MATHEMATICS HIGH SCHOOL

What would be the slope, zero, and the y-int of y = 1/2x -1

Answers

Answer 1
Answer:

Answer:

slope=1/2, y-int=-1

Step-by-step explanation:

y=mx+b

m=1/2

b=-1

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Find the exact value of tan 30 degrees w/o calculator

Answers

Here is a mantra that I learned in Geometry class in high school.  We were
all very excited, as angles had been invented only a few years earlier:

In a 30-60 right triangle ...
the side opposite the 30 is half the hypotenuse
the side opposite the 60 is half the hypotenuse times the square root of three.

So the tangent of the 30 would be (opposite) / (adjacent) = (1/2h) / (1/2h√3) .

That's (1)/(√3) or (√3)/(3) .
Look\ at\ the\ picture.\n\ntan30^o=((a)/(2))/((a\sqrt3)/(2))=(a)/(2):(a\sqrt3)/(2)=(a)/(2)\cdot(2)/(a\sqrt3)=(1)/(\sqrt3)\cdot(\sqrt3)/(\sqrt3)=(\sqrt3)/(3)

A cell-phone plan advertises 800 free minutes. Of those, 200 are daytime minutes. What fractions of the free minutes are on nights and weekend?A. Less than 1/4
B. Exactly 1/4
C. Exactly 3/4
D. More than 3/4

Answers

Exactly 3/4 because in the end you'll only have the 600 minutes remaining

Are simplified ratios written in units?

Answers

Answer:

No

Step-by-step explanation:

Simplified ratios are not written in units.

There are 229 people attending a convention. Each table seats 8 people. What is the least number of tables needed to seat everyone?__________ tables

Answers

29 tables will be needed.

Completely factor this polynomial:
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Answers

16x^2-25y^2=(4x)^2-(5y)^2=(4x-5y)(4x+5y)

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​

Answers

Answer:

D

Step-by-step explanation:
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