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Lemur [1.5K]
2 years ago
9

Which of the following equations has a solution that is negative?

Mathematics
1 answer:
drek231 [11]2 years ago
3 0

Answer:

b. – 0.4(x + 1.6) = 1.6

Step-by-step explanation:

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5 0
3 years ago
X+4 divided by x^2+16<br><br> Why can't it be simplified?
KonstantinChe [14]
Let's try to simplify x^2 + 16. It's a sum of two squares:

x^2 + 16 = 0

x^2 = -16

The problem is, we can't take a square root of a negative. This is where imaginary numbers come in.

Remember that square roots have a plus or minus symbol outside:

±√-16 = ±4i

Our two roots are 4i and -4i. Therefore, the trinomial simplifies to:

(x + 4i)(x - 4i)

If we attempt to divide x + 4 by these two binomials, we will find that 4 and 4i are not like terms. Therefore, we can't simplify this expression.
8 0
3 years ago
If Tom has 3 different sweaters, and 5 different pairs of pants, how many different combinations could he wear?
Vladimir [108]
Check the tree diagram in the picture.

Tom could pick Pants 1 (P1), then Sweater 1, 2 or 3. So 3 combinations

Similarly if we picked P2, P3, P4 or P5 we would have 3 combinations per each.

In total we have 5*3=15 different combinations.


Answer:15

7 0
3 years ago
HELP QUICKLY what is the equation of the line through (-10,-7) and (-5,-9)
hichkok12 [17]
This is your answer

7 0
3 years ago
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What is the factorization of the expression below 16x2 - 49?
mrs_skeptik [129]

16 {x}^{2}  - 49 \\  =  {(4x)}^{2} -  {7}^{2}   \\  = (4x - 7)(4x + 7)
7 0
3 years ago
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