Give that cos 42* = 0.743, what is the sine of the complementary angle?

Answers

Answer 1

Answer: the complement of 42 is 90-42 or 48. sin of 48 is 0.743144

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Which expression represents 8 less than two times x? A)2x -8. B)8 - 2x C) 8x - 2. D) 2 - 8x

Answers

A is the answer because the two is being multiplied by the x and the eight is being subtracted from that product.

8 less than two times x.

8 less than 2*x

8 less than 2x

= 2x - 8.

Option A.

PLSSSS HELP IF YOU TRULY KNOW THISSSS

Answers

Answer:

$(1)/(5^(9) )$

Step-by-step explanation:

The length of a side of an equilateral triangle is 40 centimeters.What is the length of the altitude of the triangle?

Answers

Answer:

34.64 cm

Step-by-step explanation:

sin 60 = $(x)/(40)$

sin 60 (40) = x

34.64 = x

equilateral triangles have 60° angles.

sin Ф = $(opposite)/(hypotenuse)$

hypotenuse is 40. All sides are 40.

x = opposite or height of triangle.

Y-0.45=-2.9 need assistance

Answers

Y = -2.45

In order to isolate Y, you must add 0.45 to the other side of the equal sign, since you are to add 0.45 to -0.45 to isolate Y.

Y = -2.45 Y = -2.45 Y = -2.45

A surface area of a cube is 96cm. What is the length of one side? What is its volume

Answers

You are giventhe surface area of the cube which is 96cm2. You are asked to find the lengthof one side and its volume. Note that the surface area of the cube is equal to6 times the square root of s (the side of the cube) and the volume is the cuberoot of s. So,

SA = 6*s^2
96cm2 = 6*s^2
s^2 = 16cm
s = 4cm,this is the length of one side.

V = s^3
V = (4)^3
V = 64cm3,this is the volume of the cube.

12, 96/8 equals 12, so therefore it is 12 cm cubed

If the circumference of a baseball is 24 cm what is the volume of the object

Answers

$2\pi R=24cm\ \ \ /:2\pi\n\nR=(24)/(2\pi)\n\nR=(12)/(\pi)\ (cm)\n\nV=(4)/(3)\pi R^3\n\nV=(4)/(3)\pi\cdot\left((12)/(\pi)\right)^3=(4)/(3)\pi\cdot(1728)/(\pi^3)=(2304)/(\pi)\ (cm^3)\approx=(2304)/(3.14)\approx733.76\ (cm^3)$

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