The radius of a semicircle is 5 centimetres. What is the semicircle's diameter?

Answers

Answer 1

The diameter [tex]d = 2r[/tex], where [tex]r[/tex] is the radius. Thus, [tex]d = 2 \times r = 2 \times 5 = 10cm[/tex]


Related Questions

Question 1 of 10
Evaluate the following expression. Round your answer to two decimal places.
log79
A. 0.89

Answers

Step-by-step explanation:

log(79) = 1.897627091... ≈ 1.90

can someone help me with this worksheet please!!!!

Answers

(1) The missing term in the sequence, a₁₂  = 0.8.

(2) The missing term in the sequence, a₈ = 102.5.

(3) The missing term in the sequence, a₈ = 111.

(4) The missing term in the sequence, a₁₂ = -19.

(5) The missing term in the sequence, a₁₂ = 94.

(6)  The missing term in the sequence, a₆ = 40.

(7)  The missing term in the sequence, a₃₆ = -52.

(8)  The missing term in the sequence, a₂₁ = -58.

Missing term of the sequence

The missing term in the sequence is determined as follows;

Tₙ = a + (n - 1)d

1.0 a₄ = 18.4 and a₅ = 16.2, a₁₂ = ?

T₄ = a + 3d

18.4 = a + 3d  ---(1)

T₅ = a + 4d

16.2 = a + 4d  ---(2)

subtract (1) from (2)

-2.2 = d

18.4 = a + 3(-2.2)

a = 25

a₁₂  = a + 11d

a₁₂  = 25 + 11(-2.2)

a₁₂  = 0.8

2.0 a₂ = 57.5 and a₅ = 80, a₈ = ?

a₂ = a + d

57.5 = a + d -- (1)

a₅ = a + 4d

80 = a + 4d  --- (2)

solve (1) and (2)

d = 7.5

a = 50

a₈ =  a + 7d

a₈ = 50 + 7(7.5)

a₈ = 102.5

3.0 a₁₀ = 141 and a₁₃ = 186, a₈ = ?

a₁₀ = a + 9d

141 = a + 9d --- (1)

a₁₃ = a + 12d

186 = a + 12d --- (2)

Subtract (1) from (2)

d = 15

a = 6

a₈ = a + 7d

a₈ = 6 + 7(15)

a₈ = 111

4.0 a₂₂ = -49 and a₂₅ = -58, a₁₂ = ?

a₂₂ = a + 21d

-49 = a + 21d ---- (1)

a₂₅ = a + 24d

-58 = a + 24d --- (2)

subtract (1) from (2)

d = -3

a = 14

a₁₂ = a + 11d

a₁₂ = 14 + 11(-3)

a₁₂ = -19

5.0 a₄ = -2 and a₈ = 46, a₁₂ = ?

a₄ = a + 3d

-2 = a + 3d --- (1)

a₈ = a + 7d

46 = a + 7d ---- (2)

Subtract (1) from (2)

d = 12

a = -38

a₁₂ = a + 11d

a₁₂ = -38 + 11(12)

a₁₂ = 94

6.0 a₉ = 64 and a₁₂ = 88, a₆ = ?

a₉ = a + 8d

64 = a + 8d --- (1)

a₁₂ = a + 11d

88 = a + 11d --- (2)

Subtract (1) from (2)

d = 8

a = 0

a₆ = a + 5d

a₆ = 0 + 5(8)

a₆ = 40

7.0 a₂₀ = -4 and a₂₃ = -13, a₃₆ = ?

a₂₀ = a + 19d

-4 = a + 19d ---- (1)

a₂₃ = a + 22d

-13 = a + 22d --- (2)

Subtract (1) from (2)

d = -3

a = 53

a₃₆ = a + 35d

a₃₆ = 53 + 35(-3)

a₃₆ = -52

8.0 a₂₈ = 5 and a₃₃ = 50, a₂₁ = ?

a₂₈ = a + 27d

5 = a + 27d ---- (1)

a₃₃ = a + 32d

50 = a + 32d --- (2)

Subtract (1) from (2)

d = 9

a = -238

a₂₁ = a + 20d

a₂₁ = -238 + 20(9)

a₂₁ = -58

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is there anyone who understands this?

Answers

Answer:

The question was most likely asking for exponential form.(The list shows questions 16 through 20, not 1 through 5.)

b 1/6X Z/49 3/2m p/nj 2 + x/2

The 7 in which number represents a value of 0.7

*903038393JKLSi933003

9=28
when 834 nine=365 and 7

Answers

Answer:

THE ANSWER IS C

Step-by-step explanation:

just add it it and find it 0.007

Answer:

THe answer Is C

Step-by-step explanation:

because 0.007 is the same as 365 its something were learning in class

In which triangle is the value of x equal to cos−1(StartFraction 4.3 Over 6.7 EndFraction)?

(Images may not be drawn to scale.)

A right triangle is shown. The length of the hypotenuse is 6.7 and the length of another side is 4.3. The angle between the 2 sides is x.
A right triangle is shown. The length of the hypotenuse is 6.7 and the length of another side is 4.3. The angle opposite to side with length 4.3 is x.
A right triangle is shown. The length of the hypotenuse is 4.3 and the length of another side is 6.7. The angle between 2 sides is x.
A right triangle is shown. The length of the 2 sides are 6.7 and 4.3. The angle opposite to side with length 4.3 is x.

Answers

The correct answer is option A. which is the right triangle shown. The length of the hypotenuse is 6.7 and the length of another side is 4.3. The angle between the 2 sides is x.

The complete figure is attached with the answer below.

What is trigonometry?

The branch of mathematics sets up a relationship between the sides and the angles of the right-angle triangle is termed trigonometry.

In the given figure of option A, we can see that the hypotenuse is 6.7 and the base is 4.3 and the angle between both the sides is x. Now we will calculate the angle of cosine x.

Cos(x)= Base / Hypotenuse

Cos(x) = ( 4.3 / 6.7 )

(x) = Cos⁻¹ ( 4.3 / 6.7)

Therefore the correct answer is option A. which is the right triangle shown. The length of the hypotenuse is 6.7 and the length of another side is 4.3. The angle between the 2 sides is x.

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Answer:

The answer is A

Step-by-step explanation:

Just took the test

Rewrite using the Distributive Property and GCF 13+36

Answers

Answer:

Step-by-step explanation:

13 and 36 have no common factor except 1.

Perhaps you meant that the 13 should be 12. In that case

GCF

12 = 2*2*336 = 2*2 *3 * 3

The greatest common factor is 2 * 2 * 3

If there is a number that is not bolded, it is what is left behind inside the backets the distributive property creates.

Answer: 12(1 + 3)

Note: the 1 is part of the answer inside the brackets when one of the numbers inside the brackets and the GCF are the same

Solve the following inequality algebraically:
-2 less-than x/3 + 1 less than 5
a.
Negative 9 greater-than x greater-than 12
b.
Negative 9 less-than x less-than 12
c.
Negative 2 less-than x less-than 5
d.
Negative 2 greater-than x greater-than 5

Answers

Answer:

d

Step-by-step explanation:

What is 5 over 8 expressed as a percent?

Answers

Answer: 62.5%

Step-by-step explanation:

5/8 = 0.625

0.625 x 100 = 62.5

answer asap giving max points and brainliest A projectile is launched at an angle of 30° and travels a distance of 400 meters. Gravitational acceleration equals 9.8 m/sec2 calculate the initial velocity.
answer choices:
67
87
57

Answers

Answer:

67 m/s

Step-by-step explanation:

Formula for range :

Range = u²sin2θ / gu = initial velocityθ = angle of launchg = gravitational acceleration

Solving with the given values :

400 = u² x sin60° / 9.8u² x √3/2 = 3920u² = 7840/√3u² = 4526.4u = 67 m/s (approximately)

Answer:

[tex]\sf u=67\:ms^{-1}[/tex]

Step-by-step explanation:

Assuming the distance traveled is the horizontal distance.

Horizontal Range Formula

[tex]\sf R=\dfrac{u^2 \sin 2\theta}{g}[/tex]

where:

R = horizontal rangeu = initial velocity[tex]\theta[/tex] = angle of initial velocityg = acceleration due to gravity

Given:

R = 400 m[tex]\theta[/tex] = 30°g = 9.8 m/s²

Substituting the given values into the formula and solving for u:

[tex]\implies \sf 400=\dfrac{u^2 \sin 60^{\circ}}{9.8}[/tex]

[tex]\implies \sf 3920=u^2 \sin 60^{\circ}[/tex]

[tex]\implies \sf 3920=\left(\dfrac{\sqrt{3}}{2}\right)u^2[/tex]

[tex]\implies \sf u^2=\dfrac{7840}{\sqrt{3}}[/tex]

[tex]\implies \sf u=\sqrt{\left(\dfrac{7840}{\sqrt{3}} \right) }[/tex]

[tex]\implies \sf u=67.2787196...[/tex]

[tex]\implies \sf u=67\:ms^{-1}\:(nearest\:whole\:number)[/tex]

The following diagram shows a 4-step process that begins with Operation 1 and ends with Operation 4.

Answers

Based on the operations and their times, the capacity of this process is 10 per hour and the action that would yield the greatest increase would be 2. increase operation 2 by 14%.

What is the capacity of the process?

The capacity of the process is the least operation time in the process which is 10/ hr.

How can we get the greatest increase in process capacity?

Check all the alternatives given. The alternative with the lowest capacity is best.

Increase operation 1 by 12%:

= 11 x (1 + 12%)

= 12.32 per hour

Increase operation 2 by 14%:

= 10 x (1 + 14%)

= 11.4 per hour

Increase operation 3 by 10%:

= 12 x (1 + 10%)

= 13.2 per hour

The best alternative is therefore to increase operation 2 by 14%.

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solve this quadratic inequalitie with detailed full explanation
X2≤16
x square less than or equal to 16

Answers

[tex]x^2\leq16\\x\leq 4 \wedge x\geq -4\\x\in\langle-4,4\rangle[/tex]

different approach:

[tex]x^2\leq16\\x^2-16\leq0\\(x-4)(x+4)\leq0[/tex]

see attachment

[tex]x\in\langle-4,4\rangle[/tex]

[tex]~~~~~~x^2 \leq 16\\\\\implies -\sqrt{16} \leq x\leq \sqrt{16}\\\\\implies -4\leq x \leq 4\\\\\text{Interval notation:}~ [-4,4][/tex]

Which of the following is the correct factorization of the polynomial below?
p³ -343q³
A. (p-49q) (p² +7pq+49q²)
B. (p-7q) (p² +7pq+49q²)
C. (p² +7q) (p³ +49pq+7q²)
D. The polynomial is irreducible.

Answers

Answer:

B

Step-by-step explanation:

a difference of cubes factors in general as

a³ - b³ = (a - b)(a² + ab + b²)

given

p³ - 343q³

= p³ - (7q)³ ← a difference of cubes , then

= (p - 7q)(p² + 7pq + 49q²) ← in factored form

what's the answer to this

Answers

Step-by-step explanation:

the angle CDB is the supplementary angle to 9x+10 (angle ADC).

that means they stand together for 180°. as all angles around a single point on one side of a line are together always 180°.

and then, the sum of all angles in a triangle is always 180°.

so,

CDB + (4x + 10) + 50 = 180

CDB = 180 - (9x + 10) = 180 - 9x - 19 = 170 - 9x

therefore,

(170 - 9x) + (4x + 10) + 50 = 180

170 - 9x + 4x + 10 + 50 = 180

-5x = -50

5x = 50

x = 10

angle CDB = 170 - 9x = 170 - 90 = 80°

Which number has the greatest value?
O 0.095
1.24
O 1.215
245

Answers

The number that has the greatest value is 245

How to determine the greatest number?

The numbers are given as:

0.095, 1.24, 1.215 and 245

Rearrange the numbers in ascending order

0.095, 1.215, 1.24 and 245

The last number on the list is the greatest

Hence, the number that has the greatest value is 245

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What is the product of the polynomials below? (3x^3+9x)(x^2-2)

Answers

Answer:

= 3x⁵ + 3x³ - 18x

Step-by-step explanation:

(3x³ + 9x)(x²-2)

= 3x³ * x² + 3x³ * -2 + 9x * x² + 9x * -2

= 3x⁵ - 6x³ + 9x³ - 18x

= 3x⁵ + 3x³ - 18x

The chart below lists the original and sale prices of items at a clothing store.
Which statement best describes why the sale price is a function of the original price?

A. As the original price increases, the sale price also increases.

B.The sale price is always less than the original price.

C.For every original price, there is exactly one sale price.

D. The sales price is never less than zero.

Answers

Answer:

I think Option C is the correct answer

I think it will help you.

Please answer this question

Answers

Answer:

Step-by-step explanation:

Cooper just started a running plan where he runs 8 miles the first week and then
increases the number of miles he runs by 5% each week. If he keeps up this plan for
21 weeks, how many total miles would Cooper have run, to the nearest whole
number?

Answers

He would’ve ran 286 miles in total.

Cooper ran 286 miles in 21 weeks.

Elaina Kicks A Soccer Ball With An Initial Velocity Of

Answers

By using the motion equations, we conclude that she will make the goal.

Will she make the goal?

First, we know that the goal is 20ft away, and the position in x is given by:

[tex]x = 28*cos(58)*t[/tex]

Let's find the time in which the ball will travel these 20 ft.

[tex]20 = 28*cos(58)*t[/tex]

[tex](20)/(28*cos(58)) = t = 1.35[/tex]

So the horizontal distance is covered in 1.35 seconds, now let's see which is the height of the ball at that time.

The height equation is:

[tex]y = -16*t^2 +28*sin(58)*t[/tex]

Evaluating in t = 1.35 we get:

[tex]y = -16*(1.35)^2 +28*sin(58)*1.35\\\\y = 2.9[/tex]

And the goal is 5ft tall, so we can conclude that she will make the goal.

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Rectangle ABCD has has vertices A(1,1), B (1,5), C(5,5) and D (5,1). Graph the rectangle and its translation (2,1). Then write the new vertices for both.

Answers

The rectangle and the translated rectangle have been plot and the image is attached.

What is  a Rectangle ?

A rectangle is a polygon with four sides , opposites sides of the polygon are equal and parallel.

To draw a Rectangle having vertices A(1,1), B (1,5), C(5,5) and D (5,1).

and a rectangle with translation (2,1)

After translation the new points are

A(3,2) ,B (3,6) , C(7,6) , D(7,2)

The rectangle and the translated rectangle have been plot and the image is attached.

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HELP PLS! A kiddie pool is 9 feet long and 6 feet wide. Surrounding wach side of the kiddie pool is a cement walkway of uniform width. The combined area of the pool and walk way is 108 ft^2. Find the width of the walkway. Ill give brainliest too

Answers

I will answer this will within a few minutes

Convert 0.00001 to a power of 10

Answers

Answer:

10^(-5)

Step-by-step explanation:

1 x 10^(-5)

I hope it helps u dear! ^_^

A mathematics teacher wanted to see the correlation between test scores and homework. The homework grade (x) and test grade (y) are given in the accompanying table. Write the linear regression equation that represents this set of data, rounding all coefficients to the nearest tenth. Using this equation, find the projected test grade, to the nearest integer, for a student with a homework grade of 72.

Answers

There was a missing data point in the Homework Grade.  So I put a 74 to get 8 data points on each variable.

Put these data points in Excel.  In the Data Analysis tab, scroll down and click on Regression.  Input Y range for Test Grade and Input X range for Homework Grade.

y = -0.4x + 98.3

What is the correlation?

correlation or dependence is any statistical relationship, whether causal or not, between two random variables or bivariate data.

When you increase your homework score by 1 point, you lose 0.4 points on your test.

-0.4x + 98.3 = 74

→  -0.4x = -24.3  

→  x = 60.75 ≈ 61

A student will earn a 61 on his/her homework if he/she earns a 74 on an exam.

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#18 please I’m not good at math at all

Answers

Answer:

The answer is in the picture.

Step-by-step explanation:

By hand, you can factor it. I did it on a website called Cymath.

Answer:

3x(y - 3)(y + 1)

Step-by-step explanation:

Factor 3x out of 3xy^2

Factor 3x out of -6xy

Factor 3x out of -9x

Factor 3x out of 3x(y^2)+3x(-2y)

Factor 3x out of 3x(y^2-2y) + 3x(-3)

A company that produces and sells ceramic tiles for $41.78 per square foot has fixed weekly expenses of $7,210 and variable expenses of $14.79 for each square foot of tile. Determine the company's ROI if they are able to sell 1,265 square feet of tile per week. Round the final answer to the nearest hundredth. Show your work.​

Answers

Answer:

103.9

Step-by-step explanation:

yes

follow the steps to construct a diagram:
1:create points A, B, and C in order on a horizontal line with a distance of four units between successive points.
2:draw Circle with center that passes through b, and two tangents to the circle passing through C.
3:locate the points of intersection of the tangents with the circle, and labeled them D and E.
4: draw the radii AD and AE to create central angel EAD.
Take a screenshot of your construction, and paste it below.

Answers

Answer:

a=3=8

Step-by-step explanation:

there is none

The construction forms a diagram consisting of a circle, two tangents, and a central angle EAD as shown in the attached figure.

Construction is a topic that requires drawing a required shape, line, and figure with constructing tools. The appropriate steps should be taken so as to complete the required figure.

In the given question, the circumference of the required circle passes through points A and C. And the radius of the circle with center B is 4 units so its diameter is 8 units. Then joining the points D and E to A, creates a central angle EAD.

Following the appropriate steps, the required diagram for the construction is as given in the attachment to this question.

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The 7 in which number represents a value of 0.7
*903038393JKLSi933003

9=28
when 834 nine=365 and 7The 7 in which number represents a value of 0.7
*903038393JKLSi933003

9=28
when 834 nine=365 and 7The 7 in which number represents a value of 0.7
*903038393JKLSi933003

9=28
when 834 nine=365 and 7The 7 in which number represents a value of 0.7
*903038393JKLSi933003

9=28
when 834 nine=365 and 7The 7 in which number represents a value of 0.7
*903038393JKLSi933003

9=28
when 834 nine=365 and 7The 7 in which number represents a value of 0.7
*903038393JKLSi933003

9=28
when 834 nine=365 and 7The 7 in which number represents a value of 0.7
*903038393JKLSi933003

9=28
when 834 nine=365 and 7

Answers

Answer:

The answer is C

Step-by-step explanation:

good job on quiz i got a 15/15 but keep up 3´5

Answer:

i got a 0/15 i didnt do it

Step-by-step explanation:

0000.7 C

What is the measure of each interior angle of a regular octagon?

45º
60º
120º
135º

Answers

Answer:

135 degrees

Step-by-step explanation:

Just took the test...

Answer:

135 degrees

Step-by-step explanation:

180 (n - 2)

180 (8 - 2)

180(6)

1080 divided by 8

135 is your answer.

how many prime number are between 2 and 22​

Answers

Answer:

8

Step-by-step explanation:

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 easily get rid of all the even numbers except 2 and then look at the numbers to see if they can be divisible by anything but 1 and its self. then you will get the answers 2, 3, 5, 7, 11, 13, 17, and 19

4 The angle of elevation of point P from point Q is 40°. PQ = 45 km. How high is point P above the level of point Q?​

Answers

Answer: [tex]45\sin 40^{\circ} \approx 28.925[/tex] km

Step-by-step explanation:

[tex]\sin 40^{\circ}=\frac{x}{45} \\ \\ x=45 \sin 40^{\circ} \approx 28.925[/tex]

The height of point P above the level of point Q is given by trigonometric relations h = 34.7 km

What are trigonometric relations?

Trigonometry is the study of the relationships between the angles and the lengths of the sides of triangles

The six trigonometric functions are sin , cos , tan , cosec , sec and cot

Let the angle be θ , such that

sin θ = opposite / hypotenuse

cos θ = adjacent / hypotenuse

tan θ = opposite / adjacent

tan θ = sin θ / cos θ

cosec θ = 1/sin θ

sec θ = 1/cos θ

cot θ = 1/tan θ

Given data ,

Let's call the height of point P above the level of point Q as h.

We know that the angle of elevation of point P from point Q is 40°, which means that the angle between the horizontal line passing through Q and the line segment connecting Q and P is 40°.

We also know that PQ = 45 km, which represents the distance between Q and P.

Using trigonometry, we can set up the following equation:

tan(40°) = h / 45

Solving for h, we get:

h = 45 x tan(40°) ≈ 34.7 km

Therefore, point P is approximately 34.7 km above the level of point Q

Hence , the height is h = 34.7 km

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