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3 years ago

Select all pairs of congruent angles

Mathematics

1 answer:

aleksandr82 [10.1K]3 years ago

8 0

Answer:

1,4

2,3

1,6

6,7

5,8

5,2

1,6

7,2

8,1

3,6

4,5

1,5

2,6

3,7

4,8

Step-by-step explanation:

Alternate interior, exterior, vertical, and complemetary angles are congruent.

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4 years ago

The equations 3 x minus 4 y = negative 2, 4 x minus y = 4, 3 x + 4 y = 2, and 4 x + y = negative 4 are shown on the graph below.

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3 0

3 years ago

Read 2 more answers

X+y+3z=-16 x+y+7z=-32 x-8y-6z=11

GaryK [48]

x+y+3z=-16 ... (1)

x+y+7z=-32 ...(2)

x-8y-6z=11 ... (3)

Let's subtract equation (1) and (2) so that we can eliminate x and y. So,

x+y+3z=-16

x+y+7z=-32

____________________

(x-x)+(y-y)+(3z-7z)=(-16)-(-32)

0+0-4z=-16+32

-4z= +16

$\frac{-4z}{-4} =\frac{16}{-4}$ Dividing each sides by -4.

z=-4

Now plug in z=-4 in equation (2) and (3). So, by plug in -4 for z in equation (2) we will get

x+y+7(-4)=-32

x+y-28=-32

x+y=-32+28

x+y=-4 ....(equation (4)

Now let's plug into equation (3). So,

x-8y-6(-4)=11

x-8y+24=11

x-8y=11-24

x-8y=-13 ......... equation(5)

Now we have two equations (4) and (5) with two variables x and y which we can solve now.

We can eliminate y from equation (4) and (5) by making equal and opposite coefficient of y's. So, multiply equation (4) by 8.

(x+y=-4)x8

8x+8y=-32....... (6)

Now after adding equation (5) and (6) wewill get,

9x=-45

9x/9=-45/9

x=-5

Now we can plug in x=-5 and z=-4 in any equation to get the value of y. So, let's plug in to equation (1).

-5+y+3(-4)=-16

-5+y-12=-16

y-17=-16

y=17-16

y=1

So, x=-5, y=1 and z=-4

4 0

3 years ago

Read 2 more answers

Just want to know what is 21x+2

slavikrds [6]

Answer:

21x+2

Step-by-step explanation:

You don't know what the value of x is you can't solve the expression

8 0

3 years ago

Jada makes sparking juice by mixing 2 cups of sparkling water with every 3 cups of apple juice.

MatroZZZ [7]

Answer:

[1] 10

[2] 9

[3] j = 3/2 ⋅ s

Step-by-step explanation:

Jada makes sparking juice by mixing 2 cups of sparkling water with every 3 cups of apple juice.How much sparkling water does Jada need if she uses 15 cups of apple juice?

Answer = 10

Explanation:

Ratio for mixing 2 cups of sparkling water with every 3 cups of apple juice

2 : 3

Thus also means:

2/3 = x/15

Solve for x:

x = 10

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How much apple juice does Jada need if she uses 6 cups of sparkling water?

Answer = 9

Ratio for mixing 2 cups of sparkling water with every 3 cups of apple juice

2:3

Also means:

2/3 = 6/x

Solve for x

x = 9

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Let S represent the number of cups of sparkling water and J represent the number of cups of apple juice. Write an equation that shows how S and J are related. Use your answers from the previous question to assist you with your answer.

Answer = j = 3/2 ⋅ s

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~lenvy~

3 0

2 years ago

Select all pairs of congruent angles ​

Select all pairs of congruent angles