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2 years ago

Tell me if I’m correct

Mathematics

1 answer:

VLD [36.1K]2 years ago

7 0

Answer:

Yah i think i remember doing this question once, it looks correct, i hope you do well on the test

Have a nice day!! :)

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When graphing a system of equations with INFINITE SOLUTIONS,

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Step-by-step explanation:

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2 years ago

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Which expression best estimates 6 and three-fourths divided by 1 and two-thirds?

bixtya [17]

Answer: The expression is 7/2.

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2 years ago

A candle in the shape of a circular cone has a base of radius r and a height of h that is the same length as the radius. which e

ladessa [460]

Answer:

$\frac{r(1-\sqrt{2})}{-3}$

Step-by-step explanation:

Volume of cone = $\frac{1}{3} \pi r^{2} h$

Since we are given that a circular cone has a base of radius r and a height of h that is the same length as the radius

= $\frac{1}{3} \pi r^{2} \times r$

= $\frac{1}{3} \pi r^{3}$

Surface area of cone including 1 base = $\pi r^{2} +\pi\times r \times \sqrt{r^2+h^2}$

Since r = h

So, area = $\pi r^{2} +\pi\times r \times \sqrt{r^2+r^2}$

= $\pi r^{2} +\pi\times r \times \sqrt{2r^2}$

= $\pi r^{2} +\pi\times r^2 \times \sqrt{2}$

Ratio of volume of cone to its surface area including base :

$\frac{\frac{1}{3} \pi r^{3}}{\pi r^{2} +\pi\times r^2 \times \sqrt{2}}$

$\frac{\frac{1}{3}r}{1+\sqrt{2}}$

$\frac{r}{3(1+\sqrt{2})}$

Rationalizing

$\frac{r}{3(1+\sqrt{2})} \times \frac{1-\sqrt{2}}{1-\sqrt{2}}$

$\frac{r(1-\sqrt{2})}{-3}$

Hence the ratio the ratio of the volume of the candle to its surface area(including the base) is $\frac{r(1-\sqrt{2})}{-3}$

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3 years ago

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I need help with this ^

Nady [450]

<h3>Answer is 20 </h3>

<h2>Please mark me as Brainliest ......</h2>

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3 years ago

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mrs_skeptik [129]

4x+2y=-16
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