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mr Goodwill [35]
3 years ago
8

What is the percentage decrease if an item has dropped from $115 to $46

Mathematics
1 answer:
Sav [38]3 years ago
4 0

Answer: 60% decrease

Step-by-step explanation:

Look at the attachment

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Let u= < 4, -7>, v= <5, 3> find the component form for the vector -4u + 2v
Nata [24]

Answer:

-4u+2v = <-6, 34>

Step-by-step explanation:

u = <4, -7) → -4u = <-16, 28>

v = <5, 3> → 2v = <10, 6>

-4u+2v =  <-16, 28> + <10, 6> = <-6, 34>

5 0
3 years ago
Can anyone solve the last question?
sesenic [268]
As stated in (i), the equation of the line is: ln y = -0.015x + .26
(By the way, I checked your answers for parts (i) and (ii) and they are both correct)

(iii)
Plug in (1.1) for y and solve:
ln (1.1) = -0.015x + .26
0.095 = -0.015x + .26
-0.165 = - 0.015x
 10.979 = x

Answer: x = 10.979
7 0
3 years ago
Im solving variables -4y + 7 = -10y+37
Ulleksa [173]

Answer:

5

Step-by-step explanation:

move the terms

collect like terms

calculate

divide both side

8 0
3 years ago
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What is the total number of relative maximum and minimum points of the function whose derivative for all x is given by f ‘ (x) =
Alexeev081 [22]

Answer:

There are in total 3 maximum and minimum points of f(x)

Step-by-step explanation:

To find the number of stationary points (maximum and minimum points) in any function (f(x)), we need to find for what values of x does the derivative of f(x) equal to 0.

mathematically, for how many values of x does f'(x) = 0

f'(x) = x(x-3)^2(x+1)^4

0 = x(x-3)^2(x+1)^4

since the factors can be separately solved we can write

0 = x, 0 = (x-3)^2, 0 = (x+1)^4

x= 0, \sqrt{(x-3)^2} = \sqrt{0}, \sqrt{(x+1)^4}=\sqrt{0}

x=0, (x-3)=0, (x+1)=0

x = 0, x = 3, x = -1

Since there are 3 answers of x for which f'(x) = 0, we can say that the there are a total of 3 stationary (maximum or minimum) points in f(x).

8 0
3 years ago
What is .23 as a fraction
sammy [17]
23/100 or 23 over 100

3 0
3 years ago
Read 2 more answers
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