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3 years ago

How do you turn 25.4 in to a scientific notation

Mathematics

2 answers:

Sveta_85 [38]3 years ago

8 0

The answer would be 2.54X10

postnew [5]3 years ago

6 0

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PLEASE HELP ME! WILL MARK BRAINLIEST TO THE FIRST ONE TO ANSWER PROMISE

inysia [295]

Answer:

x = 5in

y = 16in

Step-by-step explanation:

Hypotenuse: 32/8 = 4

So, x = 20/4

x = 5

y = 4*4

y = 16

8 0

3 years ago

Find the Length of arc . Round to the nearest hundredth.

pshichka [43]

A) 14.66

Arc length is equal to radius multiplied by the central angle in radians not degrees

4 0

3 years ago

Find the perimeter of the polygon with the vertices X(−1, 3), Y(3, 0), and Z(−1,−2). Round your answer to the nearest hundredth

antoniya [11.8K]

Answer:

The perimeter of the polygon is $P=14.47\ units$

Step-by-step explanation:

we know that

The perimeter is the sum of the length sides of the polygon

In this problem

P=XY+YZ+XZ

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

step 1

Find the distance XY

we have

X(−1, 3), Y(3, 0)

substitute

$d=\sqrt{(0-3)^{2}+(3+1)^{2}}$

$d=\sqrt{25}$

$dXY=5\ units$

step 2

Find the distance YZ

we have

Y(3, 0), Z(−1,−2)

substitute

$d=\sqrt{(-2-0)^{2}+(-1-3)^{2}}$

$d=\sqrt{20}$

$dYZ=4.47\ units$

step 3

Find the distance XZ

we have

X(−1, 3), Z(−1,−2)

substitute

$d=\sqrt{(-2-3)^{2}+(-1+1)^{2}}$

$d=\sqrt{25}$

$dXZ=5\ units$

step 4

Find the perimeter

P=XY+YZ+XZ

$P=5+4.47+5=14.47\ units$

5 0

3 years ago

Sam rotated parallelogram ABCD 90° clockwise around the origin. If angle A is 130° and angle B is 50°, what is the degree measur

fomenos

The degree measurement of angle A is already equal to 50 degrees.

4 0

3 years ago

Read 2 more answers

Assume that you are on a cross-country flight at an altitude of 4,500 feet pressure altitude and your course is 275 degrees. The

lukranit [14]

First you need to find your True Air Speed (TAS). I used the formula:

$TAS=IAS\sqrt{\frac{\rho_0}{\rho}}\\$

where $\rho_0$ is the density at mean sea level at 15°C which is 1.225 kg/m^3 and $\rho$ is the density of the air in which the airplane is flying. In this case with the given altitude and air temperature is about: 1.073 kg/m^3.

So TAS is equal to: 123 kt in this case.

To get the time of arrival you need to get your ground speed. For that you need to compensate for the wind speed and direction. With the drift angle you can get your ground speed.

In this case you get ground speed of 115 kt which means to travel 218 nautical miles you need 1 h and 53 min which means you will arrive at: 1135.

6 0

3 years ago