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juin [17]
2 years ago
14

A box contains five cards lettered A, A, B, C, D. If one card is selected at random from the box and NOT replaced, what is the p

robability that Jack will draw a “D” and then an “A”?
Mathematics
1 answer:
Vlad1618 [11]2 years ago
8 0

Answer:

There is a 1/10 chance you draw an A and then D    10% chance

Step-by-step explanation:

Probablitiy of drawing a D is 1/5, If the card is not replaced, then there are only 4 cards left. Probability of drawing an A is 2/4 (1/2)

1/5 x 2/4

1 x 2 = 2         2/2 =  1

5 x 4= 20     20/2 = 10

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If the expected production volume when there are 120 workers is approximately 131,958 units, which of the following equations wo
tamaranim1 [39]

Answer:

Option 2

Step-by-step explanation:

A 68% prediction interval for the output of 120 workers will be an interval which is of the length +/- 1* standard error of regression. Thus 68% PI is 131958 +/- 14994.93 i.e. option 2

5 0
3 years ago
Triangle ABC with vertices A (-1, 4), B( -4, 1), and C(-1, 1) is reflected across the y-axis and then translated 4 units to the
Anna71 [15]

Given:

Triangle ABC with vertices A (-1, 4), B( -4, 1), and C(-1, 1) is reflected across the y-axis and then translated 4 units to the left to form triangle A’B’C’.

To find:

The coordinates of the vertices of triangle A’B’C’.

Solution:

If triangle ABC reflected across y-axis, then

(x,y)\to (-x,y)

A(-1,4)\to A_1(1,4)

B(-4,1)\to B_1(4,1)

C(-1,1)\to C_1(1,1)

Coordinates of image after reflection across y-axis are A_1(1,4),B_1(4,1),C_1(1,1).

Then triangle translated 4 units to the left to form triangle A’B’C’.

(x,y)\to (x-4,y)

A_1(1,4)\to A'(-3,4)

B_1(4,1)\to B'(0,1)

C_1(1,1)\to C'(-3,1)

Therefore, the vertices of triangle A’B’C’ are A’ (-3, 4), B’ (0, 1), C’ (-3, 1).

Hence, the correct option is B.

6 0
3 years ago
I'm so confused. If you answer, please explain.
Ahat [919]

Answer:

its SAS

Step-by-step explanation:

HF = GF

HGJ angle = FGJ angle

JG = JG

3 0
3 years ago
What algebraic expression models the word phrase three fewer than the sum of c and d?
Serjik [45]
" the sum " means add

(c + d) - 3 <== ur expression
4 0
3 years ago
Read 2 more answers
Find the inequality represented by the graph.
DaniilM [7]

From the graph,

y =  \frac{1}{2}x  + 2

But this one is inequality so you gotta remember this:

When y > x/2+2

- The shade/region is above the graph itself.

When y < x/2+2

- The shade/region is below the graph.

Therefore, the inequality as shown in the picture is

y >  \frac{1}{2} x + 2

6 0
3 years ago
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