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zlopas [31]
3 years ago
10

You select a card at random from the cards that make up the word REPLACEMENT. On each card, there is 1 letter. Without replacing

the card, you choose a second card. Find the probability of choosing a vowel and then not a vowel.
Mathematics
1 answer:
Ksivusya [100]3 years ago
5 0
Replacement.....4 vowels, 7 consonants...total of 11 letters

P(vowel) = 4/11
without replacing
P(not a vowel) = 7/10

P(both events) = 4/11 * 7/10 = 28/110 reduces to 14/55
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The number z times 4.5 is 6.75.
krok68 [10]
Z=1.5

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6 0
3 years ago
Suppose that the amount of algae in a pond doubles every 4 hours. If the pond initially contains 50 pounds of algae, how much al
777dan777 [17]

Answer:

400 pounds

Step-by-step explanation:

there is 3 groups of 4 in 12, so 50 x 2 = 100, that's once, 100 x 2 is 200. 200 x 2 is 400, so there's 400 pounds.

3 0
3 years ago
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Can someone help me with this ????
fenix001 [56]

Answer:

A.

(\frac{3}{3+5})(2 - (-14))+ (-14)

Step-by-step explanation:

Given

Ratio = 3:5

Q = -14

S = 2

Required

Which solution uses (\frac{m}{m+n})(x_2 - x_1)+ x_1

From the given parameters;

m:n = 2:5

m = 2\ and\ n = 5

x_1 = -14\ and\ x_2 = 2

Substitute the above values in (\frac{m}{m+n})(x_2 - x_1)+ x_1

This gives:

(\frac{m}{m+n})(x_2 - x_1)+ x_1

(\frac{3}{3+5})(2 - (-14))+ (-14)

<em>From the list of given options, only option A uses the given form of the formula...</em>

6 0
3 years ago
A train travels 18 km in 30 minutes.Find the speed of the train in km/h
anyanavicka [17]

Step-by-step explanation:

s=d/t

s=18/30

s=3/5km/h

3 0
3 years ago
Calculate the acceleration of a moving object, given that the object is 500 g and has a a force of 6.5 n
ratelena [41]

Hello!

\large\boxed{a = 13m/s^{2}}

Use the equation F = m · a to solve where:

F = total force (N)

m = mass (kg)

a = acceleration (m/s²)

We are given the force and mass, so we can plug these values into the equation to solve.

However, mass is used in kilograms, so we must convert from grams to kilograms:

1 kg = 1000 grams

Convert using dimensional analysis or proportions:

500 g* \frac{1 kg}{1000g}  = 0.5kg

Plug in the force and mass to solve:

6.5 = 0.5(a)

Divide both sides by 0.5 (Multiply by 2)

a = 13 m/s²

7 0
3 years ago
Read 2 more answers
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