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Masteriza [31]
3 years ago
7

Ello ppl pls help me with this quistion( sry i cant spell)

Mathematics
2 answers:
lora16 [44]3 years ago
8 0

Answer:

first one

Step-by-step explanation:

Anna71 [15]3 years ago
7 0
It should be the middle answer
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Getaway Travel Agency surveyed a random sample of 45 of their clients about their vacation plans. Of the clients surveyed, 21 ex
lana [24]
Your answer would be, What is about  241.

Simplify
516 * 21/45 

= ( 516/1) (21/45)
= (516/1) (7/15)

= (516)(7)/(1)(15)
= 3612/15

= 1204/5 (Decimal: 240.8) rounded to about 241


1204 divided by 5 equals 240, with a remainder of 4.  240 r 4, 240 4/5

Answer round to about : 241




Hope this helps!!!! Hope that what you are looking for, I tried my best to help!!!
5 0
4 years ago
A comet travels along a parabolic path around the Sun. The Sun is the focus of the path. When the comet is at the vertex of the
AlladinOne [14]
Remember that for a function of the form y=a x^{2}, a parabola, the focus will be: (0, \frac{1}{4a} ).
We know that the vertex of the parabola is (0,0), and the sun is the focus of the parabola; we also know that the focus is in the positive y-axis and when the comet is as its vertex, the distance between them is 60'000.000 km; therefore the focus of our parabola is (0, 60'000.000).
Now that we know the focus, we can find a using the focus of the parabola:
\frac{1}{4a} =60'000.000
1=(60'000.000)(4a)
1=240'000.000a
a= \frac{1}{240'000.000}

Now, the only thing left is replacing the value of a in our equation y=a x^{2}:
y=( \frac{1}{240'000.000)} ) x^{2}
y= \frac{ x^{2} }{240'000.000}
 
We can conclude that the equation that represents the path of the comet is y= \frac{ x^{2} }{240'000.000}

5 0
3 years ago
Find all the zeroes of the equation. x4 – 6x2 – 7x – 6 = 0
NeX [460]

Answer:

-2, 3,  -0.5 + 0.866i,   -0.5 - 0.866i.

Step-by-step explanation:

As the last term is -6 , +/- 2 , +/- 3 are possible zeroes.

Try 2:-

(2)^4 - 6(2)^2 - 7(2) - 6 = -28 so  2 is not a zero.

3:-

(3)^4 - 6(3)^2 - 7(3) - 6 = 0 so 3 is a zero.

(-2)^4 - 6(-2)^2 - 7(-2) - 6 =  0 so -2 is also a zero.

Divide the function by (x +2)(x - 3),  that is  x^2 - x - 6

gives  x^2 + x + 1

x^2 + x + 1

So we have x^2 + x + 1 = 0

x =  [-1 +/- √(1^1 - 4*1*1)] / 2

= -1 + √(-3) / 2 , - 1 - √(-3)  / 2.

= -0.5 + 0.866i, -0.5 - 0.866i

7 0
3 years ago
Joe drives 20 mi-in 1/2 h. how Long Will it take him to derive 50 mi?
tiny-mole [99]
An hour and 15 minutes.  Since Joe is driving 20 miles per 1/2 hour that means he is driving 40 miles every hour. We still have 10 miles left and since 20 divided by 2 is ten you would simply cut the time it takes him to drive 20 miles in half making 15 minutes. Then you add the time it takes to drive 40 miles and 10 miles and that's how you get an hour and 15 minutes. Hope this made sense!
7 0
3 years ago
A mountain climber started at 150 feet below sea level. What would he
Ber [7]

Answer:

3150 feet for both

Step-by-step explanation:

correct?

4 0
3 years ago
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