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3 years ago

Which ordered pair is a solution of the system x + 2y < -2 and y <-3x + 4

Mathematics

1 answer:

kifflom [539]3 years ago

4 0

Where's the system? I can't answer your question without it.

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Which linear inequality is represented by the graph? y ≥ 1/3x – 4 y ≤ 1/3x – 4 y ≤ 1/3x + 4 y ≥ 1/3x + 4

VikaD [51]

Solid line...means equal sign is present.....shading below the line means less then....u have a y int at (0,-4)...u have a positive slope of 1/3

thats gonna be 2nd answer choice

7 0

3 years ago

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Find the value of c such that the equation x^2 - c = 0 has 12 and –12 as solutions.

Sonbull [250]

Answer:

c=144

Step-by-step explanation:

The given equation is $x^2-c=0$

If this equation has 12 and -12 as roots, then the roots must satisfy the equation.

We substitute x=12 to obtain

$12^2-c=0$

$144-c=0$

Solve for c to get:

$144=c$

This implies that:

$c=144$

We could have also substitute x=-12 to get the same result.

6 0

3 years ago

Find the equation, in slope-intercept form, of the line through the pair of points

sineoko [7]

Answer:

$y=4x-8$

Step-by-step explanation:

Find the slope using the slope formula: $\frac{y_2-y_1}{x_2-x_1}$ , m=4

Use any set of points you know to solve for b. (2, 0)

Pug in everything you know: 0=4(2)+b

You get: 0=8+b

Subtract 8 to get the b by itself. b=-8.

Now just plug in and you'll get the answer!

6 0

3 years ago

Please please help me. No links.

Troyanec [42]

Answer:

Angle p is equal to angle r due to common angles.

The figure is congruent by SSS axiom.

8 0

2 years ago

PLEASE HELP!!!

Novosadov [1.4K]

$\bf \qquad \qquad \textit{sum of an infinite geometric serie}
\\\\
S_n=\sum\limits_{i=1}^{\infty}\ a_1\cdot r^{i-1}\implies S=\cfrac{a_1}{1-r}\quad 
\begin{cases}
a_1=\textit{first term's value}\\
r=\stackrel{0\ \textless \ |r|\ \textless \ 1}{\textit{common ratio}}
\end{cases}$

$\bf \sum\limits_{n=1}^{\infty}~3\left(\frac{1}{4} \right)^{n-1}~~
\begin{cases}
a_1=3\\
r=\frac{1}{4}
\end{cases}\implies S=\cfrac{3}{1-\frac{1}{4}}\implies S=\cfrac{\quad 3\quad }{\frac{3}{4}}
\\\\\\
S=\cfrac{\underline{3}}{1}\cdot \cfrac{4}{\underline{3}}\implies S=4$

7 0

4 years ago

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