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3 years ago

Which trigonometric functions are equivalent to cos ∅. There must be only 2 selections no more no less !

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

5 0

Answer:

cos(theta+2π) and -cos(-theta)

Step-by-step explanation:

theta plus 2π have the same cosine output as theta on a graph.

the negative cosine of negative theta is equal to the positive cosine of positive theta.

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The picture frame has a perimeter of 100 inches. The width is 22 inches. Calculate the missing length. Use that answer to find t

ivanzaharov [21]

Answer:

39 inches.

858 inches²

Step-by-step explanation:

Length:- (if length = x)

2 ( 11 + x ) = 100

22 + 2x = 100

2x = 100 - 22

2x = 78

x = 78 ÷ 2

x = 39 inches

Area:-

Area = l × b

= 39 × 22

= 858 inches²

8 0

2 years ago

What number is missing from the table of equivalent ratios

denpristay [2]

8 is missing for the table

8 0

2 years ago

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Since 1995 the cost of a bag of groceries has increased about 2.5% each year. The equation C = 25(1.025)x will give the value of

Marianna [84]

Answer: 28 years

Step-by-step explanation:

Given

The equation showing the value of the bag after x years is $C=25(1.025)^x$

If the price of the bag increased by 2.5%, from the equation, we can deduce that

Initial cost of the bag is 25

Double of the initial value is 50

Insert it in the equation

$\Rightarrow 50=25(1.025)^x\\\Rightarrow 2=1.025^x\\\text{Taking natural log}\\\Rightarrow \ln 2=x\ln (1.025)\\\\\Rightarrow x=\dfrac{\ln 2}{\ln 1.025}\\\\\Rightarrow x=28.07\approx 28$

It will take 28 years

5 0

3 years ago

Suppose to travel 162 miles in 3 hours .use the formula d=st to find the average speed

Umnica [9.8K]

Distance = Speed x time = 162 x 3 = 486 miles/hour

Answer: 486 miles/hour

6 0

3 years ago

Read 2 more answers

Can you help me i will give you a branlist

Amiraneli [1.4K]

Answer:

$500?

Step-by-step explanation:

7 0

3 years ago