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3 years ago

Which of the following is the point and slope of the equation y - 11 = 3(x + 13)?

2 answers:

4 0

The answer is A.

The equation simplifies to y=3x+50.
So, C is already not an option.

Now we just plug in points to see if the point works for the equation.

A-11=3(-13)+50
11=-39+50

11=11

Thus, this point falls on the line of this equation and is a point.

So, the answer is A.

I hope this helps!

kupik [55]3 years ago

3 0

Answer:

(-13, 11), 3.

Step-by-step explanation:

This equation is written in the point-slope form of a straight line:

y - y1 = m(x - x1) where m = the slope and (x1, y1) is a point on the line.

So comparing this with the given equation:

y - 11 = 3(x + 13),

we see that y1 = 11 and -x1 = 13 so x1 = -13 and m = 3.

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Pls help <br> (4z - 12) - 12z

Pavlova-9 [17]

Answer: the question can only be simplified to -8z-12 because there is no equal sign.

Step-by-step explanation:

(4z - 12) - 12z

-8z-12

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2 years ago

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Which equation best describes the pattern in the table below?

cupoosta [38]

Answer:

Step-by-step explanation:

The pattern in the table adds 1.50 for ever 15 minutes. That means per minute it adds $\frac{1.5}{15} =0.10$ or 10 cents. This means you multiply each minute by 0.10 to find the cost. This is the equation c = 0.10m.

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3 years ago

Which ratio is proportionate to 9/3

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Answer:

3/1

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3 years ago

caleb and emily are standing 100 yards from each other. caleb looks up at a 45 degree angle to see a hot air balloon. Emily look

Sunny_sXe [5.5K]

Check the picture below.

thus then

$\bf \begin{cases}
y=100-a\\
y=a\sqrt{3}
\end{cases}\implies 100-a=a\sqrt{3}\implies 100=a+a\sqrt{3}
\\\\\\
100=a(1+\sqrt{3})\implies \boxed{\cfrac{100}{1+\sqrt{3}}=a}
\\\\\\
\textit{what is the altitude \underline{y} then?}\qquad y=100-a
\\\\\\
y=100-\cfrac{100}{1+\sqrt{3}}\implies y\approx 63.39745962156~yards$

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3 years ago

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A biologist studied how cells grow by adding liquid protein to cell samples. She reported in her study that she divided 3/5 of a

r-ruslan [8.4K]

Answer: $\dfrac{1}{5}\text{ of an ounce.}$

Step-by-step explanation:

Given : A biologist studied how cells grow by adding liquid protein to cell samples.

She divided $\dfrac{3}{5}$ of an ounce of liquid protein evenly among 3 cell samples.

Here , total quantity of liquid protein = $\dfrac{3}{5}$ of an ounce

Total cell samples = 3

Now , Quantity of liquid protein given by her to each cell = (total quantity of liquid protein ) ÷ (3)

= $\dfrac{3}{5}\times\dfrac{1}{3}=\dfrac{1}{5}\text{ of an ounce}$ .

Hence, Quantity of liquid protein given by her to each cell = $\dfrac{1}{5}\text{ of an ounce.}$

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3 years ago