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lara [203]
2 years ago
15

Activity 1: Directions: Write TRUE if the statement is true and FALSE if the statement is false.

Mathematics
1 answer:
LuckyWell [14K]2 years ago
5 0

Step-by-step explanation:

1.The formula in finding the area of a circle is derived from the area of a parallelogram. It is false.

2. The area of a circle is πr² where r is the radius of the circle. It is true.

3. The area of a circle is equal to pi divided by the square of the radius. It is false.

4. The diameter of a circle is equal to twice its radius i.e. d = 2r. It is true.

5. If r = 2.1 m

Area of circle, A =  πr²

= 3.14 (2.1)²

= 13.85 m²

Henc,e this is the required solution.

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Consider the vector add = a + b = [13 12 11 10 10] and sub = a - b = [-11 - 6 - 14 8]. Find the vector a and b.
prisoha [69]

Answer:

a = [1   3   5   7   9] and b = [12   9   6   3   1]

Step-by-step explanation:

The addition of two vectors a and b is defined as

a + b = [13   12   11   10   10]                .... (1)

The subtraction of two vectors a and b is defined as

a - b = [-11   - 6   - 1   4    8]                 .... (2)

After adding (1) and (2), we get

(a + b) + (a - b)= [13   12   11   10   10] + [-11   - 6   - 1   4    8]

On simplification we get

2a = [13-11   12-6   11-1   10+4   10+8]

2a = [2   6   10   14   18]

Divide both sides by 2.

a = [1   3   5   7   9]

Substitute the value of vector a in equation (1).

[1   3   5   7   9] + b = [13   12   11   10   10]

Subtract vector a from both sides.

b = [13   12   11   10   10] - [1   3   5   7   9]

On simplification we get

b = [13-1   12-3   11-5   10-7   10-9]

b = [12   9   6   3   1]

Therefore the vectors a and b are defined as a = [1   3   5   7   9] and b = [12   9   6   3   1].

4 0
2 years ago
Nathan is going to invest in an account paying an interest rate of 4.9% compounded continuously. How much would Nathan need to i
Naily [24]

Answer:

731.48

Step-by-step explanation:

you take 6 percent form 100 percent with give 94 percent

then you times 1200 by 94 percent 8 times to get answer

6 1
2 years ago
Read 2 more answers
What is 0.489 in word form please answer
stich3 [128]

Answer:

four hundred eighty nine thousandths

Step-by-step explanation:

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(-2.264) (14.51)= (type an integer or a decimal)
Klio2033 [76]

Answer:

(−2.264)(14.51)

ANSWER=−32.85064

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2 years ago
Happy Paws charges $19.00 plus $2.50 per hour to keep a dog during the day. Woof Watchers charges $14.00 plus $3.75 per hour. Co
avanturin [10]
$19.00 plus $2.50 = $21.50.
$14.00 plus $3.75 = $17.75
add $3.75 to $17.75 once to get 21.50
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3 years ago
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