Samuel needs 2 boards to make a shelf. One board is 84 centimeters long

and the other is 45 centimeters long.

What is the total length of the shelf?

centimeters

What would your answer be in millimeters?

millimeters

Answers

Answer 1

Answer:

The length of the shelf is 129 cm or 1290 mm.

Step-by-step explanation:

Since Samuel will use the two boards to make the shelf, then the total length of the shelf is the sum of the lengths of each board. So in order to solve this problem we must do as shown bellow:

length shelf = length board1 + length board2

length shelf = 84 + 45 = 129 cm

In order to convert this to milimeters we must multiply the answer above by 10. So we have:

length shelf = 129*10 = 1290 mm

The length of the shelf is 129 cm or 1290 mm.

Answer 2

Answer: 129 cm = 1290 mm

Step-by-step explanation:

Hi, to answer this question we simply have to add the length of both boards.

Mathematically speaking:

Total length = 84 cm + 45 cm = 129 centimiters

Since:

1 cm = 10mm

To convert 129 cm to mm we have to multiply it by 10.

129 cm x 10 mm/cm =1290 mm

Feel free to ask for more if needed or if you did not understand something.


Related Questions

A restaurant offers 10 appetizers and 12 main courses. In how many ways can a person order a​ two-course meal? Use the Fundamental Counting Principle with two groups of items.

Answers

Answer:

80 ways

Step-by-step explanation:

The first thing is to apply the Fundamental Counting Principle with two groups of items, in this case the multiplication rule is used.

In this case, what we should do is that, for every 1 main course there are 8 appetizers, but there are 10 main courses therefore:

8 * 10 = 80

There are 80 ways to combine appetizers and the main course

Final answer:

A person can order from a restaurant 120 different two-course meals using the Fundamental Counting Principle, as there are 10 appetizers and 12 main courses to choose from.

Explanation:

The question is asking how many different two-course meals can be ordered if a restaurant offers 10 appetizers and 12 main courses. According to the Fundamental Counting Principle, if there are separate events and the first event can occur in 'm' ways and the second in 'n' ways, then the events together can occur in a total of m x n ways.

Using this principle:

Number of ways to select an appetizer = 10

Number of ways to select a main course = 12

Therefore, the total number of two-course meal combinations = 10 appetizers x 12 main courses = 120 combinations

So, a person can order 120 different two-course meals from this restaurant.

Neep help ASAP!!! PLEASE HELP!!

Answers

Answer:

Cardinals, Bulldogs, then Tornado

Step-by-step explanation:

What is the mAngle3?


mAngle3 =

°

Answers

An exterior angle is the sum of the two opposite inside angles:

Angle 3 = 50 + 55 = 105 degrees.

Answer:105

Step-by-step explanation:

EDGE 2020 Its correct

You are preparing small and large cupcakes for the school bake sale. If you will need 1/3 a spoon of sugar for each small cupcake, and 1/2 a spoon of sugar for the large cupcake.if you need to make 30 small cupcakes and 20 large cupcakes, and you have a total of 21 spoons of sugar. Is this enough to make your cupcakes?

Answers

Answer:

yes

Step-by-step explanation:

1/3x30 is 10 which would be 10 spoons

1/2x20 is also 10 which would be another 10 spoons

10+10 equals 20

you have 21 spoons which means that you will have enough spoons of sugar to make all 50 cupcakes

Answer:

Yes as the small cupcakes would need 10 spoons (=1/3 of 30) where the large cupcakes would need 10 spoons of sugar (=1/2 of 20).

Step-by-step explanation:

30 x 1/3 = 10

30 x 1/2 = 10

10+10 =20

= 20 spoons of sugar makes 10 of each size cupcakes, so 21 spoons mentioned in the question would be enough.

Help ASAP please the right answer

Answers

Answer:

F

Step-by-step explanation:

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┻━┻ ︵ ヽ(°□°ヽ) ᶠᴸᴵᴾ ᵀᴴᴵˢ ᵀᴬᴮᴸᴱ.

┻━┻ ︵ \(`0`)// ︵ ┻━┻ ᶠᴸᴵᴾ ᴬᴸᴸ ᵀᴴᴱ ᵀᴬᴮᴸᴱˢ

ಠ_ಠ ᶜᴴᴵᴸᴰ. . .

ಠ_ಠ ᴾᵁᵀ.

ಠ__ಠ ᵀᴴᴱ ᵀᴬᴮᴸᴱˢ.

ಠ___ಠ ᴮᴬᶜᴷ.

(╮°-°)╮┳━┳

(╯°□°)╯︵ ┻━┻ ᴺᴱᵛᴱᴿ

(•_•)

<) )╯ᴮᴱᶜᴬᵁˢᴱ ᴵ'ᴹ

/ \

⊂_ヽ

 \\ _

  \( •_•) ᶠ

   < ⌒ヽ ᴬ

  /   へ\ ᴮ

  /  / \\ ᵁ

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What is the range of y=log2(x-6)

Answers

Answer:

All Real Numbers

Step-by-step explanation:

edg answer D

This is the correct answer.

Answer:

All Real Numbers

Step-by-step explanation:

Joylin must stack 3 blocks identical to the one shown below.
8 in
What strategy for stacking the blocks will produce a stack with the least surface area?
Create a stack where the 5-inch-by-6-inch faces of the blocks touch.
Create a stack where the 5-inch-by-8-inch faces of the blocks touch.
Create a stack where the 6-inch-by-8-inch faces of the blocks touch,
Create a stack where two different-sized faces of the blocks touch.

Answers

Answer:

the answer is c

Step-by-step explanation:

Create a stack where the 6-inch-by-8-inch faces of the blocks touch is the correct  strategy for stacking the blocks

What is Three dimensional shape?

a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.

The block has the following dimensions:

( L x w x h ) = ( 8 x 5 x 6 ) in

We will determine the surface area of each unique face of the block given in the attachment.

Surface area of the face ( 8 x 5 ):

Area = ( 8 )×( 5 )

Area = 40 in²

Surface area of the face ( 8 x 6 ):

Area = ( 8 )×( 6 )

Area = 48 in²

Surface area of the face ( 6 x 5 ):

Area = ( 5 )×( 6 )

Area = 30 in²

Hence, Create a stack where the 6-inch-by-8-inch faces of the blocks touch is the correct  strategy for stacking the blocks

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Explain how to model the problem with algebra tiles and
then write an algebraic expression that represents the
situation
Ruby gave away one of her puppies.

Answers

Answer:

The variable, the number of puppies, is modeled by an orange x tile. Giving away 1 puppy is modeled by 1 blue – tile. The expression that represents the situation is x – 1.

Step-by-step explanation: its a simple response

Answer:

Sample Response: The variable, the number of puppies, is modeled by an orange x tile. Giving away 1 puppy is modeled by 1 blue – tile. The expression that represents the situation is x – 1.

Step-by-step explanation:

say thank you please!!!!!!

Can someone plz help with this plzzzzz

Answers

Answer:

We have a 30°-60°-90° triangle.

m = 20, n = 10

The correct answer is D.

Consider the figure below. What is the perimeter of the figure?

Answers

Answer:

Not an answer but this is the figure to anyone who's nice enough to help :)

Step-by-step explanation:

Can you please help me I will give you brainliest

Answers

Answer:

b, sinks

c, more dense

e, holds less water vapor

Step-by-step explanation:

hope this helps!!

Answer:

i need branliest

sinks

is more dense than warm air

holds less water vapor than warm air

Step-by-step explanation:

cold air is more dense so it is heavier so it sinks

water vapor is lighter than air, so cold has less of it

solve each equation for 0≤x≤360
cos(x+45°)+cos(x-45°)= √2

Answers

Answer:

360°

Step-by-step explanation:

We want to solve the equation,

[tex] \cos(x + 45) + \cos(x - 45) = \sqrt{2} [/tex]

We expand using trigonometric identities to get;

[tex]\cos(x) \cos( 45) - \sin(x) \sin(45) + \cos(x) \cos( 45) + \sin(x) \sin(45) = \sqrt{2} [/tex]

[tex] \frac{ \sqrt{2} }{2} \cos(x) - \frac{ \sqrt{2} }{2} \sin(x) + \frac{ \sqrt{2} }{2} \cos(x) + \frac{ \sqrt{2} }{2} \sin(x) = \sqrt{2} [/tex]

Simplify;

[tex] \cos(x) - \sin(x) + \cos(x) + \sin(x) = 2[/tex]

Simplify;

[tex]\cos(x) + \cos(x) = 2[/tex]

Add

[tex]2\cos(x) = 2[/tex]

Divide by 2

[tex]\cos(x) = 1[/tex]

Take cosine inverse;

In the

[tex]x = \cos^{ - 1} ( 1) =0\degree [/tex]

Also in the 3rd quadrant cosine ratio is positive.

[tex]x = 360-0= 360 \degree[/tex]

Three angles of a triangle are cut off and lined up on the
line below.
Which statements describe the relationship of the
angles in the triangle? Check all that apply.
The sum of the three angles is 90°.
The sum of the angles in the triangle is 180°.
The three angles are adjacent and form a straight
angle.
The third angle is 45°.
There is a pair of congruent angles.

Answers

Answer:

The sum of the angles in the triangle is 180°.

The three angles are adjacent and form a straight

The third angle is 45°.

There is a pair of congruent angles.

Step-by-step explanation:

The diagram is missing but we can dwell on the limited information to answer.

We know angles in a triangle add up to 180°.

Therefore when we cut all these angles and arranged them on a straight line, their sum should be 180°.

Since the three angles are on a straight line they are adjacent.

Since the diagram is missing, these are the truth statement we have for now.

Answer:

The sum of the angles in the triangle is 180°.

The three angles are adjacent and form a straight angle.

The third angle is 45°.

There is a pair of congruent angles.

Step-by-step explanation:

Sorry is late I just took the assignment

Andre is preparing for the school play and needs to paint the rectangular cardboard castle backdrop that measures LaTeX: 14\frac{1}{4}14 1 4feet by 6 feet. If one bottle of paint covers an area of 40 square feet, how many bottles of paint does Andre need for his backdrop? Enter your numerical answer with no label.
Group of answer choices

Answers

Answer:

2.1375 bottles of paint

Step-by-step explanation:

cardboard length = 14 1/4 ft, which is equivalent to (4*14 + 1)/4 = 57/4 ft

cardboard width = 6 ft

Rectangular cardboard area = length * width = 57/4 * 6 = (57*6)/4 = 342/4 ft²,  which can be simplified dividing numerator and denominator by 2: 171/2 ft²

If 1 bottle of paint covers an area of 40 square feet, then to paint 171/2 square feet the following proportion must be satisfied:

1  bottle of paint / 40 square feet = x bottles of paint / (171/2) square feet

x = (1/40) * (171/2) = (1*171)/(40*2) = 171/80 or (160 + 11)/80 = 160/80 + 11/80 = 2 11/80 or 2.1375 bottles of paint

What is 65 cm in a fraction

Answers

Answer:

65/100

Step-by-step explanation:

help my question plz

Step-by-step explanation:

[tex]65 \: cm = \frac{65}{100} \: m = \frac{13}{20} \: m \\ [/tex]

Pls need help ASAP! (easy geometry)

Answers

Answer:

plz give branliest

A

C

E

Are correct

Step-by-step explanation:

so if they are diagonals,

Find the area(ignore the line if you want)

Answers

Given:

Image of the figure

To find:

The area of the figure.

Solution:

The image is splitted into two shapes.

One is rectangle and the other is trapezium.

Reference image for answer is attached below.

Rectangle:

Length = 10 cm

Width = 2.8 cm

Area = length × width

        = 10 × 2.8

Area = 28 cm²

Trapezium:

Top base = 6 cm

Bottom base = 10 cm

Height = 7.2 - 2.8 = 4.4 cm

Area = [tex]\frac{1}{2} \times\left(b_{1}+b_{2}\right) \times h[/tex]

        [tex]$=\frac{1}{2} \times(6+10) \times 4.4[/tex]

        [tex]$=\frac{1}{2} \times 16 \times 4.4[/tex]

Area = 35.2 cm²

Area of the figure = 28 cm² + 35.2 cm²

                             = 63.2 cm²

The area of the figure is 63.2 cm².

The graph of y=x3 is transformed as shown in the graph below. Which equation represents the transformed function

Answers

Answer:

y= -6x^3

Step-by-step explanation:

Look at the points on the graph and plug into the equations

when x = -1, y must equal 6

(-1)^3 = -1

(-1) x (-6) = 6

y= -6x^3, equation represents the transformed function.

What is equation?

An equation is a  mathematical statement that is made up of two expressions connected by an equal sign.

Here, we have,

Look at the points on the graph and plug into the equations

when x = -1, y must equal 6

(-1)^3 = -1

(-1) x (-6) = 6

Hence, y= -6x^3, equation represents the transformed function.

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Help with any please !! And explain

Answers

Answer:

number 7 is D i believe

Step-by-step explanation:

7. D 8. D 9. (3,6) 10. (5,5) and (3,8).

The circumference of the moon is about 6,790 miles Find the diameter of the moon to the nearest mile. help somebody

Answers

Answer:

2162 miles

Step-by-step explanation:

The equation of the circumference of a circle is d*pi = Circumference. Knowing this, We can do a one step equation and divide be pi on both sides to find the diameter. All you have to do is plug the numbers in and divide 6790 by 3.14 to find 2162. (Rounded to the nearest mile)

Final answer:

To find the diameter of the moon, use the formula for circumference. Given the circumference of the moon, substitute the value into the formula to find the radius. Multiply the radius by 2 to find the diameter. Round the result to the nearest mile.

Explanation:

To find the diameter of the moon, we can use the formula for circumference: Circumference = 2πr, where r is the radius. Given that the circumference of the moon is about 6,790 miles, we can rearrange the formula to solve for the diameter. Since diameter is twice the radius, we have Diameter = 2r. Substitute the given circumference value into the formula to find the radius. Then multiply the radius by 2 to find the diameter. Round the result to the nearest mile.

Step 1: Circumference = 2πr

Step 2: Given circumference = 6,790 miles

Step 3: Solve for r: 6,790 miles = 2πr

Step 4: Divide both sides of the equation by 2π: r ≈ 1,080 miles

Step 5: Multiply r by 2 to find the diameter: Diameter ≈ 2 * 1,080 miles ≈ 2,160 miles

Therefore, the diameter of the moon, rounded to the nearest mile, is approximately 2,160 miles.

What is the slope of (-4,-2) and (-3,5)

Answers

Answer:

m=7

Step-by-step explanation:

m=5-(-2)/-3-(-4)

m=7/1

m=7

Answer:

The slope of the two points would be 7

Step-by-step explanation:

Fred lives on the 16th floor.
The elevator goes up one floor for each 10 seconds.
It stops at the fifth floor for 1 minute for people to get out.
How long does it take for Fred to get to the 16th floor?
Explain how you figure this out.

Answers

Answer:

16 x 10

160 seconds - 2 min 40 sec

2 min 40 sec + 1 min

3 min 40 sec

Step-by-step explanation:

It takes 3:40. By the time it is at the fifth floor it has already taken 1:50 seconds including the minute wait. At the 6th floor it is at 2 minutes. When it is at the twelfth floor it has been 3 minutes. And when it gets to the 16th floor it has been 3 minutes and 40 seconds (3:40)

1. 4x² – 25
What is the answer to the equation

Answers

Answer:

-23.04 i think

Step-by-step explanation:

What is 2(2x + 1) = x + 5?

Answers

Answer:

1

Step-by-step explanation:

2(2x+1)=x+5

4x+2=x+5

3x=3

x=1

Answer:

x=1

Step-by-step explanation:

2(2x + 1) = x + 5

Distribute

4x +2 = x+5

subtract 4 from each side

4x-x +2 = x-x+5

3x +2 = 5

Subtract 2 from each side

3x+2-2 = 5-2

3x = 3

Divide by 3

3x/3 = 3/3

x=1

Do you go for a run on Monday. You run 1. 23 km. On Tuesday you run the same distance. how far did you run all together?

Answers

add it together and find the answer

Answer:

Step-by-step explanation:

I'm not sure if this is right, but if your run the same amount I would multiply 1.23×2 which then equals 2.46.

Help me I need the steps

Answers

It's a quadratic with a positive x² coefficient, so a CUP, with a minimum

f(x) = 2x² -12 x + 13

= 2(x² - 6x) + 13

= 2(x - 3)² - 2(9) + 13

f(x) = 2(x - 3)² - 5

Since x-3 is always zero or positive the least value is

f(3) = -5

Answer: -5

Property of Circles: Segment Relationships in Circles

Answers

Answer:

x = 5

Step-by-step explanation:

Two secants from an external point to a circle, then the product of one secant's external part and the entire secant is equal to the product of the external part and the entire secant of the other, that is

(x - 2)(x - 2 + x + 4) = 4(4 + 5)

(x - 2)(2x + 2) = 4(9) = 36 ← distribute and simplify the left side

2x² + 2x - 4x - 4 = 36

2x² - 2x - 4 = 36 ( subtract 36 from both sides )

2x² - 2x - 40 = 0 ( divide through by 2 )

x² - x - 20 = 0 ← in standard form

(x - 5)(x + 4) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 5 = 0 ⇒ x = 5

x + 4 = 0 ⇒ x = - 4

But x > 0 ⇒ x = 5

Answer: x=5

Step-by-step explanation:

A scientist calculated the mean and standard deviation of a data set to be Mu = 120 and Sigma = 9. She then found that she was missing one data value from the set. She knows that the missing data value was exactly 3 standard deviations away from the mean. What was the missing data value?

Answers

Answer:

The missing data value is 147

Step-by-step explanation:

The mean is 120

The standard deviation is 9

Missing data value = ?

From the question, the missing data value is 3 standard deviation away from the mean.

3 standard deviation = 3 * 9 = 27

3 standard deviation from the mean = 120 + 27 = 147

The missing data value is what we get after adding 3 standard deviation from the mean.

Away here means ahead which is sum.

Answer:

b on edg

Step-by-step explanation:

Find the volume of a right circular cone that has a height of 15.8 in and a base with a
diameter of 12.7 in. Round your answer to the nearest tenth of a cubic inch.

Answers

I think the answer is 667.2

The right circular cone will have a volume of 667.4 cubic inches.

What is volume?

A volume is simply defined as the amount of space occupied by any three-dimensional solid. These solids can be a cube, a cuboid, a cone, a cylinder or a sphere. Volume of a solid is measured in cubic units.

As per the given data:

height of the cone ([tex]h[/tex]) = 15.8 inch

diameter of the base ([tex]d[/tex]) = 12.7 inch

volume of a right circular cone = [tex]\frac13\pi r^2h[/tex]

Where radius ([tex]r[/tex]) = [tex]\frac{d}{2}[/tex] = [tex]\frac{12.7}{2}[/tex] = [tex]6.35[/tex]

volume =  [tex]\frac13\times\pi\times (6.35)^2\times15.8[/tex]

=  [tex]\frac13\times\frac{22}{7}\times (6.35)^2\times15.8[/tex]

= 667.4 cubic inches

The volume of the right circular cone will be 667.4 cubic inches.

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Suppose 1/4 of people surveyed support changing the school dress code to enforce uniforms. How many people would you have to select randomly, on average, in order to get 20 people who support the new dress code?

Answers

Answer:

I'd say around eighty people. Hope that helps.

Step-by-step explanation:

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