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3 years ago

Someone please help me

Mathematics

1 answer:

LuckyWell [14K]3 years ago

3 0

It is a rectangle since all sides are even

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Find the equation of the line that is perpendicular to the line y = (-1/3)x -1 and passes through the point (1, 5)?

Anit [1.1K]

bearing in mind that perpendicular lines have negative reciprocal slopes, so

$\bf \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}~\hspace{10em}\stackrel{slope}{y=\stackrel{\downarrow }{-\cfrac{1}{3}}x-1} \\\\[-0.35em] ~\dotfill$

$\bf \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}} {\stackrel{slope}{-\cfrac{1}{3}}\qquad \qquad \qquad \stackrel{reciprocal}{-\cfrac{3}{1}}\qquad \stackrel{negative~reciprocal}{+\cfrac{3}{1}\implies 3}}$

so we're really looking for a line whose slope is 3 and runs through (1,5)

$\bf (\stackrel{x_1}{1}~,~\stackrel{y_1}{5})~\hspace{10em} slope = m\implies 3 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-5=3(x-1) \\\\\\ y-5=3x-3\implies y=3x+2$

4 0

3 years ago

F(x) = x4 – 15x2 + 10x + 24.

SIZIF [17.4K]

Answer:

The shape of this graph is similar to a U-shape, opening upward

Step-by-step explanation:

Since the coefficient of x^4 is positive and is 1, the function f(x) opens upwards.

5 0

3 years ago

The answer please please <br> A.45<br> B. 50<br> C.39.5<br> D. 47.5

7nadin3 [17]

Answer:

D. area=47.5

Step-by-step explanation:

3.5+5+7+32

8 0

3 years ago

Please help me I need to pass

laila [671]

I'll pick B Hope this helps

7 0

4 years ago

How many inches are in 2\1 2 feet?

mamaluj [8]

Answer:

30 inches

Step-by-step explanation:

1 ft= 12 inches

12×2= 24

1/2 of 12 is 6

24+6=30

30 inches

3 0

3 years ago

Read 2 more answers