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Olegator [25]
3 years ago
11

6) 4n - 8 = -2n + 5n 7. 197=8(1-4a)+5a

Mathematics
2 answers:
Mashutka [201]3 years ago
3 0

Answer:

6) n = 8

7) a = 32

malfutka [58]3 years ago
3 0

Answer:

6 is 8

7 is -7

Step-by-step explanation:

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A line goes through the point (6,-2) and has a slope of -3. What is the value of a if the point (a,7) lies on the line?​
Vikki [24]

Answer:

<h2>a = 3</h2>

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

m =  \frac{ y_2 - y _ 1}{x_ 2 - x_ 1}  \\

From the question the slope is - 3

To find the value of a we have

- 3 =  \frac{7 -  - 2}{a - 6}  \\  - 3 =  \frac{7 + 2}{a - 6}  \\  - 3(a - 6) = 9 \\  - 3a + 18 = 9 \\  - 3a = 9 - 18 \\  - 3a =  - 9

Divide both sides by - 3

\frac{ - 3a}{ - 3}  =  \frac{ - 9}{ - 3}  \\

We have the final answer as

<h3>a = 3</h3>

Hope this helps you

3 0
3 years ago
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Determine if the two figures are congruent and explain your answer.
Burka [1]
Answer: Yes they are

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How does a digit in the ten thousand place compare to a digit in the thousand place?
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The digit in the ten thousands place is ten times larger then the digit in the thousands lace
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If Rocky flips two coins 25 times, about how many times can he expect to get heads on both coins? 3 times 6 times 12 times 18 ti
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12 times. 25/2= 12.5
6 0
4 years ago
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1.
nika2105 [10]

If two parallel lines are cut by a transversal, then the pairs of corresponding angles are congruent.

Value of X is  9 and  Angle 6 is  79°

If two parallel lines are cut by a transversal, then the pairs of corresponding angles are congruent.

If two parallel lines are cut by a transversal, then the pairs of alternate interior angles are congruent.

If two parallel lines are cut by a transversal, then the pairs of alternate exterior angles are congruent.

Since, angle 1 and angle 4 are vertically opposite angles . Hence, these are equal.

∠1 = ∠4 = 11x + 2

Similarly, ∠6 and ∠7 are vertically opposite angles.

Thus,  ∠6 = ∠7 = 8x + 7

If two parallel lines are cut by a transversal, then the sum of interior angles on one side is equal to 180 degree.

Therefore,   ∠4 + ∠6 = 180

                 11x + 2 + 8x + 7 = 180

                  19x + 9 = 180

                  19x = 171

                   x = 9

Value of angle 6 = value of angle 7

                           = 8x + 7

                        = 8 (9) + 7

                        = 79 Degree

Learn more:

brainly.com/question/19670823

3 0
2 years ago
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