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Mazyrski [523]
3 years ago
12

Find the equation of the line that is parallel to the line y=-3x-7 and passes through the point (1,2). Write an equation in slop

intercept form
Mathematics
1 answer:
marysya [2.9K]3 years ago
4 0

Answer:

y=-3x+5

Step-by-step explanation:

y=-3x-7

slope is -3

parallel lines have the same steepness, they have the same slope.  The slopes are equal.

y-y1=m(x-x1)

y-2=-3(x-1)

y-2=-3x+3

y=-3x+3+2

y=-3x+5

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Answer: She mixed up the slope and y-intercept when she wrote the equation in step 3.

Step-by- explanation:

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8 0
3 years ago
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Sierra's karate class lasts 56 day. how many weeks does the class last?​
UkoKoshka [18]

Answer: 8 Weeks

Step-by-step explanation:

One week is 7 days so if you divide 56 by 7 you get 8

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5 0
3 years ago
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Can someone please explain to me how to do this.
JulijaS [17]
Y = x² - 4x + 4
y = 2x - 4

Find intersection of L and C:
x² - 4x + 4 = 2x - 4
x² - 6x + 8 = 0
<span> (x - 2)(x - 4) = 0
x = 2 or x = 4

When x = 2 , y = 2(2) - 4 = 0
When x = 4, y = 2(4) - 4 = 4

Points of intersection = A(2, 0) and B(4, 4)

Find the length of AB:

</span>&#10;\text {Length of AB}=  \sqrt{(4-0)^2 + (4-2)^2} =  \sqrt{16 + 4} = \sqrt{20}  = 4.47 \text{ units}
<span>
Answer: 4.47 units

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4 0
3 years ago
Find the missing length indicated 144 and 60
Alexxandr [17]

The missing length in the right triangle as given in the task content is; 156.

<h3>What is the missing length indicated?</h3>

It follows from the complete question that the triangle given is a right triangle and the missing length (longest side) can be evaluated by means of the Pythagoras theorem as follows;

x² = 144² + 60²

x² = 20736 + 3600

x² = 24,336

x = √24336

x = 156.

Remarks: The complete question involves a right triangle and the missing length is the longest side.

Read more on Pythagoras theorem;

brainly.com/question/343682

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7 0
1 year ago
Solve the inequality and express your answer in interval notation. X^2-6x+7&lt;0
kakasveta [241]

Answer:

15

Step-by-step explanation:

2×6=8

8+7 =15

2+7 =9

9

8 0
3 years ago
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