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3 years ago

Combining like terms of 10x - 3+ 11 - 2x + 3x, simplifies the expression to

Mathematics

2 answers:

lesya692 [45]3 years ago

8 0

Answer:

-9x+8

Step-by-step explanation:

balu736 [363]3 years ago

7 0

15x - 3+11 should be the answer

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Simplify 5x - 3 + 7x +1

liberstina [14]

Answer:

12x-2

Step-by-step explanation:

8 0

2 years ago

The estimated value of the integral from 0 to 2 of x cubed dx , using the trapezoidal rule with 4 trapezoids is

bulgar [2K]

The integral is approximated by the sum,

$\displaystyle\int_0^2f(x)\,\mathrm dx\approx\sum_{n=0}^4\frac12\times\frac{f(x_n)+f(x_{n+1})}2=\frac14\sum_{n=0}^3(f(x_n)+f(x_{n+1}))$

where $f(x)=x^3$ and $x_n=\dfrac12n$ , giving you

$\displaystyle\frac14\sum_{n=0}^3\bigg(\left(\frac n2\right)^3+\left(\frac{n+1}2\right)^3\bigg)$
$\displaystyle\frac1{32}\sum_{n=0}^3(n^3+(n+1)^3)$
$\displaystyle\frac1{32}\sum_{n=0}^3(2n^3+3n^2+3n+1)$

Faulhaber's formulas make short work of computing the sum. You have

$\displaystyle\sum_{n=0}^k1=k+1$
$\displaystyle\sum_{n=0}^kn=\frac{k(k+1)}2$
$\displaystyle\sum_{n=0}^kn^2=\frac{k(k+1)(2k+1)}6$
$\displaystyle\sum_{n=0}^kn^3=\frac{k^2(k+1)^2}4$

which gives

$\displaystyle\frac1{16}\sum_{n=0}^3n^3+\frac3{32}\sum_{n=0}^3n^2+\frac3{32}\sum_{n=0}^3n+\frac1{32}\sum_{n=0}^31$
$\displaystyle\frac{36}{16}+\frac{42}{32}+\frac{18}{32}+\frac4{32}$
$\implies\displaystyle\int_0^2x^3\,\mathrm dx\approx\frac{17}4=4.25$

4 0

3 years ago

-248.66 +___=544.12 plz help i dont know

Makovka662 [10]

-248.66 + x = 544.12

544.12 - (-248.66) = 792.78

-248.66 + 792.78 = 544.12

8 0

3 years ago

Read 2 more answers

Please help me!!!!! PLeASe Also I will be giving Brailiest

murzikaleks [220]

Answer:

x = 75

y = 105

Step-by-step explanation:

Remark

You can find y in two different ways.

One

You can recall that y is the sum of the 2 interior angles not connected to it. Those angles are called the remote interior angles. Or

Two

You can add the three angles to 180 and solve for x. Then since x and y are supplementary, you can find y.

Solution

One

y = 60 + 45

y = 105 Answer

Two

x + 60 + 45 = 180 All triangles have 180 degrees. Solve for x.

x + 105 = 180 Subtract 105 from both sides

x = 180 - 105 Combine

x = 75 Find an equation that relates x and y

x + y = 180 x and y are supplementary they add to 180

75 + y = 180 Subtract 75 from both sides.

y = 180 - 75 Combine

y = 105

7 0

3 years ago

Helpppp me please I forgot how to do this

galben [10]

Answer:

-11

Step-by-step explanation:

plz mark as brainliest.

5 0

2 years ago

Read 2 more answers

Combining like terms of 10x - 3+ 11 - 2x + 3x, simplifies the expression to​

Combining like terms of 10x - 3+ 11 - 2x + 3x, simplifies the expression to