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choli [55]
4 years ago
5

( 4x² - 5x + 1) + (-3x² + x +5)

Mathematics
2 answers:
Vesnalui [34]4 years ago
4 0

Answer:

x^2-4x+6

Step-by-step explanation:

(4x^2 -5x +1) +(-3x^2 +x+5)\\\\\mathrm{Remove\:parentheses}:\quad \left(a\right)=a\\=4x^2-5x+1-3x^2+x+5\\\\\mathrm{Group\:like\:terms}\\=4x^2-3x^2-5x+x+1+5\\\\\mathrm{Add\:similar\:elements:}\:4x^2-3x^2=x^2\\=x^2-5x+x+1+5\\\\\mathrm{Add\:similar\:elements:}\:-5x+x=-4x\\=x^2-4x+1+5\\\\\mathrm{Add\:the\:numbers:}\:1+5=6\\=x^2-4x+6

Daniel [21]4 years ago
4 0

Answer:

Step-by-step explanation:

4x^2 - 3x^2 - 5x + x + 1 + 5

x^2 - 4x + 6

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Last night, a basketball team made 12 shots. If their shooting percentage is 75%, how
kvv77 [185]

Answer:

16 shots

Step-by-step explanation:

Start by making a proportion.

We know that 75% is the same as 3/4.

The 12 lines up with the 3 because it is shots made, not total shots.

So now, the proportion should look like this: \frac{12}{x} =\frac{3}{4}

Cross multiply.

12 x 4 = 48

3 x x = 3x

Set equal and solve for x.

3x = 48

48 / 3 = 16

16 = x

6 0
3 years ago
Read 2 more answers
A fluid moves through a tube of length 1 meter and radius r=0.006±0.00025 meters under a pressure p=4⋅105±2000 pascals, at a rat
iris [78.8K]

Answer:

Maximum error for viscosity is 17.14%

Step-by-step explanation:

We know that everything is changing with respect to the time, "r" is changing with respect to the time, and also "p" just "v" will not change with the time according to the information given, so we can find the implicit derivative with respect to the time, and since

n = (\frac{\pi}{8}) (\frac{pr^4}{v})\\

The implicit derivative with respect to the time would be

\frac{dn}{dt}  = \frac{\pi}{8} ( \frac{r^4}{v} \frac{dp}{dt}  + \frac{4pr^3}{v}\frac{dr}{dt} )

If we multiply everything by    dt   we get  

dn  = \frac{\pi}{8} ( \frac{r^4}{v} dp  + \frac{4pr^3}{v}  dr})

Remember that  the error is given by   \frac{dn}{n}   therefore doing some algebra we get that

\frac{dn}{n}  =    4 \frac{dr}{r}  +  \frac{dp}{p}

Since,    r = 0.006   ,   dr = 0.00025 ,  p = 4*105   ,   dp = 2000  we get that

\frac{dn}{n} = 0.1714

Which means that  the maximum error for viscosity is 17.14%.  

5 0
3 years ago
Felix wrote several equations and determined that only one of the equations has no solution. Which of these equations has no sol
Ilya [14]

Answer:

A. 3(x-2)+x=4x+6 has no solution.

Step-by-step explanation:

We are provided the subsequent data in the question:

We evaluate the presented expressions to find which equations have no answer.

1)  Image of solved equation is added below.

2)  Image of solved equation is added below

3)  Image of solved equation is added below

4)  Image of solved equation is added below

Equation 1 has no solution.

3 0
3 years ago
Read 2 more answers
A factory bottles 511 bottles of juice in 7 minutes. Find the factory's unit rate of bottles per minute.
VashaNatasha [74]
511 divided by 7 is the unit rate. So a is how you get it but d is the answer
8 0
3 years ago
Rico buys a rectangular rug to put on his living room floor. The rug is 8feet long and 6 feet wide. What is the area of the floo
olga nikolaevna [1]

Answer:

48 square feet

Step-by-step explanation:

A = length x width. (A =lw)

So, 8 x 6 = 48

6 0
3 years ago
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