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3 years ago

12

What is the probability of drawing a spade each time a card is drawn from a deck of 52 cards 3 times, if replacement occurs each

time?

1 answer:

Alex787 [66]3 years ago

8 0

This Is 1/4.
We know That There Are An Equal Amount Of Cards For Each Of The Four Types Of Cards, So This Is 1/4 Probability.

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What is the estimate of 212,514+396,705

Evgesh-ka [11]

Change 212,514 into 215,000.

Change 396,705 into 400,000.

--------

Estimate:

215,000 + 400,000 = 615,000

Therefore:

212,514 + 396,705 ≈ 615,000

4 0

3 years ago

Oliver hits a baseball at 3 feet above the ground with an initial speed of 135ft/sec at an angle of 20 degrees with the horizont

Serhud [2]

Answer:

<u>Option B) the ball lands in front of the wall</u>

Explanation:

<u>1. Find the vertical and horizontal components of the initial velocity</u>

a) Horizontal component:

$v_{0,x}=v_0\times cos(20\º)=135ft/s\times cos(20\º)=126.86ft/s$

b) Vertical component:

$v_{0,y}=v_0\times sin(20\º)=135ft/s\times sin(20\º)=46.17ft/s$

<u>2. Find the time when the ball runs 380 feet horizontally:</u>

$x=v_{0,x}\times t\\\\380ft=126.86ft/s\times t$

$t= (380ft)/(126.86ft/s)=2.995s\approx 3.0s$

<u>3. Find the height of the ball when the time is 3.0s</u>

$y=y_0+v_{0,y}\times t-gt^2/2$

y₀ = 3 ft
g ≈ 32.174 ft/s²

$y=3ft+46.17ft/s\times 3.0s-32.174ft/s^2\times (3.0s)^2/2$

$y=-3.3ft$

This result means that the ball does not reach the wall because it has fallen to the ground (when y = 0) before 3.0s.

5 0

3 years ago

In the equation 6x - 4y = 3, if x = -9, what is the value of y?

KIM [24]

I think is the third one

4 0

3 years ago

What is the solution to this equation? 5x + 15 +2x =24 + 4x

Aleks04 [339]

Answer:

Step-by-step explanation:

5x + 15 + 2x = 24 + 4x

7x + 15 = 4x + 24

3x + 15 = 24

3x = 9

x = 3

8 0

3 years ago

Which of the following values in the set: {3, 57, 6, 8.3, 9, 18} make both

Aleksandr-060686 [28]

Answer:a

Step-by-step explanation:

Sass I’m done with

6 0

3 years ago