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iren [92.7K]
3 years ago
7

HELP ASAP I WILL MARK YOU BRAINLYEST PLEASE HURRY!!!!

Mathematics
2 answers:
lesya [120]3 years ago
7 0
So because of the straight line rule, the angle above the x will be 80 because 180-100=80. So now you just do 80+60=140 and subtract that from 180. finally you'll have x = 40.
Sidana [21]3 years ago
3 0
X = 180 - 60 -  80
x = 40

hope it helps
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help help help please
spayn [35]

Answer:

I think the answer is that they are right angles so the measure is 90 degrees. Let me know if that is not an option.

Step-by-step explanation:

6 0
3 years ago
At what rate of interest whould rs 1800 amount to 2500 in 2 years
Trava [24]
A = P(1+r)^t
A = amount made after the specified time
P = original amount of money
r = rate
t = time

2500 = 1800 (1 + r)^2
2500/1800=(1800(1+r)^2)/1800
1.3888 = (1+r)^2
1.17851 = (1 +r)
1.17851 - 1 = r
Rate = .17851
7 0
3 years ago
Question 3 -
mario62 [17]
No, because for example 2+2 is 4 but if you mean -2+2 that is 0



Hope this is helpful
5 0
3 years ago
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
A barrel holds 50 l, how many gallons is this?
scoundrel [369]
The barrel holds 13.20 liters 
6 0
3 years ago
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