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3 years ago

I need help! Algebra 2 homework and please explain the work :) (Part 3)

Mathematics

1 answer:

motikmotik3 years ago

8 0

Answer:

Probability of choosing a Diamond= 9/26

Choosing a card that is not a club is=19/26

Step-by-step explanation:

These are the answers because...

Step one Add up all of the rows. 5+9+7+5=26
Step two, To find the probability of diamonds we need to take the total number of all the rows which is 26. And the number of diamonds which is 9. Then put it into a fraction 9/26
Step three to find the probability of choosing a card that is not a club, we would have to add up all the rows except the clubs which is 19, then out it over the total number which is 26. So 19/26
Hope this helped Please comment below on how you think my answer is. I would appreciate it Brainly

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A 10-ft vertical post casts a 14-inch shadow at the same time a nearby cell phone tower cast a 119-ft shadow. How tall is the ce

Yakvenalex [24]

Answer:

The cellphone towers height is 1020 ft.

Step-by-step explanation:

This question is solved using proportions, by a rule of three.

A 10-ft post casts a 14-inch shadow.

Each feet has 12 inches, which means that a post with 10 feet will cast a 14/12 = 1.167 ft shadow. How tall is the cell-phone tower with a 119-feet shadow?

10 feet post - 1.167 ft shadow

x feet tower - 119 feet shadow

Applying cross multiplication:

$1.167x = 10*119$

$x = \frac{1190}{1.167}$

$x = 1020$

The cellphone towers height is 1020 ft.

8 0

3 years ago

A swim meet has 13 contestants signed up for the 100-meter butterfly event. The first heat has 6 swimmers. How many different wa

tino4ka555 [31]

Answer:

6 swimmers in the first heat can be arranged in 1716 different ways.

Step-by-step explanation:

A swim meet has 13 contestants signed up. To calculate the arrangement of first 6 swimmers in first heat we will use combinations because order doesn't matter.

So to select 6 swimmers out of 13 contestants number of different ways

= $^{13}C_{6}$

= $\frac{13!}{(6!)(13-6)!}$

= $\frac{13\times 12\times 11\times 10\times 9\times 8\times 7!}{6!\times 7!}$

= $\frac{13\times 12\times 11\times 10\times 9\times 8}{6\times 5\times 4\times 3\times 2\times 1}$

= $\frac{1235520}{720}$

= 1716

Therefore, 6 swimmers in the first heat can be arranged in 1716 different ways.

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3 years ago

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melomori [17]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the difference between the average and the geometric mean?

sveticcg [70]

The difference between the two is: Your Mom!

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4 years ago

31.8 miles/hr= ? Feet/sec

PSYCHO15rus [73]

1 mi = 5280 ft
1 h = 3600 s

therefore:

$31.8\ \dfrac{mi}{h}=31.8\cdot\dfrac{5280}{3600}\ \dfrac{ft}{s}=46.64\ \dfrac{ft}{s}$

Answer: 31.8 mi/h = 46.64 ft/s

6 0

3 years ago