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4 years ago

What is standard form

Mathematics

1 answer:

Tems11 [23]4 years ago

3 0

Standard form is the way regular numbers are written.

Example: three plus sixty one times two in standard form is 3+61×2

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The volume of a right cylinder is 2,000π cubic feet, and the height is 20 feet. What is the length of the radius in feet?

laila [671]

Answer:

r = 10 ft

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
Subtraction Property of Equality

Geometry

Volume of a Cylinder Formula: V = πr²h

r is radius
h is height

Step-by-step explanation:

Step 1: Define

Identify variables

Volume V = 2000π ft³

Height h = 20 ft

Radius r = unknown

Step 2: Solve for r

Substitute in variables [Volume of a Right Cylinder Formula]: 2000π ft³ = πr²(20 ft)
[Division Property of Equality] Isolate r term: 100 ft² = r²
Rewrite: r² = 100 ft²
[Equality Property] Square root both sides: r = 10 ft

8 0

3 years ago

PLEASE HELP ME ...........Julie was looking at the architect's blueprint of her house. The scale on blueprint was 1/4 inch = 1 f

MAVERICK [17]

Answer:

On the blueprint the dimensions are 48 inches by 64 inches.

Step-by-step explanation:

Given:

The scale on blueprint was 1/4 inch = 1 foot.

The actual dimensions of her bedroom are 12 feet by 16 feet.

Now, to find the dimensions on the blueprint.

Let the dimensions on the blueprint be $x$ by $y.$

As, given the scale on blueprint:

$\frac{1}{4}\ inch=1\ foot$

So, $\frac{1}{4}\ inch$ is equivalent to 1 foot.

Thus, $x$ is equivalent to 12 feet.

And, $y$ is equivalent to 16 feet.

Now, solving by cross multiplication method:

$\frac{\frac{1}{4}}{1} = \frac{x}{12}$

$\frac{4}{1} =\frac{x}{12}$

By cross multiplying we get:

$48=x$

$x=48\ inches.$

Now, again:

$\frac{\frac{1}{4}}{1} =\frac{y}{16}$

$\frac{4}{1} =\frac{y}{16}$

By cross multiplying we get:

$64=y$

$y=64\ inches.$

Therefore, on the blueprint the dimensions are 48 inches by 64 inches.

6 0

3 years ago

Maths help please!!!!!!!!

boyakko [2]

Answer: The answer is a

Step-by-step explanation:

Let's solve for f.

fx=2x^3−3x^2

Step 1: Divide both sides by x.

fx/x =2x^3−3x^2/x

f=2x^2−3x

Answer:

f=2x^2−3x

6 0

3 years ago

Solve 19 - 81 = 14.

Mrrafil [7]

It would be -62. Hope it helps! :D

3 0

3 years ago

Read 2 more answers

Researchers want to know if taking increasing amounts of ginkgo biloba will result in increased capacities of memory ability for

Vlad [161]

Answer:

Step-by-step explanation:

The Explanatory variable otherwise know as the independent variable in the study is the Ginkgo biloba administered to the students in doses of 250,500 and 1000 milligrams everyday for one month.

5 0

4 years ago