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3 years ago

A clock hand rotated from 12 to 6 this is

Mathematics

1 answer:

Nookie1986 [14]3 years ago

6 0

Answer:

If it's the hour hand, 1/4 of a day or 6 hours have passed. If it's the minute hand, 1/48 of a day or 30 minutes have passed.

Step-by-step explanation:

BRAINLIEST, PLEASE!

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Which expression shows the result of applying the distributive property to −2(13x−15) ? 23x−25 −23x−25 23x+25 −23x+25

PIT_PIT [208]

−2(13x−15)
distribute by multiplication -2 to 13x and -15

-26x+30

4 0

4 years ago

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How do you solve 1/3+1/4?

Otrada [13]

Answer:

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

(1/3×4/4)+(1/4×3/3)=?

Complete the multiplication and the equation becomes

4/12+3/12=?

The two fractions now have like denominators so you can add the numerators.

Then:

4+3

12= 7/12

This fraction cannot be reduced.

Therefore:

1/3+1/4=7/12

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3 years ago

The length of a rectangle is increasing at a rate of 4 meters per day and the width is increasing at a rate of 1 meter per day.

puteri [66]

Answer:

$\displaystyle \frac{dA}{dt} = 102 \ m^2/day$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Geometry

Area of a Rectangle: A = lw

l is length
w is width

Calculus

Derivatives

Derivative Notation

Implicit Differentiation

Differentiation with respect to time

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

Step-by-step explanation:

Step 1: Define

$\displaystyle l = 10 \ meters$

$\displaystyle \frac{dl}{dt} = 4 \ m/day$

$\displaystyle w = 23 \ meters$

$\displaystyle \frac{dw}{dt} = 1 \ m/day$

Step 2: Differentiate

[Area of Rectangle] Product Rule: $\displaystyle \frac{dA}{dt} = l\frac{dw}{dt} + w\frac{dl}{dt}$

Step 3: Solve

[Rate] Substitute in variables [Derivative]: $\displaystyle \frac{dA}{dt} = (10 \ m)(1 \ m/day) + (23 \ m)(4 \ m/day)$
[Rate] Multiply: $\displaystyle \frac{dA}{dt} = 10 \ m^2/day + 92 \ m^2/day$
[Rate] Add: $\displaystyle \frac{dA}{dt} = 102 \ m^2/day$

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

Unit: Implicit Differentiation

Book: College Calculus 10e

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4 years ago

Solve for x in the equation: 3 over 7 x + 5 = 8 — please help i will give brainliest!

Eddi Din [679]

Answer:

3/7 x +5=8

move 5 to the other side

3/7 x= 8-5

3/7 x= 3

then move 7 to the other side it's sign is ÷ it will be ×

then 3x=3×7

3x=21

then move 3to the other side it's sign is × it will become ÷

x= 21/3

x= 7

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4 years ago

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What is 141.15 as a rational number

V125BC [204]

The answer is 14115/100.
The definition of a rational number is a number that can be divided by a integer.
So pi for example is an irrational number because it continuously goes on.
You can't divide pi accurate in a fraction.

7 0

3 years ago

A clock hand rotated from 12 to 6 this is​

A clock hand rotated from 12 to 6 this is