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Nonamiya [84]
3 years ago
8

Sin 20 = cos a Find aPlease be sure to show your work.​

Mathematics
1 answer:
mezya [45]3 years ago
8 0

Answer:

Step-by-step explanation:

cos a=sin20=sin (90-70)=cos 70

a=70°

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Need the answer please answer
kondor19780726 [428]

Answer:

38 sq cm.

Step-by-step explanation:

Find the triangles:

1st: 10

2nd: 1/2(8-6)*4=4

Rectangle area: 24, add together 10+4+24=38 sq cm.

4 0
3 years ago
Alyssa's company makes a profit of $175,000.
miskamm [114]
So the initial profit is 175000
If it falls by 25000 per month, this is 25000m
175000-25000m
(Insert the 5)
175000-25000(5)= 50,000

So the net profit after 5 months is $50,000

Hope this helps!
3 0
3 years ago
The number of cows in a farm was 60% of the number of the goats. After 80 goats were taken out of the farm, the number of goats
Eva8 [605]
Before:
The number of goats =60%
The number of cows = 100%

Using ratio
Cows : Goats
60 : 100 reduced to simplest term

C:G
3:5

After
The number of cows = 100%
The number of goats = 60%

Using ratio

C:G
100:60 reduced to simplest term
C:G
5:3

Number of cows remained constant. Therefore find the common multiple.

Before
C:G
15:25

After
C:G
15:9

Find the difference in the units of goats

(a)25 - 19= 16
16 units =80
1 unit = 5
15 units (cows) = 5 x 15 = 75
There were 75 cows.

(B)
Number of goats at first
25 units = 5 x 25 = 125
Therefore percentage= 80/125 x 100
= 64%
5 0
3 years ago
(03.01) Is the following relation a function? y equals the sine of 3 x
nikdorinn [45]
A relation is a function if it passes the vertical line test.  That graph in a coordinate plane is just a sin wave that is spread out.  If you run a perfectly vertical line through the graph at every place on the graph, the line you draw will only go through the graph at one place every time.  That makes it a function.  It's not a one-to-one function cuz it fails the horizontal line test, but it is a function!
6 0
4 years ago
Read 2 more answers
Marco built a circular table that has a radius of 3 centimeters. what is the diameter of the table ?
Nataly [62]

Answer:

Diameter = 2 x Radius / The answer should be 6.

Step-by-step explanation:

D = 2 x 3

= 6

5 0
2 years ago
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