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saveliy_v [14]
4 years ago
12

Pls can someone help me with math pls I’m this is my last points..

Mathematics
1 answer:
LiRa [457]4 years ago
3 0

Answer:

Please read all of this! Underlined things are the answers. The area of the entire circle is 19.625

Step-by-step explanation:

(This is a circle so the middle line is the diameter. According to the attachment, the diameter is 5 cm. To find the area, we have to multiply π and the radius squared. The radius is half of the diameter.

5 ÷ 2 = 2.5

2.5² = 6.25

π = 3.14

3.14 x 6.25 = 19.625)

Ignore the top I just realized what I'm supposed to do but I left it there just in case you need help!

<u>The right and left shaded regions areas are 6.28 each.</u>

4 ÷ 2 = 2

2² = 4

3.14 x 4 = 12.56

Since this is a semi circle, we cut it in half.

12.56 ÷ 2 = 6.28

To find the top and bottom shaded region's areas, repeat the same steps.

3 ÷ 2 = 1.5

1.5² = 2.25

3.14 x 2.25 = 7.065

7.065 ÷ 2 = 3.5325

<u>The areas of the the top and bottom shaded regions are 3.5325 each.</u>

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Given the points R(6, -2) and T(-9, -7), find the coordinates of point S on line segment RT such that the ratio of RS to ST is 3
Kay [80]

Answer:

The coordinates of the point are (-3,-5)

Step-by-step explanation:

Here, we want to find the coordinates of the point that divides the segment in the ratio 3:2

We shall use the internal division formula;

(x,y) = (mx2 + nx1)/(m + n) , (my2 + ny1)/(m+ n)

Where in this case;

(x1,y1) = (6,-2)

(x2,y2) = (-9,-7)

(m, n) = 3,2

Substituting these values;

(x,y) = (3(-9) + 2(6))/(3+2) , (3(-7) + 2(-2))/(3+2)

(x,y) = (-27 + 12)/5 , (-21 -4)/5

(x ,y) = (-15/5, -25/5)

(x , y) = (-3,-5)

8 0
3 years ago
If f(x) = x2 + 2x - 2 and g(x) = 3x + 4, what is h(x) when h(x) = f(x) – g(x)?
wolverine [178]

Answer:

  x^2 -x -6

Step-by-step explanation:

f(x) = x^2 + 2x - 2 and g(x) = 3x + 4,

h(x) = f(x) – g(x)

      = x^2 + 2x - 2 -(3x + 4)

Distribute the minus sign

           x^2 + 2x - 2 -3x - 4

Combine like terms

           x^2 -x -6

3 0
3 years ago
George paid a total of $985 to rent a storage unit.
kondaur [170]

Answer:

290 + 5m = 985

Step-by-step explanation:

<u>Given information</u>:

  • Initial payment = $290
  • Total payment = $985
  • Extra amount each month = m
  • Length of rental =  5 months

From the <u>given information</u>, we can create the following <u>equation</u>:

Initial payment <u>plus</u> extra amount each month for 5 months <u>equals</u> total payment.

⇒ 290 + 5m = 985

<u>To solve the equation</u>:

Subtract 290 from both sides:

⇒ 290 + 5m - 290 = 985 - 290

⇒ 5m = 695

Divide both sides by 5:

⇒ 5m ÷ 5 = 695 ÷ 5

⇒ m = 139

Therefore, the extra amount George paid each month was $139.

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