All categories

3 years ago

4. Solve the following equations for the variable. 3x + 9 = 54

Mathematics

2 answers:

Tanya [424]3 years ago

8 0

Answer: x = 15

Step-by-step explanation:

Gekata [30.6K]3 years ago

7 0

Answer:

x=15

Step-by-step explanation:

You might be interested in

DIRECTIONS: Use this information to answer Parts A and B.

asambeis [7]

Answer:

4630/130=35.6 so just round to 36 with a remainder of a few shirts

Step-by-step explanation:

6 0

3 years ago

The product of y squared and y cubed

fgiga [73]

Answer:

y^2*y^3

Step-by-step explanation:

Use the power of 5

4 0

3 years ago

Read 2 more answers

Which correct variables describes the slope?<br> A.X/Y<br> B.Y/X<br> C.W/Z<br> D.Z/W

dalvyx [7]

Answer:

Step-by-step explanation:

i took the test.

6 0

3 years ago

Calculus 2 Master needed, show steps with partial fraction decomposition <img src="https://tex.z-dn.net/?f=%5Cint%283x%5E2-26x%2

Vladimir79 [104]

Answer:

-ln|x−5| + 2 ln(x²+4) + 3 tan⁻¹(x/2) + C

Step-by-step explanation:

The fraction will be split into a sum of two other fractions.

The first fraction will have a denominator of x − 5. The numerator will the a polynomial of one less order, in this case, a constant A.

The second fraction will have a denominator of x² + 4. The numerator will be Bx + C.

$\frac{3x^{2}-26x+26}{(x-5)(x^{2}+4)}=\frac{A}{x-5} +\frac{Bx+C}{x^{2}+4}$

Combine the two fractions back into one using the common denominator.

$\frac{A}{x-5} +\frac{Bx+C}{x^{2}+4}=\frac{A(x^{2}+4)+(Bx+C)(x-5)}{(x-5)(x^{2}+4)}$

This numerator will equal the original numerator.

$A(x^{2}+4)+(Bx+C)(x-5)=3x^{2}-26x+26\\Ax^{2}+4A+Bx^{2}-5Bx+Cx-5C=3x^{2}-26x+26\\(A+B)x^{2}+(C-5B)x+(4A-5C)=3x^{2}-26x+26$

Match the coefficients.

$A+B=3\\C-5B=-26\\4A-5C=26$

Solve the system of equations.

$A=-1\\B=4\\C=-6$

So we can rewrite the integral as:

$\int {(\frac{-1}{x-5}+\frac{4x-6}{x^{2}+4}) } \, dx$

Solving:

$\int {\frac{-1}{x-5}\, dx + \int {\frac{4x}{x^{2}+4}} \, dx - \int {\frac{6}{x^{2}+4} } \, dx$

$-\int {\frac{1}{x-5}\, dx + 2\int {\frac{2x}{x^{2}+4}} \, dx - 6\int {\frac{1}{x^{2}+4} } \, dx$

$-ln|x-5| + 2ln(x^{2}+4) - 6(\frac{1}{2} tan^{-1}(\frac{x}{2} )) + C$

$-ln|x-5| + 2ln(x^{2}+4) - 3 tan^{-1}(\frac{x}{2} ) + C$

5 0

3 years ago

"After 8 seconds, Cannon Man was 4.92 feet off the ground."

Vitek1552 [10]

Answer:

f(8) = 4.92

Step-by-step explanation:

x = 8 sec

y= 4.92 ft

3 0

2 years ago