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makkiz [27]
1 year ago
14

(Elimination Strategies) Which of these strategies would eliminate a variable in the system of equations? x - 2y = 115x + 3y = -

11Choose all that apply : A) Add the equations B) Multiply the top equation by 5 , then add the equations . C) Multiply the top equation by -5, then add the equations .
Mathematics
1 answer:
tester [92]1 year ago
5 0

As we can see the only one is the option C

-5*(x-2y=11)=-5x+10y=-55

5x+3y=-11

then we add the equations

13y=-66

y=-66/13=-5.07

as we can see C is the correct answer

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Find the area of the polygon shown. Enter the number into the box.<br> ft? 1 ft 4 ft 4 ft
SpyIntel [72]

Answer:

The area of the trapezium is 18 ft²

Step-by-step explanation:

Given;

Two parallel sides of the polygon as  follows;

The first parallel side = 1 ft + 4 ft = 5 ft

The second parallel side = 4 ft

If this polygon is rotated 90 degrees, it forms a trapezium with a height of 4 ft.

The area of a trapezium is calculated as;

A rea= \frac{1}{2} (sum \ of \ parallel \ sides) \times height\\\\Area = \frac{1}{2} (5 \ + \ 4) \times 4\\\\Area = 18 \ ft^2

Therefore, the area of the trapezium is 18 ft²

5 0
3 years ago
How do you do multi step inequalities
atroni [7]

Answer:

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Step-by-step explanation:

5 0
3 years ago
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Question 41 Unsaved
Lina20 [59]
There are no left or right vectors during free fall, so they are technically equal.

gravity is more powerful than air resistance, so it's vector will be longer.

The answers are the first option and third option.

6 0
4 years ago
WILL GIVE BRAINLIEST *NO LINKS*
77julia77 [94]

Answer:

2 out of 5

Step-by-step explanation:

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96/3=32

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<u>32/80</u>

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3 years ago
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aliina [53]
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The 3 is next to the 2
The 2 isn’t next to 1 or 4
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