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3 years ago

Find the volume of the composite solid. ft3 pls help!! ::)))):):):):):):)

Mathematics

2 answers:

GREYUIT [131]3 years ago

8 0

Answer:

Step-by-step explanation:

because it is

MArishka [77]3 years ago

5 0

Answer: The volume of the composite solid is about 589.5 cubic feet.

Step-by-step explanation:

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jala has an aquarium in the shape of a rectangular prism with the dimensions shown. what is the height of the of the aquarium ?

beks73 [17]

I think that it your answer is 12.4 but im not 100% sure

plz mark brainiest

5 0

3 years ago

Read 2 more answers

The U.S. Energy Information Administration (US EIA) reported that the average price for a gallon of regular gasoline is $3.94 (U

tekilochka [14]

Answer:

a) 25

b) 49

c) 97

Step-by-step explanation:

The sample size is calculated using the formula, n = $(\frac{\sigma\times z}{\textup{Margin of error}})^2$

Now,

for 95% confidence level value of z-factor = 1.96

Given:

Mean = $3.94

standard deviation = $0.25

thus,

a) for margin of error = $0.10

n = $(\frac{\sigma\times z}{\textup{Margin of error}})^2$

n = $(\frac{0.25\times1.96}{\textup{0.10}})^2$

n = 4.9²

n = 24.01 ≈ 25 (Rounded off to next integer)

b) for margin of error = $0.07

n = $(\frac{\sigma\times z}{\textup{Margin of error}})^2$

n = $(\frac{0.25\times1.96}{\textup{0.07}})^2$

n = 7²

n = 49

c) for margin of error = $0.05

n = $(\frac{\sigma\times z}{\textup{Margin of error}})^2$

n = $(\frac{0.25\times1.96}{\textup{0.05}})^2$

n = 9.8²

n = 96.04 ≈ 97 (Rounded off to next integer)

6 0

3 years ago

How do I do this problem with solution by elimination? 2x+y=3 -2x+5y=-9

ddd [48]

Answer:

(2, -1)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtract Property of Equality

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

2x + y = 3

-2x + 5y = -9

Step 2: Solve for y

Elimination

Combine equations: 6y = -6
Divide 6 on both sides: y = -1

Step 3: Solve for x

Define equation: 2x + y = 3
Substitute in y: 2x - 1 = 3
Isolate y term: 2x = 4
Isolate y: x = 2

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3 years ago

Based on a poll, 66% of Internet users are more careful about personal information when using a public Wi-Fi hotspot. What is

Harlamova29_29 [7]

Answer:

Step-by-step explanation:

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1 year ago

Probability and Playing Cards

vodomira [7]

Answer:

do the calculation below

Step-by-step explanation:

(4/52 ) *(3/51)