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Alik [6]
3 years ago
8

X +2y =6 2x - 3y =26 solve each system. Tell how many solutions each system has

Mathematics
1 answer:
valina [46]3 years ago
4 0
(10, -2)
X+2y=6
2x-3y=26

X=6-2y
2x-3y=26
Solve the y
2(6-2y)-3y=26
Y= -2
X= 6-2•(-2)
Solve the x
X=10
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If x-2y=6 and x+y=10.Find 2x+2y.
Snezhnost [94]

Answer:

20

Step-by-step explanation:

x-2y=6 and x+y=10

Multiply the second equation by 2

2x+2y = 20

8 0
3 years ago
The hypotenuse of a 45°-45°-90° triangle measures 4 cm. What is the length of one leg of the triangle
artcher [175]
The angles of the triangle are given as to have measures of <span>45°-45°-90°. This entails that the triangle is an isosceles triangle where the 2 legs of the triangle are of equal length. We calculate as follows:

c</span>² = a² + b²

c² = 2a²

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a = 2√2

Hope this answers the question. Have a nice day.
4 0
4 years ago
Read 2 more answers
What do the differences between the points (as shown on the graph) represent?
pishuonlain [190]

Answer:

They represent the rise and run of the graph.

Step-by-step explanation:

The difference between the x-axis of the points represents the "run" of the graph (or how much you should run along x-axis to get to the next point.)

The difference between the y-axis of of the points represents the "rise" of the graph (or how much you should rise up the y-xis to get to the next point).

The ratio of rise to run is the slope of the graph, which tells us  how many steps should we take on the y-axis for every step we move forward on the x-axis.

8 0
4 years ago
Question 19 of 28
Goryan [66]

Answer:

BC^2=10^2+30^2

Step-by-step explanation:

  • P=10
  • B=30

Using pythagorean theorem

\\ \sf\longmapsto BC^2=10^2+30^2

\\ \sf\longmapsto BC^2=100+300

\\ \sf\longmapsto BC^2=400

\\ \sf\longmapsto BC=\sqrt{400}

\\ \sf\longmapsto BC=20

8 0
3 years ago
Let f(x) = 6x2 + 5 and g(x) = 3x - 5. Find g(f(0)).<br> A) 10 <br> B) 75 <br> C) 90 <br> D) 155
Kitty [74]

Answer:

A

Step-by-step explanation:

evaluate f(0) then substitute value into g(x)

f(0) = 0 + 5 = 5

g(5) = (3 × 5) - 5 = 15 - 5 = 10 → A


8 0
3 years ago
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