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Pepsi [2]
3 years ago
7

Please answer this question !! Will give brainliest to the best answer and 30 points !!

Mathematics
1 answer:
tamaranim1 [39]3 years ago
8 0

5

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Why is the - sin of x the same as the sin of -x?
Neko [114]

Answer:

Sine is an odd function and presents positive values in the 1st and 2nd quadrants and negative values in the 3rd and 4th quadrants.

Step-by-step explanation:

-sin(x) = sin(-x)

This property is valid because the sine trigonometric function presents positive values in the first two quadrants and negative values in the third and fourth quadrants. The sine function is an odd function with symmetry with respect to the origin, which means that sin(x) and sin(-x) will always present opposite signs.

3 0
3 years ago
PLEASE HELP ME. ^^photos^^ I need help with this math please!!!!!
EleoNora [17]

Answer:

17. 11x - 11y  or  11x + (-11y)

18. -7.52 - 2.8  or  -7.52 + (-2.8)

19. 41x - 21y - 6

20. -3y -8xy

Step-by-step explanation:

17. Use the distributive property.

18. Use the distributive property to multiply each number inside the parentheses by 0.4

19. Multiply each number inside the parenthese by 7.

20.Multiply each term in parenthese by y.

5 0
3 years ago
A total of $2100 for a house painting job is to be divided between two painters in the ratio of 3 to 4. How much does each paint
kakasveta [241]
\bf 2100\qquad 3:4\qquad \cfrac{3}{4}\implies \cfrac{3\cdot \frac{2100}{3+4}}{4\cdot \frac{2100}{3+4}}\implies \cfrac{3\cdot 300}{4\cdot 300}\implies \cfrac{900}{1200}
4 0
3 years ago
What's the product of 9.55x83 and how to solve it
dedylja [7]
The product should be 792.65
3 0
3 years ago
Read 2 more answers
Nine less than five times a number is equal to -30.
notka56 [123]

Answer: 5x-30-9

-159

Step-by-step explanation:

-159 is the answer

6 0
2 years ago
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