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3 years ago

PLEASE HELP ASAP

Mathematics

1 answer:

Degger [83]3 years ago

6 0

Answer:

yes it will be a rational number.

Step-by-step explanation:

square having area 400 sq units will have a length of 20 on each side

by increasing the lenght of each side by 1 we get 21

then the area will be 21 ^ 2 which equals 441

Therefore we get a rational number.

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HELPPPPPPPPP PLEASEEEEE Write the perimeter of the triangle as a polynomial

GuDViN [60]

It’s either B or D. I’m sorry I’m not so sure but I think it’s either one of those.

6 0

3 years ago

2.The number of tickets sold to a play for each showing is 78, 84, 87, 80, 91, 95, and 80.

Luden [163]

Answer:

$Min =78$

The maximum is :

$Max = 95$

Now we can calculate the median since the sample size os n =7 the median would be the middle value at the position 4 from the dataset ordered and we got:

$Median =84$

Now we can find the quartile 1 we analyze the first 4 values 78, 80,80, 84 and the first quartile would be:

$Q_1= \frac{80+80}{2}= 80$

Now we can find the quartile 3 we analyze the last 4 values 84,87, 91, 95 and the third quartile would be:

$Q_3= \frac{87+91}{2}=89$

And finally the 5 number summary would be:

$Min = 78, Q_1 = 80, Median=84, Q_3 = 89, Max=96$

Step-by-step explanation:

We have the following data given:

78, 84, 87, 80, 91, 95, and 80.

The first step is order the dataset on increasing way and we got:

78, 80,80, 84,87, 91, 95

We can begin finding the minimum value and for this case is:

$Min =78$

The maximum is :

$Max = 95$

Now we can calculate the median since the sample size os n =7 the median would be the middle value at the position 4 from the dataset ordered and we got:

$Median =84$

Now we can find the quartile 1 we analyze the first 4 values 78, 80,80, 84 and the first quartile would be:

$Q_1= \frac{80+80}{2}= 80$

Now we can find the quartile 3 we analyze the last 4 values 84,87, 91, 95 and the third quartile would be:

$Q_3= \frac{87+91}{2}=89$

And finally the 5 number summary would be:

$Min = 78, Q_1 = 80, Median=84, Q_3 = 89, Max=96$

5 0

4 years ago

I need so much help!!!!

USPshnik [31]

Answer:

94.25m

Explanation:

$\frac{3cm}{4.5m}$ × $\frac{19.5}{x}$

Solve for x.

(cross multiply & divide)

4.5 × 19.5 = 282.75

282.75 ÷ 3 = 94.25

4 0

4 years ago

Which of the following statements describes the absolute value of a number "a"?

Softa [21]

This is a tricky question as for me. But I think, I'd go with C) The distance from the number "a" to 0 on a number line can be represented by the absolute value of a number "a." As it's sounds better in practical way.

5 0

4 years ago

Find the set of values of x for which y is zero in the equation y=(x + 2) (2x-2)

Alex777 [14]

Answer:

{ - 2, 1 }

Step-by-step explanation:

To determine the values let y = 0, that is

(x + 2)(2x - 2) = 0 ← in standard form

Equate each factor to zero and solve for x

x + 2 = 0 ⇒ x = - 2

2x - 2 = 0 ⇒ 2x = 2 ⇒ x = 1

The set of values are { - 2, 1 }

8 0

3 years ago