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alukav5142 [94]
3 years ago
5

Composite Figure: 2 cones.

Mathematics
1 answer:
vladimir1956 [14]3 years ago
5 0

Answer:

So, your answers are. Cone 1 =47.12 Cone 2 = 75.4

Step-by-step explanation:

Simply, just find the equation for the volume of a cone, then multiply with what  is needed. The equation is Volume= pi x radius ^2 x height divided by 3.

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Sammie and Joel invest their money with the Grabitall Bank.
AlekseyPX
a) Sammie earns
  £320×4% = £12.80
each year.

Joel earns
  £420×3% = £12.60
each year.

Sammie earns the most interest.

b)
Joel's interest after 5 years is
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so the total amount of money Joel will have is
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5 0
3 years ago
Explain: What is the solution to this system of equations? <br><br> 2x+y=20 <br> 6x-5y=12
bazaltina [42]

Answer:

solution set is (x,y) = (7,6)

Step-by-step explanation:

solving by substitution method

2x +y=20--------------1

6x-5y=12---------------2

from equation 1, solve for y

2x+y=20

y= 20-2x------equation 3

adding value of y in equation 2

6x-5y=12

6x-5(20-2x)=12

6x-100+10x=12

16x= 12+100

16x= 112

x= 112/16

x=7

adding value of x in equation 3

y= 20-2x

y= 20- 2(7)

y=20-14

y=6

so solution set (x,y) = (7,6)

3 0
3 years ago
A set of ordered pairs is called ordered pairs is called
Amiraneli [1.4K]

A set of ordered pairs is called a relation. The set of all first components of the ordered pairs of a relation is the domain of the relation, and the set of all second components of the ordered pairs is the range of the relation. :)

4 0
3 years ago
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Jose has scored 562 points on his math test so far this this semester. To get an A for the semester, he must score at least 650
I am Lyosha [343]

Answer:

562 + x ≥ 650

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Step-by-step explanation:

He has 562 points.  He needs x points to get an A.  He must get at least 60 points to get an A.

562 + x ≥ 650

To solve this, we subtract 562 from each side

562-562 + x ≥ 650-562

x  ≥ 650-562

x ≥ 88

6 0
2 years ago
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