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2 years ago

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A bag contains 5 blue marbles, 6 red marbles, and 9 green marbles. Two marbles are drawn at random, one at a time and without re

placement. What is the probability of selecting two red marbles?

1 answer:

den301095 [7]2 years ago

4 0

Answer: 2/20

Step-by-step explanation:

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4. Find the lateral area and surface area of the given prism.

scoundrel [369]

Answer:

<h2>Q4. S.A. = 752.28 m²</h2><h2>Q11. V = 384 ft³</h2>

Step-by-step explanation:

$\bold{Q4}\\\text{We have}\\\text{two right triangles with legs a = 4m and b = 7m}\\\text{three rectangles}\ 7m\ \times 38m,\ 8.06m\ \times\ 38m\ \text{and}\ 4m\ \times\ 38m\\\\\text{The formula of an area of a right triangle:}\\\\A=\dfrac{ab}{2}\\\\\text{substitute:}\\\\A_1=\dfrac{(4)(7)}{2}=\dfrac{28}{2}=14\ m^2\\\\\text{The formula of an area of a rectangle}\ l\ \times w:\\\\A=lw\\\\\text{substitute:}\\\\A_2=(7)(38)=266\ m^2\\A_3=(8.06)(38)=306.28\ m^2\\A_4=(4)(38)=152\ m^2\\\\\text{The Surface Area:}$

$S.A.=2A_1+A_2+A_3+A_4\\\\S.A.=2(14)+266+306.28+152=752.28\ m^2$

$\bold{Q11}\\(look\ at\ the\ picture)\\\\\text{The formula of a volume of a pyramid:}\\\\V=\dfrac{1}{3}BH\\\\B-\text{area of a base}\\H-\text{height}\\\\\text{In the base we have the square. The formula of an area of a square with side a:}\\\\A=a^2\\\\\text{We have}\ a=12ft.\ \text{Substitute:}\\\\B=12^2=144\ ft^2\\\\\text{For}\ H\ \text{we need use the Pythagorean theorem:}\\\\H^2+6^2=10^2\\\\H^2+36=100\qquad\text{subtract 36 from both sides}\\\\H^2=64\to H=\sqrt{64}\\\\H=8\ m$

$\text{Substitute:}\\\\V=\dfrac{1}{3}(144)(8)=(48)(8)=384\ ft^3$

5 0

3 years ago

Can someone help?????

Luden [163]

Answer:

i can Lol if you will help me after i help you

Step-by-step explanation:

put -6.5 in between -6 and -7. put -8.5 between -8 and -9. -6.5 is > than -8.5. hope this helped and i hope im right.

3 0

2 years ago

In a painting of the Mona Lisa, the length of the painting is 4 1/2 inches. Milo scales the drawing up by 2 3/4

tester [92]

Answer:

D

Step-by-step explanation:

4 1/2 x 2 3/4=12.375

12.375=12 3/8

6 0

2 years ago

What is the inequality of 10p – 8 ≥ 12.

LenaWriter [7]

Answer:

p > 2

Step-by-step explanation:

3 0

2 years ago

andreyandreev [35.5K]

Answer:

2,4,1

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers