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3 years ago

If the sin 30 degrees is 1/2 then the cos =.

Mathematics

2 answers:

goldenfox [79]3 years ago

7 0

Try A) 60 degrees; 1/2. Your answer was incorrect because cos(60 degrees) is 1/2, cos(30 degrees) is square root 3 /2 not 1 or square root 2 /2

Likurg_2 [28]3 years ago

7 0

the answer is 4 becasue you just see how many pairs can each marble get

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8× what =2

sergejj [24]

Answer:

8*1/4= 2

A) 0.071

B) 0.48

5 0

3 years ago

A rocket is launched from atop a 75 foot cliff with an initial vertical velocity of 107 feet per second. The height of the rocke

satela [25.4K]

The distance of the rocket hitting the ground is 715.56 feet in 6.68 seconds

Explanation:

Given:

Height, h = 75 foot

Initial velocity, u = 107 foot/sec

Equation:

h = -16t² + 107t + 75

Substituting the equation:

75 = -16t² + 107t + 75

0 = -16t² + 107t

16t² = 107t

t = 6.6875s

We know:

Distance = speed X time

d = 107 f/s X 6.6875s

d = 715.56 foot

Therefore, the distance of the rocket hitting the ground is 715.56 feet in 6.68 seconds

3 0

3 years ago

Suppose f(x) = 5x - 4. Describe how the graph of g compares with the graph of f.

posledela

The graph of g(x) and f(x) are related by the given equation g(x) = f(x) + 12,

therefore, the ordered pair of the graph of g(x) is (f(x) + 12, x).

The choice that correctly describes how the graph of g(x) compares with f(x)

is the option; H. The graph of g(x) is translated unit(s) up compared to graph

of f(x).

Reasons:

The given function is f(x) = 5·x - 4

The function g(x) = f(x) + 12

Required:

To select the correct choice from the given options

Solution:

The difference between f(x) and the required function, g(x), is the addition

of a constant positive value of 12 to the function f(x).

Therefore, each f(x) output value is further increased by 12 to obtain the

graph of g(x), which gives;

The graph of g(x) is translated 12 units up compared to the graph of f(x),

which corresponds with the option H.

Learn more here:

brainly.com/question/15938361

5 0

3 years ago

Lucy invested $19,000 in an account paying an interest rate of 3% compounded annually. Assuming no deposits or withdrawals are m

Paraphin [41]

23560
3% of 19k is 570
570*8=4560
4560+19000=23560
(I hope this is right)

5 0

3 years ago

See image for question. Please show workings and diagrams.

ale4655 [162]

Answer:

a) 7 km
b) 298°

Step-by-step explanation:

See attached diagram (not to scale).

All given details reflected.

a) Find the measure of XZ using the law of cosines:

y = √(5² + 3² - 2*5*3*cos 135°) = 7 km (rounded)

b) Now using the law of sines find the measure of angle X:

7 / sin 135° = 5 / sin X
sin X = 5 sin 135° / 7
m∠X = arcsin (5 sin 135° / 7 ) = 28° (rounded)

The bearing of Z from X is:

270° + 28° = 298°

3 0

4 years ago

If the sin 30 degrees is 1/2 then the cos ____=____.

If the sin 30 degrees is 1/2 then the cos =.