Mathematics High School

Find the circumference of a semicircle with diameter d cm​

Answers

Answer 1

Answer:

Circumference of the semi-circle is d(π/2 + 1)

Step-by-step explanation:

Circumference of a semicircle is πr + 2r

So, since r = d/2,

therefore, π*d/2 + 2*d/2 = πd/2 + d = d(π/2 + 1).

Related Questions

Review Exercise 14b
Find the truth set of the following equations
i) 3(2x+1)=8​

Answers

Answer:

5/6

Step-by-step explanation:

x = 5/6.

HELP ASAPPPPP PLZZZZ Question in pic!!!!!

Answers

Step-by-step explanation:

Given

5y + 68 = 3y + 96 (vertically opposite angles) and

3x + 18 = 5x + 2 (vertically opposite angles)

Now solve for x.

[tex]3x + 18 = 5x + 2 \\ 3x + 18 - 5x = 2 \\ - 2x + 18 = 2 \\ - 2x = 2 - 18 \\ - 2x = - 16 \\ x = - 16 \div - 2 \\ = 8[/tex]

Now Solve for y.

[tex]5y + 68 = 3y + 96 \\ 5y + 68 - 3y = 96 \\ 2y + 68 = 96 \\ 2y = 96 - 68 \\ 2y = 28 \\ y = 14[/tex]

170% of what number is 40?
Provide and exact fraction answer

Answers

Answer: 23.53

Step-by-step explanation:

We have, 170% × x = 40

or,

170

100

× x = 40

Multiplying both sides by 100 and dividing both sides by 170,

we have x = 40 ×

100

170

x = 23.53

If you are using a calculator, simply enter 40×100÷170, which will give you the answer.

Solve for c.
9 = 1+c

Answers

Answer:

c = 8

Step-by-step explanation:

What is the equation of the line shown in the graph?

Answers

y = -5x + 6. Hope that helps.

This list gives the height of different plants in inches. 10.25, 11.25, 11.00, 10.50, 10.50, 11.00, 10.75, 10.25, 11.00, 10.25, 10.50, 10.75, 10.25, 10.25, 10.50, 11.25, 11.00, 10.75 Create a line plot to display the data. To create a line plot, hover over each number on the number line. Then click and drag up to plot the data.

Answers

Answer:

10.25 xxxx 10.50 xxxx 10.75 xxx 11.00 xxxx 11.25 xx

Step-by-step explanation:

hope this helps

Answer:

10.25 | 5

10.50 | 4

10.75 | 3

11.00 | 4

11.25 | 2

Step-by-step explanation:

I took test on K12.

Here if proof I got it correct.

Will Mark Brainliest <3

Please help!!!

Answers

It would be 8,993,200

Which of the following is a valid conclusion about the data?

Answers

Answer: D

Step-by-step explanation:

Please help! *Giving brainiest* due really soon

Answers

The correct answer for the question is C I’m sure of it

What is the probability of picking a red marble
and keeping it, picking another red marble and
keeping it, then picking a blue marble? (leave
answer in fraction form in lowest terms)

Answers

how many marbles are there

100-(8x2)+15/3 and pls explain

Answers

Answer:

89

Step-by-step explanation:

Firstly u need to calculate the numbers in the bracket .

So,

8×2 = 16

15/3 = 5

100 - 16 + 5 = 89

Did I choose the correct answer?

Answers

Answer:

11.90

Step-by-step explanation:

oh yes sorry I didn't see what you chose lol

Answer:

Yes

Step-by-step explanation:

Rounding two decimal points mean there will be two numbers behind the decimal and since 6 is more than 5 and influences the result of the 9 the answer would be 11.90. It could be 11.9 but having said there is two decimal places there should be a 0 hope this helps!!

Solve for x, then find the m HED. Please helppp

Answers

Answer:

x=3, HED =39

Step-by-step explanation:

Solution :

[tex]10x + 21 + 13x = 90[/tex]

[tex]23x = 90 - 21[/tex]

[tex]23x = 69 = > x = 3[/tex]

Angle HED = 13 × 3 = 39°

Hope this helps!

What is the slope of the line containing the points (-4,-6) and (3,-4)

Answers

Answer:

got you right now

Step-by-step explanation:

the slope is -2\3

can someone please help me on numbers 5-10 and please show and explain your work HELP THIS IS DUE SOON thxs uwu

Answers

Answer:

hi bri

Step-by-step explanation:

Please help! The question is on the photo

Answers

Answer:

(0, 3) (0, -4) (-5, 4) (1, 1)

What is x-2.3y=0.6 -x+5.1y=-6.2

Answers

You have to add the like terms then it will equal y=2

help please! i put extra points :(

Answers

Answer:

[tex]c \: (x + 5)(x - 1)[/tex]

A student is 90 cm tall and growing at a rate of 3 cm per month. At this rate, in how many months will the student grow to a height of 132 cm?

Answers

Answer:

14 months

Step-by-step explanation:

14x3=42

42+90= 132

what equals 7x+19 pls help

Answers

Answer:

it’s unknown

Step-by-step explanation:

the variable is unknown so it would stay 7x + 19 until you know the variable unless you’re able to do 26x

What is the total number of outcomes in each situation?

rolling two number cubes

A. 8
B. 18
C. 36
D. 12

Answers

Answer:

36

Step-by-step explanation:

What is the value of X? x=?º

Answers

Answer:

X=30⁰

Step-by-step explanation:

X=120-60/2

X=60/2

x=30

hope it helps....

The difference of the two numbers is 3 their sum is 13 find the numbers please help

Answers

Answer:

2x-3=13

2x=13+3

2x=16

2x/2=16/2

x=8

Answer:

first number is 8

second number is 5

Step-by-step explanation:

Wanda's dog eat 35 pounds of dog food each week. At this rate, how many pounds of dog food they eat in 12 days what is the answer?

Answers

Answer:

420

Step-by-step explanation:

35 x 12 = 420

Answer:

420

Step-by-step explanation:

The first five terms in a pattern are shown below. -0.5, -0.25, 0 , 0.25, 0.5, . . . Which equation represents the pattern?

Answers

Answer:

x + 0.25

Step-by-step explanation:

In this equation, x is representing an integer ( - 0.5, - 0.75, 0, 0.25) whilst 0.25 is a constant

Put these numbers in order from least to greatest.

Answers

i believe the order you have it in is correct

Simplify this to the lowest form: 2c^2 - 6 + c^2 - 3 + 3c^3

Answers

Answer:

7c^2 - 9

Step-by-step explanation:

2c^2 - 6 + c^2 - 3 + 3c^3

7c^2 - 9

What triangle congruence postulate would you use to prove these triangles are congruent.

Answers

ssssssssssssssssssssss

Answer:

I don't know

Step-by-step explanation:

sorry

find the slope-intercept equation of the line that passes through (0,1) and has a slope of -2/3

Answers

Answer:

y = -2/3x + 1

Step-by-step explanation:

We already know the slope, so all we need to do is find the y-intercept. To find that, we need to plug the coordinates into the equation so far, which is,

y = -2/3x + b

1 = -2/3(0) + b

1 = 0 +b

1 = b

So the equation is y = -2/3x + 1

I'll give brainlyest hel

Answers

Answer:

66 m^2

Step-by-step explanation:

6*11=66

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