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Citrus2011 [14]
3 years ago
13

900=400+789-680COS A

Mathematics
1 answer:
murzikaleks [220]3 years ago
8 0

Answer:

509cosa

Step-by-step explanation:

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Help me out , plzzzzz!!
natta225 [31]

Answer:

a. 5,040 ways

b. 210 ways

Step-by-step explanation:

a) We want to pick 4 numbers out of 10 given that orders matter

If orders do matter, it will be a permutation problem

Mathematically;

n P r = n!/(n-r)!

In this case, n is 10 and r is 4

Thus, we have it that;

10 P 4 = 10!/(10-4)! = 5,040

b) if orders do not matter

It will be a combination problem

n C r = n!/(n-r)!r!

n = 10 and r = 4

10 C 4 = 10! /(10-4)!4!

= 210

3 0
3 years ago
Use the figure to decide the type of angle pair that describes 6 and 4
kumpel [21]
It’s corresponding angles
3 0
3 years ago
A person x inches tall has a pulse rate of y beats per​ minute, as given approximately by yequals600 x Superscript negative 1 di
tankabanditka [31]

Answer:

a) 5.13beats/min

b) 2.82 beats/min

Step-by-step explanation:

Given the pulse rate of a person modelled by the equation y = 600x^-1/3 for 30≤x≤75

If the height is 39inches, the instantaneous rate of change of pulse rate for the heights will be expressed as;

y = 600(39)^-1/3

y = {600(1/39)}/3

y = 600/39×3

y = 600/117

y ≈ 5.13beats/min

The instantaneous rate for a 39 inches tall person is 5.13 beats per min

b) For a 71inches tall person, the beat rate will be expressed as;

y = 600(71)^-1/3

y = {600(1/71)}/3

y = 600/71×3

y = 600/213

y ≈ 2.82 beats per minute

The instantaneous rate for a 71 inches tall person is 2.82 beats per min

7 0
3 years ago
Bishon needs to sell at least 0.3 of his collection of sports cards to
diamong [38]

Answer:

no because 3/20 is eguivilent to 0.15 whitch is half of 0.3

3 0
3 years ago
Read 2 more answers
If Quamie purchased 5 pencils for 20¢, how much will 20 pencils cost?
4vir4ik [10]

Answer:

80 cents

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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