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skelet666 [1.2K]
3 years ago
5

(4x+2y=84 , 3x + 5y=126) If the system of equations is graphed in a coordinate plane, the coordinates (x, y) of the intersection

of the two lines are __________ .
Mathematics
1 answer:
pickupchik [31]3 years ago
4 0

x = 12 , y = 18    (12, 18) is the solution, intersection of the two lines.
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If angle 2 measures 155 degrees in the image below and what is the measurement of angle 1
Degger [83]
<h2>Answer:</h2>

<em>Angle 1 measures 25 degrees</em>

<h2>Explanation:</h2>

Hello! Remember you have to write complete questions in order to get good and exact answers. Here I'll assume the diagram shown below. In that figure, we know that:

\angle 1=? \\ \\ \angle 2=155^{\circ}

The figure shows that these two angles are supplementary, so they add up to 180 degrees. Therefore:

\angle 1+\angle 2=180^{\circ} \\ \\ Substituting \ \angle 2=155^{\circ}: \\ \\ \angle 1+155^{\circ}=180^{\circ} \\ \\ \\ Isolating \ \angle 1: \\ \\ \angle 1=180^{\circ}-155^{\circ} \\ \\ \boxed{\angle 1=25^{\circ}}

4 0
3 years ago
James is building a doll house that is proportional to his own house. He is using a scale of 0.5 inch = 1 foot. If the doll hous
Minchanka [31]
24.6 because 12.3 divided by 0.5 is 24.6
3 0
3 years ago
(a) Write an expression for the perimeter of
Archy [21]

Answer:

8x+2

Step-by-step explanation:

2(3x-1+x+2)=P

2(4x+1) = P

8x+2

7 0
3 years ago
Sergei buys a rectangular rug for his living room. He measures the diagonal of the rug to be 18 feet. The length of the rug is 3
blsea [12.9K]
So remember that the pythagorean theorem is a^2+b^2=c^2
c=18
legnth is 3 more than width
l=3+w
a=3+b
subsitute
(3+b)^2+b^2=18^2
expand
9+6b+b^2+b^2=324
subbtract 9 from both sides
6b+2b^2=313
subtract 313 from both sides
2b^2+6b-313=0
factor
use quadratic formula and get
b=11.1
subsitute
a=3+b
a=3+11.1
a=14.1
answer is 14.1 ft by 11.1 ft
8 0
3 years ago
Read 2 more answers
PPPPLLLLEEEEZZZZ HHHEEELLLLPPP!!!!!!!. When a number x is multiplied by 9, the result is 35.
timama [110]
The x value is 3.888888 (the eight repeats, goes on forever) hope this helps :)
8 0
3 years ago
Read 2 more answers
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