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arsen [322]
3 years ago
8

Sin^2(alpha) + cos^2(alpha)=? Fast plz sir is asking me rn lol

Mathematics
1 answer:
Crazy boy [7]3 years ago
4 0

Answer:

the answer is 1

hope it helps

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Write a numerical expression to match the written expression below: Twenty-three less than the sum of forty-nine and thirty-seve
kotegsom [21]

Answer:

i don't know i think 590

7 0
3 years ago
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Wright a variable expression for the word phrase, "the product of a number z and 7" A: 7 - z
drek231 [11]
Product means to multiply so, C
3 0
3 years ago
Please help me ASAP it’s times THANK U
goblinko [34]

Answer:

Only choices C and D are solutions

Step-by-step explanation:

6x + 3y = -15

y = -2x - 5

6x + 3y = -15

6x + 3(-2x - 5) = -15

6x - 6x - 15 = -15

0 = 0

Since 0 = 0 is a true statement, both equations of this system are the same equation and represent a single line on the coordinate plane.

We need to check each choice in just one equation.

Let's use the second equation.

y = -2x - 5

A.

(2, 7)

7 = -2(2) - 5

7 = -4 - 5

7 = -9   False

Not a solution

B.

(5, 0)

0 = -2(5) - 5

0 = -10 - 5

0 = -15     False

Not a solution

C.

(-3, 1)

1 = -2(-3) - 5

1 = 6 - 5

1 = 1   True

Solution

D.

-13 = -2(4) - 5

-13 = -8 - 5

-13 = -13    True

Solution

Answer: Only choices C and D are solutions

7 0
3 years ago
A student claims that the rectangular point below can be represented by the
Sladkaya [172]

Since we don't have a figure we'll assume one of them is right and we're just being asked to check if they're the same number.  I like writing polar coordinates with a P in front to remind me.

It's surely false if that's really a 3π/7; I'll guess that's a typo that's really 3π/4.

P(6√2, 7π/4) = ( 6√2 cos 7π/4, 6√2 sin 7π/4 )

P(-6√2, 3π/4) = ( -6√2 cos 3π/4, -6√2 sin 3π/4 )

That's true since when we add pi to an angle it negates both the sine and the cosine,

cos(7π/4) = cos(π + 3π/4) = -cos(3π/4)

sin(7π/4) = sin(π + 3π/4) = -sin(3π/4)

Answer: TRUE

3 0
3 years ago
a rectangle has a length of 10 ft. and a width of 6 ft. what's the perimeter? a. 60 ft. b. 16 ft. c. 32 ft. d. 26 ft.
Veronika [31]
32 because you add all the out side lengths
8 0
3 years ago
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