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3 years ago

Fractions between -8/10 and -4 / 5

Mathematics

1 answer:

ss7ja [257]3 years ago

4 0

Answer:

They are equal.

Step-by-step explanation:

-4/5=-8/10

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Solve for x 3x² - 5x + 6 = 10 - 4x

Nutka1998 [239]

Answer: $-1, \frac{4}{3}$

Step-by-step explanation:

$3x^{2}-5x+6=10-4x\\\\3x^{2}-x-4=0\\ \\ (x+1)(3x-4)=0 \\ \\ x=\boxed{-1, \frac{4}{3}}$

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2 years ago

Jamie has 4 apples and 6 bananas. Each apple cost 0.75 and each banana cost 0.6” write an expression representing the total cost

Lorico [155]

(0.75*4) + (0.6*6) = 6.6

answer: 6.6

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3 years ago

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Mr. Daniel recorded the scores for each student in his class in the form of Stem- Leaf table. If the passing score is 33 and all

iVinArrow [24]

Answer:

9 students failed

79 is the highest score

3 students got over 30 but less than 40

2 students scored 40

Step-by-step explanation:

anything under 33 is failing and there are 9 leaves less than 33

7 is the largest stem and 9 is the largest leaf on that stem

there are only 3 leaves greater than 30 but under 40 they are 31, 31, and 39

the only same scores over passing are 40s

3 0

3 years ago

A pumpkin patch has a width of 432 inches what is the width of pumpkin patch in yards

Oksi-84 [34.3K]

Answer:

Step-by-step explanation:

You take the number 432 and divide by 36 to get the answer.

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3 years ago

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Find the derivative of f(x) =( -7/x) at x = -3. pls help !!

jeka57 [31]

Answer:

$\displaystyle f'(-3) = \frac{7}{9}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Calculus

Derivatives

Derivative Notation

Derivative of a constant is a 0

Basic Power Rule:

f(x) = cxⁿ
f’(x) = c·nxⁿ⁻¹

Derivative Rule [Quotient Rule]: $\displaystyle \frac{d}{dx} [\frac{f(x)}{g(x)} ]=\frac{g(x)f'(x)-g'(x)f(x)}{g^2(x)}$

Step-by-step explanation:

Step 1: Define

$\displaystyle f(x) = \frac{-7}{x}$

$\displaystyle x = -3$

Step 2: Differentiate

Quotient Rule: $\displaystyle f'(x) = \frac{\frac{d}{dx}[7]x - \frac{d}{dx}[x](-7)}{x^2}$
Basic Power Rule: $\displaystyle f'(x) = \frac{(0)x - x^{1 - 1}(-7)}{x^2}$
Simplify: $\displaystyle f'(x) = \frac{(0)x - x^0(-7)}{x^2}$
Simplify: $\displaystyle f'(x) = \frac{(0)x - 1(-7)}{x^2}$
Multiply: $\displaystyle f'(x) = \frac{0 + 7}{x^2}$
Add: $\displaystyle f'(x) = \frac{7}{x^2}$

Step 3: Solve

Substitute in x [Derivative]: $\displaystyle f'(-3) = \frac{7}{(-3)^2}$
Evaluate exponents: $\displaystyle f'(-3) = \frac{7}{9}$

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

Unit: Derivatives

Book: College Calculus 10e

5 0

3 years ago