PLZZ HELPPPPPPPPPPPPPP

Answer:

The correct answer is B :)

Step-by-step explanation:

The number of k-combinations(5) from a given set S of n (24) elements

Calculating the number of combinations

Substituting our values for n= 24 and k= 5 we get

24C5 = 24!5!(24−5)!

Subtracting 5 from 24 is 19

24!5!(19)!

Expending factorial

24X23X22X21X20X19!(5X4X3X2X1)X19!

Cancelling common factors

24X23X22X21X205X4X3X2X1

Multiply numerator values and denominator values

5100480120

Divide the 5100480 by 120

Final Result :42504.0

There are 42504.0 combinations to choose 5 items out of a set of 24

Answer:

EC, DE, CD

Step-by-step explanation:

∠D=34°    ∠C=47°     ∠E= 180-34-47=99°

∠D < ∠C < ∠E

By the theorem: If one angle in a triangle is larger than another angle in a triangle, then the side opposite the larger angle will be longer than the side opposite the smaller angle.

EC < DE < CD

Answer:

x² - 4x + 12

Step-by-step explanation:

x=2+2.82843i

x=2−2.82843i

Answer:

The question is not written correctly (and I couldn't find the actual question online), I assume that the actual question is:

"Angles A and B are complementary. If mL A = 2*x + 43 and mL B = 47°. Solve for x to find the measure of L A."

So I can answer this in a step by step way:

First, two angles are complementary if the sum of their measures is equal to 90°

Then we must have:

mL A +  mL B = 90°

If we replace these by the measures, we have:

2*x + 43° +  47° = 90°

Now we can solve this for x.

2*x + 90° = 90°

2*x = 90° - 90° = 0°

Then we must have x = 0°.

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Answer:

A

Step-by-step explanation:

Answer:

In group A, they have at least one 90 degree angle. In Group B, they do not have any 90 degree angles.

Answer: -24

Step-by-step explanation:

[tex]\frac{x}{6} -18 = -22[/tex]

[tex]\frac{x}{6} = -22 + 18[/tex]

[tex]\frac{x}{6} = -4[/tex]

[tex]x= -4*6[/tex]

[tex]x= -24[/tex]

check work

[tex]\frac{(-24)}{6} -18 = -22[/tex]

[tex]-4 -18 = -22[/tex]

[tex]-22 = -22[/tex]

Answer: H$241.67

Step-by-step explanation:

Solve for x and multiple and get your answer!

Answer: 40 phones

Step-by-step explanation:

The company expects that every 2 out of 25 phones will have some form of defect.

In percentage terms, this is:

= 2 / 25 * 100%

= 8%

If there are 500 phones therefore, the defected phones would still be the same percentage and the actual number would be:

= 8 % * 500

= 40 phones

Answer:

√(3)/3

Step-by-step explanation:

cos(A) = adj./hyp.

adj. = √(3) or √(3)/2

hyp. = 2 or 1

use unit circle:

hyp. = 1

adj. = √(3)/2

use pythagorean theorem c² - b² = a²

1² - (√(3)/2)² = 1 - 0.75 = 0.25

a² = 0.25

a = √(0.25)

a = 0.5

tan(A) = opp./adj.

tan(A) = 0.5/(√(3)/2)

tan(A) = 1/√(3)

rationalize

tan(A) = √(3)/3

Answer:

4 liters

Step-by-step explanation:

Answer:

Rs.12500

Step-by-step explanation:

18% = saved

100 - 18 = 82%(used salary)

82% = 10250

100% = ?

100 × 10250 = 1025000

1025000 ÷ 82 = Rs.12500

Answer:

1, 6, 8 are each 55 degrees

2, 4, 5, 7 are each 125 degrees.

Step-by-step explanation:

We know 3 things that apply here:

1) When parallel lines are intersected by a transversal, the corresponding angles have the same measure. (the angles in the same position on the parallel line...2 and 4 are equal, 5 and 7 are equal, etc)

2)  Two angles that form a straight line equal 180 degrees

3) Angles that are opposite each other (vertical angles) in this situation are equal. (1 & 6 are equal, 4 & 7 are equal)

So what would be angle #3 is 55 degrees. That means the supplemental angle, #4 is 125 degrees.

Which makes angle 7 125 degrees and angle 8 55 degrees.

And then you apply these rules for angles 1, 2, 5 and 6.

Please let me know if you have any questions.

The measures of the angles are ∠1 = 55°, ∠2 = 125°, ∠4 = 125°, ∠5 = 125°, ∠6 = 55°, ∠7= 125°, and ∠8 = 55°

When a transversal line cut parallel lines, angles are formed such as corresponding angles, alternate angles, vertical angles etc.

Therefore, the measurement of 1, 2, 3, 4, 5, 6, 7 and 8 are as follows;

∠8 = 55°(vertically opposite angles)

∠4 = 180 - 55 = 125° (angle on a straight line)

∠7 = 125° (vertical angles)

∠6 = 55°(alternate angles)

∠2 = 125°(alternat angles)

∠1 = 55°(vertical angles)

∠5 = 125°(vertical angles)

learn more on angles here: https://brainly.com/question/26823102

Answer:

Lever turns about a fixed point called a fulcrum.

Step-by-step explanation:

hope it helps..

Answer:

lever

Step-by-step explanation:

Answer:

Dimplified: [tex]3.88[/tex]×[tex]10^{10}[/tex], or [tex]38,800,000,000[/tex]

Unsimplified: [tex]38,792,400,000[/tex]

Step-by-step explanation:

Remember, the volume of a sphere is [tex]V=[/tex][tex]\frac{4}{3}[/tex][tex]\pi r^{3}[/tex]

This comes into: [tex]3.87924[/tex]×[tex]10^{10}[/tex]

As we know, the shape of mars is a sphere.

Let me know if you have a question, or if it lets you not have the ×[tex]10^{10}[/tex]

if the 20% of a number is 386, what will be 30% of the same number

Answer will be 157

If 20% of a number is 386,  30% of the same number is 579

Let the number be x.

So,we have:

20% * x = 386

Express 20% as 0.20

0.20 * x = 386

Divide both sides by 0.20

x = 1930

30% of the number is represented as:

30% * 1930

Evaluate the product

30% * 1930 = 579

Hence, 30% of the same number is 579

Read more about percentage at:

https://brainly.com/question/11360390

Answer:

$270.

Step-by-step explanation:

Answer:

9π

Step-by-step explanation:

D = r/2 = 6

r = 3

A = r²π

9π = A

Answer:

Explanation:

Hope you get it!

Answer:

option one is correct

Step-by-step explanation:

3 times =15

5times 5 =25

Answer:

18 children weighed less than 50 pounds.

Step-by-step explanation:

Ok, adding into the explanation what the heck this kind of a table is. The "stem" column is the tens place of each of the children's weights. The "leaf" is the ones digit of each of the children's weights. So in the row where the stem is 2, there were 2 kids weighing 23 and 25 pounds.

For your question, we have to add up how many students have a weight with a "stem" less than 5, because that's where 50 pounds starts.

8 + 2 + 5 + 3 = 18 children weighed less than 50 pounds.

Answer:

this answer for this question

y=833

Answer:

y = x^2 + 4x - 7

y=833

Step-by-step explanation:

brainliest?

Answer:

area of circle = pi * r^2

the radius is equal to 1/2 of the diameter.

Step-by-step explanation:

380.13/3.14 = 121

square root of 121=11

Therefore the diameter is 11 meters.

Answer:

15 in.

Step-by-step explanation

AREA OF A TRIANGLE= B X H / 2

6 X 5=30

30/2=15

Answer:

Step-by-step explanation:

[tex]\sqrt{x-3}[/tex] = x - 5 ( x ≥ 3 )

( [tex]\sqrt{x-3}[/tex] )² = ( x - 5 )²

x - 3 = x² - 10x + 25

x² - 11x + 28 = 0

(x - 4)(x - 7) = 0

[tex]x_{1}[/tex] = 7

[tex]x_{2}[/tex] = 4

Check the answer:

1). x = 7

[tex]\sqrt{7-3}[/tex] = 7 - 2

√4 = 2

2 = 2

2). x = 4

[tex]\sqrt{4-3}[/tex] = 4 - 5

1 = - 1 (False statement) ⇒ x = 4 is an extraneous solution.

Answer:

430 cm squared

Step-by-step explanation:

SA= 2(Length x Base, Base x Height, Height x Length)

15cm x 5cm +

15cm x 7xm +

7cm x 15cm =

215cm

215cm x 2 = 430 cm squared.

(it's perimeter of a 3D object so it must be squared, then volume would be cubed)

I hope this helps <3

Answer:

A≈$2819

Step-by-step explanation:

In this case P=$2500, r=3%, t=4