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cricket20 [7]
3 years ago
6

6x-5y= 0 4×-5y = -10​

Mathematics
1 answer:
ratelena [41]3 years ago
3 0

Answer:

the solution is (5, 6)

Step-by-step explanation:

Please reserve " × " for representing multiplication, and " x " as a variable name.

Starting with the system

6x-5y= 0  

4×-5y = -10​

multiply the 2nd equation by -1.  This results in the system

6x - 5y  = 0  

-4x + 5y = 10

and combining these two equations results in

​ 6x - 5y  = 0  

-4x + 5y = 10

------------------

2x         = 10, or x = 5.

Substituting 5 for x in the first equation, we get

6(5) - 5y = 0, or 5y = 30.  Then y = 6, and the solution is (5, 6).

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Setler [38]
For zeroes/roots r1,r2, r3
the facors of the polynomial is
(x-r1)(x-r2)(x-r3)

roots
-3,2,5
(x-(-3))(x-2)(x-5)
(x+3)(x-2)(x-5)
the coefient of the x term is -4
so mutliply the whole thing by 2

(2)(x+3)(x-2)(x-5)

expand
f(x)=2x^3-8x^2-22x+60
3 0
4 years ago
What is the solution to (x + 8) > (2x + 10)?
OverLord2011 [107]
The answer to this is x < -2
7 0
3 years ago
Read 2 more answers
I NEED HELP ASAP PLEASEEEE <br>Evaluate the expression for m = –38. <br>–23(m + 39) =
White raven [17]

Answer: -23

Step-by-step explanation:

Since we are given the value of m, all we have to do is to plug m into the expression and solve.

-23(-38+39)                  [parenthesis]

-23(1)                            [multiply]

-23

Now, we know that the expression is -23 when m=-38.

6 0
4 years ago
A ball is thrown upward with an initial velocity of 16 ft/sec from a height of 32 ft above the ground. The height, in feet, of t
GaryK [48]

Answer:  2 seconds.

Step-by-step explanation:

Given : A ball is thrown upward with an initial velocity of 16 ft/sec from a height of 32 ft above the ground.

The height, in feet, of the ball t sec after it is thrown can be represented by

s=-16t^2+16t+32.

When ball reaches the ground , s= 0.

\Rightarrow -16t^2+16t+32=0

Divide both sides by 16 , we get

-t^2+t+2=0\\\\\Rightarrow\ t^2-t-2=0\\\\\Rightarrow\ t^2-2t+t-2=0\\\\\Rightarrow\ (t-2)(t+1)=0 \\\\\Rightarrow\ t=2,-1

But time cannot be negative , so t= 2.

Hence , it will take 2 seconds for the ball to reach the ground.

8 0
3 years ago
Find the area of △ABC with side lengths b = 6 and c = 17, and included angle A = 135∘. Round your answer to the nearest tenth.
Levart [38]

Answer:

A=36.1\ units^2

Step-by-step explanation:

we know that

The area of a triangle applying the law of sines is given by the formula

A=\frac{1}{2}(b)(c)sin(A)

where

A is the included angle between the sides b and c

substitute the given values

A=\frac{1}{2}(6)(17)sin(135^o)=36.1\ units^2

4 0
3 years ago
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