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4 years ago

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Mathematics

1 answer:

MissTica4 years ago

5 0

The temperature must drop 12 degrees again, so I would pick -12.

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Why is x = 6 a solution to the proportion StartFraction 192/36=32/x?

mars1129 [50]

Answer:

Step-by-step explanation:

When you cross multiply 192 times 6 it equals 1152 and if you multiply 32 times 36 you get 1152 and 1152 is equal to 1152.

7 0

3 years ago

A 2,000 loan has an annual internet rate of 4.5% on the amount borrowed. How much time has elapsed in the interest is now $180?

Jlenok [28]

Answer:

2 years

Step-by-step explanation:

90 in 1 year, 180 in 2 years

6 0

4 years ago

What is the y intercept of the line? X=24,36,48 and y= -8, 1, 10

goldenfox [79]

Answer:

y intercept = - 40

Step-by-step explanation:

x 24 36 48

y -8 1 10

y = ax + b

a is the gradient (or slope).

b = y intercept.

a = (48-36) / (10-1) = 12/9

Rewrite to solve for b, which means it starts with b = ...

b = y - 12/9 * x

Substitute one point ( 24 , -8 )

b = -8 - (12/9 * 24)

b = y intercept = - 40

4 0

4 years ago

find the point-slope equation of the line perpendicular to the line y=2x+5 passing through the point (1,4). (please include solu

pishuonlain [190]

First off, let's keep in mind that perpendicular lines have negative reciprocal slopes, hmmm so what's the slope of y = 2x + 5?

well, notice, that equation is in slope-intercept form, thus $\bf y=\stackrel{slope}{2}x+5$ .

$\bf \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}}
{2\implies \stackrel{slope}{\cfrac{2}{1}}\qquad \qquad \qquad \stackrel{reciprocal}{\cfrac{1}{2}}\qquad \stackrel{negative~reciprocal}{-\cfrac{1}{2}}}$

so, we're really looking for the equation of a line whose slope is -1/2 and runs through 1,4.

$\bf (\stackrel{x_1}{1}~,~\stackrel{y_1}{4})\qquad \qquad \qquad 
slope = m\implies -\cfrac{1}{2}
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-4=-\cfrac{1}{2}(x-1)$

7 0

3 years ago

Help ASAP. 25 Points.<br><br> Find the length of the legs.

Snezhnost [94]

Your cheating in class I’m telling

4 0

3 years ago

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