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3 years ago

I need help, WILL GIVE BRAINLIEST IF RIGHT. i need it in percents

Mathematics

1 answer:

atroni [7]3 years ago

8 0

Answer:

2.) 33.33%

3.) 50%

Step-by-step explanation:

There is only one 5 and only one 2. There are 6 sides. The fraction is 2/6, and as a percent it's 33.33%.

There are 3 even numbers and three odd numbers. The chance of getting an even then an odd would be 3/6, or 50%.

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The length of a rectangle is (6x2 + 3x - 2) units, and its width is (x3 - 2x + 5) units. Part A: What is the area of the rectang

strojnjashka [21]

<span>Part A: Area = length * width = (6x^2 + 3x - 2) * (x^3 - 2x + 5) Multiply it out and simplify.

part B: </span><span>Take the first term 6x^2 and multiply each of the term x^3, -2x & 5. Then take 3x and multiply each of the term x^3, -2x & 5. Do the same with -2. Then add like terms and simplify.</span>

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3 years ago

Find the measure of the arc or central angle indicated. Assume that lines which appear to be diameters are actual diameters.

vfiekz [6]

The measure of the Central Angle indicated is; 45°

<h3>How to find the central angle of a circle?</h3>

The central angle will be the angle subtended at the center by arc FE and arc CB.

Now, we see that angle ∠FOB = 135° and since we know that sum of angles on a straight line is 180°, then we can say that;

Central Angle = 180° - 135° = 45°

Angle subtended by Arc CD at the center is;

θ = 180 - (81 + 45)

θ = 54°

Read more about Central Angle at; brainly.com/question/17074363

#SPJ1

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2 years ago

The triangles below are similar. Triangle Y X Z. Side Y X is 6 centimeters, X Z is 7 centimeters, and Z Y is 3 centimeters. Tria

zavuch27 [327]

Answer:

Step-by-step explanation:

Triangles are similar when corresponding sides have the same ratio. Corresponding sides will have corresponding end point vertices. The similarity statement lists corresponding vertices in the same order.

<h3>corresponding sides</h3>

The side lengths, smallest to largest, for the two triangles are ...

3 cm -- ZY
6 cm -- YX
7 cm -- XZ

And for the other triangle, ...

6 cm -- BC
12 cm -- AB
14 cm -- AC

<h3>corresponding vertices</h3>

The points joining the each side to the next one longer, in order for the two triangles, are ...

Y, X, Z and B, A, C

The vertices corresponding to ZYX in the same order are CBA.

triangle ZYX is similar to triangle CBA

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2 years ago

Read 2 more answers

The metal in a penny is worth about 0.505 cent . How much cents is this written as a fraction?\

Ratling [72]

0.505 means 505 * 0.001, or 505 * 1/1000. This is equivalent to 505/1000, or 101/200.

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3 years ago

An observation from a normally distributed population is considered "unusual" if it is more than 2 standard deviations away from

Liula [17]

Answer:

Step-by-step explanation:

Given that an observation from a normally distributed population is considered "unusual" if it is more than 2 standard deviations away from the mean. There are several contaminants that can harm a city's water supply. Nitrate concentrations above 10 ppm (parts per million) are considered a health risk for infants less than six month of age.

We can say 1.59 and 2.52 if taken average would be the mean

Mean = 2.01

The deviations on either side = 2.52-2.01 = 0.41

This can be taken as 2 std dev

So std dev = 0.205

Hence we can take nitrate concentration is normal with mean = 2.01 and std deviation is 0.205

N(2.01, 0.205)

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3 years ago