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azamat
3 years ago
14

Please help me solve this :((

Mathematics
1 answer:
Kipish [7]3 years ago
5 0

Answer:

Step-by-step explanation:

hello :

cosθ = 72.90/125.00

cosθ = 0.58

θ= cos-1(0.58)

θ = 54.55°

You might be interested in
Which term of a AP 5 , 13 , 21 ,... is 181?
Sauron [17]
Here,a(n) =  a + (n-1)d
Here, a = 5, d = 12-5 = 8, a(n) = 181
Substitute this values in to the expression,

181 = 5 + (n-1)8
181-5 = 8n-8
176+8 = 8n
n = 184/8
n = 23

So, it is 23th term of that Arithmetic Progression.

Hope this helps!

7 0
3 years ago
When 7 is subtracted from five times a number, the result is greater than twice the sum of the number and 4. Find all the number
hichkok12 [17]

Given :

When 7 is subtracted from five times a number, the result is greater than twice the sum of the number and 4.

To Find :

All the numbers that satisfy the inequality.

Solution :

Let , the number is x .

Mathematical expression for first term is :

5x - 7

Mathematical expression for second term is :

2(x + 4)

Now , comparing both the expression by given constrain.

5x - 7 > 2(x + 4)\\\\5x-7>2x+8\\\\3x>15\\\\x>5

So, all the numbers that satisfy the inequality are greater than 5.

Hence , this is the required solution.

3 0
4 years ago
What expression is equivalent to -5(3x- 4)
Alex17521 [72]

Answer:

= -15x +20

Step-by-step explanation:

-5(3x- 4)

= -5×3x- 4×-5

= -15x +20

6 0
4 years ago
Solve the system of equations below:<br><br> y = 3x - 5<br><br> y = -2x + 10
Westkost [7]

Answer: x=3

y=4

Step-by-step explanation:

since both equations equal y then  you can  just make them equal

so 3x-5=-2x+10

3x=-2x+15

5x=15

x=3

y=3(3)-5

y=9-5

y=4

3 0
3 years ago
The graph of f(x) = (0.5) is replaced by the graph of g(x) = (0.5)* - k. If g(x) is obtained by shifting f(x) down by 3 units, t
Ghella [55]

Answer:

k = 3

Step-by-step explanation:

Given

f(x) = 0.5x

g(x) = 0.5x - k

Required

Find\ k

Initial expression of f(x) is f(x) = 0.5x

From the question; we understand that f(x) was shifted down by 3 units;

This implies that

New\ f(x) = 0.5x - 3

Also from the question; we understand that this new f(x) is equivalent to g(x);

In other words;

New\ f(x) = g(x)

SubstituteNew\ f(x) = 0.5x - 3 and g(x) = 0.5x - k

This gives

0.5x - 3 = 0.5x - k

<em />

Subtract 0.5x to both sides

0.5x - 3 - 0.5x = 0.5x - k - 0.5x

Rearrange

0.5x - 0.5x - 3 = 0.5x  - 0.5x- k

-3 = -k

Multiply both sides by -1

-3 * -1 = -k *-1

3 = k

k = 3

5 0
3 years ago
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