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3 years ago

The line 2x + 3y = -6 intersects the x axis at (a,0) and the y axis at (0,b) what is a + b ?

1 answer:

3 0

2x + 3y = -6 (Subtract 2x from both sides)
3y = -2x - 6 (Divide both sides by 3 to isolate x) which will give you y = -2/3x - 2 and this graphed would cross the x-axis at (-3,0) and the y-axis at (0, -2). So a + b = -5

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kobusy [5.1K]

Answer:

181510

Step-by-step explanation:

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Round the answer down as you can't have 0.767 of a person.

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3 years ago

Increase 250ml by 86%

Alexandra [31]

250=100%
25=10%
12.5=5%
2.5=1%
25*8=200(80%)
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3 years ago

What number is 5.5% of 110

rodikova [14]

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Step-by-step explanation:

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2 years ago

Read 2 more answers

the price of the cell phone is expected to increase by 165% in September 2015. The current price of a cell phone is $62.80. What

Sladkaya [172]

Answer:

$166.42.

Step-by-step explanation:

We have been given that the price of the cell phone is expected to increase by 165% in September 2015. The current price of a cell phone is $62.80.

The price of cell phone in September 2015 will be $62.80 plus 165% of $62.80.

$\text{The predicted cost of a cell phone in September 2015}=\$62.80+(\frac{165}{100}*\$62.80)$

$\text{The predicted cost of a cell phone in September 2015}=\$62.80+(1.65*\$62.80)$

$\text{The predicted cost of a cell phone in September 2015}=\$62.80+\$103.62$

$\text{The predicted cost of a cell phone in September 2015}=\$166.42$

Therefore, the predicted cost of a cell phone in September 2015 will be $166.42.

4 0

2 years ago

I have <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bdx%7D%7Bdt%7D%20%3D%20%20%5Cfrac%7B5%7D%7Bx%7D%20" id="TexFormula1" title=

mojhsa [17]

$\bf \cfrac{dx}{dt}=\cfrac{5}{t}\quad ,\quad x(0)=7\to 
\begin{cases}
f(t)=0\\
t=7
\end{cases}\\\\
-----------------------------\\\\
\displaystyle \int \cfrac{5}{t}\cdot dt\implies 5\int \cfrac{1}{t}\cdot dt\implies 5ln|t|+C= f(t)
\\\\\\
\textit{now, we know when f(t)=0, t=7}\implies 5ln|7|+C=0
\\\\\\
C=-5ln(7)
\\\\\\
thus\implies \boxed{5ln|t|-5ln(7)=f(t)=x}$

notice |7| 7 is positive, so we can simply remove the bars and use 7 by itself

6 0

2 years ago