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astra-53 [7]
3 years ago
12

Help. Answer this please!

Mathematics
1 answer:
Wewaii [24]3 years ago
7 0

Answer:

b

Step-by-step explanation:

hard to explain right here sorry man

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Suppose the population of a town is 3,400 in 2000. The population decreases at a rate of 2% every 20 years. What will be the pro
Temka [501]
The formula would be
A=p (1-r)^t

P 3400
R 0.02

Since it decreases every 20 years
From 2000 to 2040 it decreases 2 times so
T 2

A=3,400×(1−0.02)^(2)
A=3,265

It's c
7 0
3 years ago
(Sinθ-cosθ)(sinθ+cosθ)=1-2cos^2θ
ohaa [14]

Answer:

See below

Step-by-step explanation:

( \sin \theta -  \cos \theta)( \sin \theta  +  \cos \theta) = 1 - 2 { \cos}^{2}  \theta \\  \\ LHS   = ( \sin \theta -  \cos \theta)( \sin \theta  +  \cos \theta)  \\  \\  =  \sin^{2}  \theta -  \cos^{2}  \theta \\  \\  =1 -  \cos^{2}  \theta -  \cos^{2}  \theta \\( \because  \sin^{2}  \theta =1 -  \cos^{2}  \theta)  \\  \\  = 1 - 2 { \cos}^{2}  \theta   \\ = RHS

Thus proved

8 0
3 years ago
30 points!!! Find the area of each. Round to the nearest tenth. Do not include units in
Ronch [10]

Answer:

Area of triangle = 8.9

Area of parallelogram = 53.4 yd² (option A)

Step-by-step explanation:

✔️Area of the triangle = ½*base*height

base = 3 m

height = 5.9 m

Area of triangle = ½*3*5.9

Area of triangle = 8.85 ≈ 8.9 (nearest tenth)

✔️Area of parallelogram = base*height

base = 8.9 yd

height = 6 yd

Area of parallelogram = 8.9*6 = 53.4 yd²

4 0
3 years ago
Find a, b, and <br><br>plz help me and don't spam me with links ​
Natali5045456 [20]
A° = 38, b°= 90, c° = 38


the square on the angle opposite to b shows that it is a right angle which means it’s 90°
5 0
3 years ago
...im failing please
Taya2010 [7]

Answer:

top row on 9 page; 9) 53/5 10) 26/4 11) 37/4

bottom row on 9 page; 9) 8 and 1/7 10) 6 and 3/4 11) 1 and 1/3

top row on 3 page; 3) 2 and 2/7 4) 5 and 3/4 5) 8 and 1/10

bottom row on 3 page; 3) 4/3 4) 3/2 5) 12/5

top row on 12 page; 12) 21/10 13) 62/6 14) 57/6

bottom row on 12 page; 12) 1 and 9/10 13) 10 and 1/2 14) 3 and 3/8

Step-by-step explanation:

You never specified if these had to be simplified or turned into a fraction, so I just simplified them. That's about it.

I hope this helps :)

7 0
3 years ago
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