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Rom4ik [11]
3 years ago
5

Please help i dont get it

Mathematics
2 answers:
Delvig [45]3 years ago
8 0
"mean" just means arithmetic average...

(22+11+10+14+10)/5=13.4

"median" is the center term (if there is one) or the average of the two center terms in an ordered sequence...so our elements ordered are:

10,10,22,14,22   Since there is a single middle term 22, 22 is the median.

"mode" just refers to the element that occurs most in the set...10 appears twice so 10 is the mode.
Salsk061 [2.6K]3 years ago
7 0
Mean: 13.4
Median: 11
Mode: 10
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Use quadratic formula to find both solutions to the quadratic equation given below . 3x^2-5x-1=0
Rudiy27

Answer:

x1=\frac{5+\sqrt{37}} {6}

x2=\frac{5-\sqrt{37}} {6}

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

3x^{2} -5x-1=0  

so

a=3\\b=-5\\c=-1

substitute in the formula

x=\frac{5(+/-)\sqrt{(-5)^{2}-4(3)(-1)}} {2(3)}

x=\frac{5(+/-)\sqrt{37}} {6}

x1=\frac{5+\sqrt{37}} {6}

x2=\frac{5-\sqrt{37}} {6}

8 0
3 years ago
Read 2 more answers
Mica bought a new smart phone for $258.13. That was the price after his 18.25% discount. What was the original price of the phon
julia-pushkina [17]

The original price of phone is $ 315.76

<em><u>Solution:</u></em>

Given that Mica bought a new smart phone for $ 258.13.

That was the price after his 18.25% discount

<em><u>To find: original price of phone</u></em>

From given question,

price after discount = $ 258.13

discount = 18.25 %

Let "x" be the original price of phone

price after discount = original price - discount

258.13 = x - 18.25 \% \text{ of } x

258.13 = x - \frac{18.25}{100}x

258.13 = x(1 - \frac{18.25}{100})

258.13 = x(1 - 0.1825)\\\\258.13 = x( 0.8175)\\\\x = \frac{258.13}{0.8175}\\\\x = 315.76

Thus original price of phone is $ 315.76

4 0
3 years ago
Solve for x. Round your answer to the nearest tenth if necessary.
posledela

Answer: 15.9

Step-by-step explanation:

7 0
1 year ago
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defon

Answer:

Piazza's has the better deal per bag

Step-by-step explanation:

8 0
3 years ago
Solve for x<br><br><br> eaesfdsdfeasfsef
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77

11 X 7 is 77.

if u get two numbers on a shape you just multiply it

5 0
3 years ago
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