Please help! It would mean a lot and thanks! :)

Mathematics

1 answer:

notsponge [240]3 years ago

7 0

To add 1/2 and 5/12, make both fractions have the same denominator:

1/2 is the same as 6/12, so 6/12+5/12=11/12

Thus, B is right.

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HELP ASAP PLZ 39 POINTS<br> Find x, y, u, v

Ad libitum [116K]

Answer:

x = 9; y = 12; u = 24; v = 32

Step-by-step explanation:

The corresponding sides of similar triangles are in the same ratio to each other.

3/5 = (3 + x)/20 Multiply each side by 20

20×3/5 = 3 + x

12 = 3 + x Subtract 3 from each side

x = 9

=====

4/5 = (4 + y)/20 Multiply each side by 20

20×4/5 = 4 + y

16 = 4 + y Subtract 4 from each side

y = 12

=====

3/5 = (3 + x + u)/60 Multiply each side by 60

60×3/5 = 3 + x + u

36 = 3 + x + u Insert the value of x

36 = 3 + 9 + u

36 = 12 + u Subtract 12 from each side

u = 24

=====

4/5 = (4 + y + v)/60 Multiply each side by 60

60×4/5 = 4 + y + v

48 = 4 + y + v Insert the value of y

48 = 4 + 12 + v

48 = 16 + v Subtract 16 from each side

v = 32

x = 9; y = 12; u = 24; v = 32

5 0

3 years ago

Write an equation in point-slope form for the line that passes through each point with the given slope.

castortr0y [4]

$\bf (\stackrel{x_1}{-3}~,~\stackrel{y_1}{-4})~\hspace{10em} \stackrel{slope}{m}\implies 0 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-4)}=\stackrel{m}{0}[x-\stackrel{x_1}{(-3)}]\implies y+4=0(x+3) \\\\\\ y+4=0\implies y=-4$