Ask question

Ask question

All categories

Y_Kistochka [10]

2 years ago

12

solve quadratic by taking square roots. as=a,-a where a and -a the values you found when when solving. Round to nearest tenth. 2

x^2-9=121

1 answer:

attashe74 [19]2 years ago

6 0

Answer:

8.1

Step-by-step explanation:

2x^2 -9 = 121

+9 +9

2x^2 = 130

/2 /2

x^2 = 65

x= sqrt (65)

x= 8.06225...

x = 8.1

You might be interested in

Sofas being sold for $603 this is a 33% discount from the m what is the original price

fgiga [73]

About $801.99 bc 603X.33 is 198.99 plus 603 is 801.99

6 0

2 years ago

The answers to these questions please

vfiekz [6]

Answer:

Q10 is 13.64 cm3

Q 11 is 221 cm3

Step-by-step explanation:

volume is cross sectional area times height for Q 10

volume is length times width times height for Q 11

5 0

2 years ago

(18)Calculate the volume of this shape

Nikolay [14]

Answer:

108 cm cubed

Step-by-step explanation:

(1/2 of length•height)•width

(1/2 of 6•4)•9

(1/2 of 24) •9

12•9

108

5 0

2 years ago

I need this to be 20 letters so whats 2 +2

Firdavs [7]

Answer: So what is two plus two plus two?

Well let me demonstrate. Take 2 cookies for example, your friend supplements 2 more cookies and there you have it 4 cookies. So two and two cookies are 4 cookies. Thus, 2+2=4

Step-by-step explanation: Hope I helped you out <3

-Carrie

5 0

2 years ago

juilo is paid 1.4 times his normal hourly rate for each hour he works over 30 hours in a week. Last week he worked 35hours and e

Licemer1 [7]

Let x be Juilo's normal hourly rate.

so for the 35 hr week we have:-

30x + 5*1.4x = 436.60

37x = 436.60

x = 436.60 / 37 = $11.80

His normal hourly rate = $11.80

So for a 30 hr week he will earn 11.80 * 30 = $354

So the amount $436.60 is a reasonable figure for a 35 hr week.

4 0

3 years ago