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3 years ago

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steve earns extra money babysitting , he charges $27.00 for 4 hours and $47.25 for 7 hours. enter an equation to represent the r

elationship . let x represent the numbers of hours Steve babysits and y represent the amount he charges

1 answer:

Rina8888 [55]3 years ago

4 0

Answer:

y=6.75x

Step-by-step explanation:

he xharges 6.75 per hour, so 6.75x equals the total price, y

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What does A = and what does B =

krek1111 [17]

Answer:

Step-by-step explanation:

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<UWV = 80° which is angle A

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In the right ΔABC, AN is the altitude to the hypotenuse. Find BN, AN, and AC, if AB=2√5 in and NC= 1 in.

kipiarov [429]

Answer:

$BN=4\ \text{in}$

$AN=2\ \text{in}$

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Step-by-step explanation:

Let $BN=x$

$BC=c$

$NC=y=1\ \text{in}$

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We have the relation

$\dfrac{BC}{AB}=\dfrac{AB}{BN}\\\Rightarrow \dfrac{c}{a}=\dfrac{a}{x}\\\Rightarrow c=\dfrac{a^2}{x}\\\Rightarrow x+1=\dfrac{a^2}{x}\\\Rightarrow x^2+x=20\\\Rightarrow x^2+x-20=0\\\Rightarrow x=\frac{-1\pm \sqrt{1^2-4\times 1\times \left(-20\right)}}{2\times 1}\\\Rightarrow x=4,-5$

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$h=\sqrt{a^2-x^2}\\\Rightarrow h=\sqrt{(2\sqrt{5})^2-4^2}\\\Rightarrow h=2\ \text{in}$

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3 years ago

When is it better to use a table in math

Galina-37 [17]

Answer:

in certain questions

Step-by-step explanation:

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3 years ago

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Vlada [557]

Answer:

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Step-by-step explanation:

So, they are 12 basketball players in total

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2 - 175 - This is 1/6

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4- 185 - This is 1/3

3 - 190 - This is 1/4

1 - 195 - This is 1/12

75% (Or 3/4) have heights above 180

Therefore, the answer is B

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The correct answer is
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