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Svetlanka [38]
3 years ago
8

Find the equation of the line perpendicular to y=-4x+3 that also intersects the point (8,1)

Mathematics
2 answers:
Oksana_A [137]3 years ago
8 0

Answer:

y= 1/4x -1, ?=1

Step-by-step explanation:

y= mx+b the slope-intercept form

y= -4x+3 the given line

perpendicular line will have a slope of -1/m, so it will be have m=1/4

The line will be:

  • y= 1/4x+b

As it passes through point (8,1),

  • 1= 1/4*8+b ⇒ b= 1- 2= -1

So the equation is:

  • y= 1/4x -1
mixer [17]3 years ago
5 0

Answer:

-1

Step-by-step explanation:

To find b, enter (x,y)=(8,1).

1 = 1/4(8) + b

1 = 2 + b

Subtract 2 on both sides ~

-1 = b

b = -1

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago
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frosja888 [35]

Answer:

1. \: 3i

2. option D

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4. option D

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Step-by-step explanation:

<h2>1. \:  \sqrt{ - 9}</h2>

\sqrt{ - 1(9)}

\sqrt{ - 1}  \times  \sqrt{  9}

i \times  \sqrt{9}

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<h2>2. \:  \sqrt{ - 8}</h2>

\sqrt{ - 1(8)}

\sqrt{ - 1}  \times  \sqrt{8}

i \times  \sqrt{8}

i \times  \sqrt{ {2}^{2} \times 2 }

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<h2>3. \:  \sqrt{ - 80}</h2>

\sqrt{ - 1}  \times  \sqrt{80}

i \times  \sqrt{80}

4i \:  \sqrt{5}

<h2>4. \:  \sqrt{ - 75}</h2>

\sqrt{ - 1}  \times   \sqrt{75}

i \times  \sqrt{75}

i \times  \sqrt{ {5}^{2} \times 3 }

5i \sqrt{3}

<h2>5. \:  \sqrt{ - 72}</h2>

\sqrt{ - 1}  \times  \sqrt{72}

i \times  \sqrt{72}

i \times ( {6}^{2}  \times 2)

6i \sqrt{2}

<h2>6.  \sqrt{ - 20}</h2>

\sqrt{ - 1}  \times  \sqrt{20}

i \times  \sqrt{20}

i \times  \sqrt{ {2}^{2}  \times 5}

2i \sqrt{5}

<h2>7. \:  \sqrt{ - 27}</h2>

\sqrt{ - 1}  \times  \sqrt{27}

i \times  \sqrt{27}

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<h2>8. \:  \sqrt{ - 12}</h2>

\sqrt{ - 1 \times 12}

i \times  \sqrt{12}

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<h2>9. \:  \sqrt{ - 125}</h2>

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<h2>10. \:  \sqrt{ - 180}</h2>

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<h3>Hope it is helpful...</h3>
5 0
3 years ago
Hộp đựng 3 bi đỏ, 5 bi trắng và 7 bi xanh lấy ngẫu nhiên 2 bi. Tính xác suất? a, Có 1 bi đỏ trong 2 bi lấy ra b, Có ít nhất 1 bi
Vikentia [17]

Answer:

a) 3C1 * 12 C1 / 15 C2

b)  1 - 12C2 / 15C2

Step-by-step explanation:

Được

Viên bi đỏ = 3

Viên bi trắng = 5

Viên bi xanh = 7

Hai quả bóng được rút ra một cách ngẫu nhiên

a) Có 1 bi đỏ

3C1 * 12 C1 / 15 C2

b) Có ít nhất 1 viên bi đỏ trong số 2 viên lấy ra.

Số kết quả của việc chọn hai quả bóng trong số 15 quả bóng = 15 C2

Số kết quả của việc chọn 0 quả bóng đỏ = 15C12

Xác suất chọn được ít nhất 1 viên bi đỏ = 1 - 12C2 / 15C2

5 0
3 years ago
Subtract the following polynomials
Olegator [25]

Answer:

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Simplify each term.

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Simplify by adding terms.

−3q²+7

2. (3x + 7x² - 6) - (5x² + x + 9)​

Simplify each term.

3x+7x²−6−5x²−x−9

Simplify by adding terms.

Tap for more steps...

2x²+2x−15

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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