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Advocard [28]
3 years ago
9

Csc (theta) , if cos (theta) = -2/3 ; 180 < theta < 270

Mathematics
2 answers:
Zinaida [17]3 years ago
8 0
Opposite side = sqrt  (3^2 - 2^2 ) =  sqrt5
sin theta = -sqrt 5 / 3   as the sine is negative in the 3rd quadrant 

csc theta = - 3 / sqrt5
Mariana [72]3 years ago
4 0

Answer: D on edge

Step-by-step explanation:

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Printer allows for optional settings with a panel of six​on-off switches in a row. how many different settings can she select if
Leokris [45]

There are 2×2×2×2×2×2 = 2⁶ = 64 possible settings.

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Each switch can be in 2 positions, and for each of those, the other switches can have all possible settings. 1 switch has 2 settings. 2 switches will have 2×2 settings. 3 switches will have 2×2×2 settings.

6 0
3 years ago
What is the slope of the line that passes thought the points (-7,-7)and(-7,1) write your answer in simplest form.
Alexxandr [17]

Answer:

The slope is undefined

Step-by-step explanation:

Find slope by using the slope formula, m=\frac{y2-y1}{x2-x1}

Use the given points and insert the x's and y's to solve for slope

(-7, -7) (-7, 1)

m=\frac{y2-y1}{x2-x1}

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m= \frac{8}{0}

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The slope for the given point is undefined because it is impossible to divide a number by 0

8 0
3 years ago
Triangle ABC Is similar to triangle DEF solve for r
Ymorist [56]

since they're similair then similair sides will be proportional

CB is similair to EF

\frac{6}{8}86 = \frac{3}{4}43

same thing if you try with the hypotenuse AB similair to DE

\frac{13.5}{18}1813.5 = \frac{3}{4}43

So, if you multiply  r (DF) by 3/4  you will get the similair side AC

rx 3/4=12

r= 12÷ 3/4

<h3>r=16.</h3>

<h2>i HOPE IT'S HELP </h2><h3 />
4 0
2 years ago
Greg earned $45.76 in 6.4 hours. How much did he earn per hour?
Alisiya [41]

Answer:

The answer is $7.15 (A)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
So I really don't understand what​ I'm doing....I would be glad if you helped
SSSSS [86.1K]
We are supposed to assume FC and AD is straight line
let's find all the angles


you already see the right angle is 90 degrees, you got that right
striaght line is 180 degrees

90+46+EF=180
136+EF=180
minus 136 both sides
EF=44
now we got another straight line
you did get that A F=46 because it is oposite

notice: AB=BC because same angle designition
so now we use
180+46+2AB=360
2AB=134
divide 2
AB=67=BC
AC=134 degrees
CAE=134+46+44=224
ABD=180 since straight line



a. 90
b. 224
c.134
d. 180
8 0
3 years ago
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