3 years ago

The equation below has TWO solutions: x2 = 16 What are the TWO solutions? X =

1 answer:

6 0

Answer: -4 or 4

Step-by-step explanation:

4*4 is 16

-4*-4 is 16

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kifflom [539]

Answer: £ 8

Step-by-step explanation:

Total hours Lena works from Monday to Friday = 34 hours

Hours she works on Saturdays = 4

Overtime rate of Saturday = 1.5 times her normal rate

Let x be the normal rate.

Then , Her total earning = $34 x + 4 \times(1.5x) =34x+6x=40x$

Since her total earnings for week = £ 320

So,

$320=40x\\\\\Rightarrow\ x=\dfrac{320}{40}\\\\\Rightarrow\ x=8$

Thus, her normal rate of pay per hour = £ 8

7 0

3 years ago

LuckyWell [14K]

(x-5)(x+3)=0
x^2+3x-5x-15=0
(x^2+3x) (-5x-15)
x(x+3) -5(x+3)
x-5=0 x+3=0
x=5 OR -3

8 0

3 years ago

ratelena [41]

Yes they are you can put it in a calculator and see

7 0

4 years ago

Sladkaya [172]

Answer:

Step-by-step explanation:

7 0

4 years ago

tankabanditka [31]

In this case of your exercise you need to know that

4^(1/2) = sqrt(4)

hope this help you

5 0

3 years ago