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Vesnalui [34]
3 years ago
12

Please I need help on these two

Mathematics
1 answer:
KIM [24]3 years ago
5 0

Question 1: C, x < -8      <---

Question 2: A, n>= -4

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bogdanovich [222]
I believe it’s c good luck!
4 0
2 years ago
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How to covert km to cm
alisha [4.7K]

Answer:

1 kilometre =

100000 centimetres

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formula = multiply the km value by 100000

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3 0
3 years ago
Solve using elimination<br><br> -3-X=0<br> -3y=-3-2x
ryzh [129]
<h2>The solution is (x, y) = (-3, -1)</h2>

<em><u>Solution:</u></em>

<em><u>Given, system of equations are:</u></em>

-3 - x = 0 --------- eqn 1

-3y = -3 - 2x -------- eqn 2

From eqn 1,

- 3 - x = 0

<h3>x = -3</h3>

<em><u>Substitute x = -3 in eqn 2</u></em>

-3y = - 3 - 2(-3)

-3y = -3 + 6

-3y = 3

<h3>y = -1</h3>

Thus the solution is (x, y) = (-3, -1)

7 0
3 years ago
If a cell has a volume of 3nm, what are the surface area and the volume of the cell?
harkovskaia [24]
A cell has a radius: r = 3 nmThe surface area of a cell:A = 4 r² π = 4 · 3² π = 4 · 9 π = 36 π nm²The volume of a cell:V = 4/3 r³ π = 4/3 · 3³ π = 4 · 9 π = 36 π nm³Answer: The surface area is 36 π nm² and the volume is 36 π nm³.
7 0
2 years ago
Which expression is equivalent to the following complex fraction?
Sedbober [7]

Answer:

  \dfrac{2(y-2x)}{3y-5x}

Step-by-step explanation:

When you simplify the numerator and the denominator, you find they both have denominators of xy. So, the ratio of those is the ratio of their numerators.

  \dfrac{\dfrac{2}{x}-\dfrac{4}{y}}{\dfrac{-5}{y}+\dfrac{3}{x}}=\dfrac{\left(\dfrac{2y-4x}{xy}\right)}{\left(\dfrac{-5x+3y}{xy}\right)}=\dfrac{2y-4x}{-5x+3y}\\\\=\boxed{\dfrac{2(y-2x)}{3y-5x}}

8 0
3 years ago
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