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3 years ago

Which pair of angles are supplmentary?

Mathematics

2 answers:

GuDViN [60]3 years ago

7 0

Answer:

the pair that is supplementary are angles 2&3

the answer is a

olga55 [171]3 years ago

3 0

Answer:

1+2, 1+4, 2+1, 2+3, 3+2, 3+4, 4+1, 4+3, 5+6, 5+8, 6+5, 6+7, 7+8, 7+6, 8+5, 8+7

Step-by-step explanation:

To be supplementary is to be equal to 180 degrees.

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Show how to solve the problem 378 x 6 using place value with regrouping. Explain how you knew when to regroup.

KIM [24]

Answer

2,268

Explanation

By grouping 378 can be written as,

378 = 300 + 70 + 8

6× 378 = 6 × (300 + 70 + 8)

= (6×300) + (6×70) + (6×8)

= 1800 + 420 + 48

= 2,268

8 0

3 years ago

What type(s) of symmetry does this figure have?

NeTakaya

It has reflectional symmetry

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3 years ago

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What is the x intercept for 6x - 7y = 42

Rama09 [41]

Answer:

(7,0)

Step-by-step explanation:

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3 years ago

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Solve the system of equations.

tino4ka555 [31]

Answer:

(2, 7) or (-6, 1)

Step-by-step explanation:

We are given two equations:

$y=x+5$ ; and

$y = x^2+5x-7$

Since y is the subject for both the equations so we can put the values of y equal to each other to get:

$x+5=x^2+5x-7$

$x^2+5x-x-7-5=0$

$x^2+4x-12=0$

Factorizing the expression to get:

$x^2-2x+6x-12=0$

$x(x-2)+6(x-2)=0$

$(x-2) (x+6) = 0$

$x=2, x= -6$

Putting x = 2 and x = -6 in any of the equations to get the values of y:

$y=x+5$

$y =2+5$

$y=7$

and

$y =(-6)+5$

$y=1$

Therefore, solution to these equation is (2, 7) or (-6, 1).

5 0

3 years ago

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Davia draws a shape with 5 sides tow sides are each 5 inches long.tow other sides are each 4 inches long.the perimeter of the sh

Gekata [30.6K]

Perimeter = the sum of all sides
Because we know that 2 sides are 5 inches and that 2 other sides are 4 inches long, we can subtract this number from the total 27 to get the 5th side. 5+5+4+4 = 18 27-18= 9
The fifth side = 9 inches

7 0

3 years ago