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cluponka [151]
3 years ago
6

TanA= 2xy/(x^2+y^2),find sinA​

Mathematics
1 answer:
valina [46]3 years ago
7 0

Step-by-step explanation:

TanA = SinA/CosA

                                 tanA = 2xy / (x² + y²),

                                 Sin A = CosA * 2xy / (x² + y²)

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If the diver in item 2 leaves the board with an initial upward speed of 2.00 m/s, find the diver's speed when striking the water
Taya2010 [7]

Answer:

v_f=9.0774m/s

Step-by-step explanation:

Let's assume

initial velocity =vi

final velocity=vf

initial height =hi

final height =hf

acceleration due to gravity =g

we can use formula

\frac{1}{2}v_i^2+gh_i= \frac{1}{2}v_f^2+gh_f

we are given

v_i=2m/s

h_i=2\times 2=4

h_f=0

g=9.8m/s^2

now, we can plug values

\frac{1}{2}(2)^2+(9.8)(4)= \frac{1}{2}v_f^2+(9.8)(0)

now, we can solve for vf

\frac{1}{2}(2)^2+(9.8)(4)= \frac{1}{2}v_f^2

we get

v_f=9.0774m/s


4 0
3 years ago
1.4 + 3.2 x 2.95 =?<br> First one to help is gonna be marked brainliest.
777dan777 [17]

Answer:

10.84

Step-by-step explanation:

First we multiply

1.4+(3.2×2.95)

1.4+9.44=

=10.84

4 0
3 years ago
Read 2 more answers
In how many map squares did we spot more than 29 plant species
Katena32 [7]

Answer:

10 map squares.

Step-by-step explanation:

We have been given a histogram, which represents the plant species spotted in the animal reserve.

The x-axis represents the number of plant species and y axis represents the number of map squares.

We can see that 0 to 9 species are spotted in 1 map square.

10 to 19 and 20 to 29 plant species are spotted in 2 map squares.

To find the number of map squares that spot more than 29 plant species, we will count number of map squares that spot 30 to 49 plant species as 30 to 49 numbers are more than 29.

We can see from our histogram that 4 map squares spot 30 to 39 plant species and 6 map squares spot 40 to 49 plant species.

\text{Total number of map squares that spot more than 29 plant species}=4+6

\text{Total number of map squares that spot more than 29 plant species}=10

Therefore, 10 map squares spot more than 29 plant species.

5 0
4 years ago
Read 2 more answers
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galina1969 [7]
I think it is C. 60.
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6 0
3 years ago
Forest habitat is cleared to build a new shopping complex. what does this scenario represent? a loss of biodiversity due to a cl
Dominik [7]

A loss of biodiversity due to human activity.

8 0
2 years ago
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