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4 years ago

20 POINTS! WILL MARK BRAINIEST FOR FIRST CORRECT ANSWER!

Mathematics

2 answers:

Neko [114]4 years ago

5 0

Answer:

brainly.com/question/8182874

Step-by-step explanation:

Harrizon [31]4 years ago

3 0

Answer:

Area: 5π/2 in²

Perimeter: (3π+2) in

step-by-step explanation:

Area =

larger semicircle + small semicircle

= ½(pi × r1²) + ½(pi × r2²)

r1 = 2 in

r2 = 2/2 = 1 in

Area:

½(pi × 2²) + ½(pi × 1²)

= 2pi + ½pi

= 5pi/2 in²

Perimeter:

½(2pi × r1) + ½(2pi × r2) + r1

½(2pi × 2) + ½(2pi × 1) + 2

2pi + pi + 2

3pi + 2

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A bag contains 4 red marbles, 3 blue marbles and 6 green marbles. If two marbles are

jok3333 [9.3K]

Answer:

Answer:Step-by-step explanation:Total marble = 4+6+7 = 17Number of green = 7Prob(1st green) = 7/17Now their are 6 green left and 16 marbleProb(2nd green) = 6/16 = 3/8Now their are 5 green left and 15 marbleProb(3rd green) = 5/15 = 1/3Prob(1st and 2nd and 3rd green) will be = 7/17 × 3/8 × 1/3= 7/(17×8)= 7/136.

Step-by-step explanation:

5 0

4 years ago

A company produces and sells CDs. There is a fixed cost of $2000 and $5 per CD manufactured. The manufacturer sells each CD for

OlgaM077 [116]

Call the production cost 'C', the revenue 'R' and the number of CDs 'n':

C=2000+5n
R=10n
By definition Profit P = R-C, therefore P=10n-2000+5n = 5n-2000.

7 0

4 years ago

5 [a] 8cm 11cm 6cm What is the surface area

Paha777 [63]

Answer:

424 cm²

Step-by-step explanation:

8 x 11 = 88 = 1 side

88 x 2 = 196 = 2 sides

11 x 6 =66 = 3 sides

66 x 2 = 132 = 4 sides

8 x 6 = 48 = 5 sides

48 x 2 = 96 = 6 sides

196 + 132+ 96 = 424

5 0

3 years ago

Only answer if your 100% sure What equation is shown by the graph

devlian [24]

Hello!

The equation for a line is y = mx + b

m is the slope
b is the y-intercept

The y-intercept is -3

y = mx - 3

To find the slope you count how many times up and over it goes from point to point

It goes up one over one

$y = \frac{1}{1} x - 3$

Simplify

The answer is y = x - 3

Hope this helps!

5 0

4 years ago

Select the ordered pair that satisfies the function y = 2x +3.

alukav5142 [94]

Answer:

Step-by-step explanation:

Choose your own x values and find the corresponding y values.

Here's a table of values

x y= 2x + 3 (x, y)

0 3 (0, 3)

2 2(2) + 3 = 7 (2, 7)

and so on

8 0

3 years ago