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Alexandra [31]
3 years ago
6

9), please ignore my working already! And include an explanation, thank you!

Mathematics
1 answer:
Margarita [4]3 years ago
7 0
The graph shows that the function is equal to y = 2cos(3x) + 1 because in the graph I notice that the table is (0, 3), (60°, -1), and (120°, 3). It shows that a is equal to 2, b is equal to 3, and c is equal to -1, making the function equal to y = 2cos(3x) + 1

a = 2
b = 3
c = 1

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Meghan went out to lunch. Her food costs $11.62. A 6% sales tax was
adelina 88 [10]

Answer:

$12.31

Step-by-step explanation:

11.62 divided by 2 =0.69

$11.62+$0.69=12.31

7 0
3 years ago
Can anybody help me on this?
jenyasd209 [6]

Answer:

length = 62.41 inches

Step-by-step explanation:

Using pythagoras theorem -

Let

a = hypotenuse

b = height

c = length

a^2 = b^2 +c^2

75^2 = 41.6^2 + c^2

Therefore,

75^2 - 41.6^2 = c^2

5625 - 1730.56 = c^2

389.44 = c^2

square root (389.44) = c

62.40544848 = c

8 0
3 years ago
Read 2 more answers
these cards are put int a bag. One card is chosen at random. (1,2,3,4,5,6,7,8,9,10) a.) what is the probability of choosing the
Rama09 [41]

Answer:

There are 10 cards in total.

The probability of choosing card with the number 4 is 1/10.

The probability of choosing card with the number 1 is 2/10 = 1/5 (since there are 2 cards with the digit 1 - 1, 10)

5 0
4 years ago
Read 2 more answers
PLS help will gift 20 extra point for the first to answer it
Sonja [21]

Answer:

No, his inference is not valid

Step-by-step explanation:

the data shown represents the statistic of 100 people's preferred ways to view movies in total

out of that 30/100 people prefer to watch in theatre.

trent inferences that out of 400 people 300 would prefer to watch in theatre another way to write this is 300/400

if we multiply the data we're given so that the denominators match Trent's inference. The data tells us that 120/400 would prefer to watch in theatre, so his inference is not valid.

4 0
3 years ago
The half-life of a certain radioactive element is 35 hours. If there are 904 grams of this element, how much will be left after
Artist 52 [7]

Answer:

226 grams

Step-by-step explanation:

This will be an exponential function. The formula for exponential functions and half life is A=Ao * (1/2)^(t/h)

A stands for final amount, Ao for initial amount, 1/2 is the decaying factor (after a half life, one mg becomes 1/2 mg), t stands for time, and h is the half life.

To solve your problem, the equation would be A=904 * (1/2)^(70/35)

The parentheses are necessary for your calculator or else you will get the wrong answer.

7 0
4 years ago
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