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).
Answer:
None of these choices are correct.
Step-by-step explanation:
Because half a number that will equal 35 would look like x/2 = 35
Therefore, none of the choices are correct
Answer:
A.) x=90°
Step-by-step explanation:
Note:
The triangle shown is an isosceles triangle, which means that it has 2 congruent sides (as shown by the small intersecting lines), and this also means that it has two congruent angles.
We are given an angle measure adjacent to one of the missing angles. These two form supplementary angles, which means that they're sum is equal to 180°, or a straight line. So, to find:
y is the unknown angle. Solve for y:
y is 45°. Since this and the other angle are congruent, add:
Note:
Triangles angles will always add up to a total of 180°.
To find the missing angle x°, use:
These are the angles in a triangle. Substitute any known values and solve:
The missing angle x° is 90°.
:Done
Answer:
this is the stuff i meed help on
Answer:
Answer:
27.44 square cm
Step-by-step explanation:
If the length of parallelogram is a and b and angle between side a and b is .
Then area of parallelogram =
Given side length 4 cm and 7 cm
angle between them = 100°
value of sin(100°) = 0.98
Thus, area of given parallelogram = 4*7*sin(100°) = 28*0.98 = 27.44
Thus, area of given parallelogram is 27.44 square cm.
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