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klemol [59]
2 years ago
7

Please help will mark brainliest!!! :D

Mathematics
1 answer:
olga nikolaevna [1]2 years ago
8 0

Answer:

Hello!!

The simplified version of the expression is...

\frac{2x(5x+1)}{4x-1}

Hope this helps!!

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What does pi r 2 mean
Neporo4naja [7]
Pi r² is circle's area expression.
So the r is radius,.

8 0
3 years ago
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Please help!!
ZanzabumX [31]

The two linear equations in two variable is:

12 x + 3 y = 40

7 x - 4 y = 38

(a) For a system of equations in two Variable

a x + by = c

p x + q y = r

It will have unique solution , when

\frac{a}{p}\neq \frac{b}{q}\neq\frac{c}{r}

As, you can see  that in the two equation Provided above

\frac{12}{7}\neq \frac{3}{-4}\neq \frac{40}{38}

So, we can say the system of equation given here has unique solution.

(b). If point (2.5, -3.4) satisfies both the equations, then it will be solution of the system of equation, otherwise not.

1. 12 x+3 y=40

2. 7 x-4 y=38

Substituting , x= 2.5 , and y= -3.4 in equation (1) and (2),

L.H.S of Equation (1)= 1 2 × 2.5 + 3 × (-3.4)

                             = 30 -10.20

                               = 19.80≠ R.H.S that is 40.

Similarly, L H S of equation (2)= 7 × (2.5) - 4 × (-3.4)

                                                  = 17.5 +13.6

                                                  = 31.1≠R HS that is 38

So, you can Write with 100 % confidence that point (2.5, -3.4) is not a solution of  this system of the equation.


5 0
2 years ago
What is the slope of the graph? please help ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
nignag [31]

Answer:

The slope of the graph is 3/5

Step-by-step explanation:

We know that slope is nothing but rise over run. In this equation, the spacing is 3 points different vertically and 5 horizontally. If we do Rise Over Run, we will get 3/5 as our answer.

5 0
3 years ago
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Solve 9x + 3 = -33 . PLEASE HELP ME IT WILL MAKE MY DAY​
ValentinkaMS [17]

:  \implies \sf 9x + 3 =  - 33

: \implies \sf 9x =  - 33 - 3

:  \implies \sf 9x =  - 36

:  \implies \sf x =  \dfrac{ - 36}{9}  =  - 4

\therefore  \sf x =  -4

8 0
3 years ago
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First to answer this (and correctly) get a brainliest and like
bezimeni [28]

Answer:

240 ft squared

Step-by-step explanation:

there are 3 rectangles so l*w for each of them

(12*6)+(13+6)+(5*6)

72+78+30

sa of a triangle is b*h divided by 2

5*12 divided by 2=30

there are two equal triangles so

180+30+30=240

8 0
3 years ago
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