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Marina CMI [18]
3 years ago
12

Can someone please help me with this ASAP!!!!!

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
4 0

Answer: is the second one

Step-by-step explanation: because is -3.2 and the second one is withdrawal

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What is the first step in solving the quadratic equation -5x2+8=133?
ololo11 [35]

Answer:

b. The first step in the equation solving is subtracting 8 from both sides of the equation.

Step-by-step explanation:

Here, the given quadratic equation is : -5x^2 + 8  = 133

Let us try and solve this given equation.

-5x^2 + 8  = 133 \\\implies -5x^2 + 8  - 8 = 133 -8\\\implies  -5x^2  =  125\\\implies  x^2  =\frac{125}{-5}  = -25\\\implies x^2  = -25 = (5i)^2

So, x  = ± 5i

Hence, as we can see here, the first step in the equation solving is subtracting 8 from both sides of the equation.

7 0
3 years ago
How do I solve this please help!​
mr Goodwill [35]

Answer:

9 x + 8 y = 10   (I)

y = -4x + 7        (II)

One way is to rewrite the second as

4x + y = 7

Now multiply this equation by 8

32 x + 8 y = 56

9 x + 8 y = 10        and now subtract the equations

23 x = 46     this gives x as 2

From equation (II)  y = -4 (2) + 7  = -1

So our values are (2, -1)

Check:

(I) 9 x + 8 y = 10         9 * 2 - 8 = 10

(II)  4 x + y = 7       or 4 * 2 - 1 = 7

Or you can substitute equation (II) directly into equation (I)

3 0
2 years ago
What does 1000 x 10000
Fofino [41]

Answer:

10,000,000

Step-by-step explanation:

3 0
2 years ago
Parallel lines and transversals
Ira Lisetskai [31]
It is 54 degrees (fifty four)
7 0
3 years ago
What is the distance between the points (7,-6) and (13,2)? Please show all work.
lana [24]

Answer:

Step-by-step explanation:

(7,-6) (13,2)

2--6. 8. 4

------= ------= ------ (2--6 turns to a +)

13-7. 6. 3

4

Slope:------

3

Points=(7,-6)

4

y--6=----(x-7) (y--6 turns to a +)

3

4. 28

y+6= ---- x - ----

3. 3

-6. -6

-------------------------

4. 46

y=----- x - -------

3. 3

6 0
2 years ago
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