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3 years ago

Plspls pls help

Mathematics

1 answer:

cupoosta [38]3 years ago

5 0

Answer:

x=-2, y=-3

Step-by-step explanation:

This is an easy one. You can eliminate the y-terms by adding the equations together. Then solve for x.

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I need help!!!!! 4. Determine 3 possible solutions to the inequality below

loris [4]

Answer:

5,6,7

Step-by-step explanation:

the unfilled circle means that you dony inclued 4, and since the blue line is going u the scale means it can be any number higher than 4

4 0

2 years ago

a tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an inital speed of 120 feet per second

balu736 [363]

Check the picture below.

$\bf ~~~~~~\textit{initial velocity}\\\\
\begin{array}{llll}
~~~~~~\textit{in feet}\\\\
h(t) = -16t^2+v_ot+h_o \\\\
\end{array} 
\quad 
\begin{cases}
v_o=\stackrel{\textit{initial velocity of the object}}{120}\\\\
h_o=\stackrel{\textit{initial height of the object}}{2}\\\\
h=\stackrel{}{\textit{height of the object at "t" seconds}}
\end{cases}
\\\\\\
h(t)=-16t^2+120t+2$

$\bf \textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{llll}
h(t)= &{{ -16}}t^2&{{ +120}}t&{{ +2}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)
\\\\\\
\left(-\cfrac{120}{2(-16)}~~,~~2-\cfrac{120^2}{4(-16)} \right)\implies \left( \cfrac{15}{4}~~,~~2+\cfrac{14400}{32} \right)$

$\bf \left( \cfrac{15}{4}~~,~~2+450 \right)\implies \left( \stackrel{seconds}{3\frac{3}{4}}~~,~~\stackrel{feet}{452} \right)$

7 0

3 years ago

Victor Malaba has a net income of $1,240 per month. If he spends $150 on food, $244 on a car payment , $300 on rent, and $50 on

stiv31 [10]

Answer:

40%

Step-by-step explanation:

The amount of income allocated to the items listed totals $744, so there is $496 he can spend on other things. As a percentage of income, that is ...

496/1240 × 100% = 40%

Malaba can spend 40% of his net income on other things.

3 0

4 years ago

Tell whether xy = 8 shows direct variation, inverse variation, or neither.

Nostrana [21]

Answer:

inverse

Step-by-step explanation:

y = k/x indicates inverse variation, which is the same as xy = k

in this particular problem, k = 8

4 0

3 years ago

In the diagram, how many circles are there for each square?<br> DA 1

Lemur [1.5K]

Answer:

Where is the figure or picture

3 0

4 years ago