2 years ago

Which equation represents the vertical line passing through (1,-9)?

Mathematics

1 answer:

MArishka [77]2 years ago

6 0

-9 cause you’ll be looking at the vertical line

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oksano4ka [1.4K]

A c and d are the answers

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2 years ago

Adam currently runs about 20 miles per week,aND he wants to increase his weekly mileage by 30% How many miles will Adam run per

mel-nik [20]

20miles increased by 30%=new mileage added

20x.3= 6

6 miles more than his previous distance so...

6+20= 26

NOTE you can also use 1.3 instead of .3 as the percent to get the answer with out addition.

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3 years ago

Which of the following is NOT true about the hypotenuse of a triangle?

fiasKO [112]

Depending on the length of the two sides of the triangle the length could be smaller than 1.

The answer that is not true is :

B. It is always greater than 1

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3 years ago

Which angle has a sine of -1/2 and a cosine of -√3/2

Sergeeva-Olga [200]

$\sin x=-\dfrac{1}{2} < 0\\\\\cos x=-\dfrac{\sqrt3}{2} < 0\\\\therefore\ x\in(180^o;\ 270^o)$

$\text{We know:}\ \tan x=\dfrac{\sin x}{\cos x}\\\\\text{therefore:}\ \tan x=\dfrac{-\frac{1}{2}}{-\frac{\sqrt3}{2}}=\dfrac{1}{2}\cdot\dfrac{2}{\sqrt3}=\dfrac{1}{\sqrt3}\cdot\dfrac{\sqrt3}{\sqrt3}=\dfrac{\sqrt3}{3}$

$\tan x=\dfrac{\sqrt3}{3}\Rightarrow x=30^o+180^o\cdot k;\ k\in\mathbb{Z}$

$x\in(180^o;\ 270^o)\ therefore\ \boxed{x=30^o+180^o=210^o}$

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3 years ago

What is the first 5 multiples of the following numbers 10,15,20,24

timofeeve [1]

10 20 30 40 50
15 30 45 55 70
20 40 60 80 100
24 48 72 96 120

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2 years ago