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Gekata [30.6K]
3 years ago
12

Error analysis help me out

Mathematics
1 answer:
IrinaK [193]3 years ago
5 0

Answer:

1 - sin² θ = 1 - ( 1 - cos² θ) = cos² θ

tan x csc x = (sin x / cos x) * 1 / sin x = cos x

Step-by-step explanation:

1 - sin² θ = 1 - ( 1 - cos² θ) = cos² θ

tan x csc x = (sin x / cos x) * 1 / sin x = cos x

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3. At the start of summer, Ben has $250 . He takes a summer
earnstyle [38]

Answer:

Week 4

Step-by-step explanation:

Ben has $250 in the beginning.  He saves $150 per week.

y = 150x + 250

Tim has $1,650 in the beginning.  He spends $200 per week.

y = 1650 - 200x

We are trying to find which x-value produces the same y-value for both equations.  You can do this by setting both equations equal to each other.

150x + 250 = 1650 - 200x

(150x + 250) + 200x = (1650 - 200x) + 200x

350x + 250 = 1650

(350x + 250) - 250 = (1650) - 250

350x = 1400

(350x)/350 = (1400)/350

x = 4

By week 4, they will have the same amount of money.

3 0
3 years ago
Which expression converts 4pi radians to degrees?
grin007 [14]
4pi/2pi = x/360
use a proportion
2 radians equals 360 degrees
x = 720 degrees
7 0
3 years ago
Read 2 more answers
If f is a signum function then f(100) =​
Genrish500 [490]

Answer:

787

Step-by-step explanation:

i took the test

4 0
3 years ago
Please help extra points and Mark bring list
Nady [450]

answer: dividing the number by 100

100 ×100= 100000

100000÷100

100

5 0
3 years ago
Please I need help with this
SVEN [57.7K]
Divide fractions by multiplying the first number by the reciprocal of the second.

2ay*15y= 30ay^2

5y^3*4a=20ay^3

(30ay^2)/(20ay^3)=3/(2y)

Final answer: 3/(2y)
3 0
3 years ago
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