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Sidana [21]
3 years ago
5

How do you multiply (2r^2 5r-1)(5r^2 2r-8)?

Mathematics
1 answer:
cluponka [151]3 years ago
4 0
Go on math papa 100r^(6)-90r^(3)+8
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109.06 in scientific notation is
kaheart [24]
The correct answer is 1.0906
6 0
3 years ago
Read 2 more answers
Write an equation in Standard Form of the line passing through (5, -4) with a slope of -2/5.
beks73 [17]

Answer:

The answer is

<h2>y =  -  \frac{2}{5} x - 2 \\</h2>

Step-by-step explanation:

To find an equation of a line when given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

where

m is the slope

( x1 , y1) is the point

From the question the points is (5, -4) and slope - 2/5

The equation is

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

We have the final answer as

y =  -  \frac{2}{5} x - 2 \\

Hope this helps you

7 0
3 years ago
In a regular triangle ABC with side 1, two squares MNKL, RKPT are drawn such that points M, L, R are on the side AC (the order o
Orlov [11]

Answer:

  • MN = (21 -6√3)/37 ≈ 0.286694
  • RK = (14√3 -12)/37 ≈ 0.331046

Step-by-step explanation:

In the attached figure, we have defined LM to be length x. Then the other lengths on side AC are ...

  AM = LR = x/√3

  RC = (2/√3)RK = (2/√3)(2/√3)x = 4/3x

Then the sum of lengths along AC is ...

  AC = AM +ML +LR +RC

  1 = x(1/√3 +1 +1/√3 +4/3) = x(7/3 +2/√3) = x(7√3 +6)/(3√3)

Then the value of x is ...

  x=\dfrac{3\sqrt{3}}{7\sqrt{3}+6}=\dfrac{3\sqrt{3}(7\sqrt{3}-6)}{(7\sqrt{3})^2-6^2}=\dfrac{3(21-6\sqrt{3})}{3(49-12)}\\\\\boxed{MN=\dfrac{21-6\sqrt{3}}{37}}\\\\RK=\dfrac{2\sqrt{3}}{3}MN\\\\\boxed{RK=\dfrac{14\sqrt{3}-12}{37}}

8 0
3 years ago
Solve for m.<br><br> –9 + 6m = –3m − 1 + 10m
vagabundo [1.1K]

Answer:

m = -8

Step-by-step explanation:

-9 + 6m = -3m - 1 + 10m

-8 + 6m = 7m

-8 = m

6 0
3 years ago
Read 2 more answers
-7 (3e-2f+4)+6e-2 can you please help me solve this?
Serjik [45]
-7(3e-2f+4)+6e-2 
(distribute the -7) 
-21e+14f-28+6e-2 
(combine and like terms)
answer = -15e+14f-30 
8 0
3 years ago
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