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Vilka [71]
3 years ago
5

Cos 0° + cos 1° + cos2° +cos3° +...+cos 179° + cos 180°.

Mathematics
1 answer:
sertanlavr [38]3 years ago
4 0

Answer:

0

Step-by-step explanation:

identity:

cos(180-x) = -cos(x)

cos(0)= -cos(180)

cos(0) + cos(180) = 0

cos(1)= -cos(179)

cos(1)+cos(179) = 0

...

all sum to zero

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How do I find the answer to 10=7-m
andrey2020 [161]

Answer:

M=-3

Step-by-step explanation:

10=7-m

Subtract 7 from both sides

3=-m

Divide by negative

-3=m

3 0
3 years ago
A store makes a profit of $15 on a wallet, after a mark up of 60%, what is the selling priceof the wallet?
Ivenika [448]

Answer:

Markup: $9 ; Selling Price: $24

Step-by-step explanation:

The store makes a profit of $15, to find the mark up of 60%, multiply 15 x 60%.

15 x 0.6 = 9

Add the markup price to the original price.

9 + 15 = $24

The selling price is $24

4 0
3 years ago
Write the equation of the parabola in vertex form.<br><br> Vertex (2,3), point (1,-4)
Naddika [18.5K]

Answer:what grade math is this

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Algebra 1 polynomials hellllp​
defon
A. 40x^2 + 240x + 200
Shape: Rectangle
Formula: A = LW
A = (10x + 10)(4x + 20)
= (10x)(4x) + (10x)(20) + (10)(4x) + (10)(20)
= 40x^2 + 200x + 40x + 200
= 40x^2 + 240x + 200
————————————————————-
2. 57,600 ft^2
Width:
4x + 20 = 160
4x = 140
x = 35
Plug-In:
10x + 10
10(35) + 10
350 + 10
360 = Length
————————————-
A = LW
A = 360 • 160
A = 57,600 ft^2
8 0
2 years ago
Please Help!
MAVERICK [17]
For a translation of 4 units right, the graph will become -3(x-4). the 4 is negative to indicate that the translation is right.
For a vertical stretch of 4, the graph will become 4x-3(x-4)=-12(x-4). 

With this information, g(x)=-12(x-4)
5 0
3 years ago
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