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-12 and 2

-12×2= -24

-12+2= -10

Answer:

Option (b) will be the correct answer.

Step-by-step explanation:

190×10⁸

1.9×10²×10⁸

1.9×10¹⁰

Answer:

B

Step-by-step explanation:

190 x 10^8 = 19000000000

1.9 x 10 ^10= 19000000000

The constant of proportionality (known as "speed" in this case) is 12.5 miles per hour.

The equation is  

d

=

12.5

×

t

Explanation:

To find the constant of proportionality, divide one value in each pair by the other. If this relationship is a true direct proportionality , when you repeat these for every pair, your will come up with the same value:

For example

25

miles

÷

2

hours

=

12.5

miles

hour

A direct proportionality will always result in an equation that resembles this:

y

=

k

x

where  

y

and  

x

are the related quantities and  

k

is the constant of proportionality. If you draw a graph using the values you have, the graph will show a straight line the passes through the origin. The slope of this line will be the constant of proportionality. (And if the values given are real physical quantities, this constant will contain important information about the situation you are studying!)

Answer:

52.36

Step-by-step explanation:

Formula to find volume in a cone is

V = pi • radius^2 h/3

So we fill in the numbers

V = pi •

the radius is half of diameter,

The diameter is 5

So it's

V = pi • 2.5

since it's half of 5

V = pi • 2.5^2 h/3

the height is 8 so we fill it in

V = pi • 2.5^2 8/3

When calculated, you get..

52.36

The volume of the liquid which can fill the bowl of the glass (in shape of cone) with the liquid is 49.74 cm³.

Volume of solid is the amount of quantity, which is obtained by the solid or object in the 3 dimensional space.

The volume of the cone can be given as,

[tex]V=\dfrac{1}{3}\pi r^2\sqrt{l^2-r^2}[/tex]

Here, (r) is the radius of the base of the cone and (l) is the slant height of the cone.

Here, the diameter of the cone is 5 cm. thus the radius of the cone is,

[tex]r=\dfrac{5}{2}\\r=2.5\rm cm[/tex]

The slant height of the cone is 8 cm. Thus, put the value to find the volume of cone as,

[tex]V=\dfrac{1}{3}\pi (2.5)^2\sqrt{(8)^2-(2.5)^2}\\V\cong 49.74\rm cm^3[/tex]

Thus the volume of the liquid which can fill the bowl of the glass (in shape of cone) with the liquid is 49.74 cm³.

Learn more about the volume of solid here;

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Answer:Decay

Step-by-step explanation: because of perenthesis

Answer: See explanation

Step-by-step explanation:

Sita bought a sofa set for Rs 30,000 and sold the sofa set at a loss of 5%. The loss on the sofa will be:

= 5% × 30000

= 5/100 × 30000

= 0.05 × 30000

= 1500

Selling price of the sofa = 30000 - 1500 = 28500

Sita bought a dining set for Rs 20,000 and made a profit of 5% on the dining set. The selling price of the dining set will be:

= 20000 + (5% × 20000)

= 20000 + (0.05 × 20000)

= 20000 + 1000

= 21000

The cost price of the sofa and dining set will be:

= Rs 20000 + Rs 30000

= Rs 50000

The selling price of the dining set will be:

= Rs 28500 + Rs 21000

= Rs 49500

The net result of the transaction is will be:

Selling price - Cost price

= 49500 - 50000

= -500

There's a net loss of $500

Answer:

The amount she makes from the sale of plain scones is £36

Step-by-step explanation:

The number of flavors of scones Steph makes =

The number of fruit scones she makes = 4 × The number of cheese scones she makes

The number of plain scones she makes = 3 × The number of cheese scones she makes

The price at which she sells the cheese scones = The price at which she sells the fruit scones

The price at which she sells the cheese scones = The price at which she sells the plain scones

The total amount she makes = £96

Let, 'x', represent the number of cheese scones she makes

Therefore, we have;

The number of fruit scones she makes = 4·x

The number of plain she makes = 3·x

∴ The total number of scones she makes = 4·x + 3·x + x = 8·x

The total number of scones she makes = 8·x

The total amount she makes from selling the 8·x scones she makes = £96

∴ 8·x = £96

x = £96/8 = £12

The amount she makes from the sale of 'x' number of scones = £12

The number of plain scones she makes = 3·x

From the sale of '3·x' number of plain scones, she makes = £12 × 3 = £36

Answer:

I understand you probably don't need this anymore but here is the answer anyway.

Step-by-step explanation:

So what you want to do is draw a line from a corner to the centre of enlargement (I'll use the one at (9, 10) ). Then you see that it take 2 boxes to get to that, keep the line going through for double as much as it took to reach the centre of enlargement, this is because the scale factor is two. Do this for every corner, going through the centre of enlargement for the double the length it took to get to it (plot a cross at each bit you end up). Finally, remove the lines you used and connect the crosses. This method may be a bit confusing and someone who understands it more than me would probably explain what the minus means, if I explain it will probably make this more confusing. Hope this Helps!

Answer:

graph W

Step-by-step explanation:

Answer:

=

7

±

3

7

√

2

Step-by-step explanation:

Answer:

=7±√37/2

Step-by-step explanation:

Answer:

They got their points wrong, and did the wrong quadrant.

Step-by-step explanation:

Answer:

i forget im sorry

Answer:

find the value of x

20

40

Step-by-step explanation:

Answer:

100* 100 = 10,000 100 divided 100 is 1

Step-by-step explanation:

Answer:

She answered 70% of the questions correctly.

Answer:j

Step-by-step explanation:

Answer:

Rachel would need 45cm of tape to wrap 15 presents.

Step-by-step explanation:

Firstly we need to find how much is required to wrap one presnt: 18÷6=3.3cm of tape is needed to wrap one present.

Secondly to find how many she needs to wrap 15 we sinply multiply 15 by three and get 45.

I hope this helps you in any way.

Answer:

blue =5/13. speckled=4/13

Answer:

48

Step-by-step explanation:

x+y=12

y=12-x

10y+x =10x+y +36

9y-9x=36

108-9x-9x=36

-18x=-72

x=4

y=8

Answer:

A bc it show that it travels 25 miles to the hour.

In other words Miles per hour= 25 to 1 hour

Step-by-step explanation:

Hope this helps :)

Answer:

rectangular pyramid

Step-by-step explanation:

Answer:

1) 4 × 4× 4 = 64

2) 6⁴ = 1296

3) 25 = 25

4) 5² = 2

3) 3⁴= 81

Answer c

Step-by-step explanation:

they have to be equivalent

Answer:

27

Step-by-step explanation:

19+x/2=23

19+x=46

x=27

or 19-23=4

23+4=27

The length of the other base of the trapezoid is 27 meters.

A trapezoid is a polygon with four sides, it has one pair of parallel sides.

The length of the base of a trapezoid is 19 meters.

The length of the median is 23 meters.

The median in a trapezoid is a line that is in the drawn in the mid way of the two non-adjacent sides.

The value of median is half of the bases added together.

Median = (1/2) ( Base₁ +  Base₂)

Substituting the values in the formula to obtain the value of the other base.

Let x be the length of the other base,

23 = (1/2) * ( 19 + x)

23 *2 = 19+x

46 = 19 +x

x = 27 meters

The length of the other base is 27 meters.

To know more about Trapezoid

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Answer:

21

Step-by-step explanation:

3+(a+4)(8-b)

3+(5+4)(8-6)

3+(9)(2)

3+18

21

Answer:

Yo the answers B

√3/2

Step-by-step explanation:

Answer:

25x + 50y <= 500