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alekssr [168]
3 years ago
9

The missing number in the arithmetic sequence 60, 51,

Mathematics
1 answer:
Harman [31]3 years ago
8 0

Step-by-step explanation:

missing where ?

I guess you mean that there is one element missing between 51 and 33 (based on the readable answer options).

if that is true, then the missing element is 42.

the difference between 60 and 51 is 9.

the difference between 51 and 33 is 18.

if there is an engender missing in between 51 and 33, then it is logical to put it in the middle cutting the interval of 18 in half to 2 times 9. which is also supported by the first interval between 60 and 51 (9).

so, it would be 51 -9 = 42

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The area of a square is 49 square meters. How long is each side?
Artemon [7]

A square has 4 equal sides, which means when you need to work out the area, you're doing length × width, but the length and width are exactly the same, because it's a square (look at the picture if you don't understand this).

That means you just have to pick any side (let's call this side x), and multiply it by another side of the square. Now, because all of the sides are equal, you're doing x multiplied by x, which is the same as x².

Therefore, if the area is equal to x², and in this question, it's also equal to 49 (as stated in the question), we can equate them to each other:

x² = 49

Now to get the x by itself, we need to do the opposite of squaring, which is square rooting. Therefore, we square root both sides of the equation:

√x² = √49

The √ and the ² cancel out, so you're just left with x:

x = √49

The square root of 49 is just 7, so we can replace √49 with 7, and we get:

x = 7

Now remember, earlier, I called x the value of one side. Therefore, by remembering that, you know that the value of one side is equal to 7. And because all the sides are the same as each other, each side is equal to 7 metres.

Therefore, your final answer is 7 metres :)

3 0
3 years ago
What percent of 25 is 21?
Damm [24]
21 IS 84% OF 25!!!!!
8 0
3 years ago
Read 2 more answers
Enter an inequality that represents the graph in the box.
Yuliya22 [10]

Find 2 points on the line:

We will use (2,2) and (0,-6)

Find the slope of the line which is the change in Y over the change in X:

(-6-2) / (0-2) = -8/-2 = 4

The slope = 4

Find the Y intercept:

y = 4x+b

use y1 for y and x1 for x

2 = 4(2) +b

2 = 8 +b

Subtract 8 from both side:

b = -6

Now you have the slope (4) and Y intercept (-6)

The equation of the line becomes y = 4X-6

The line is solid and the shaded portion of the graph is to the left of the line and it is a positive slope so the inequality would become

y ≥ 4x -6


7 0
3 years ago
List one way you can multiply polynomials by polynomials.
Dafna11 [192]

Answer:

a

Step-by-step explanation:

8 0
2 years ago
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The following data show the number of cars passing through a toll booth during a certain time period over 15 days. 18 19 17 17 2
IgorLugansk [536]

Answer: <em>third from the top</em>

Step-by-step explanation:

<em>The correct answer is third from the top.</em>

<em>Arranging numbers in ascending order: </em>

<em>15 17 17 17 18 18 18 19 19 19 21 21 22 23 24</em>

<em>Let's count how many times each number occurs in this series of numbers.</em>

<em>row of numbers</em>

<em>15 </em>+

<em>16 not</em>

<em>17 </em>+ + +

<em>18 </em>+ + +

<em>19 </em>+ + +

<em>20 not</em>

<em>21 </em>+ +

<em>22 </em>+

<em>23 </em>+

<em>24 </em>+

<em>25 not</em>

6 0
3 years ago
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