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forsale [732]
3 years ago
7

A set of cards has 8 red cards, 6 blue cards, and 1 green card. Paula chooses a card without looking. What is the probability th

at Paula will choose a red card?
Mathematics
1 answer:
3241004551 [841]3 years ago
5 0

Answer:

8/15 = 0.53 = 53%

Step-by-step explanation:

The probability is the number of chances divided by the total number of cards. The total number of cards is 8 + 6 +1 = 15. There are 8 red cards and therefore 8 chances to get red.

8 out of 15 cards is 8/15. The probability is 8/15.

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The coordinates for three points of a rectangle are (2, 6) (2, 9) and (8, 6). What is the coordinate for the fourth point in the
saw5 [17]

Answer:

(8,9)

Step-by-step explanation:

Given

A = (2,6)

B = (2,9)

C = (8,6)

Required

Determine the 4th point

The coordinate point of a horizontal or a vertical rectangle is given as:

(x1,y1), (x2,y2), (x3,y3), (x4,y4)

Where:

x_1 = x_2        x_3 = x_4         y_1 = y_3        y_2 = y_4

So, we have:

A = (2,6) --- (x_1.y_1)

B = (2,9) ---- (x_2.y_2)

C = (8,6) ---- (x_3,y_3)

Using the above equations:

x_3 = x_4=8        

y_2 = y_4 = 9

Hence, the coordinate of the 4th point is:

(x_4,y_4) = (8,9)

4 0
3 years ago
What is the slope of the line with equation y−3= -1/2 (x−2)?
Lisa [10]
M = - 1/2 should b the answer
7 0
2 years ago
A classmate wrote the solution to the inequality |-4x + 1| > 3 as show below. Describe and correct the error.
andrezito [222]

Answer:

See below.

Step-by-step explanation:

The last step is incorrect. When we divide both sides by a negative the inequality is flipped. The answer is x < -1/2.

Also they  omitted  the other possibility that the expression in the vertical lines could be negative.

We also have the inequality

- 4x + 1 < - 3

-4x < -4

x > 1.

8 0
3 years ago
Help please it would help my grade alot
Alexxandr [17]

Answer:

It cooled 58.4 degrees

Step-by-step explanation:

T(t) = 68 + 144e ^(-.052t)

We want to find the value when t= 10

T(10) = 68 + 144e ^(-.052*10)

        = 68 +85.611

 T(10)         =153.611

We also need to know

T(0)= 68 + 144e ^(-.052*0)

       =68+144

        =212

We want to know how much it cools

That would be the temperature at  time 0 minus the temperature at  time 10


T(0) - T (10)

212-153.611

58.389

To the nearest tenth

58.4 degrees

3 0
3 years ago
Which of the following orderd pairs is a solution of 3x+2y=-19<br>7,-1<br>6,-7<br>-6,-7<br>-7,1​
mr Goodwill [35]
-7,1 would be your answer.
3 0
3 years ago
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