more.
3 0
3 years ago
Which function can be used to find the number of ounces of coffee in the can based on its radius?
8090 [49]

Answer:

A

Step-by-step explanation:

The answer is A I hope it helped!

5 0
3 years ago
Which rationale best describes why the functions are inverses? The functions intersect each other The functions have the same ge
Oksana_A [137]

Answer: It was the third answer. C.

7 0
3 years ago
Read 2 more answers
Adrian's CD player can hold six disks at a time and shuffles all of the albums and their songs. If he has thirteen CD's, how man
Crank
Adrian can put a total of 1716 combinations in the player. 

The formula to be used is as follows:

total combinations = n!/[r! *(n-r)!]
n = number of disks available  = 13
r = number of disks that be held = 6

= 13! = (13• 12•11•10•9•8•7•6•5•4•3•2•1)/(6! <span>• 7!)
</span>=1716

Thank you for posting your question. Feel free to ask me more.



6 0
3 years ago
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