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Lelechka [254]
2 years ago
15

PLEASE HELLPO I NEED SOMEONE PLS

Mathematics
1 answer:
Digiron [165]2 years ago
7 0

Answer (if it is possible check the answer in other sources):

1: y=7x+5.553;

2: y=7x+7.99.

Step-by-step explanation:

all the details can be found in the attachment (the answer is marked with colour).

1) to determine f'(x);

2) to calculate the values x₀ within the given interval;

3) to calculate the values f(x₀);

4) to calculate the values of interception 'i';

5) to write the required equations using 's' and 'i'.

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A circle has a radius of 30 cm.
topjm [15]
It would be 60 because all you do is double the radius because it is only half of the circle
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2 years ago
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The quotient of two numbers is -12. One of the numbers is −3. What is the other number?
umka21 [38]
The answer is -4 because -4 times -3 equals -12
6 0
3 years ago
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ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing. Show your work or give an explaination.
mixer [17]

Answer:

B

Step-by-step explanation:

To solve for x, we have to get x by itself. To do this, perform the opposite of what is being done to the equation.

5x+14=k

First, subtract 14 from both sides, because 14 is being added on to 5x. Subtraction is the opposite of addition.

5x+14-14=k-14

5x=k-14

Now, divide both sides by 5, because 5 and x are being multiplied. Division is the opposite of multiplication.

5x/5=k-14/5

x=k-14/5

So, the correct answer is choice B

6 0
3 years ago
Evaluate the expression.<br><br><br><br><br><br> 2^1/2^4
tekilochka [14]
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6 0
3 years ago
Y''+Y'+Y=1<br> solve ordinary differential equation
taurus [48]

Answer:

y(t) = c₁ e^(-1/2 t) cos(√3/2 t) + c₂ e^(-1/2 t) sin(√3/2 t) + 1

Step-by-step explanation:

y" + y' + y = 1

This is a second order nonhomogenous differential equation with constant coefficients.

First, find the roots of the complementary solution.

y" + y' + y = 0

r² + r + 1 = 0

r = [ -1 ± √(1² − 4(1)(1)) ] / 2(1)

r = [ -1 ± √(1 − 4) ] / 2

r = -1/2 ± i√3/2

These roots are complex, so the complementary solution is:

y = c₁ e^(-1/2 t) cos(√3/2 t) + c₂ e^(-1/2 t) sin(√3/2 t)

Next, assume the particular solution has the form of the right hand side of the differential equation.  In this case, a constant.

y = c

Plug this into the differential equation and use undetermined coefficients to solve:

y" + y' + y = 1

0 + 0 + c = 1

c = 1

So the total solution is:

y(t) = c₁ e^(-1/2 t) cos(√3/2 t) + c₂ e^(-1/2 t) sin(√3/2 t) + 1

To solve for c₁ and c₂, you need to be given initial conditions.

5 0
2 years ago
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