MATHEMATICS COLLEGE

the area of a parallelogram PQRS is 172cm^2. PQ=21cm, calculate the possible values of angle PQR, IF QR=9cm​

Answers

Answer 1
Answer:

Step-by-step explanation:

i hope i can help

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Related Questions

In a study of plant safety, it was found that the time it took for machine operators to react to a warning light was normally distributed with a mean 1 second and standard deviation 0.3 second. Suppose a warning light visible to 4 operators goes on. What is the probability that the average (mean) reaction time of the 4 operators exceeds 1.25 seconds?
Pls help me with this and show any work
Please help!! Thank youu
By what factor is z multiplied to get z1?
Which of the following is a polyhedron? Check all that apply.A. PrismB. PyramidC. ConeD. Polygon

you need to solve a system of equations. You decide to use the elimination method. Which of these is not allowed? 2x-3y=12 and -2x+y=8

Answers

Sorry this is so late.

The answer is "Add the left side of equation 2 to the left side of equation 1"

Answer:

bro!! I'm on the same question on ap3x!!

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Step-by-step explanation:

What is the answer? pls help

Answers

Answer:

m = undefined

Step-by-step explanation:

m = 9 - 6 / 5 - 5

m = 3 / 0

m = undefined

Answer:

undefined

Step-by-step explanation:

Because x is constantly 5, it is a straight line going up and down. This type of graph has an undefined slope.

50 POINTS.Tell whether the ordered pairs is a solution of the system of linear inequalities. 4. (8, −2); y −6
8. (1, 3);2x + y −4, 3x − y ≤ 3

Answers

Answer:

4, or it could be 8 but mostly 4

Step-by-step explanation:

Nicole just lit a new candle and then let it burn all the way down to nothing. Theinitial length of the candle was 12 inches and the candle burned at a rate of 1.5 inches
per hour. Make a table of values and then write an equation for L, in terms oft,
representing the length of the candle remaining unburned, in inches, t hours after the
candle was lit.

Answers

Answer: first one is 12 then second one is 10.5 then the third 9 then the fourth one is 7.5

Step-by-step explanation:

A disease has hit a city. The percentage of the population infected t days after the disease arrives is approximated by ​p(t)equals7 t e Superscript negative t divided by 13 for 0less than or equalstless than or equals39. After how many days is the percentage of infected people a​ maximum? What is the maximum percent of the population​ infected?

Answers

Answer:

t = 13 days

p(13) = 33.47%

Step-by-step explanation:

p(t) is the percentage of the population infected:

p(t) = 7*t*e∧(-t / 13)

where    0 ≤ t ≤ 39 days

we can apply p'(t) = 0  to get number of days where the percentage of infected people is maximum:

p'(t) = (7*t*e∧(-t / 13))' = 7*(t*e∧(-t / 13))' = 7*((t)'*e∧(-t / 13)+t*(e∧(-t / 13)') = 0

⇒  7*(1*e∧(-t / 13)+t*e∧(-t / 13)*(-1 / 13)) = 7*e∧(-t / 13)*(1 - (t / 13)) = 0

∴  1 - (t / 13) = 0    ⇒    t = 13 days

then we get the maximum percent of the population​ infected as follows

p(13) = 7*13*e∧(-13 / 13)

⇒  p(13) = 33.47%

Would you use the Law of Sines or the law of cosines to solve a triangle if. given all three sides of the triangle?a. the Law of Sines
b. the Law of Cosines​

Answers

Answer:

b. \displaystyle Law\:of\:Cosines

Step-by-step explanation:

You would use this law under two conditions:

  • One angle and two edges defined, while trying to solve for the third edge
  • ALL three edges defined

Hence, you have your answer.

* Just make sure to use the inversefunction towards the end, or elce you will throw your answer off!

_______________________________________________

Now, you would use the Law of Sines under three conditions:

  • Two angles and one edge defined, while trying to solve for the second edge
  • One angle and two edges defined, while trying to solve for the secondangle
  • ALL three angles defined [of which does not occur very often, but it all refers back to the first bullet]

* I HIGHLY suggest you keep note of all of this significant information. You will need it going into the future.

I am delighted to assist you at any time.

Answer:

Conditions for SINE RULE:

  1. If two angles and any side is given.
  2. If two sides and an angle opposite one of the side is given.

Conditions for COSINE RULE:

  1. If two sides and an inclined angle is given.
  2. If all the three sides are give.

Step-by-step explanation:

Side is the number in m/cm.

Angle is the number with degree/in degree. Like this: ° ° °

With all these, it means you should COSINE rule.
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