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2 years ago

Find the difference. (12m + 1) - (5m - 4)

Mathematics

1 answer:

Law Incorporation [45]2 years ago

4 0

Answer:

7m + 5

Step-by-step explanation:

1) Simplify.

(12m + 1) - 1 (5m - 4) -> (12m + 1) - 5m + 4

2) Eliminate unnecessary parenthesis.

(12m + 1) - 5m + 4 -> 12m + 1 - 5m + 4.

3) Combine like terms.

12m - 5m = 7m, 4 + 1 =5 -> 7m + 5

The solution is 7m + 5

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0.3(5x - 1.5) = 7.5 x= ?

vfiekz [6]

Answer:

x=5.3

Step-by-step explanation:

.3(5x-1.5)=7.5

1.5x-.45=7.5

1.5x=7.95

x=5.3

6 0

3 years ago

Evaluate the indefinite integral. (Use C for the constant of integration.) sin(10x) 1 cos2(10x) dx

Schach [20]

Answer:

The result of the integral is $-\frac{\cos^3{10x}}{30} + C$

Step-by-step explanation:

We are given the following integral:

$\int \sin{(10x)}\cos^{2}{(10x)} dx$

I am going to solve by substitution, using $u = \cos{10x}$ , so $du = -10\sin{10x}dx, dx = -\frac{du}{10\sin{10x}}$ . So, we have

$-\frac{1}{10} \int u^2 du$

Which has the following result:

$-\frac{u^3}{30} + C$

Going back to x, the result of the integral is

$-\frac{\cos^3{10x}}{30} + C$

5 0

2 years ago

Convert into metre 81Km 30 m

aliya0001 [1]

Answer:81030m

Step-by-step explanation:1km=1000m, 81km=81000+30=81030m

5 0

3 years ago

Is 1/9 less than 1/8

Elden [556K]

Yes
For example: Cut an apple into 9ths and another one into 8ths. Which has a bigger slice?

5 0

3 years ago

2 times what eqvals 49

Naddik [55]

So what you can do is take 49 and divide it by 2 cause times is multiplication so if you take 49 and divide that by 2 you would get 24.5. Now if you plug so like 24.5 · 2 would would get 49.
~Good Luck~

4 0

3 years ago