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3 years ago

Which answer choice is correct?

Mathematics

1 answer:

lana66690 [7]3 years ago

5 0

I’m pretty sure it is A

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What is the length of PQ⎯⎯⎯⎯⎯?

Otrada [13]

Answer: ≈ 5.2

Step-by-step explanation:

You're gonna want to use the Law of Cosines to solve:

c² = a² + b² -2abcos(R)

c² = 6² + 9² - 2(6)(9)cos(34°)

c² = 36 + 81 - 108cos(34°)

c² = 117 - 108(.82904)

c² = 27.46368

√c² = √27.46368 => 5.2405 = 5.2

7 0

3 years ago

An airplane takes off at 12 1/2 miles south of a city and flies due north at a constant speed of 170 mph. What is the planes pos

stealth61 [152]

41 hour = 60 minutes

45 min / 60 min = 0.75 hour

170 mph * 0.75 hr = 127.5 miles flown

127.5 - 12.5 = 115

the plane is 115 miles north of the city

3 0

4 years ago

The numbers 0 through 9 are used in code groups of four to identify an item of clothing. Code 1083 might identify a blue blouse,

choli [55]

Answer: 5040

Step-by-step explanation:

Given : Number of choices to make a four digit code ( 0 to 9)= 10

If repetition is not allowed , then we use Permutations to find the number of different code groups can be designed.

The number of permutations of n things , taking r at a time is given by :-

$^nP_r=\dfrac{n!}{(n-r)!}$

Then, the number of permutations of 10 numbers , taking 4 at a time is given by :-

$^{10}P_{4}=\dfrac{10!}{(10-4)!}\\\\=\dfrac{10\times9\times8\times7\times6!}{6!}\\\\=\dfrac{10\times9\times8\times7}{1}\\\\=5040$

Hence, the number of different code groups can be designed= 5040

5 0

4 years ago

Shereda bought several roses and carnations. The roses cought 15 dollars and carnations cost 8 dollars. Shereda bought a total o

bonufazy [111]

Answer:

8 roses

Step-by-step explanation:

$15 * 8 roses = $120 for roses

$ 8 * 9 carnations = $72 for carnations

9 carnations + 8 roses = 17 flowers

$120 + $72 = $192

5 0

3 years ago

Read 2 more answers

Round place value of 2 in 234,890

nikklg [1K]

The two is in the ➡ hundred thousand

4 0

4 years ago