Which is rational and which is irrational?

Answer:

A

Step-by-step explanation:

Corresponding angles are angles that you can follow down the transversal and they will land in the same spot on the other parallel line.  Look at angle 8.  It is the bottom left angle in the group of 4 angles around it.  If you slide it to the left it would land right on top of angle 4 which is also in the bottom left of its group of 4 angles.

You can do the same thing taking angle 8 down to angle 12.

Answer:

Three-fifths of the men in chemistry class have beards and two-thirds of the women have long hair. If there are 120 men in the class and 46 are not in the above groups, how many men and how many women are in the class?

Step-by-step explanation:

Ans :

Answer:

awnser B and fbe is 55

Step-by-step explanation:

the entire picture is 180 so cut in half there for 90 ok abfe is 90 so bigger section is always 55 and smaller is 35 ok

If the measure of ∠ABD is 6.2 times greater than the measure of ∠CBD=25° and if ∠ FBE and ∠ EBD are congruent then ∠ FBE =65°.

Given that the measure of ∠ ABD is 6.2 times greater than the measure of ∠ CBD and ∠ FBE and ∠ EBD are congruent.

We are required to find the measure of ∠ CBD and ∠ FBE.

∠ABD=6.2*∠CBD--------1

∠ABD+∠CBD=180°

6.2 ∠CBD+∠CBD=180  (From equation 1)

7.2 ∠CBD=180

∠CBD=180/7.2

∠CBD=25°

∠ABD=6.2*25

=155°

∠ABD=90+∠EBD

155=90+∠EBD

∠EBD=155-90

∠EBD=65°

Because ∠ FBE and ∠ EBD are congruent, ∠ FBE =65°.

Hence if the measure of ∠ABD is 6.2 times greater than the measure of ∠CBD=25° and if ∠ FBE and ∠ EBD are congruent then ∠ FBE =65°.

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Answer:

18 is .20

19 is c+5 over 3

Step-by-step explanation:

18.

p= 4C 1 /4C1 * 5C1 = 4 / 4*5 = .20

19.

(3a - 5) / c = 1

3a - 5 = c

3a = c + 5

a = (c + 5) / 3

Answer:

Step-by-step explanation:

X∈R Y∈R

Answer:

1568.156

The 5 in the hundreds place is 10,000x greater than the 5 in the hundredth place

03.3000

The 3 in the ones place is 10x greater than the 10 in the tenths place

5164.66

The 6 in the tens place is 100x greater than the 6 in the tenths place and 1000x greater than the 6 in the hundredth place

9.09

The 9 in the ones place is 100x greater than the 9 in the hundredths place

Answer:

Step-by-step explanation:

1568.156

The 5 in the hundreds place is 10,000x greater than the 5 in the hundredth place

03.3000

The 3 in the ones place is 10x greater than the 10 in the tenths place

5164.66

The 6 in the tens place is 100x greater than the 6 in the tenths place and 1000x greater than the 6 in the hundredth place

9.09

The 9 in the ones place is 100x greater than the 9 in the hundredths place

Answer: 4

Step-by-step explanation: 3%12=4

Answer:

  9) 1/42

  10) 1/14

Step-by-step explanation:

The probability of the compound event is the product of the probabilities of the parts. Note that the first draw (without replacement) modifies the probability of associated with the second draw.

5 is one of 7 tiles. After drawing 5, 6 is one of 6 tiles.

P(5 then 6) = P(5) × P(6 | 5) = 1/7 × 1/6 = 1/42

There are 3 odd tiles among the 7. After drawing one of them, 20 is one of 6 tiles.

P(odd then 20) = P(odd) × P(20 | odd) = 3/7 × 1/6 = 3/42 = 1/14

_____

Alternatively, you can consider the number of permutations of 2 tiles out of 7. That is P(7, 2) = 7!/(7-2)! = 7·6 = 42. Then the trick is to count how many of them will be the sequence of interest.

5 then 6: Among the 42 ways 2 tiles can be drawn, there is only one that is the required sequence: P(5,6) = 1/42.

odd then 20: There are 3 odd numbers, so the possible sequences of interest are (5,20), (7,20), (9,20). That is, there are 3 of 42 sequential draws that match the criteria. P(odd,20) = 3/42 = 1/14.

Answer:

Q1: C

Q2: F

Q3: C

Step-by-step explanation:

Question 7:

100(3+0.2)^2 -24

According to

P arenthesis

E xponents

M ultiplication

D ivision

A ddition

S ubtraction

We must do the parenthesis first.

100 ( 3 . 2 ) ^ 2 - 24 =

Then exponent

100 * 10 . 24 - 24 =

then multiplication

1024 - 24 =

and finally subtraction

1000 (Option C)

________________________________________________________

Question 8:

Sqrt 50 = 7.07

Sqrt 60 = 7.75

7.07 + 7.75

14.81, which is between 14 and 15, answer choice F

________________________________________________________

Question 9:

A = 13

B = 13

C = 25+36 = 7.81

D = 13

Answer is C, which is the only one which is between positive integers 7 and 8.

Answer:

7) C. 1000

8) F. 14 and 15

9) C. [tex]\sf \sqrt{5^2 + 6^2}[/tex]

Explanation:

7.

⇒ 100(3 + 0.2)² - 24

⇒ 100(3.2)² - 24

⇒ 100(10.24) - 24

⇒ 1024- 24

⇒ 1000

8.

⇒ √50 + √60

⇒ [tex]\sf \sqrt{2 \ \times \ 5^2} + \sqrt{2^2\:\times\: 15}[/tex]

⇒ [tex]\sf 5\sqrt{2 } + 2\sqrt{ 15}[/tex]

⇒ 7.071 + 7.745966

⇒ 14.817

So, it lies between 14 and 15.

9.

A, B, D when simplified gives 11 as an answer.

When simplify C,

[tex]\sf \sqrt{5^2 + 6^2}[/tex]

[tex]\sf \sqrt{25 + 36}[/tex]

[tex]\sf \sqrt{61}[/tex]

[tex]\sf 7.8102396[/tex]

This value lies between 7 and 8.

Answer:  B, E, and F.

Step-by-step explanation: -$300 means negative 300 which is not a gain, it is a loss as negative numbers are losses. So A is wrong. +400 indeed is a gain as it is a positive and has an addition sign in front of it Using this knowledge we can see that besides B, only E and F are correct.

Answer:

ITS 3

Step-by-step explanation:

Answer:

45 degrees

Step-by-step explanation:

OK so

is L and N are equal you can represent that as 2x

the remaining angle should be 90 because right triangles always have a 90 degrees angle somewhere

you know that all three angles of a triangle add up to 180 so that's what the total is

2x+90=180

subtract 90 from both sides

2x=90

divide both sides by 2

x=45

Answer: #1) 3. The semicircle has twice the area of the circle

#2) 3. 28.26 cm

Step-by-step explanation:

#1) The formula for area of circle is A=πr².

First, plugging in the radius for the circle, A=π(5)², we get an area of about 78.54 inches².

Plugging in the radius for the semicircle, A=π(10)², which is equal to 314.159.... However, since it is a SEMI-circle, we will divide this value by 2 to give us an area of about 157.08 inches².

Comparing the two areas, we see the semicircle has twice the area of the circle as 78.54 x 2 = 157.08.

#2) Again use the area of circle formula, A=πr². The radius is half the diameter, so half of 6cm=3cm, meaning r=3. plug it in.

A= π(3)²

A= 28.27 cm²

Answer:

184m^2

Step-by-step explanation:

Ok first we will look at the triangles.

The formula for triangles is 1/2bh

The base in our triangle is 6, and the height is 4. Also, we have 2 such triangles.

so, we need to plug in our values into our formula, and multiply it by 2, since there are 2 triangles.

2( 1 / 2 ( 6 ) ( 4 ) )

2 ( 12 )

24.

The area of the 2 triangles is 24.

Now, the next part is gonna be hard to explain, but I promise the final answer is right.

lets find the area of the rectangle in the middle. That's easy, 6*10 = 60.

Because the top rectangle would connect to the 5m side of the triangle, then the area of the rectangle would be 10*5 = 50

The same thing applies to the bottom rectangle, so its also 50.

24+50+50+60 = 184

The unit is meters(m)

So, 184 m^2

The surface area of the prism based on the net provided will be 184 square meters.

Let h be the height and b be the base of the triangle.

Let L₁, L₂, and L₃ be the length and W be the width of the rectangle.

Then the surface area of the triangular prism will be

Surface area = 2 Area of triangle + 3 Area of rectangle

Surface area = h x b + (L₁ + L₂ + L₃) x W

From the figure, the length of the rectangles will be 5 m, 6 m, and 5m,  and the width is 10 m.

From the figure, the height is 4 m and the base is 6 m of the triangle. Then we have

Surface area = 4 x 6 + (6 + 5 + 5) x 10

Surface area = 24 + 16 x 10

Surface area = 24 + 160

Surface area = 184 square m

The surface area of the prism based on the net provided will be 184 square meters.

More about the surface area of a triangular prism link is given below.

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Answer:

24 tons

Step-by-step explanation:

My senses point to this is the correct answer.

Answer:

See below

Step-by-step explanation:

5/8 - 1/4 = 3/8ths of L  = 9 tons ......    

3/8 L = 9

L  =  9 * 8/3

  = 24 tons full load

Answer:50 point

nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

Answer:

-22.5

Step-by-step explanation:

-15- |-7.5|

after taking the absolute value off, -7.5 would become positive 7.5. But then the negative outside the absolute value makes it negative again.

-15-7.5

=-22.5

The simplified expression -15 - |-7.5| is equal to -22.5.

To simplify the expression -15 - |-7.5|, we'll follow these steps:

Evaluate the absolute value: |-7.5|.

The absolute value of a number is its distance from zero on the number line. In this case, |-7.5| is equal to 7.5 because 7.5 units away from zero.

Substitute the absolute value into the expression:

-15 - 7.5.

Perform the subtraction:

-15 - 7.5 = -22.5.

Therefore, the simplified expression -15 - |-7.5| is equal to -22.5.

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9 inches

Let x be the length of the side of the square.

If the base of the triangle is 3 times as long as the side of the square, it is 3 times x, or 3x.

The same can be said for the legs, which is 1 inch more than twice the side of the square, so 2x + 1.

The triangle can therefore be thought to look like the triangle below.

The perimeter is therefore (2x+1) + (2x+1) + 3x, which is 7x + 2.

The sum of perimeters of both the square and triangle is 46.

The perimeter of the square is 4x, so the sum of perimeters is 4x + (7x+2), or  11x + 2.

11x + 2 = 46, so 11x = 44.

x is therefore 4

The leg is 2x + 1, so the leg is 8 + 1, so the length of the leg is 9 inches.

The appropriate options to fit in the circle regarding the proof will be:

From the information given, it should be noted that the circle centered at point C passes through points D and E and the circles passing through point F, centered at points D and E, have radii of length DF.

Here, it should be noted that the side-side-side congruence is illustrated for 2, 5, and 6. This illustrates that the will have the same lengths for their sides as they're equal.

Therefore, the correct options are illustrated above.

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If [tex]x = \frac{1}{r} +1[/tex]

We have:

[tex]xr + 2/3 = 2r\\ < = > xr - 2r = -2/3\\ < = > (x - 2)r = -2/3\\ < = > (1/r + 1 -2) r = -2/3\\ < = > (1/r - 1)r = -2/3\\ < = > (1/r)r - (1)r = -2/3\\ < = > 1 - r = -2/3\\ < = > r = 1 + 2/3 = 5/3[/tex]

ANSWER: r = 5/3 if x = 1/r + 1

Ok done. Thank to me :3

Answer:

.20   or   20%

Step-by-step explanation:

100 possible sets of two spin combos

  20 result in the desired 'next-door ' combo

       20/100 = .20   or 20 %

Answer:

middle

Step-by-step explanation:

First question: A

Second Question: A

The equation of the circumference of a circle is 2pi radius you multiply the radius by 2 and then multiply it by pi.

Hope this helps :) ....

Answer: 2/3 π ³+ πr²(h-r)

Step-by-step explanation:

Answer:

11. When 3 students are working, they each need to plant 36 trees. So the club must plant 36*3 = 108 trees total. The equation would be t = 108/s, and the constant of proportionality is 108.

12. The constant of proportionality represents the number of trees the club needs to plant regardless of the number of participants.

Answer:

96 Cherries

Step-by-step explanation:

This is a question on some unit conversions.

First we convert 3 pounds to ounces.

Given 16 ounces = 1 pound,

3 pounds = 3 x 16 ounces = 48 ounces

Next, we will find the number of cherries required.

Number of Cherries required = Total weight of cherries needed (in ounces) / Weight per cherry.

= [tex]\frac{48}{0.5}[/tex]

= 48 * 2

= 96 cherries