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Andre45 [30]
3 years ago
14

There is a stack of 10 cards, each given a different number from 1 to 10. Suppose we select a card randomly from the stack, repl

ace it, and then randomly select another card. What is the probability that the first card is an odd number and the second card is greater than 6? Write your answer as a fraction in simplest form
Mathematics
1 answer:
VikaD [51]3 years ago
8 0
Sample space={1,2,3,4,5,6,7,8,9,10} = 10 total outcomes

a) Favorable odds number = {1,3,5,7,9} = 5 favorable outcomes
b) Favorable > 6 = {7,8,9,10} = 4 favorable outcomes

P(drawing ODD) = 5/10 = 1/2
P(drawing >6) = 4/10 = 2/5

P(drawing odd AND > 6) = P( odd ∩ > 6) = (1/2).(2/5) = 2/10 = 1/5

And P( odd ∩ > 6) = 0.2
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Find an approximate equation y=ab^x with the coordinates (0, 4) (3, 95)
bogdanovich [222]
We have y=ab^{x}

Plug in (0, 4):
4=ab^{0}⇒4=a
So we now have a

Plug in (3, 95):
95=4b^{3}
⇒b^{3}=\frac{95}{4}
⇒b=\sqrt[3]{\frac{95}{4}}
which is approximately 2.874

So we get
y=4(\sqrt[3]{\frac{95}{4}})^{x}
or, in decimal form,
y=4*2.874^{x}
7 0
3 years ago
You have performed a dihybrid cross of plants and got the following data: 206 purple tall, 65 white tall, 83 purple short, 30 wh
vichka [17]

tell me the method.......

4 0
3 years ago
Answers please??????
11Alexandr11 [23.1K]
The area of the sector is
.. Asector = (1/2)r^2*θ = (1/2)*(8.35 ft)^2*(π*260°/180°) ≈ 158.195 ft^2

The area of the triangle is
.. Atriangle = (1/2)r^2*sin(θ) = (1/2)*(8.35 ft)^2*sin(100°) ≈ 34.332 ft^2

The shaded area is
.. A = Asector +Atriangle
.. = 158.195 ft^2 +34.332 ft^2
.. ≈ 192.5 ft^2
8 0
3 years ago
A circle has an area of 40 square meters. Which answer is closest to the measure of its diameter?
fomenos
D. 7.1
A circle has an area of 40 square meters. Which answer is closest to the measure of its diameter?
7 0
3 years ago
Read 2 more answers
100 POINTS AND BRAINLIEST: The short sides of a rectangle are 2 inches. The long sides of the same rectangle are three less than
Wittaler [7]

Answer:

x= "a certain number of inches"

side a= x-3

side b= 2 inches

multiply:

Area= a(b)

A= (x-3)2

A= 2(x-3)

distribute:

A= 2(x-3)

A= (2*x) + (2*-3)

A= 2x-6

Area= 2(x-3)

Area= 2x-6

Step-by-step explanation:

The area of the rectangle is equal to the multiple of its two sides this is equal to two inches times an expression three less than a certain number "x". Using the distributive property, we can solve this expression further to find that the area of this rectangle is also equal to six less than doubling a certain number x.

5 0
3 years ago
Read 2 more answers
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