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Sedbober [7]
3 years ago
10

Mark practices his guitar 3/4 hours each day. How many hours does he practice in seven days?

Mathematics
1 answer:
Mashutka [201]3 years ago
6 0
3/4 *7
or
0.75*7
The answer is 5.25
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Anwar selects a playing card at random from the following 666 cards:
dalvyx [7]

Answer:

We have 6 cards.

9 of hearts

5 of spades

6 of hearts

2 of spades

4 of hearts

7 of hearts.

A is the event where Anwar selects an even numbered card.

B is the event where she choses a heart.

we have 3 even cards (and two of them are hearts)

we have 4 hearts (2 of them are even)

The probability of event A is Pa = 3/6 = 1/2

the probability of event B is = Pb = 4/6 = 2/3

The probability of event A and Event B is the number of heart cards with even numbers, that are 2 divided the total number of cards:

Paandb = 2/6 =  1/3

the probabilty of A if we know that B is true:

P(AIB) = 2/4 = 1/2 (this is because we have 4 hearts, and we know that 2 of those 4 cards are even)

the probability of B if we know that A is true:

P(BIA) = 2/3 (this is because we have 3 even cards, and 2 of them are hearts)

3 0
3 years ago
Which of the following proportions can be used to prove AE || DK in the proof below? Select all that apply.
Galina-37 [17]

Answer: DA:FA=KE:EF, DF:DA=KF:KE and FA:DA=EF:KE are correct.

Explanation: Since, \triangle EFA and \triangle KFD are similar triangles.

Because, \angle FAE= \angle FDK and \angle FEA= \angle FKD (because EA and KD are parallels. And, \angle F is common angle for these triangles.

Therefore, according to the property of similar triangles.

FE:EK= FA:AD, FE:FK=FA:FD and DF:DA=KF:KE .

Thus, first, second and third options are correct.

5 0
3 years ago
Read 2 more answers
Who is galactus devourer of worlds
Virty [35]

Answer:

Galactus is far and away the more powerful villain in Marvel lore. They don't call him the Devourer of Worlds for nothing. He's a cosmic villain who literally eats planets to sustain himself. He first appeared in Marvel's Fantastic Four comics in the late 60's and is still one of the brand's toughest villains.

Step-by-step explanation:

6 0
2 years ago
A woman weighed 100 pounds 5 years ago. This year, the woman weighs 115 pounds. What percent increase is this?
grandymaker [24]

Answer:

15 Percent

Step-by-step explanation:

4 0
3 years ago
What type of triangle is pictured?
wariber [46]
B. Acute and isosceles
Since the angle is less than 90 degrees and it has two equal sides
7 0
3 years ago
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