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natita [175]
3 years ago
10

What is the magnitude of -9

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
5 0

Answer:

I think the answer would be 9

Step-by-step explanation:

[ Sorry it's making type a longer answer ]

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Solve for u. m/u^2+r=−k−y
mylen [45]

9514 1404 393

Answer:

  u = ±√(-m/(k+r+y))

Step-by-step explanation:

Subtract r, rearrange, then take the square root.

  \dfrac{m}{u^2}+r=-k-y \qquad\text{given}\\\\ \dfrac{m}{u^2}=-k-y-r\\\\-\dfrac{m}{k+r+y}=u^2\\\\ \boxed{u=\pm\sqrt{-\dfrac{m}{k+r+y}}}

7 0
3 years ago
Tell if each equation represents exponential growth, exponential decay or neither.
scoray [572]

Answer:

Exponential growth A, B;

exponential decay C, E;

neither D.

Step-by-step explanation:

The function y=a\cdot b^x

  • represents exponential growth when b>1;
  • represents exponential decay when 0

A. The equation f(t)=\dfrac{2}{3}\cdot \left(\dfrac{7}{3}\right)^t represents exponential growth, because \dfrac{7}{3}>1.

B. The equation P=22\cdot \left(1.76\right)^x represents exponential growth, because 1.76>1.

C. The equation V=\dfrac{1}{3}\cdot \left(0.45\right)^x represents exponential decay, because 0

D. The equation W=3.2\cdot (x) represents neither exponential growth nor exponential decay, because this function is linear.

E. The equation g(x)=4.2\cdot \left(\dfrac{1}{3}\right)^x represents exponential decay, because 0

3 0
4 years ago
Solve a=lw for l. then find the length of a rectangle with the width of 50 millimeters and an area of 250 square millimeters
OleMash [197]
A = lw

l = \frac{a}{w}

w = 50 mm

a = 250 sq. mm

l = \frac{250}{50} =  \frac{25}{5} = 5 mm

Hence, the length is 5 mm.
4 0
3 years ago
Read 2 more answers
Which ratios are equivalent to 3/5? 3/4 5/3 5/7 6/10 12/20
Roman55 [17]
It would be: 6/10 & 12/20
7 0
4 years ago
Read 2 more answers
In △DEF, DF = 17 and m∠F=32. Find DF to the nearest tenth.
SSSSS [86.1K]
FE=14.42
ED=9.01
angle D=58
hope this helps
8 0
3 years ago
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