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netineya [11]
3 years ago
8

Solve the system of equations using (a) substitution and (b) Elimination

Mathematics
1 answer:
Oxana [17]3 years ago
4 0

Answer:


Step-by-step explanation:

huh i think the answer is 9


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Step-by-step explanation:

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Step-by-step explanation:

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-5 (-1 + 6)need help ​
suter [353]

Answer:

-25

Step-by-step explanation: When you multiply to negatives together you get a positive thus being shown in the problem -5 times -1 =5 then you multiply 6 times -5 and whenever you multiply a positive number by a negative you'll always get a negative number so 6 times -5 =-30 then you add 5 and -30 and you get -25. I hope this is right :D

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Two trapeziums are similar, thee area of one of the trapezium is 4times that of the other. Determine the ratio of the perimeter
Stolb23 [73]

Answer:

The ratio of the perimeters of the two trapezium is 2

The ratio of the corresponding sides of the two trapezium is 2

Step-by-step explanation:

The given parameters in the question are;

Two trapeziums are similar

The area of one trapezium = 4 × The area of the other trapezium

Let, A₁, and A₂ represent the area of the two trapeziums, we have

A₁ = 4 × A₂

∴ A₁/A₂ = 4

Given that ratio of areas = (Ratio of sides)²

Ratio of sides = Ratio of perimeter

∴ Ratio of areas = (Ratio of perimeter)²

Therefore, given that the ratio of the areas of the two trapeziums A₁/A₂ = 4, we have;

Ratio of areas = 4 = (Ratio of sides)²

The ratio of the corresponding sides = √4 = 2

The ratio of the corresponding sides = 2

Ratio of areas = 4 = (Ratio of perimeter)²

The ratio of the perimeter = √4 = 2

The ratio of the perimeter = 2

3 0
3 years ago
The table and graph both reprsent the same relationships which equation also represents that eqaution
alexandr1967 [171]

Answer:

sorry i need to unlock ads

Step-by-step explanation:

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