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postnew [5]
3 years ago
5

A number is added to the square of itself and the result is 90. Find all possible values for the number

Mathematics
1 answer:
kolezko [41]3 years ago
6 0

Answer: 9

Step-by-step explanation: 9 x 9 equals 81 and 81 add 9 is 90

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What is the GCF for 7x2 + 21?
laiz [17]

Answer:

35

Step-by-step explanation:

<u>7x2</u>+21

<u>14+21</u>

35

*The underlined problems is what you do first*

4 0
3 years ago
Pls help. will give brainliest :)
fomenos

Answer:

its option B

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Find the length of x
IRISSAK [1]
To solve you insert into proportions, then cross-multiply and simplify.
But first, add 5 and 6 to get the full side length of the bigger triangle

\frac{x}{5}  x  \frac{5.5}{11}

11x = 27.5
x = 2.5

Hope this helps!
3 0
3 years ago
Tell whether the value is a solution of the inequality X=36; 3x&lt;100
sladkih [1.3K]

Answer:

x = 36 is not a solution

Step-by-step explanation:

3x<100

Let x = 36

3*36 < 100

108 < 100

This is not true so x = 36 is not a solution

8 0
2 years ago
Read 2 more answers
What do the following two equations represent?<br> -4x-4y = -5 <br> 12x+12y = 112x
7nadin3 [17]

Answer:

These two lines are parallel and system of these equations have no solution

Step-by-step explanation:

Parallel Lines: Lines having same slope and different x and y intercept are parallel lines. System of such equations does not have any solution as these lines does not intersect at any finite points.

Standard form of line is y=mx+c where m is slope and c is y-intercept.

First Line:

-4x-4y=-5\\\\-4y=-5+4x\\\\Divide\ both\ sides\ by\ -4\\\\y=-x+\frac{5}{4}\\\\compare\ with\ y=mx+c\\\\slope=-1,\ c=\frac{5}{4}

Second Line:

12x+12y=112\\\\12y=112+-12x\\\\Divide\ both\ sides\ by\ 12\\\\y=-x+\frac{12}{112}\\\\compare\ with\ y=mx+c\\\\slope=-1,\ c=\frac{12}{112}

Hence these two lines are parallel and system of these equations have no solution

4 0
3 years ago
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