Rotation 90° clockwise about the origin

Mathematics

1 answer:

NeX [460]2 years ago

6 0

Can you tell me what the points are ? And which quadrant the points are in? Love 2 help :)

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The perimeter of an equilateral triangle is at most 72, what would this be as an inequality?

Reptile [31]

at most is either that number or less

so x<=72 would be the inequality

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4 years ago

Answers? Not sure!!!

kaheart [24]

Answer:

$-\frac{8}{45}$

Step-by-step explanation:

Multiply the numerator by the reciprocal of the denominator.

4/5( −2/9)

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3 years ago

The graph of a linear system is shown. What is the solution the linear system?

Mkey [24]

Answer:

y=3x-1 and y=3x+1

Step-by-step explanation:

y=mx+b form

m stands for the slope which is rise over run.

b stands for the y intercept. where the line intersects with the y axis.

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3 years ago

A line passes through (-7,-5) and (-5,4). Write an equation for the line in point-slope form. Rewrite the equation in standard f

pashok25 [27]

$\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&&(~ -7 &,& -5~) 
% (c,d)
&&(~ -5 &,& 4~)
\end{array}
\\\\\\
% slope = m
slope = m\implies 
\cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{4-(-5)}{-5-(-7)}\implies \cfrac{4+5}{-5+7}\implies \cfrac{9}{2}$

$\bf \stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-(-5)=\cfrac{9}{2}[x-(-7)]
\\\\\\
y+5=\cfrac{9}{2}(x+7)\impliedby \textit{now let's multiply both sides by }\stackrel{LCD}{2}
\\\\\\
2(y+5)=2\left[ \cfrac{9}{2}(x+7)\right]\implies 2y+10=9(x+7)
\\\\\\
2y+10=9x+63\implies \stackrel{standard~form}{-9x+2y=53}$

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4 years ago

I need your helpppppppppp

svp [43]

1) 10, 20, 30, 35, 40, 41, 42 Her total value of Zoe's coins is 42 cents.

2) 25, 35, 45, 50, 55 His total value of Marc's coins is 55 cents.

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3 years ago