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morpeh [17]
3 years ago
11

Suppose you have a ​$8-off coupon at a fabric store. You buy fabric that costs ​$7.50 per yard. Write an equation that models th

e total amount of money y you pay if you buy x yards of fabric. What is the graph of the​ equation?
Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
7 0
The equation would be y = 7.50x - 8.
The graph would be an increasing straight line.
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Can someone explain to me what a “derivative” means? How do you find the derivative of f(x)=x^3+1?
Ostrovityanka [42]
The derivative is the rate of change of a function, basically represents the slope at different points. To find the derivative of the given function you can use the power rule, which means, if n is a real number, d/dx(x^n)= nx^(n-1). This is a simplification of the chain rule based on the fact that d/dx(x)=1. Anyway, this means that d/dx(x^3 + 1)= 3x^2. Here n is 3 and so it is 3*x^(3-1)= 3x^2. The derivative of x^3+1 is 3x^2.

If you are wondering what happened to the 1, for any constant C, d/dx(C)=0.
4 0
3 years ago
Determine if the two triangles are congruent. If so, select the appropriate congruence postulate. If not, select the reason why.
morpeh [17]

Answer:

Asa

Step-by-step explanation:

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4 0
2 years ago
Determine the volume of the shape below?<br> 30<br> 50<br> 40
sleet_krkn [62]

Answer:

30*50*40

= 60000

Step-by-step explanation:

yes

3 0
3 years ago
Read 2 more answers
On the first visit to the veterinarian's office, Elijah's puppy weighed 19 ounces. On the 2nd visit, the puppy had gained 9 ounc
Brums [2.3K]

Answer:

A)84%

Step-by-step explanation:

Orgin: 19 ounces

Second visit: 19+9=28 ounces

Third visit=28+7=35 ounces

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16/19=84.2%=84% increase

7 0
3 years ago
When solving negative one over eight (x + 35) = −7, what is the correct sequence of operations?
Fantom [35]
The answer is <span>Multiply each side by −8, subtract 35 from each side

</span>- \frac{1}{8}(x+35)=-7
<span>
Multiply each side by -8:
</span>(-8)(- \frac{1}{8})(x+35)=(-8)(-7) \\  \\ &#10;1(x + 35) = 56 \\ &#10;x + 35 = 56
<span>
Subtract 35 from each side:
</span>x + 35 -35 = 56-35 \\  \\ &#10;x + 0 =21 \\  \\ &#10;x = 21<span>
</span>
7 0
3 years ago
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