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tresset_1 [31]
2 years ago
9

Hey get you points hahahaha

Mathematics
2 answers:
Juli2301 [7.4K]2 years ago
8 0
Thank youuuuuuuuuuuuuuuuuu
gayaneshka [121]2 years ago
5 0
Thank you so muchhhh!
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Is -77 a integer? Anyone help pls
maria [59]

Step-by-step explanation:

yeah -77 is an integer

A whole numbers with + or - sign is an integer

3 0
2 years ago
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X^2+4x+20=12x-5<br><br> Solve this equation
Scrat [10]

Answer:

4 + (or -) 3i

Step-by-step explanation:

Hi!

Alright, so we're going to move all of the variables and constants to one side. Then, using the quadratic formula, we'll find the answer.

1. Move 12x-5 to the left side of the equation by

  a. Subtracting 12x from both sides

  b. adding 5 to both sides.

1: x^2+4x+20-12x+5

2. Group the common terms

  x^2+4x-12x+20+5 --> x^2-8x+25

3. Look at the problem. We can't factor this.

Explanation for why this isn't factorable (you can skip this)

(1) 25 is positive, so its two factors will both be either positive or negative. We're looking for a negative 8, so let's go with negative.

(2) Factors of 25: 1 & 25, 5 &5

Seeing the problem? Ya, none of the factors of 25 sum to eight. So, instead, we're going to use the quadratic formula.

4.  So, the quadratic formula: \frac{-b+-\sqrt{b^2-4ac} }{2a}

Our equation is x^2-8x+25=0

a is the constant in front of the x^2

b is the constant in front of the x

c is the term without any x values

so, a=1, b=-8, and c= 25

Into equation:

\frac{8+-\sqrt{64-4(1)(25)} }{2a}=\frac{8+-\sqrt{64-100} }{2}=\frac{8+-\sqrt{-36} }{2}

8/2 = 4

sqrt(-36) = 6i

6i/2 = 3i (remember, we still have the two in the denominator)

4 + (or -) 3i

8 0
2 years ago
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Suppose that prior to conducting a coin-flipping experiment, we suspect that the coin is fair. How many times would we have to f
Delicious77 [7]

Answer:

AYOOOOO MONEY CHECK

Step-by-step explanation:

8 0
3 years ago
If m∠BAC = 98°, what is m∠BDC?
Leviafan [203]
I believe it's also 98 degrees, because the are symmetrical.
5 0
3 years ago
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PLS HELP!!!!!!!!!!!!!
stepladder [879]
First, multiply the top equation by 2 and bottom by -3.
60x+60y=900
-60x-75y=-1035
————————
-15y=-135
—————-
-15=-15
y=9

So the answer should be 9.
6 0
2 years ago
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