A squared +b squared= c squared
a squared+7 squared =10 squared
a squared + 49= 100
Then subtract 49 from 100 which is 51. Then your square root that number which is 7.14143

5 0

3 years ago

Simply the imaginary number square root -45

Paraphin [41]

Answer:

3i $\sqrt{5}$

Step-by-step explanation:

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

and $\sqrt{-1}$ = i

Given

$\sqrt{-45}$

= $\sqrt{9(5)(-1)}$

= $\sqrt{9}$ × $\sqrt{5}$ × $\sqrt{-1}$

= 3 × $\sqrt{5}$ × i

= 3i $\sqrt{5}$

6 0

3 years ago

mrs papica bought 20 cupcakes for her class. one-half of them have chocolate frosting and one-fourth of them have vanilla frosti

Jobisdone [24]

Chocolate- 20×.5= 10 Vanilla-20×.25=5 Strawberry- 20×.25=5 10+5+5=20

8 0

3 years ago