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Vikki [24]
3 years ago
10

The diameter of a circle is 9m.Find its area to the nearest tenth

Mathematics
1 answer:
kirill115 [55]3 years ago
8 0

Answer:

63.6m²

Step-by-step explanation:

The radius is 4.5m because it's half of the diameter.

Area = πr²

Area = π(4.5)² = 63.6m²

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When the square of a certain number is diminished by 9 times the number the result is 36?
ArbitrLikvidat [17]
X²-9x=36
minus 36 both sides
x²-9x-36=0
what 2 numbers multiply to -36 and add to -9
-12 and 3
(x-12)(x+3)=0
set to zero
x-12=0
x=12

x+3=0
x=-3



the number is either -3 or 12
3 0
3 years ago
Which one?????? i need help
borishaifa [10]
<h3>Given</h3>

x + 2 ≥ 6

<h3>Find</h3>

the graph for the solution

<h3>Solution</h3>

We can solve for x by subtacting 2 from both sides of the inequality.

... x + 2 -2 ≥ 6 -2

... x ≥ 4 . . . . . . . . . . simplify

The answer is read, "x is greater than or equal to 4." This means the solution is those real numbers that are to the right of 4 on the number line, and including 4 on the number line. Numbers to the left of 4 are <em>not included</em>. The inclusion of the number 4 is shown by putting a solid dot there (not an open circle).

The appropriate choice is the 3rd one.

5 0
2 years ago
What is the smallest and largest natural number​
Vladimir [108]

The smallest natural number is 1. The largest natural number does not exists because there will always be one even larger. But if you are asking the number of all natural numbers or the size of natural number set then \aleph_0 is your answer.

8 0
3 years ago
The woodlands middle school poll results show that about 79.3% of people who prefer pizza are students and about 81% of people w
vazorg [7]

Answer: A: there is not enough evidence to support a relationship between lunch preference and role at school

6 0
3 years ago
Read 2 more answers
Can anyone help me? Worth 10 points!!!
Andrews [41]

Answer:

33

Step-by-step explanation:

  1. Fabric for 1 pillow case: 1.5 ÷ 3 = 0.5
  2. Amount of pillow cases made with 16.5 yards of fabric: 16.5 ÷ 0.5 = 33

I hope this helps!

7 0
3 years ago
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