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Zielflug [23.3K]
3 years ago
15

A box has 5 beads of the same size, but all are different colors. Tina draws a bead randomly from the box, notes its color, and

then puts the bead back in the box. She repeats this 3 times. What is the probability that Tina would pick a red bead on the first draw, then a green bead, and finally a red bead again?
1 over 625
1 over 180
1 over 150
1 over 125
Mathematics
2 answers:
Afina-wow [57]3 years ago
7 0

Answer:

Give the other gut brainly.

Step-by-step explanation:

lesya692 [45]3 years ago
5 0
Probability of first red = 1/5
and Probabiliiy  of the green =1/5 the red again is 1/5. 

Required probability is (1/5)^3  = 1/125

its D
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3 years ago
Joana spent $145 on groceries and after tax the final amount was $156.6. What was the tax rate​
777dan777 [17]

Answer:

8%

Step-by-step explanation:

Tax equals the original amount times the tax rate

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tax = 156.6 - 145

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To change this to percent, multiply by 100%

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4 0
3 years ago
State the equation of the line<br> that is perpendicular to 4x-3y=10<br> through the point (-2,4)
Lynna [10]

The equation of the line  that is perpendicular to 4x - 3y = 10  through the point (-2,4) is y-4=\frac{-3}{4}(x+2)

<u>Solution:</u>

Given, line equation is 4x – 3y = 10  

We have to find a line that is perpendicular to 4x – 3y = 10 and passing through (-2, 4)

Now, let us find the slope of the given line,  

\text { Slope of a line }=\frac{-\mathrm{x} \text { coefficient }}{\mathrm{y} \text { coefficient }}=\frac{-4}{-3}=\frac{4}{3}

We know that, slope of a line \times slope of perpendicular line = -1

\begin{array}{l}{\text { Then, } \frac{4}{3} \times \text { slope of perpendicular line }=-1} \\\\ {\rightarrow \text { slope of perpendicular line }=-1 \times \frac{3}{4}=-\frac{3}{4}}\end{array}

Now, slope of our required line = \frac{-3}{4} and it passes through (-2, 4)

<em><u>The point slope form is given as:</u></em>

\begin{array}{l}{y-y_{1}=m\left(x-x_{1}\right) \text { where } m \text { is slope and }\left(x_{1}, y_{1}\right) \text { is point on the line. }} \\\\ {\text { Here in our problem, } m=-\frac{3}{4}, \text { and }\left(x_{1}, y_{1}\right)=(-2,4)} \\\\ {\text { Then, line equation } \rightarrow y-4=-\frac{3}{4}(x-(-2))}\end{array}

y-4=\frac{-3}{4}(x+2)

Hence the equation of line is found out

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3 years ago
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4 0
3 years ago
what is the equation of the line that passes through the points (−1, 3) and (1, 11)? (5 points) 4x − y = 1 4x y = 1 x − 4y = −13
koban [17]
Find slope
(y2-y1)/(x2-x1) is slope
(11-3)/(1-(-1))=8/2=4
y=4x+b
input a point
(1,11)
x=1
y=11
11=4(1)+b
11=4+b
minus 4 from both sides
7=b

the equatin is
y=4x+7

the closest one
minus 4x from both sides
y-4x=7
times everybody by -1
4x-y=-7

last choice is answer
6 0
3 years ago
Read 2 more answers
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