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zheka24 [161]
4 years ago
8

How do I factor quadratics?

Mathematics
1 answer:
nekit [7.7K]4 years ago
6 0

Ok so factoring quadratics is fairly easy once you get the hang of it

So we have a quadratic x^2+x-2

My first question would be what 2 numbers multiply to -2 and add to +1

the answer is 2 and -1

Second question what 2 values multiply to get x^2

the answer x and x

your factored form would be (x-1)(x+2)

This is as far as i can explain there is a whole lot about quadratics to be learned. You have to ask your teacher on more information


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PLEASE help (desperate) :(
mars1129 [50]

Answer:

4= \sqrt{16} \\1.5   = \sqrt{2.25}\\8 = 6^{2} /9*2\\1 = \frac{12 - 2}{6 + 4}\\5 = \sqrt{16 + 9} \\9 = 63/3^{2} +|2|

6 0
3 years ago
Kyla works as a receptionist. Last week she made $236.40 for working 24 hours. About how many hours would she need to work to ea
kow [346]

Answer:

32.99

Step-by-step explanation:(you might have to round) if you have to round it or.. but this is it because

236.40 divided by 24 is 9.85 so

325 divided by 9.85 is 32.99 (you only need 2 decimal places for these kinds of questions because of repeating decimals).

Hope this helps :)

8 0
3 years ago
A rectangle is 3 cm long and 2 cm wide
Nimfa-mama [501]

Answer:

Perimeter = 100mm

Area = 60mm

Step-by-step explanation:

P= (3x2) + (2x2) =10cm

10mm to 1cm

10cm x 10 = 100mm

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= 3 x 2

=6cm

6x10=60mm

7 0
3 years ago
Find 94% of 90! Do not round your awnser. Show your work​
Katen [24]
The answer would be 84.6

You multiply 94 and 90 and then add a decimal point since you can’t go over 90.

That’s how I do it mentally.
4 0
3 years ago
A T-shirt that costs $12 is now on sale for 15% off. What is the sale price of the t-shirt?
anastassius [24]

Answer:

$14.18

Step-by-step explanation:

just multiply 12 with 100 for percentage and divide it by 85 because there was 15 percent off and you'll get the answer

7 0
2 years ago
Read 2 more answers
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