MATHEMATICS HIGH SCHOOL

Perpendicular lines form a 90° angle. True
or false?

Answers

Answer 1
Answer:

Answer:

True

Step-by-step explanation:
Answer 2
Answer:

Answer:

it really just depends

Step-by-step explanation:

Related Questions

Can someone help me on this im confused.. -3x-10=32
What is this percent of change 40;72
Preparation for the homecoming football game, members of the student body are painting the spirit rock in front of the school. If Angela works alone, it will take her five and a half hours. If Brandon works alone, it will take him 7 hours. If they work together, it will take them approximately hours ?
If two circles have the same diameter, do they have the same circumference?
What number must be added to 36 to obtain −12

What is the volume of this sphere that has a radius of 6 in

Answers

The volume of any sphere is

         V = (4/3) x (pi) x (radius of the sphere)^3 .
Volume=(4)/(3) \pi radius^3\n\nradius=6in\n\nVolume=(4)/(3) \pi (6)^3=(4 \pi*216 )/(3)=(864 \pi )/(3)=288 \pi in^3\n\nVolume\ is\ equal\ to\ 288 \pi in^3.

I need help with this one

Answers

Answer:

9

Step-by-step explanation:

93808.57316 rounded to the nearest ten thousand is 90000

Answer:

9

Step-by-step explanation:

How to factor 16x²-72xy+81y²

Answers

16x^2-72xy+81y^2=(4x)^2-2\cdot4x\cdot9y+(9y)^2=(4x-9y)^2\n\n=(4x-9y)(4x-9y)\n\n\n\n(a-b)^2=a^2-2ab+b^2
use the perfect square trinomial method. since 16x² is a perfect square and so is 81y² your answer would be (4x-9y)² when u multiply that out it will give u 16x²-72xy+81y²

For an angle Θ with the point (5, -12) on its terminating side, what is the value of cosine

Answers

We have to find the value of cosine for an angle with point ( 5, - 12 ) on its terminating side. First we have to find the hypotenuse ( Adjacent = 5, Opposite = 12 ) : c^2 = 5^2 + 12^2 = 25 + 144 = 169; c = sqrt(169 ), c = 13. Cosine for an angle = Adjacent / Hypotenuse = 5 / 13 = 0.385. Answer: The value of cosine is 5/13 or 0.385.

Answer:

5/13

Step-by-step explanation:

Y = 3x + 10
y = -7x - 20

Answers

Answer:

x = -3

Step-by-step explanation:

3x + 10 = -7x -20

3x + 7x = -20 -10

10x = -30 /: (10)

x = -3

Hal is asked to write an exponential function to represent the value of a $10,000 investment decreasing at 2% annually. What multiplicative rate of change should Hal use in his function?

Answers

For exponential growth or decrease there is a general formula given:

P(t) = P(0) [exp(rt)]where,P(t) is the investment remaining at time t,P(0) is the investment at time 0, initial investment andr is the exponential rate of decrease.

10,000 * 0.02 = 200
10,000 - 200 = 9,800 value after year 1

P(1) = P(0) [exp (rt)]
9,800 = 10,000 (0.98)^1

r = loge (0.98)  = ln (0.98) = -0.0202

P(t) = P(0)[exp(-0.0202t)]

Answer: 0.98

Step-by-step explanation:

The person above me is wrong, the correct answer on ED. is 0.98
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The diagonals of a parallelogram QRST, TR And QS, Intersect at point U, if RS = 10 , ST=12,And RU=9.5 , Find The Perimeter Of The parallelogram QRST.A. 39 B. 44 C. 88 D.100