3 years ago

The empty set (or null set) is a subset of _____ set(s

Mathematics

1 answer:

sashaice [31]3 years ago

4 0

The empty set is a subset of EVERY set

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3(k − 99) = –60 k = ______

MArishka [77]

Answer:

k = 79

Step-by-step explanation:

3(k-99) = -60

(k-99) = -20

k= -20+99

k=79

4 0

3 years ago

12 1/4 + 11.14 = <img src="https://tex.z-dn.net/?f=12%20%5Cfrac%7B1%7D%7B4%7D%20%20%2B%2011.14" id="TexFormula1" title="12 \f

Natali5045456 [20]

Answer:

166.25

Step-by-step explanation:

12 1 /4 + 154

166 1/4

665/4 , 166.25

6 0

3 years ago

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Somebody please answer this!

aliya0001 [1]

Answer:

Step-by-step explanation:

4 0

3 years ago

How do I solve this problem? You drive your car on a cold day (20^oF Outside) the engine overheats to about (220^oF). When you p

GaryK [48]

$ln(T- \frac{20}{200})=-0.11t \\ e^{ln(T- \frac{20}{200})}=e^{-0.11t} \\ T- \frac{20}{200} =e^{-0.11t} \\ T-0.1=e^{-0.11t} \\ T=e^{-0.11t}+0.1$
Then, now that we have solved for T, we can evaluate and solve for t=20 minutes.
$T=e^{-0.11t}+0.1 \\ T=e^{-0.11*20}+0.1 \\ T=e^{-2.2}+0.1 \\ T=0.11+0.1 \\ T=0.21$

7 0

3 years ago

I need help solving number 17.

melisa1 [442]

Let x = amount of sales (in dollars)

The salary is $400 and there's an additional 0.06x dollars added on to get to the goal of 790. The equation is therefore

400+0.06x = 790

Let's solve for x

400+0.06x = 790
400+0.06x-400 = 790-400
0.06x = 390
0.06x/0.06 = 390/0.06
x = 6500

The final answer is 6500

This means he must have $6,500 in sales.

8 0

4 years ago