Find the area of a 7-gon with side length 10. Round to a whole number.

Answers

Answer 1
Answer: Answer:
n = 7
a = 10 m
r = 10.3826 m
R = 11.5238 m
A = 363.391 m2
P = 70 m
x = 128.571 °
y = 51.4286 °

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The serial number on a bill consists of a letter followed by seven digits and then a letter. How many different serial numbers are possible, given the following conditions? (a) Letters and digits cannot be repeated. (b) Letters and digits can be repeated. (c) The letters are nonrepeated consonants and the digits can be repeated. (Let y be a consonant.)

Answers

(a) Letters and digits that cannot be repeated will be 39,31,20,000.

(b) Letters and digits that can be repeated will be 6.76 × 10⁹.

(c) The letters are nonrepeated consonants and the digits that can be repeated will be 2.35 × 10⁹.

What are permutation and combination?

A permutation is an act of arranging items or elements in the correct order. Combinations are a way of selecting items or pieces from a group of objects or sets when the order of the components is immaterial.

The serial number on a bill consists of a letter followed by seven digits and then a letter.

A)  Letters and digits cannot be repeated. Then the number of ways will be

⇒ 26 x 10 x 9 x 8 x 7 x 6 x 5 x 4 x 25

⇒ 39,31,20,000

B) Letters and digits can be repeated. Then the number of ways will be

⇒ 26 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 26

⇒ 6.76 × 10⁹

C) The letters are non-repeated consonants and the digits can be repeated.

⇒ (5 x 10⁷ x 5) + (21 x 10⁷ x 5) + (5 x 10⁷ x 21)

⇒ 0.25 × 10⁹ + 1.05 × 10⁹ + 1.05 × 10⁹

⇒ 2.35 × 10⁹

More about the permutation and the combination link is given below.

brainly.com/question/11732255

#SPJ2

Answer:

408,844,800.

Step-by-step explanation:

(a) There are 26 letters in the alphabet and 10P7 ways of ordering  7 digits.

10P7 = 10!/3! = 604800

The answer is 26* 604800  * 26

= 26^2 * 604800

= 408844800.

What is the next value 4d 7g 10j 13

Answers

13m 16p

Add three to every number next as well as move up three letters.

For example:
1A is the starting point.
To get from 1A to 4D you add three.

1 + 3 = 4
A to get to D is three letters up.
A b c D

Same thing for 4D to get to 7G.

4 +3 = 7
D to get to G
D e f G

Your answer:
I'm not sure if you wanted me to find the letter of the equation or the actual next part. On your question you have just 13 up there, no letter so if youre trying to find the letter (13m) is your answer.

If you're trying to find the next equation to the puzzle (16p) is your answer.

Hope this helped!:)

Can you solve y=2x-5 and 4x-y=7 with steps?

Answers

y=2x-5 \n4x-y=7 \n \n\hbox{substitute 2x-5 for y in the 2nd equation and solve for x:} \n4x-(2x-5)=7 \n4x-2x+5=7 \n2x+5=7 \n2x=7-5 \n2x=2 \nx=(2)/(2) \nx=1 \n \n\hbox{substitute 1 for x in the 1st equation:} \ny=2 * 1-5=2-5=-3 \n \n\hbox{the answer:} \nx=1 \n y=-3
This is straight forward:
You have already said:    y = 2x - 5 ...........(i)
                                             4x - y = 7............(ii)
So anywhere we see, y in equation (ii) we replace it with (2x - 5).
                                            4x - (2x - 5) = 7
                                             4x - 2x + 5  = 7
 Note minus sign before the bracket, changes sign inside the bracket.
                                              2x  + 5 = 7
                                              2x =  7 - 5.
                                              2x = 2        Divide both sides by 2.
                                                x  = 2/2
                                                x =1.
Remember from (i)  y = 2x - 5,  y = 2*1 - 5 = 2-5 = -3.
Therefore,  x = 1,    y = -3.
Those are the steps.

ANSWER QUICK!!! What is the slope in the graph? * undefined
m = 1
m = 0
m=-1

Answers

Answer:

m=1

Step-by-step explanation:

tttttttttttttt tttt

1 because there is a point at 1,1 0,0 and -1,-1

Which of the following is the solution of 0.125x+1-0.25x<-3

Answers

Step-by-step explanation:

To find the solution to the inequality 0.125x + 1 - 0.25x < -3, we can simplify and solve for x.

0.125x + 1 - 0.25x < -3

Combining like terms:

-0.125x + 1 < -3

Subtracting 1 from both sides:

-0.125x < -4

Now, to isolate x, we divide both sides by -0.125. However, since we are dividing by a negative number, we need to reverse the inequality sign:

x > -4 / -0.125

Simplifying the division:

x > 32

Therefore, the solution to the inequality 0.125x + 1 - 0.25x < -3 is x > 32.

WILL MEDAL AND FANThe formula Q = MCT where Q = heat flow, M = mass, C = specific heat, and T = change of temperature is used to calculate heat flow. Solve this formula for T.

T = Q – MC
T = Q + MC
T = QMC
T = Q divided by the quantity M times C

Answers

The answer is T= Q divided by the quantity M times C. To solve for T, the goal is to isolate T from the rest of the factors which are M and C. To do this, divide M and C from both sides of the equation. This will cancel M and C from the right-hand side, leaving only T. So, there you have it, T is now equal to Q divided by the quantity M times C.
To solve this formula for T it is the last one.
T = Q divided by the quantity M times C.