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2 years ago

What is the percentage of 16 cm 12 cm rectangle

Mathematics

2 answers:

zimovet [89]2 years ago

7 0

It is a 25% decrease

andrew11 [14]2 years ago

6 0

Answer:

perimeter = 2 (l+b)

2 (16+12)

2 * 28

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Please help asap!!! Will give brainleist for the right answer

Solnce55 [7]

Answer:

I think the answer is 1,032 pounds

Step-by-step explanation:

You would have to multiply the dimensions of the table first:

8*3*1=24.

Then you would multiply that by 43.

24*43=1,032.

I THINK this is the answer.

5 0

2 years ago

I WILL GIVE BRAINLIEST!

Katyanochek1 [597]

Answer:

ANSWERS BELOW

Step-by-step explanation:

she decided to organise a 5k run ( main subject and action )

To raise money for thr families of patients at a local children's hospital ( why the subject took the action )

Drawing on her love of running ( where the subject got the idea for thr action from )

HOPE THIS HELPED

7 0

3 years ago

Slope is -2 and (5,3) is on the line Write the equation as well and how you solved it

expeople1 [14]

Answer:

y= -2x-7

Step-by-step explanation:

point-slope: y-y1=m(x-x1)

y-3=-2(x-5)

y-3=-2x-10

y=-2x-7

8 0

2 years ago

Anyone know this please help !!!

Natalija [7]

Answer:

see below

Step-by-step explanation:

6 1/2 = 6 + 1/2 *3/3 = 6 + 3/6

4 5/6

6 3/6

-4 5/6

-----------------

We need to borrow from the 6

6 3/6 = 5 + 6/6 + 3/6 = 5 9/6

5 9/6

-4 5/6

--------------------

1 4/6

We can simplify 4/6 to 2/3

Solution: 1 2/3

7 0

3 years ago

If the gradient of the tangent to

Marizza181 [45]

Answer:

Point A(9, 3)

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

Algebra I

Coordinates (x, y)
Functions
Function Notation
Terms/Coefficients
Anything to the 0th power is 1
Exponential Rule [Rewrite]: $\displaystyle b^{-m} = \frac{1}{b^m}$
Exponential Rule [Root Rewrite]: $\displaystyle \sqrt[n]{x} = x^{\frac{1}{n}}$

Calculus

Derivatives

Derivative Notation

Derivative of a constant is 0

Basic Power Rule:

f(x) = cxⁿ
f’(x) = c·nxⁿ⁻¹

Derivative Rule [Chain Rule]: $\displaystyle \frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)$

Step-by-step explanation:

Step 1: Define

Identify

$\displaystyle y = \sqrt{x}$

$\displaystyle y' = \frac{1}{6}$

Step 2: Differentiate

[Function] Rewrite [Exponential Rule - Root Rewrite]: $\displaystyle y = x^{\frac{1}{2}}$
Basic Power Rule: $\displaystyle y' = \frac{1}{2}x^{\frac{1}{2} - 1}$
Simplify: $\displaystyle y' = \frac{1}{2}x^{-\frac{1}{2}}$
[Derivative] Rewrite [Exponential Rule - Rewrite]: $\displaystyle y' = \frac{1}{2x^{\frac{1}{2}}}$
[Derivative] Rewrite [Exponential Rule - Root Rewrite]: $\displaystyle y' = \frac{1}{2\sqrt{x}}$

Step 3: Solve

Find coordinates of A.

x-coordinate

Substitute in y' [Derivative]: $\displaystyle \frac{1}{6} = \frac{1}{2\sqrt{x}}$
[Multiplication Property of Equality] Multiply 2 on both sides: $\displaystyle \frac{1}{3} = \frac{1}{\sqrt{x}}$
[Multiplication Property of Equality] Cross-multiply: $\displaystyle \sqrt{x} = 3$
[Equality Property] Square both sides: $\displaystyle x = 9$

y-coordinate

Substitute in x [Function]: $\displaystyle y = \sqrt{9}$
[√Radical] Evaluate: $\displaystyle y = 3$

∴ Coordinates of A is (9, 3).

Topic: AP Calculus AB/BC (Calculus I/II)

Unit: Derivatives

Book: College Calculus 10e

7 0

2 years ago