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cricket20 [7]
3 years ago
11

If cos45⁰=0.707 find cos(-45⁰)​

Mathematics
1 answer:
maksim [4K]3 years ago
6 0

Answer:

0.707

Step-by-step explanation:

cos in the 4th quadrant is positive as well as in 1st quadrant.

cos(-45°) is in the 4th quadrant.

So cos40° must equal cos(-45°) which is 0.707.

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Which point is on the graph of f(x) = 3 x 5^x?
Harlamova29_29 [7]

Answer:

C

Step-by-step explanation:

To determine which point lies on the graph, substitute the x-coordinate into f(x) and if the value is equal to the y-coordinate then the point is on the graph

A (15, 1)

f(15) = 3 × 5^{15} ≠ 1 ← not on graph

B (0, 15)

f(0) = 3 × 5^{0} = 3 × 1 = 3 ≠ 15 ← not on graph

C (1, 15)

f(1) = 3 × 5^{1} = 3 × 5 = 15 ← lies on graph

D (0, 0)

f(0) = 3 × 5^{0} = 3 × 1 = 3 ≠ 0 ← not on graph



5 0
4 years ago
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Why do can a even number be subtracted by an even number?
astraxan [27]

The question doesn't grammatically make sense...

I think you should edit your question and make it clear to understand.

6 0
3 years ago
Janet decides to sow grass in a rectangular plot of her garden that has a length of 30 ft and a height of 25 ft. It costs her $9
kobusy [5.1K]
The answer is A. The answer is A.
5 0
4 years ago
What is the surface area of the cylinder with height 5 ft and radius 3 ft? Round your answer to the nearest thousandth
BabaBlast [244]

Answer:

150.8ft²

Step-by-step explanation:

A=2πrh+2πr2=2·π·3·5+2·π·32≈150.79645ft²

8 0
3 years ago
A duck was given $9, a spider was given $36, a bee was given $27. Based off of this information, how much money would be given t
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Answer:

$18.

Formula : (No. of legs *5) - (no.of legs)/2

A duck has 2 feet. It gets 2*5 - (2/2) = 10 - 1 = $9

A spider has 8. It gets 8*5 - (8/2) = 40 -4 = $36

A bee has 6 feet. It gets 6*5 -(6/2) = 30 -3 = $27.

Thus, a cat with 4 legs would get 4*5 - (4/2) = 20 -2 =$18

Please mark me brainliest!

3 0
3 years ago
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