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vlada-n [284]
3 years ago
12

The distance a spring will stretch varies directly with how much weight is attached to the spring. if a spring stretches 9 inche

s with 100 pounds attached, how far will it stretch with 90 pounds attached? round to the nearest tenth of an inch.
Mathematics
1 answer:
Tcecarenko [31]3 years ago
6 0
9/100 = x/90
Cross multiply to get 810 = 100x
Divide both sides by 100 to get x = 81 inches
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What’s the output of f(3)=-6x+4
stepladder [879]

Answer:

-14

Step-by-step explanation:

plug 3 into x

multiply -6 by 3=-18

-18 +4 =-14

6 0
4 years ago
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The sum of two numbers is 56, and their difference is 10. What are the numbers?
Elanso [62]

Answer:

23 and 33

Step-by-step explanation:

23+33=56

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3 years ago
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Find the values of x in this equation: x – 15 x = 2 . A. -7, 3 B. -5, 2 C. -7, 5 D. -2, 5 E. -3, 5
givi [52]

Answer:

Step-by-step explanation:

The given expression is x- \frac{15}{x} = 2

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\frac{x^{2}-15 }{x} =2

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x² - 5x + 3x - 15 = 0

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Therefore, x = -3 and 5 will be the solution.

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3 0
3 years ago
I need some help pls​
NikAS [45]
M = 3
y-intercept = -4

hope this helps
4 0
3 years ago
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If the vertex of a parabola is (-4, 6) and another point on the curve is (-3, 14), what is the coefficient of the squared expres
Luda [366]
\bf \qquad \textit{parabola vertex form}\\\\\begin{array}{llll}
\boxed{y=a(x-{{ h}})^2+{{ k}}}\\\\
x=a(y-{{ k}})^2+{{ h}}
\end{array}\qquad\qquad  vertex\ ({{ h}},{{ k}})\\\\
-------------------------------\\\\
vertex\ (-4,6)\qquad 
\begin{cases}
h=-4\\
k=6
\end{cases}\implies y=a(x-(-4))^2+6
\\\\\\
y=a(x+4)^2+6
\\\\\\
\textit{we also know that }
\begin{cases}
x=-3\\
y=14
\end{cases}\implies 14=a(-3+4)^2+6

solve for "a"
8 0
4 years ago
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