2 years ago

Cos130° = _____ -cos50° cos50° cos(-50°)

Mathematics

2 answers:

klemol [59]2 years ago

6 0

Answer:

cos(-50°)

Step-by-step explanation:

Alinara [238K]2 years ago

6 0

Answer:

-cos50

Step-by-step explanation:

cos 130

cos pi-50

-cos 50

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Y∝√x If y=60 when x=36 find,y when x=16

avanturin [10]

Answer:

y = 10√16) = 40

Step-by-step explanation:

This says, "y is proportional to the square root of x." We are told that y = 60 when x = 36. Find the formula for this function. Then, determine what value y will take on when x = 16.

y = k√x becomes 60 = k√36, or 60 = 6k. Then k must be 10, and the formula is y = 10√x.

If x = 16, y = 10√16) = 40

7 0

2 years ago

I need help<br> with this

Advocard [28]

Yes, you can see by subtracting 32 from the bottom sides and seeing that the correspondent for 20 degrees celcius is double that of the correspondent for 10 degrees celcius

8 0

3 years ago

Given h(x) = 4x2 - 5x + 4 find h(-5).

MrRissso [65]

9514 1404 393

Answer:

h(-5) = 129

Step-by-step explanation:

Put -5 where x is and do the arithmetic.

h(-5) = 4(-5)² -5(-5) +4

h(-5) = 4(25) +25 +4 = 129