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FromTheMoon [43]
3 years ago
7

find the probability of drawing a diamond 8 through 10 on the first draw, replacing it, and drawing a black card on the second d

raw?
Mathematics
1 answer:
Montano1993 [528]3 years ago
5 0

Drawing an 8, 9 or 10 of diamonds would be 3/52 ( cards out of 52 total cards)

Drawing a black card would be 1/2 ( half the deck is black)

The probability of both happening is 3/52 x 1/2 = 3/104

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pogonyaev
I'm pretty sure it is C

5 0
4 years ago
I’m confused about these questions. Compositions and inverses ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️
Alekssandra [29.7K]

9514 1404 393

Answer:

  1. (f+g)(x) = 2x^2 +4x +2

  2. (f -g)(x) = -2x^2 +4x -4

  5. (f+g)(x) = x^2 +2x -1

  6. (g -f)(x) = x^2 -2x -1

Step-by-step explanation:

None of these are compositions. They are only sums or differences.

  (f±g)(x) = f(x) ± g(x)

__

1. (f+g)(x) = f(x) +g(x) = (4x -1) +(2x^2 +3)

  (f+g)(x) = 2x^2 +4x +2

__

2. (f -g)(x) = f(x) -g(x) = (4x -1) -(2x^2 +3)

  (f -g)(x) = -2x^2 +4x -4

__

5. (f +g)(x) = f(x) +g(x) = (2x) +(x^2 -1)

  (f+g)(x) = x^2 +2x -1

__

6. (g -f)(x) = g(x) -f(x) = (x^2 -1) -(2x)

  (g -f)(x) = x^2 -2x -1

7 0
3 years ago
1. The three salespeople for a local advertising firm are Sara, Kenny, and Leila. Sara sold $3350 in ads, Kenny sold $1368, and
maria [59]

Answer:


Step-by-step explanation:

Sara sold $3350 in ads,

Kenny sold $1368, and

Leila sold $456

(a)

total sale=3350+1368+456=$5174

Sara's fraction=3350/5174=0.6475

Kenny's fraction=1368/5174=0.2644

Leila's fraction=456/5174=0.0881

(b)

total bonus=$150

Sara's bonus=150*0.6475=$97.12

Kenny's bonus=150*0.2644=$39.66

Leila's bonus=150*0.0881=$13.22


7 0
3 years ago
Read 2 more answers
I need help please ​
bija089 [108]

Hey There!

Lets Just Work through your answers,

ⓧ A - An isosceles triangle is a triangle with (at least) two equal sides, so this would not apply to the given triangle.

:) B - A scalene triangle is a triangle in which all three sides have different lengths so this applies to the given triangle. One side measures 10, one measures 11, and one measures 12.1

ⓧ C - A right triangle is a type of triangle that has one angle that measures 90 degrees, which this triangle does not so this does not apply.

ⓧ D - In geometry, an equilateral triangle is a triangle in which all three sides are equal, so this does not apply to the given triangle.

ⓧ E - An obtuse triangle is a triangle with one obtuse angle (greater than 90°) and two acute angles, so this does not apply to the given triangle.

:) F - An acute triangle (or acute-angled triangle) is a triangle with three acute angles less than 90 degrees. So this applies to the given triangle.

In Summary, B & F classify the given triangle correctly.

If you could rate five starts & give brainliest that would be greatly appreciated!

Hope I helped, Have a good day.

4 0
4 years ago
Mickey draws two distinct intersecting lines, p and q. Which conclusions must be true? Select three that apply.
timofeeve [1]

Hey there!

D is the answer.

I was thinking it might be B but no one said the lines crossed each other.

Hope this helps, Jesus loves you!

7 0
3 years ago
Read 2 more answers
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