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3 years ago

The local school board needs to choose whether to build an addition to the elementary school library or remodel the

Mathematics

1 answer:

11Alexandr11 [23.1K]3 years ago

7 0

Answer:

A random sample of 10% of all taxplayers

Step-by-step explanation:

Smaller sample sizes may not be representive of the population

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Find the area of the polygon with vertices K (-2,4), L (6,-2), M (4,-4), and N (-6, -2)

Dennis_Churaev [7]

Answer:

the answer is 12

Step-by-step explanation:

5 0

3 years ago

An urn contains 7 red marbles and 3 white marbles. three marbles are drawn from the urn one after the other. find the probabilit

vaieri [72.5K]

7+3 = 10 total marbles

1st pick = 7/10 for a red one

2nd pick = 6/9 reduces to 2/3 for a red one

3rd pick = 3/8 for a white one

7/10 x 2/3 =14/30 reduces to 7/15

7/15 x 3/8 = 21/120 reduces to 7/40

probability = 7/40

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3 years ago

If lateral surface area of cube is double then the ratio of volume of new cube to original cube

Solnce55 [7]

Answer:

2√2

Step-by-step explanation:

The area ratio is the square of the side length ratio, so the ratio of side lengths is √2.

The volume ratio is the cube of the side length ratio, so the new cube has a volume that is (√2)³ times that of the original.

The volume ratio is 2√2.

3 0

2 years ago

Slove this equation 28 /3

Snowcat [4.5K]

Answer:

Step-by-step explanation:

so u divide 28 by 3 and u get 9 but u have 1 left but if you keep dividing u will get 3 so its 9.33 into infinty

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3 years ago

A marina is in the shape of a coordinate grid. Boat A is docked at (3.1, −1) and Boat B is docked at (−4.1, −1). The boats are _

kirill115 [55]

Answer:

d = 7.2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra II

Distance Formula: $d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Boat A(3.1, -1)

Boat B(-4.1, -1)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d.

Substitute [DF]: $d = \sqrt{(-4.1-3.1)^2+(-1+1)^2}$
Subtract/Add: $d = \sqrt{(-7.2)^2+(0)^2}$
Exponents: $d = \sqrt{51.84}$
Evaluate: $d = 7.2$

8 0

2 years ago

Read 2 more answers