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Rus_ich [418]
3 years ago
15

What is the error made

Mathematics
1 answer:
sp2606 [1]3 years ago
7 0

Answer:

see below

Step-by-step explanation:

The formula for slope is

m = (y2-y1)/(x2-x1)

The person who tried to solve the problem did

Subtracted the x's over the y's instead of the y's over the x's

It should be (0-3)/(-4 -2)

                     -3/-6

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F(x) = 2x^2 - 5x - 15<br> g(x) = -2x - 1<br> find f(g(x)) ... somebody help me :(
Lapatulllka [165]

Answer:

f(g(x)) = 8x² + 18x - 8

Step-by-step explanation:

Substitute x = g(x) into f(x) , that is

f(g(x))

= f(- 2x - 1)

= 2(- 2x - 1)² - 5(- 2x - 1) - 15

= 2(4x² + 4x + 1) + 10x + 5 - 15

= 8x² + 8x + 2 + 10x - 10

= 8x² + 18x - 8

4 0
3 years ago
A collector has 180 movie posters and 100 band posters she wants to sell 36 movie posters but she still has her poster collectio
zaharov [31]

Answer:

20 band posters

Step-by-step explanation:

\frac{36}{180} = \frac{20}{100}

7 0
4 years ago
What are the x-intercepts of f(x)=x^3+4x^2-9x-36
Karolina [17]
The zeros are (-4,0),(-3,0),(3,0)
8 0
3 years ago
How many slices of pizza will ashley buy if the price is 1.00?
Anvisha [2.4K]
Need more info to complete this, how much money does Ashley have? 
4 0
4 years ago
Read 2 more answers
Adrian ordered a corduroy jacket for $48.29 and 2 sweaters for $35 each. With 7% sales tax and
chubhunter [2.5K]

His total order was $135.52 ⇒ 1st answer

Step-by-step explanation:

Adrian ordered a corduroy jacket for $48.29 and 2 sweaters for $35 each. With 7% sales tax and  shipping below

  • Shipping and Handling Charges
  • Up to $25  ⇒ $4.50
  • $25.01 to $75 ⇒ $6.95
  • $75.01 to $125 ⇒ $8.95
  • $125.01 to $150 ⇒ $10.95

We need to find how much his total order was

∵ The price of the jacket = $48.29

∵ The price of each sweater = $35

∵ He ordered 1 jacket and 2 sweaters

∴ The total price  = 48.29 + 2 × 35 = 48.29 + 70 = $118.28

∴ His total order = total price + tax + shipping

∵ The total price = 118.29

∵ The shipping cost from $75.01 to #125 = $8.95

∵ There is 7% sales tax and shipping cost

∵ Tax = 7% of the total price

∴ Tax = 7% × 118.29 = \frac{7}{100} × 118.29 = $8.28

Add the total price, the shaping and the tax to find his total order

∴ The total order = 118.29 + 8.95 + 8.28 = $135.52

His total order was $135.52

Learn more:

You can learn more about word problems in brainly.com/question/10557938

#LearnwithBrainly

5 0
3 years ago
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