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3 years ago

What is the area of the parallelogram?

Mathematics

2 answers:

AURORKA [14]3 years ago

4 0

Answer:

base x height = area

6.9 x 11.4 = 78.66

D. is the answer

Hope this helps

Step-by-step explanation:

Kryger [21]3 years ago

3 0

Answer:

Step-by-step explanation:

A=bh

A=11.40*6.90

A=78.66 cm^2

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

8 0

3 years ago

Read 2 more answers

HELPPPPPPPPPPPP PLEASEEEEEEEEE!!!!!!!!

RSB [31]

Answer:

Step-by-step explanation:

a line adds up to 180 so 180-133=47

3 0

2 years ago

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A man buys an article for $600 and sells it for $710. what is his profit or loss<br><br>

ololo11 [35]

Answer:

Profit of $110

Step-by-step explanation:

$710-$600=$110

6 0

1 year ago

Question 28

alexandr402 [8]

Answer:

Given Rate of interest is r=8%=0.08

Principal Amount is A=5,000

Time is t years

Interest is compounded yearly twice ⟹n=2

Amount =P(1+

)

=5000×(1+

0.08

)

=5,408

(1.0816)

5000

5408

⟹t=1

7 0

2 years ago

What is the solution to the inequality.

Novosadov [1.4K]

Answer:

a. x<7 and x>-7

Step-by-step explanation:

√x²<√49

-7<x<7 hope this helps

7 0

1 year ago