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omeli [17]
3 years ago
11

Solve the system of linear equations by elimination. x+y=3 x−y=1

Mathematics
1 answer:
DedPeter [7]3 years ago
6 0
This is easy because they y's will cancel out. I love this method it's the easiest one out of substitution, and graphing. 

So the Y's will cancel out an you will get x=2. Then you plug the 2 in for x in the first equation. so it will 2+y-3. You subtract 2 from both sides to get y=1.

So the ordered pair is(2,1)   :)
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I^333 simplified. pls answer
Oduvanchick [21]

Given:

i^{333}\begin{gathered} i^{332}i \\  \\ (i^4)^{83}i \end{gathered}

Solving further:

\begin{gathered} \text{ Where:} \\ i^4=1 \\  \\ (1)^{83}i \\  \\ =1i \\  \\ =i \end{gathered}

ANSWER:

i

7 0
1 year ago
The isosceles trapezoid is part of an isosceles triangle with a 36° vertex angle. What is the measure of an acute base angle of
alexandr402 [8]
The answer is D) 72, 108

First you have to find out the measure of the two other angles in the triangle. Those two angles will be equivalent.

Because the sum of all three angles in a triangle is 180, you subtract 36 from it (180 - 36 = 144) then divide by 2 (144/2 = 72).

So, the two angles at the bottom of the triangle are each 72. Because those angles are supplementary to the angles at the top of the trapezoid, you subtract 72 from 180 (180 - 72 = 108).

108 + 108 = 216

The sum of all the angles in a trapezoid is 360, so subtract 216 from 360 (360 - 216 = 144) then divide by 2 (144/2 = 72)
6 0
3 years ago
Kate can mow lawns at a constant rate of 4/5 lawns per hour. How many lawns can Kate mow in 20 hours?
weqwewe [10]

Answer:

16 lawns

Step-by-step explanation:

set up a proportion:

(4/5 ÷ 1) = (x÷20)

cross-multiply:

5x = 80

x = 16

8 0
3 years ago
Please help me answer this ​
jonny [76]
The answer is 112 im pretty sure!
4 0
3 years ago
What is the scale factor of point E (original point) to point F (new point) with P as the center of dilation.
babunello [35]

Answer:

Answer is last alternative

scale factor (2)

8 0
2 years ago
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