Is there a value of x that makes each of the following equalities true? If there is, find it.
1 answer:
Step-by-step explanation:
- a. √x - 3 = 0 ⇒ √x = 3 ⇒ x = 3² ⇒ x = 9
no solution as √x is a positive value
no solution as √x is a positive value
- d. √x = 0.1 ⇒ x = 0.1² ⇒ x = 0.01
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y+30
Step-by-step explanation:
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the new sum after increase each number by 30 is 15y+450
the new mean 15y+450/15
= y+30
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