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vaieri [72.5K]
3 years ago
8

What is 54% of 450 on carnegie

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
7 0
54:450*100 =

(54*100):450 =

5400:450 = 12
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Sue invests £9000 in an account for one year.
Anika [276]

Answer:

£151.20

Step-by-step explanation:

20%= 100%divided by 5

To find 100% from 20% you x by 5

so you times 30.24 by 5

30.24x 5 = 151.2

So the answer is £151.20

interest percentage rate would be 1.6754%

3 0
3 years ago
50 POINTS FOR 2 QUESTIONS!
labwork [276]

Answer: first one B/the second one and c/the third one for the next question

Step-by-step explanation:

5 0
3 years ago
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Calculate y as a function of x when dy/dx = 4x3 + 3x2 - 6x + 5
PtichkaEL [24]
Answer:
y = x⁴ + x³ - 3x² + 5x + C

======

Separable differential equations such as these ones can be solved by treating dy/dx as a ratio of differentials. Then move the dx with all the x terms and move the dy with all the y terms. After that, integrate both sides of the equation.

   \begin{aligned}
\dfrac{dy}{dx} &= 4x^3 + 3x^2 - 6x + 5 \\
dy &= (4x^3 + 3x^2 - 6x + 5) dx \\
\int dy &= \int (4x^3 + 3x^2 - 6x + 5) dx 
\end{aligned}

In general (understood that +C portions are still there), 

   \int x^{m} = \dfrac{x^{m+1}}{m+1}

Note that ∫dy = y  since it is ∫1·dy = ∫y⁰ dy = y¹/(0+1) = y
For the right-hand side, we use the sum/difference rule for integrals, which says that

   \int \big[f(x) \pm g(x)\big]\, dx = \int f(x)\,dx \pm \int g(x) \, dx

Applying these concepts:

   \begin{aligned} 
 \int dy &= \int (4x^3 + 3x^2 - 6x + 5) \, dx \\
y &= \int 4x^3\,dx + \int 3x^2 \, dx - \int 6x\, dx + \int 5\, dx \\
&= \frac{4x^4}{4} + \frac{3x^3}{3} - \frac{6x^2}{2} + 5x + C \qquad \text{(only one $C$ is needed)} \\
&= x^4 + x^3 - 3x^2 + 5x + C
\end{aligned}

The answer is y = x⁴ + x³ - 3x² + 5x + C
6 0
3 years ago
Points (2,3) and (6,6) lie on line v. What is the slope of the line that is perpendicular to v?
Katyanochek1 [597]
(2,3) = (a,b)
(6,6) = (c,d)
D-B/C-A (To help remember, Dog Bites Cat's Arm)
6-3/6-2 = 3/4
Flip it
4/3 - the answer is c
5 0
3 years ago
Find the difference of 3/4 and 1/28
Katen [24]

Answer:

Step-by-step explanation:

3/4- 1/28

3(7)/4(7)= 21/28-1/28

=20/28

=5/4

3 0
3 years ago
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