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pshichka [43]
3 years ago
11

A shirt cost $45 it is on sale at 40% what is the discount? HELP

Mathematics
2 answers:
RideAnS [48]3 years ago
8 0
The shirt would end up being 27 dollars
juin [17]3 years ago
6 0

Answer:

27$ is the price of the shirt on sale,and the discount is 18$

Step-by-step explanation:

40% of 45 is 18,so 45-18=27.

Mark me brainliest if this helped :D

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So I don't if I'm right help would be much appreciated
lukranit [14]

Answer:

A is the correct equation

Step-by-step explanation:


3 0
3 years ago
Given that f(–2.4) = -1 and f(-1.9) = -8, approximate<br> f'(-2.4).<br> f'(-2.4)
lora16 [44]

Answer:

f'(-2.4) ≈ -14

General Formulas and Concepts:
<u>Algebra I</u>

Coordinate Planes

  • Coordinates (x, y)

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

Functions

  • Function Notation

<u>Calculus</u>

Differentiation

  • Derivatives
  • Derivative Notation

Step-by-step explanation:

*Note:

The definition of a derivative is the slope of the <em>tangent</em> <em>line</em>.

<u>Step 1: Define</u>

<em>Identify.</em>

f(-2.4) = -1

f(-1.9) = -8

<u>Step 2: Differentiate</u>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>.

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

---

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

---

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

Unit: Differentiation

6 0
3 years ago
Tia, Leah, and Tim all solve the problem 3(-x + 4) = -3x - 12. Tia solved and decided that the solution is x= 4. Leah solved the
nexus9112 [7]

Answer:

Tina

Step-by-step explanation:

bc if you sub in 4 for x the equations on both sides are 0

check:

-4 + 4 = 0                         -3 x 4 = -12

0 x 3 = 0                          12 + -12 = 0

                    0 = 0

please mark this as brainiest!!!!

5 0
3 years ago
Ivan bought a box of macadamia nuts to bring home from his trip.
Agata [3.3K]

Answer: B. 140 cubic inches.

Step-by-step explanation:

The question is asking you to find the volume of the rectangular prism.

You can find this by using this formula:

V = w*h*l

Where w is the width, h is the height, and l is the length.

Substitute the sides of the rectangular prism into the equation:

V = 3.5 * 10 * 4\\\\V = 140

The volume of the prism is 140 cubic inches.

The correct answer is B.

4 0
3 years ago
8 percent of what number is 2
ki77a [65]
2 / 0.08 = 25 

<span>Therefore, 8 percent of 25 is 2.</span>
4 0
3 years ago
Read 2 more answers
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