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2 years ago

A line passes through the points (7, 10) and (7,20). Which statement is true about the line

Mathematics

2 answers:

Sergeu [11.5K]2 years ago

6 0

Answer:

Step-by-step explanation:

20-10 / 7-7 = 10/0

The bottom number is called the denominator.

The denominator of a fraction cannot be zero.

Therefore the answer is the last one.

snow_tiger [21]2 years ago

6 0

Answer: Answer is D, is has no slope in the formula

Step-by-step explanation:

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Which of the lines graphed has a slope of -2 and a y intercept of 3?

Flura [38]

It's out of D or A I can't really see

3 0

2 years ago

The owner of a cattle ranch would like to fence in a rectangular area of 3000000 m^2 and then divide it in half with a fence dow

Reika [66]

If you notice the picture below, the amount of fencing, or perimeter, that will be used will be 3w + 2l

now $\bf \begin{cases}
A=l\cdot w\\\\\
A=3000000\\
----------\\
3000000=l\cdot w\\\\
\frac{3000000}{w}=l
\end{cases}\qquad thus
\\\\\\
P=3w+2l\implies P=3w+2\left( \cfrac{3000000}{w} \right)\implies P=3w+\cfrac{6000000}{w}
\\\\\\
P=3w+6000000w^{-1}\\\\
-----------------------------\\\\
now\qquad \cfrac{dP}{dw}=3-\cfrac{6000000}{w^2}\implies \cfrac{dP}{dw}=\cfrac{3w^2-6000000}{w^2}
\\\\\\
\textit{so the critical points are at }
\begin{cases}
0=w^2\\\\
0=\frac{3w^2-6000000}{w^2}
\end{cases}$

solve for "w", to see what critical points you get, and then run a first-derivative test on them, for the minimum

notice the $0=w^2\implies 0=w$ so. you can pretty much skip that one, though is a valid critical point, the width can't clearly be 0

so.. check the critical points on the other

8 0

2 years ago

4x + 11y = -3 and -6x = 18y - 6 (substitution method)

dolphi86 [110]

Answer:

-3 + -6= -9

because there is answer given

6 0

2 years ago

What is the minimum value of 2x + 2y in the feasible region?

Liono4ka [1.6K]

Find and graph the feasible region for the following constraints: x + y < 5. 2x<span> + y > 4 ... y = 10/3. x = 30/3 - 10/3 = 20/3. Intersects at (20/3, 10/3). -x + </span>2y<span> = 0. x - </span>2y = 0.

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2 years ago

Calculate the ratio of surface area to volume of an imaginary cubic cell measuring 4mm long on each side

Mkey [24]

Step-by-step explanation:

Surface area of cubic cell

$= 6(side)^{2} \\ = 6 \times {4}^{2} \\ = 6 \times 16 \\ = 96 \: {mm}^{2} \\ \\ volume \: of \:cubic \: cell \\ = {(side)}^{3} \\ = {4}^{3} \\ = 64 \: {mm}^{3} \\$

Ratio of surface area to volume of imaginary cubic cell

$= \frac{96}{64}\\ = \frac{3}{2}\\=3 : 2$

5 0

3 years ago

Read 2 more answers