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asambeis [7]
3 years ago
13

Stream hala hala by ateez bye

Mathematics
1 answer:
Anna35 [415]3 years ago
3 0

stream on the ground and gone by rosé bye

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If I add the square of a number<br> to the number itself, I get 30.<br> What could the number be?
Wittaler [7]

Answer:

I know you could easily solve this just looking at it.

But if you want the algebraic solution:

x + x^2 = 30

x^2 + x -30 = 0

a = 1  

b = 1

c = -30

Using the quadratic formula:

x = [ -b +- sqr root (b^2 - 4ac) ] / 2a

x = [-1 +- sqr root (1 - 4 * 1 -30) ] / 2*1

x = [-1 +- sqr root (1 + 120) ] / 2

x = -1 +- sqr root (121) / 2

x1 = (-1 + 11) / 2 = 10 / 2 = 5

x2 = (-1 -11) / 2 = -12 / 2 = -6

Answers are 5 and -6

5 + 5^2 = 30

-6 + (-6)^2  = 30

-6 +36  = 30

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Please solve the following inequality, showing all work and then list 3 numbers that are in the solution set.
sweet-ann [11.9K]
X/6 > 3
we don't know what x is so we must put a multiple of 6 
12/6 > 3
we divide 12 by 6 and we get 2. We need a higher number
18/6 > 3
we divide 18 by 6 and we get 3. We need a higher number
24/6 > 3 
we divide 24 by 6 and we get 4. Perfect

Answer is 4

4 0
3 years ago
Need help please don't know this
4vir4ik [10]

Answer:

  x = -3

Step-by-step explanation:

The graph is symmetrical about the vertical line through its vertex:

  x = -3

8 0
3 years ago
which set does square 7 belong to? integers and irrational numbers irrational and real numbers real and rational numbers rationa
IgorC [24]

Answer:

Rational and whole numbers

Step-by-step explanation:

7x7=49 which is a whole number which automatically makes it rational!

3 0
3 years ago
Let f(x)=-2x+4 and g(x)=-6-7. Find f(x)-g(x).
Stels [109]

Answer:

4x+11

Step-by-step explanation:

Assuming you mean  g(x)=-6X-7

f(x)-g(x)

Replace f(x) with-2x+4  and g(x) with -6x-7

-2x+4 - (-6x-7)

Distribute the minus sign

-2x+4+6x+7

Combine like terms

-2x+6x+4+7

4x+11

7 0
3 years ago
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