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Y_Kistochka [10]

3 years ago

6

sonya has a bag with 4 green marbles, 7 orange marbles and 9 blue marbles. She randomly selects one marble, does not replace it

and then selects another marble. What is the probability that sonya will pick two blue marbles?

1 answer:

wel3 years ago

8 0

What’s the answer choices?

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candice is going to replace the top of a table with a new piece of wood. How many square feet of wood would she purchase? 8ft. ,

lukranit [14]

Answer:

She needs to purchase 50 square feet of wood .

Step-by-step explanation:

we can find the number of square feet of wood needed to purchase by finding the area of the table

The area of the table = area of the triangle + area of the rectangle

Area of the triangle:

Area of the triangle = $\frac{1}{2}(base \times height)$

On substituting the values from the attached figure , we get

Area of the triangle = $\frac{1}{2}(4\times 5)$

Area of the triangle = $\frac{20}{2}$

Area of the triangle = 10 square feet

Area of the rectangle:

Area of the rectangle = Length X Breadth

On substituting the values from the attached figure , we get

Area of the triangle = $5 \times 8$

Area of the triangle = 40 square feet

Thus the area of the table = 10 + 40 = 50 square feet

5 0

3 years ago

There are 30 students in the class and 270 apples. if the apples are divided equally among the students, how many does each stud

Ede4ka [16]

Answer:

9

Step-by-step explanation:

270/30=9

7 0

3 years ago

Please answer all with explanation

stepladder [879]

3b.4+y/3=2

12+y/3=2

12+y=6

y=6-12

y=-6

.

8 0

3 years ago

What is the square root of 683

Mashutka [201]

Answer:

The square root of six hundred and eighty-three √683 = 26.13426869074

4 0

3 years ago

Read 2 more answers

A ball is thrown into the air by a baby alien on a planet in the system of Alpha Centauri with a velocity of 43 ft/s. Its height

Lina20 [59]

Answer:

Instantaneous Velocity at t = 1 is 20 feet per second

Step-by-step explanation:

We are given he following information in the question:

$y(t)=43t-23t^{2}$

B) Instantaneous Velocity at t = 1

$y(1) = 43(1)-23(1)^2 = 20$

A) Formula:

Average velocity =

$\displaystyle\frac{\text{Displacement}}{\text{Time}}$

1) 0.01

$y(1 + 0.01)=y(1.01) = 43(1.01)-23(1.01)^{2} = 19.9677\\\\\text{Average Velocity} = \dfrac{y(1.01)-y(1)}{1.01-1} =\dfrac{19.9677-20}{1.01-1}= \dfrac{-0.0323}{0.01} = -3.230000 \text{feet per second}$

2) 0.005 s

$y(1 + 0.005)=y(1.005) = 43(1.005)-23(1.005)^{2} = 19.984425\\\\\text{Average Velocity} = \dfrac{y(1.005)-y(1)}{1.005-1} =\dfrac{19.984425-20}{1.005-1} = -3.1150000 \text{feet per second}$

3) 0.002 s

$y(1 + 0.002)=y(1.002) = 43(1.002)-23(1.002)^{2} = 19.993908\\\\\text{Average Velocity} = \dfrac{y(1.002)-y(1)}{1.002-1} =\dfrac{19.993908-20}{1.002-1} = -3.0460000 \text{feet per second}$

4) 0.001 s

$y(1 + 0.001)=y(1.001) = 43(1.001)-23(1.001)^{2} = 19.996977\\\\\text{Average Velocity} = \dfrac{y(1.001)-y(1)}{1.001-1} =\frac{19.996977-20}{1.001-1} = -3.0230000 \text{feet per second}$

3 0

3 years ago