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3 years ago

Please help me with these two questions. Find the circumference AND area for the circles on the right. (I will mark brainliest)

Mathematics

2 answers:

notsponge [240]3 years ago

7 0

5). Radius = 6 km. Circumference = 12π km. Area = 36π km²

6). Diameter = 8 mm. Circumference = 8π mm. Area = 16π mm²

eimsori [14]3 years ago

7 0

Answers:

1. Circumference=12 pi on

 Area=36 pi km^2

2. Circumference=8 pi mm

 Area=16 pi mm ^2

Please see theattachedpicturefor full solution

Hope it helps

Good luck on your assignment

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Find the area of the polygon with the given vertices. J(-3,4), K(4,4), L(3,-3)

Margarita [4]

Answer:

<h2> A = 24.5 square units</h2>

Step-by-step explanation:

$J(-3,\,4)\ \ \implies\ y_J=4\\\\K(4,\,4)\ \ \implies\ y_K=4\\\\y_K=y_J\ \ \implies\ JK\parallel X{-}axis\ \implies\ H=|y_L-y_K|\quad\ \{for\ JK=base\}\\\\H=|-3-4|=|-7|=7\\\\\\ JK\parallel X{-}axis\ \implies\ B=JK=|x_J-x_K|=|-3-4|=7\\\\\\A=\frac12BH\\\\A=\frac12\cdot7\cdot7=24.5$

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3 years ago

Finally, suppose you decide not to finance (get a loan for) the car and to

Alexxandr [17]

Supposing a cost of $30,000, and using proportions, it is found that you would have to save $1,083.30 each month.

--------------------------

We suppose a cost of $30,000.

You already have $4,000 saved.
30 - 4 = 26, thus, you would need to save $26,000 in 2 years = 24 months.
How much per month?

We can solve it using proportions, by the following rule of three:

1 month - $x

24 months - $26,000

Applying cross multiplication:

$24x = 26000$

$x = \frac{26000}{24}$

$x = 1083.3$

You would have to save $1,083.30 each month.

A similar problem is given at brainly.com/question/24112433

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2 years ago

Solve using the substitution method 4x-2y=8 y=1/2x +2

bekas [8.4K]

Hello there! the answer would be x = 3/4.

You are given the two equations: 4x - 2y = 8 and y = 1/2x + 2. You are asked to solve via substitution. To do this, substitute the value of y in the second given equation into the first given equation, and solve using PEMDAS.

4x - 2(1/2x + 2) = 8 - Start by distributing 2 into (1/2x + 2).

4x - 1x + 4 = 8 - Combine like terms.

3x + 4 = 8 - Subtract 4 from both sides.

3x = 4 - divide both sides by 3.

x = 3/4. This is your final answer.

I hope this was helpful, have a great day! :)

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3 years ago

The slope is -4, and it passes through ( 5, 8). a. y = -4x + 8 c. y = -4x - 12 b. y = -4x + 28 d. y = -8x + 28

andrew-mc [135]

Slope=delta y/deltax-4=(y-8)/(x-5)y-8=-4x+20y=-4x+28answer is B

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3 years ago

The total number of apples, T, is directly

brilliants [131]

Step-by-step explanation:

Given that,

The total number of apples, T, is directly proportional to the number of baskets,n, of apples.

(a) Mathematically, it can be written as :

$T\propto n\\\\T=kn$ ....(1)

Put T = 120 and n = 5

So,

$k=\dfrac{T}{n}\\\\k=\dfrac{120}{5}\\\\k=24$

(b) k is equal to 24. It means the constant of proportionality is 24.

T = 24(8) = 192 apples

Hence, this is the required solution.

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3 years ago