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3 years ago

If u are doing area do u add or multiply and what do you do for perimeter too 99 points

Mathematics

2 answers:

liubo4ka [24]3 years ago

5 0

Area you multiply!
Perimeter you are al the sides!

lesya692 [45]3 years ago

4 0

Answer: For perimeter, you add all the sides together.

For Area, you mutiply length by width.

Step-by-step explanation:

A square has 8 cms for all 4 sides.

For perimeter, you would just add 8, 4 times. Which equals 32.

For area, you would mutiply 8 by 8. Which equals 64.

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The possible outcomes for tossing a coin four times are shown below.

valentinak56 [21]

Step-by-step explanation:

The probability of getting exactly four heads is 1/16.

There are 16 different posible outcomes and only 1 is all heads.

That makes the answer 1 out of 16 or 1/16.

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3 years ago

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3 years ago

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find the curved surface area and total surface area of a right circular cylinder whose height is 15 cm and the radius of the bas

otez555 [7]

Answer:

$CSA = 660cm^2$ --- Curved Surface Area

$TSA = 968cm^2$ --- Total Surface Area

Step-by-step explanation:

Given

Shape: Cylinder

$h = 15$ -- height

$r = 7$ --- radius

Solving (a): The curved surface area (CSA)

This is calculated as:

$CSA = 2\pi rh$

This gives:

$CSA = 2 * \frac{22}{7} * 7 * 15$

$CSA = 2 * 22* 15$

$CSA = 660cm^2$

Solving (b): The total surface area (TSA)

This is calculated as:

$TSA = 2\pi r(h + r)$

This gives:

$TSA = 2 * \frac{22}{7} * 7 * (15 + 7)$

$TSA = 2 * 22 * (15 + 7)$

$TSA = 2 * 22 * 22$

$TSA = 968cm^2$

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3 years ago

Which ordered pair makes both inequalities true for y> -2x + 3 and y ≤ x - 2

lina2011 [118]

Answer:

(2,0)

Step-by-step explanation:

Substitution, 0> -2(2) + 3 which equals, 0> -1 True

0= 2 - 2 True

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3 years ago

You have a credit card that has a balance of $3,589.90 and a credit limit of $5,000. If you have a good credit rating, how much

vesna_86 [32]

Answer:

$1107.55

Step-by-step explanation:

3,589.90 x .0590/12 = $17.65

3,589.90 + 17.65 =3,607.55

3,607.55 - 2,500 = $1,107.55

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3 years ago