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puteri [66]
3 years ago
12

Write and algebraic expression for nine times of the square of a number

Mathematics
1 answer:
salantis [7]3 years ago
3 0

Answer:

9• x2

Step-by-step explanation:

Well you have 9 and then you times(•) then X is the number we don’t know. Then x would be squared(like the image below).

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Esther's company has been contracted to lay carpet in a room at a new observatory. The floor plan for the room is in the shape o
timofeeve [1]

Answer:

  • 3960 ft²

Step-by-step explanation:

The pentagon has been split into 5 congruent triangles.

<u>Each triangle has area of:</u>

  • 1/2*48*\sqrt{40.8^2 - (48/2)^2} = 24*\sqrt{1088.64} = 24*33 = 792 ft²

<u>The area of the room is:</u>

  • 792*5 = 3960 ft²

5 0
2 years ago
What is third of 1 2/3
arlik [135]

Answer:

5/9

Step-by-step explanation:

1/3 * 1 2/3

1/3 * 5/3

5/9

8 0
3 years ago
Read 2 more answers
What is the surface area of a right come with a radius of 20 and a height of 15?
Allisa [31]

The first step in finding the surface area of a cone is to measure the radius of the circle part of the cone. The next step is to find the area of the circle, or base. The area of a circle is 3.14 times the radius squared (πr2). Now, you will need to find the area of the cone itself. In order to do this, you must measure the side (slant height) of the cone. Make sure you use the same form of measurement as the radius.

You can now use the measurement of the side to find the area of the cone. The formula for the area of a cone is 3.14 times the radius times the side (πrl).

So the surface area of the cone equals the area of the circle plus the area of the cone and the final formula is given by:

SA = πr2 + πrl

5 0
3 years ago
15 less than a number tripled is equivalent to the difference of the same number and 12
Nitella [24]

Step-by-step explanation:

x = number

3x - 15 = (x - 12)×-4 or (12-x)×-4

3x - 15 = -4x + 48 or -48 + 4x

7x = 63, x = 9 or

33 = x

4 0
3 years ago
At restaurants waiters typically receive tips that average 15% of the customer’s bill. At this rate, which of the following is t
kodGreya [7K]

Answer:

B $12.69

Step-by-step explanation:

Divide 84.63 by 100 to get 1% of the bill and then multiply the answer by 15 for 15% and round it:

$\frac{84.63}{100} \times 15 = 12.6945$

The closest answer would be B $12.69.

3 0
3 years ago
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