3 years ago

Solve this quadratic equation using the quadratic formula. 2x^2 - 2x = 0

Mathematics

1 answer:

lakkis [162]3 years ago

6 0

Answer:

Step-by-step explanation:

The answer is x=27

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Write the number 0.21212121 ... as a fraction

julia-pushkina [17]

Answer:

1.91/9

Step-by-step explanation:

x=0.212121212........ .........1 equation

10x=2.12121212......... ........2 equation

1 equation - 2 equation

9x=1.91

x=1.91/9

therefore 0.212121.....=1.91/9

4 0

3 years ago

2 Do the following calculations

maw [93]

Answer:

a) 93,2255

b)38

c)false

d)18

e)false

4 0

3 years ago

Jim can type 90 words in 2.5 minutes on his cell phone. At this rate,how many words can he type in 7.5 minutes

tiny-mole [99]

Answer:

270

Step-by-step explanation:

90 devided by 2.5 = 36 and 36 x 7.5 = 270

7 0

4 years ago

A hat is on sale for h dollars. The regular price is 7 times as much. Charlie has enough money to buy two hats at the regular pr

Nostrana [21]

Answer:

Charlie can buy 14 hats at the sale price

Step-by-step explanation:

Let

h ----> the sale price of the hat

x ---> the regular price of the hat

we know that

$x=7h$ ----> equation A

Two hats at the regular price is equal to multiply 2 by x

Multiply by 2 equation A both sides

$2x=(7h)*2$

$2x=14h$

2 hats at the regular price cost the same that 14 hats at the sale price

therefore

Charlie can buy 14 hats at the sale price

8 0

3 years ago

I put this into my calculator but it keeps coming out as "error" :/ not sure if it's just my calculator or something with the pr

Triss [41]

Your calculator says error because you cant have a square root of a negative number because there is no solution to that maybe recheck your equation and try again

8 0

3 years ago