MATHEMATICS HIGH SCHOOL

What is the measure of side RS ​
what is the measure of side RS ​ - 1

Answers

Answer 1
Answer:

Answer:

57

Step-by-step explanation:

5y - 33 = 57.

Add 33.

5y = 90

Divide by five.

y = 18

5(18) - 33 = 57

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How would you solve the following geometry problem?:∆PQR, find the measure of ∡P.

In Triangle PQR where angle Q is a right angle. QR measures 33 point 8; PQ measures 57 point 6; measure of angle P is unknown.

Answers:
30.4°

35.9°

54.1°

59.6°

What I did:
equation: tan(x) = 33.8/57.6
tan(x)=0.56
But I know that isn't correct.

Answers

What you did is correct. However the one you get is the tangent value of x. you have to find out the tan inverse of that value to find out the actual degree.

tan(x) = 33.8 / 57.6
tan(x) = 0.587
x = tan^-1 (0.587)
x = 30.4 degrees

(6 + 3)2 – 7.2 + 8
answer and work!

Answers

Answer:

18.8

Step-by-step explanation:

Remember PEMDAS!

The graphs of the equations y=2x-7 and y-kx=7 are parallel when k equals

Answers

y=2x-7 \ and \ y-kx=7 \n \n y=2x-7 \ and \ y=kx+7 \n \n two \ lines \ are \ parallel \ if \ their \ slopes \ are \ the \ same : \n \n k= 2

A regular hexagon has sides of 5 feet. What is the area of the hexagon

Answers

a=5ft\n\nArea\ of\ the\ haxagon:A=6\cdot(a^2\sqrt3)/(4)=(3a^2\sqrt3)/(2)\n\nA=(3\cdot5^2\sqrt3)/(2)=(3\cdot25\sqrt3)/(2)=(75\sqrt3)/(2)\ (ft^2)

How do you solve...0=-5t^2+20t+1

Answers

there were 2 solutions that i came up with. Here is the first one. I rearranged the  eqaution by subtracting what is to the right of thr equal sign. Multiply the coefficeint of the first term by the constant 5 x (-1)= -5. Then you would find 2 factors of -5 whose sum equals the coefficient of the middle term which is 20. -5+1= -4 and  -1+5=4.  the eqaution then comes to 5t^2-20t-1=0. you would solve  5t^2-20t-1=0. you would divide both sides of the equal sign by 5. t^-4t-1/5=0. then t^2-4t=1/5. add 4 to both sides of the equation.  so we get 21/5+ 4 + 4t -t^2=21/5. it then comes out to be t^2-4t+t=t-2^2. according to the law of transitivity it is t-2^2=21/5.

 t =(20+√420)/10=2+1/5√ 105 = 4.049 . 

The interior angles in a regular polygon are 140 degrees. How many sides has the polygon? it could be something to do with s=(n-2) x 180

Answers

Yes, it certainly could !  When you first noticed that formula in a book, or when it was given to you in class, did you also notice or learn what it means ?

It means
"The sum of all the interior angles in a polygon" = (number of sides - 2) x 180.

Triangle ........ 3 sides ... (3 - 2) = 1 x 180 = 180° degrees ... 60° each if regular
Quadrilateral . 4 sides ... (4 - 2) = 2 x 180 = 360° degrees ... 90° each if regular
Pentagon ...... 5 sides ... (5 - 2) = 3 x 180 = 540° degrees ... 108° each if regular
Hexagon ....... 6 sides ... (6 - 2) = 4 x 180 = 720° degrees ... 120° each if regular
Sevenagon ... 7 sides ... (7 - 2) = 5 x 180 = 900° degrees ... 128 and 4/7 each if regular
Octagon ........ 8 sides ... (8 - 2) = 6 x 180 = 1080° degrees ... 135° each if regular
Nonagon ....... 9 sides ... (9 - 2) = 7 x 180 = 1260° degrees ... 140° each if regular
180^o-140^o=40^o\n\n360^o:40^o=9\n\nAnswer:This\ a\ regular\ polygon\ has\ 9\ sides.
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