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Novay_Z [31]
3 years ago
9

4 sin(2x) = 4 cos(x)

Mathematics
1 answer:
Virty [35]3 years ago
8 0
Its simple check symbolab.com

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13 1/10-7 9/10<br><br> i need help
a_sh-v [17]

Answer:

52/ 10 = 5 2/10 or 5 1/5

Step-by-step explanation:

first turn the mixed fractions into improper fraction

13 1/10= 131/10

7 9/10= 79/10

since the two fractions already have a common denominator just subtract

131 - 79 = 52

52/ 10 = 5 2/10 or 5 1/5

4 0
2 years ago
Read 2 more answers
Solve the differential equation.<br><br> (y^2 + xy^2)y' = 1
stira [4]
(y^2 + xy^2)y' = 1  \ \Rightarrow\ (y^2 + xy^2)\frac{dy}{dx}= 1  \ \Rightarrow\\ \\&#10;y^2(1 + x) \frac{dy}{dx} = 1  \ \Rightarrow\ y^2 dx = \frac{dx}{1 + x}\ \Rightarrow \\ \\&#10;\int y^2 dx =\int \frac{dx}{1 + x} \ \Rightarrow\ \frac{1}{3}y^3 = \ln|1+x| + C\ \Rightarrow \\ \\&#10;y^3 = 3 \ln|1 + x| + 3C\ \Rightarrow\ y = \sqrt[3]{3\ln|1+x| + K},\ \text{where $K = 3C$}&#10;
6 0
3 years ago
Need help ASAP PLEASEEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!
Alex17521 [72]
5(1)= 5; identity property of multiplication
(3+5)+0=(3+5); identity property of addition
[3(5)](4)=(3)[5(4)]; associative property of multiplication
3+5=5+3; commutative property of addition
3+(5+7)=(3+5)+7; associative property for addition

hope this helps :)
3 0
2 years ago
Read 2 more answers
I can Multiply a 11x6 matric by a 6x7 matrix. The resulting matrix will be ??? Can somebody help me
Bumek [7]

Answer:

The resulting matrix will be 11 * 7

Step-by-step explanation:

Given

Matrices 11 * 6 multiplied by 6 * 7

Required

The dimension of the resulting matrix

When a matrix a * b is multiplies by a matrix b * c, the resulting matrix will be: a * c

In this case:

a * b = > 11 * 6

b * c => 6 * 7

So, the resulting matrix will be:

a * c => 11 * 7

3 0
2 years ago
How do you solve this equation -6x + 7y =13 and -6x +8y =20 using elimination
ohaa [14]

Answer:

x=6,y= 7

Step-by-step explanation:

-6x +7y= 13

-6x+8y=20

-y = -7

divide through by -1

y =7

sub y= 7 in equation 1

then x= 6

8 0
3 years ago
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