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Mashutka [201]
3 years ago
6

Joelle would like to tip her hairdresser 20%. If her haircut was $38.00, which expression should she use to find the tip amount

Mathematics
2 answers:
givi [52]3 years ago
8 0
B. (0.2)(38) is the correct answer
Citrus2011 [14]3 years ago
6 0

Answer:

the expression is (0.2)(38)

Step-by-step explanation:

Joelle would like to tip her hairdresser 20%.

Haricut bill was $38.00.

To find the tip amount, we multiply the tip percentage by the bill amount

tip percentage is 20%. To remove percentage we divide by 100

\frac{20}{100} =0.2

Tip amount =0.2 \ times \ 38

So the expression is (0.2)(38)

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Which two points or 4 units from K?<br> a) I and M<br> b) J and L<br> c) H and N<br> d) G and O
telo118 [61]

Answer:  the correct option is

(d) G and O.

Step-by-step explanation:  We are given to find the two points that are at a distance of 4 units from point K.

We have

Distance of point J and L point K is given by

d=-3-(-4)=-2-(-3)=1~\textup{units}.

Distance of point I and M point K is given by

d=-3-(-5)=-1-(-3)=2~\textup{units}.

Distance of point H and N point K is given by

d=-3-(-6)=0-(-3)=3~\textup{units}.

Distance of point G and O point K is given by

d=-3-(-7)=1-(-3)=4~\textup{units}.

Thus, the required point are G and O.

Option (d) is CORRECT.

5 0
4 years ago
Read 2 more answers
What's is x - 4 = - 7
shtirl [24]
X would be equal to -3
in other words x=-3
7 0
3 years ago
Plot the point whose polar coordinates are given. Then find the Cartesian coordinates of the point. (a) (5, 3π/2) (x, y) = (b) (
Vlad1618 [11]

Answer:

A)(5,\frac{3\pi}{2})=(0,-5)\:B)(\frac{3}{2} , \frac{\pi}{4} ) \Rightarrow (\frac{3\sqrt{2}}{4} ,\frac{3\sqrt{2}}{4} )\:C)(-1,\frac{\pi}{6})= (\frac{\sqrt{3}}{2},\frac{1}{2})

Step-by-step explanation:

1) Check the Polar Coordinates on the graph.

2) A polar coordinate is given in (r,\theta) Let's transform each polar coordinate into Cartesian one. Considering:

A)

x=rcos\theta\\y=rsin\theta\\

A) (5,\frac{3\pi}{2})\\cos(\theta)=\frac{x}{5}\\cos(\frac{3\pi}{2})=\frac{x}{5}\:Cross\: Multiplying\\x=5 cos(\frac{3\pi}{2})\\x =5 cos(0)\:x=0\\sin(\frac{3\pi}{2})=\frac{y}{5}\\y=5sin(-1)\\y=-5\\(0,-5)

B) (b) (3/2 , π/4)

B) (\frac{3}{2},\frac{\pi}{4})\\cos(\theta)=\frac{x}{\frac{3}{2}}\\\frac{3}{2}cos(\frac{\pi}{4})=x\:Cross\: Multiplying\\x=\frac{3}{2}*\frac{\sqrt{2}}{2}\\x =\frac{3\sqrt{2}}{4} \approx 1.06

y=\frac{3}{2}sin(\frac{\pi}{4})\Rightarrow y =\frac{3\sqrt{2}}{4}

B)(\frac{3}{2} , \frac{\pi}{4} ) \Rightarrow (\frac{3\sqrt{2}}{4} ,\frac{3\sqrt{2}}{4} )

C) (c) (−1, −π/6)

C) (-1,-\frac{\pi}{6})\\cos(\theta)=\frac{x}{-1}\\-cos(\frac{-\pi}{6})=x\:Cross\: Multiplying\\x=\frac{\sqrt{3}}{2}

(-1,-\frac{\pi}{6})\\sin(\theta)=\frac{x}{-1}\\-sin(\frac{-\pi}{6})=x\:Cross\: Multiplying\\x=\frac{1}{2}

C)(-1,\frac{\pi}{6})= (\frac{\sqrt{3}}{2},\frac{1}{2})

6 0
3 years ago
6,500cL= L<br> please help i need the answer
Inga [223]
65 liters  <span>6,500cL= 65 liters</span>
4 0
3 years ago
Read 2 more answers
Uh yeah so this again lol
Andrej [43]

Answer:

follow the insructions from the answer before

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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