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xxTIMURxx [149]

3 years ago

10

What is a null set ?

1 answer:

forsale [732]3 years ago

7 0

The existence proof of the empty set is an absolute gem

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Rewrite by completing the square 2x^2+7x+6=0

Kitty [74]

Answer:

$2x^2+7x+6=0\\\\2(x^2+\frac72x+3)=0\\\\2[x^2+2\cdot x\cdot\frac74+(\frac74)^2-(\frac74)^2+3]=0\\\\2[x^2+2\cdot x\cdot\frac74+(\frac74)^2]-2(\frac74)^2+6=0 \\\\2(x+\frac74)^2-2\cdot\frac{49}{16}+6=0\\\\2(x+\frac74)^2-\frac{49}8+\frac{48}8=0\\\\2(x+\frac74)^2-\frac18=0$

6 0

3 years ago

Evaluate the expression x = 4.<br> 3x + 2

Mekhanik [1.2K]

Answer:

14

Step-by-step explanation:

3(4)+2

12+2

14

7 0

3 years ago

2. A recipe calls for 2 1/3 cups of flour and 1/8 cup of baking soda "you are

Inga [223]

Answer:18.7 or 56/3 cup of flour

Step-by-step explanation:

The solution is in the attached file

5 0

2 years ago

Help math problem asap, DOUBLE POINT REWARD!

Tomtit [17]

It’swould be the second one

8 0

3 years ago

Craig earns $37 for 4 hours as a lifeguard. Henry earns $64.75 for 7 hours as a lifeguard. Who earn more per hour?

Fofino [41]

Answer:

Henry earns more per hour

Step-by-step explanation:

Craig: 37/4 = 9.25

Henry: 65.75/7 = 9.39

4 0

3 years ago

Read 2 more answers