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shusha [124]
3 years ago
12

Find solution to initial value problem: y'' +4y' +7y = 0; y(0) = 1, y'(0) = -2

Mathematics
1 answer:
rusak2 [61]3 years ago
4 0
Try this option, modify design according to local requirements.

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11=12-q <br><br> Step by step in numbers
Lina20 [59]

Answer:

q = 1

Step-by-step explanation:

11=12-q\\\\12-q=11\\\\12-12-q=11-12\\\\-q=-1\\\\\frac{-q=-1}{-1}\\\\\boxed{q=1}

Hope this helps.

3 0
3 years ago
PLEASE HELP IREADY ASAAPPPPP
a_sh-v [17]

Answer:

The third one. The square in the top left can only fold to the right or down.... which means there is guaranteed to be an open side remaining on the square.

3 0
2 years ago
Read 2 more answers
6 feet<br> 12 feet<br> What is the area of the given composite shape?
Reika [66]

Answer:

choice A; 128.52 square feet

Step-by-step explanation:

This shape is made up of a semi-circle and a rectangle. The area of the rectangle will be 12*6 = 72 sq ft.

The formula for area of a circle is \pi*r^{2}. also r=radius. We are given the diameter, 12 feet. The radius is diameter/2, so the radius of the circle will be 6 feet.

Since pi is infinite we round it to 3.14.

Plug in the values and our expression will be (3.14*6^{2})/2 because it is a semi-circle. Simplify that to (3.14*36)/2 = 113.04/2 = 56.52 sq ft.

Remember to add the area of the rectangle and semi-circle. 72 + 56.52 = 128.52 sq ft.

3 0
2 years ago
- 4x + 3y +z, if x=-5, y=2 and z=0
Gala2k [10]
  • Answer:

<em>26</em>

  • Step-by-step explanation:

<em>- 4x + 3y + z =</em>

<em>= -4(-5) + 3(2) + 0</em>

<em>= 20 + 6 + 0</em>

<em>= 26</em>

<em />

4 0
2 years ago
Read 2 more answers
Manufacturers are testing a die to make sure that it is fair (has a uniform distribution). They roll the die 66 times and record
steposvetlana [31]

Answer:

We should reject H0

At the 5% significance level, there is sufficient evidence to conclude that the die is not fair.

Step-by-step explanation:

Null hypothesis is a statement that is to be tested against the alternative hypothesis and then decision is taken whether to accept or reject the null hypothesis. The critical value is 15.091 and  test statistic is 11.070. The null hypothesis is rejected or accepted on the basis of level of significance. When the p-value Test statistics is greater than level of significance we fail to reject the null hypothesis and null hypothesis is then accepted. In the given case p-value is less than critical value then we should reject the null hypothesis.

6 0
2 years ago
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