Solution: We are given:
We know that a usual values of the test scores falls within 2 standard deviation from the mean.
Therefore, the minimum usual test score is:
The maximum usual test score is:
Therefore, the minimum and maximum “usual” values of the test scores are:
65.4 and 90.6
Answer:
The domain is part of the definition of a function. For example, the domain of the function f(x)=√x f ( x ) = x is x≥0 x ≥ 0 . The range of a function is the set of results, solutions, or ' output ' values (y) to the equation for a given input.
Step-by-step explanation:
I DONT HAVE EXPLINATION
A² + b² = c²
c² = 10² + 3²
c² = 109
c = √109
c = 10.44 units (nearest hundredth)
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Answer: The hypotenuse is 10.44 units.
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Hello there.
<span>1. Lucy has a jewelry business. To make a certain necklace, she spends $3.38 on materials and $5.57 on labor. She then sells the necklace for $15.99. Lucy’s profit on the necklace is equal to the sale price minus the cost of materials and labor.
</span><span>
(a)How much profit does Lucy earn when she sells a necklace? What fraction of the sale price of the necklace is profit? Record your answer as a fraction using whole numbers.
</span>the fraction of the sale price of this necklace would be (704/1599).
<span>c) Lucy collected $223.86 selling necklaces at a craft fair. How many necklaces did Lucy sell? How much profit did she earn?
</span>223.86/15.99=14 necklaces. 14(7.04)=$98.56 of profit.
Answer:
D
Step-by-step explanation:
11/3 x 6/7 x 131/13 =
8646/273 =
31.7