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2 years ago

What conclusion can be made based on this multiplication problem?

Mathematics

1 answer:

Elena L [17]2 years ago

4 0

Answer:

I believe it is twenty-one is 7 times the size of 3

Step-by-step explanation:

You might be interested in

For options A– E choose all of the expressions that are equivalent to 3(4x + 3).

Katen [24]

3(4x+3) = 12x + 9
A= 3(4x+1)
B= 9 + 12x
C= 7x + 6
D= 12x + 9
E= 12x + 9

Answer: D, E

Hope This Helps✨

3 0

2 years ago

The sector COB is cut from the circle with center O. The ratio of the area of the sector removed from the whole circle to the ar

mafiozo [28]

Answer:

$Ratio = \frac{R^2 - r^2 }{ r^2}$

Step-by-step explanation:

Given

See attachment for circles

Required

Ratio of the outer sector to inner sector

The area of a sector is:

$Area = \frac{\theta}{360}\pi r^2$

For the inner circle

$r \to radius$

The sector of the inner circle has the following area

$A_1 = \frac{\theta}{360}\pi r^2$

For the whole circle

$R \to Radius$

The sector of the outer sector has the following area

$A_2 = \frac{\theta}{360}\pi (R^2 - r^2)$

So, the ratio of the outer sector to the inner sector is:

$Ratio = A_2 : A_1$

$Ratio = \frac{\theta}{360}\pi (R^2 - r^2) : \frac{\theta}{360}\pi r^2$

Cancel out common factor

$Ratio = R^2 - r^2 : r^2$

Express as fraction

$Ratio = \frac{R^2 - r^2 }{ r^2}$

6 0

2 years ago

A birthday celebration meal is $46.80 including tax, but not the tip. find the total cost if a 10% tip is added to the cost of

irina1246 [14]

$51.48 should be the answer

8 0

2 years ago

Find the equation of the circle with center at

Vinvika [58]

Radius (R) is equal to the distance between the points (-2,1) and <span>(3,1)
R</span>² = (-2 - 3)² + (1 - 1)² = (-5)² + 0 = 25
R = 5

<span>Equation of the circle:
</span>(х-(-2))² + (у-1)² = 5²
(х+2)² + (у-1)² = 25

4 0

2 years ago

A factory can assemble 150 cars in 3 hours. At this rate, how many cars can be assemble in 8 hours?

Orlov [11]

To find this out first we will see how many cars they assemble in 1 hour. Lets do it:-

150 / 3 = 50
50 cars per hr

50 * 8 = 400
400 cars in 8 hrs

CHECK OUR WORK;-

400 / 8 = 50
We were RIGHT!!

So, in 8 hrs the factory can assemble 400 cars.

Hope I helped ya!! xD

5 0

2 years ago

Read 2 more answers