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Dmitry_Shevchenko [17]
3 years ago
14

Ella and three friends run in

Mathematics
1 answer:
frutty [35]3 years ago
4 0
4x14 =56 each run 14 miles and 4 people
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What is 720/1080 reduced as a fraction
bonufazy [111]
Answer=2/3

720/1080=72/108=8/12=2/3

720/1080=2/3
5 0
3 years ago
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5x^2-2x=2<br>help plsmmm​
Yuki888 [10]

Answer:

Presumably you're solving for x here?  Without further information we'll assume that.

With that in mind, x is approximately equal to 0.86 and -0.46

Step-by-step explanation:

Let's start by putting it in the usual ax² + bx + c format.

5x^2- 2x = 2\\5x^2 - 2x - 2 = 0\\

let's solve it.  First we'll multiply both sides by five, making the first term a perfect square:

25x^2 - 10x - 10 = 0\\

Now we'll add 11 to both sides:

25x^2 - 10x + 1 = 11\\

Which makes the left side a perfect square:

(5x - 1)^2 = 11

And now we can solve for x:

(5x - 1)^2 = 11\\\\5x - 1 =  \sqrt{11} \\\\5x = 1 + \sqrt{11}\\\\x = \frac{1 + \sqrt{11}}{5}

Note that there's no apparent way of drawing the ± symbol when editing equations, so take that + sign as actually being ±.

That gives us two answers:

x = \frac{1 + \sqrt{11}}{5}\\\\x \approx \frac{1 + 3.32}5\\\\x \approx \frac{4.32}5\\\\x \approx 0.86             x = \frac{1 - \sqrt{11}}{5}\\\\x \approx \frac{1 - 3.32}5\\\\x \approx \frac{-2.32}5\\\\x \approx -0.46

7 0
3 years ago
X · 1 + x/1 = _____.<br><br> A. 1<br> B. x<br> C. 1 + x<br> D. 2x
elena55 [62]

Answer:

D. 2x

Step-by-step explanation:

x · 1 + x/1

= x + x

= 2x

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3 years ago
The function graphed is reflected across the x-axis to create a new function.
Igoryamba

(4,2) suppose its Point A

6 0
3 years ago
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Over 44% of the 30 students in a class read a book last month. What are the possible numbers of students in the class who read a
AlladinOne [14]

Answer:

75

Step-by-step explanation:

30÷40%=75

8 0
3 years ago
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