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3 years ago

6

your friend claims that if a line has a slope that is less than 1, then any line perpendicular to it must have a positive slope.

Is your friend correct?

1 answer:

fomenos3 years ago

6 0

Answer:

No.

Step-by-step explanation:

A line with, say, a slope of 1/2 is still positive. a line with negative 1/2 would be perpendicular

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What is the sum of the polynomials?

ASHA 777 [7]

Answer:

$- 4 {x}^{2} - 11x + 13$

Step-by-step explanation:

$( - {x}^{2} + 9) + ( - 3 {x}^{2} - 11x + 4)$

$- {x}^{2} + 9 - 3 {x}^{2} - 11x + 4$

$- 4 {x}^{2} - 11x + 13$

6 0

2 years ago

The exponential function y= a(b)^x passes through the points (3,25) and (8,10). Which of the following is closest to the value o

Yuki888 [10]

If the exponential function $y=ab^x$ passes through the points (3,25) and (8,10), the value of b is 0.833

The given exponential equation is:

$y=ab^x$

The function passes through the points (3, 25) and (8, 10)

Substitute x = 3 and y = 25 into the function $y=ab^x$

$25=ab^3$ ............................(1)

Substitute x = 8 and y = 10 into the function $y=ab^x$

$10=ab^8$ .............................(2)

Divide equation (2) by equation (1)

$\frac{10}{25}=\frac{ab^8}{ab^3} \\\\0.4=b^5\\\\b=0.4^\frac{1}{5} \\\\b=0.4^{0.2}\\\\b=0.833$

Therefore, if the exponential function $y=ab^x$ passes through the points (3,25) and (8,10), the value of b is 0.833

Learn more on exponential functions here: brainly.com/question/12940982

6 0

3 years ago

1. What is the slope of the line tangent to the curve defined by y2 + xy - x2 = 11x at the point (2, 3)?

andreyandreev [35.5K]

Step-by-step explanation:

By using Implicit Differentiation,

d/dx (y² + xy - x²) = d/dx (11x)

d/dx (y²) + d/dx (xy) - d/dx (x²) = 11

2y * dy/dx + x * dy/dx + y - 2x = 11

dy/dx (2y + x) = 11 + 2x - y

dy/dx = (11 + 2x - y) / (2y + x).

At the point (2, 3), we have x = 2, y = 3.

=> dy/dx = (11 + 2(2) - (3)) / (2(3) + (2))

= 12 / 8 = 1.5.

P.S. Your question is weird because (2,3) is not on the graph, let me know what is the correct question thanks!

7 0

3 years ago

(7,-9) and (-3,-6)<br> Find the slope

kow [346]

Answer:

-3/10

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-6-(-9))/(-3-7)

m=(-6+9)/-10

m=3/-10

m=-3/10

7 0

3 years ago

A rectangle has an area of 7/8 square feet. If the rectangle has a width of 3/4 foot, what is the length of the rectangle?

blagie [28]

Answer:

i think its b

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers