All categories

2 years ago

If sin(x) = 0.28, what is cos(90° - x)?

Mathematics

2 answers:

nevsk [136]2 years ago

5 0

Cos (90-x) x is 28. I hope this helps you.

Ilya [14]2 years ago

5 0

Answer:

The answer is 0.28.

Step-by-step explanation:

We know that,

A trigonometric property is,

$sin A = cos (90^{\circ} -A)$

Where A is any angle,

Given,

$sin x = 0.28$

By the above property,

$sin x = cos (90^{\circ}-x)$

$\implies cos (90^{\circ}-x) = 0.28$

Hence, the answer would be 0.28.

You might be interested in

What is the equation in point-slope form of the line that passes through the points (7, 5)(7, 5) and (−4, −1)(−4, −1) ? y+4=116(

Alex Ar [27]

(7,5)(-4,-1)
slope = (-1-5) / (-4-7) = -6/-11 = 6/11

y - y1 = m(x - x1)
slope(m) = 6/11
(-4,-1)...x1 = -4 and y1 = -1
now we sub...pay close attention to ur signs
y - (-1) = 6/11(x - (-4) ...not done yet...
y + 1 = 6/11(x + 4) <===

6 0

2 years ago

Read 2 more answers

8. Solve for x. A 30 C 180 B 60 D 90

xxTIMURxx [149]

Answer:

 Given :

=> An equilateral Triangle i.e a triangle which have all it's side equal.

To Find :

=>The value of (2x)°

----_______----❣️

<h2>Solution </h2>

----_______----❣️

1. We know that the sum of a triangle is 180°

2.We also know that all the sides of a triangle are equal hence, thier corresponding Angles are Equal too.

So...

 Each angle measures 60°. .....(.1)

3. using(1),

We can find the value of x

3 0

2 years ago

A cylindrical can hold 500 mL and has a radius of 4 cm. Calculate the height of the can

FromTheMoon [43]

I hope this helps you

4 0

2 years ago

A cone and its dimensions are shown in the diagram. What is the volume of the cone in cubic inches

aliya0001 [1]

Answer:1

V = 62.1262 cubic inches

Step-by-step explanation:

The formula for volume of a cone is V = (1/3)πr²h where r is the radius of the base, and h is the height.

We are given the height, h = 7 1/2 inches, or 15/2 inches

We are given the diameter of the base of 5 5/8 inches, or 45/8 inches

The radius is half the diameter, so divide 45/8 by 2. The radius is 45/16.

Plug these values into the formula and find V

V = (1/3)π(45/16)²(15/2)

V = 30,375π/1,536 = 62.12622191

rounding to 4 decimal places gives us 62.1262 cubic inches

8 0

3 years ago

Find the real zeros x4-11x2+18=0

masya89 [10]

Answer:

x=√2, x=-√2, x= 3 and x=-3

Step-by-step explanation:

We need to solve the equation x^4 - 11x^2+18=0

We can replace x^4 = u^2 and x^2 = u

So, the equation will become

u^2 -11u+18 = 0

Factorizing the above equation:

u^2 -9u-2u+18 =0

u(u-9)-2(u-9)=0

(u-2)(u-9)=0

u=2, u=9

As, u = x^2, Putting back the value:

x^2 =2 , x^2 =9

taking square roots:

√x^2 =√2 ,√x^2=√9

x=±√2 , x = ±3

so, x=√2, x=-√2, x= 3 and x=-3

6 0

2 years ago