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kenny6666 [7]
3 years ago
8

Stephen is making curtains for several windows in his aunt's house. He determines that he needs 8.5 yards of fabric for each win

dow. a. Write an equation to represent the number of yards of fabric needed given a certain number of windows. Answer y = 8.5x b. What is the rate of change in this situation? Answer _______
Mathematics
1 answer:
lions [1.4K]3 years ago
5 0

Answer:

\frac{dy}{dx}=8.5

Step-by-step explanation:

Let x denotes number of windows and y denotes the number of yards of fabric needed.

Stephen is making curtains for several windows in his aunt's house. He determines that he needs 8.5 yards of fabric for each window.

a. Equation becomes y=8.5x

This answer is already given in question.

b. To find rate of change in this situation, find \frac{dy}{dx}

y=8.5x

Differentiate with respect to x

\frac{dy}{dx}=8.5(1)=8.5

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What is the equation of the line that passes through the point (-2,2) and (0,5)? A. Y=-3/2x+5 B.Y=x-5 C.Y=3/2x+5 D. Y=x+5
Bond [772]
Bbbbbbbbbbbbbbbbbbbbbbbb
6 0
3 years ago
Un cuerpo de 180 kg se debe lanzar hacia una distancia de 25 m. ¿Qué valor tiene el trabajo que se realiza al lanzarlo?
dsp73

Answer:

45, 000 J o 45 KJ

Step-by-step explanation:

Recordemos que trabajo realizado = fuerza * distancia

En este caso, fuerza = peso del objeto

Por lo tanto, peso del objeto = 180 Kg * 10ms ^ 2 = 1800 N

Por eso;

Trabajo realizado = 1800 N * 25 m = 45, 000 J o 45 KJ

3 0
3 years ago
What is the slope of the line that passes through the points (5, 2) and (3,-1)?
oksano4ka [1.4K]
Slope = -4/5

to calculate the slope m use the gradient form

m = y2 -y1
————
x2 - x1


let (x1, y1) = (3,1) and (x2, y2) = (-2, 5)


m = 5 - 1 4
———- = ——-
-2 - 3 -5


= - 4/5
3 0
3 years ago
Someone just please help me no links no guessing seriously
Doss [256]

Answer:

no I can't u just ruined my mood

8 0
3 years ago
Every week, a car dealer ship sells at least 5 minivans. Write an inequality that represents this situation. Let c represent the
kvv77 [185]

Answer:

we conclude that an inequality 'c ≥ 5' denotes this situation.

Step-by-step explanation:

Given

  • A car dealer ship sells at least 5 minivans

When we talk about 'at least', it means we are talking about '≥' in terms of representing the 'at least' in inequality symbol.

For instance,

'm≥n' means 'm' is greater than or equal to 'n'.

It means 'm' is at least equal to 'n'.

Coming back to the question,

  • Let 'c' represent the number of minivans sold each week.

As the car dealer ship sells at least 5 minivans. so the

inequality will be: c ≥ 5

Thus, we conclude that an inequality 'c ≥ 5' denotes this situation.

8 0
3 years ago
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