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1 year ago

Subtract. −13−(−6) a−19 b−7 c-19

Mathematics

2 answers:

Elza [17]1 year ago

6 0

Answer:

-7

Step-by-step explanation:

-13-(-6)

-13+6

-7

Nata [24]1 year ago

6 0

Answer:

6a- 19b - 7c -32

Step-by-step explanation:

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Factor the quadratic expression completely 15x^-4x-4

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Answer:

(5x+2)(3x-2)

Step-by-step explanation:

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2 years ago

A 2-digit number is one more than 6 times the sum of its digits. If the digits are reversed, the new number is 9 less than the o

kramer

Answer:

I think the answer is 43

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2 years ago

What are the roots to this quadratic equation?

myrzilka [38]

16x^2=9
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2 years ago

Alec paid the bill for dinner with his clients which totaled $140 before tax and tip. If an 8 percent sales tax was added to the

ch4aika [34]

The total cost of the dinner is $176.20.

<h3>What is the total cost of the dinner?</h3>

The total cost of the dinner is the sum of the bill for the dinner, the tax and the tip.

Total cost = tip + bill of the dinner + tip

Tax = 0.08 x 140 = $11.20

Total cost = $140 + $25 + $11.20 = $176.20

To learn more about taxes, please check: brainly.com/question/25311567

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1 year ago

Given that f(–2.4) = -1 and f(-1.9) = -8, approximate f'(-2.4). f'(-2.4)

lora16 [44]

Answer:

f'(-2.4) ≈ -14

General Formulas and Concepts:
Algebra I

Coordinate Planes

Coordinates (x, y)

Slope Formula: $\displaystyle m = \frac{y_2 - y_1}{x_2 - x_1}$

Functions

Function Notation

Calculus

Differentiation

Derivatives
Derivative Notation

Step-by-step explanation:

*Note:

The definition of a derivative is the slope of the tangent line.

Step 1: Define

Identify.

f(-2.4) = -1

f(-1.9) = -8

Step 2: Differentiate

Simply plug in the 2 coordinates into the slope formula to find slope m.

[Derivative] Set up [Slope Formula]: $\displaystyle f'(-2.4) \approx \frac{f(x_2) - f(x_1)}{x_2 - x_1}$
Substitute in coordinates: $\displaystyle f'(-2.4) \approx \frac{-8 - -1}{-1.9 - -2.4}$
Evaluate: $\displaystyle f'(-2.4) \approx -14$

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Learn more about derivatives: brainly.com/question/17830594

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

Unit: Differentiation

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2 years ago