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Anni [7]
3 years ago
9

Is (-3,1) a solution if the system? y = -x - 2 x + 5y = 2

Mathematics
1 answer:
Dominik [7]3 years ago
6 0

Answer:

Step-by-step explanation:

x + 5(-x - 2)= 2

x - 5x - 10 = 2

-6x - 10 = 2

-6x = 12

x = -2

y = 2 - 2 = 0

(-2, 0)

answer is no

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What is the value of m in the equation 4m + 2(m + 1) = 9m + 5
ratelena [41]
M=-1 

4m+2(m+1)=9m +5
4m+2m+2=9m+5
6m+2=9m+5
6m+2-6m= 9m+5-6m
2-5=3m+5-5
-3/3=3m/3
m=-1
3 0
3 years ago
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Given:
pychu [463]
We can use the SSS congruence theorem to prove that the two triangles in the attached figure are congruent. The SSS or side-side-side theorem states that each side in the first triangle must have the same measurement or must be congruent on each of the opposite side of another triangle. In this problem, for the first triangle, we have sides AC, CM, AM while in the second triangle we have sides BC, CM, and BM. By SSS congruent theorem, we have the congruent side as below:
AC = BC
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The answer is SSS theorem.
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3 years ago
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Suppose you can get a higher interest rate on your savings if you maintain a balance of at least $1000 in your savings account.
maksim [4K]
1058+44.50 =1102.5
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4 0
4 years ago
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3 points
kotegsom [21]

Answer:

<em>V = 65.9 cubic millimeters</em>

Step-by-step explanation:

<u>The Volume of a Right Circular Cone</u>

Given a right circular cone of radius r and height h, its volume is calculated as follows:

\displaystyle V=\frac{1}{3}\pi r^2h

The cone shown in the image has a radius of r=3 mm and a height of h=7 mm, thus the volume is:

\displaystyle V=\frac{1}{3}\pi\cdot 3^2\cdot 7

Taking pi as 3.14:

\displaystyle V=\frac{1}{3}3.14\cdot 3^2\cdot 7

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7 0
3 years ago
Help please I don't understand!!!
shusha [124]
A- 2b = 2  one of the 2 "A" most be negative so they can cancer each other 
-a- b = 6   after the "A" cancel each other add the -2b with -b = -3b, then add 2 
--------------    and 6 
    -3b=8    then you have to divide 8 by -3 = -2.6       -2.6 its b... now you have to solve for b       step  1.  a -2b = 2   step 2.   a -2(-2.6)=2     step 3   a -5.3 = 2  then subtract -5.3 with 2 so that going to be 2 + 5.3 =7.3 then divide by a 
final answer (-2.5,-7.3)
sorry its kinda hard to explained here, i hope you get the point :)


3 0
3 years ago
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