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3 years ago

A rectangle has a length of 2 6√ and width of 6√ . Find the perimeter of the rectangle.

Mathematics

2 answers:

Angelina_Jolie [31]3 years ago

8 0

L=2root6
B=root6

$\\ \rm\Rrightarrow Perimeter=2(L+B)$

$\\ \rm\Rrightarrow Perimeter=2(2\sqrt{6}+\sqrt{6})$

$\\ \rm\Rrightarrow Perimeter=2(3\sqrt{6})$

$\\ \rm\Rrightarrow Perimeter=6\sqrt{6}$

Elena L [17]3 years ago

6 0

Answer:

6sqrt(6)

BRAINLIEST, PLEASE!

Step-by-step explanation:

2sqrt(6) x 2 = 4sqrt(6)

sqrt(6) x 2 = 2sqrt(6)

4sqrt(6) + 2sqrt(6) = 6sqrt(6)

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The tangents to the curve with equation y = x^3-3x at the points A and B with x coordinates −1 and 4 respectively meet at the po

sladkih [1.3K]

Answer:

$\displaystyle C=\left(\frac{26}{9}, 2\right)$

Step-by-step explanation:

We need to find the equation of the tangent lines of Points A and B.

Differentiate the equation:

$\displaystyle \frac{dy}{dx}=3x^2-3$

Point A has an x-coordinate of -1. Hence, the slope of its tangent line is:

$\displaystyle \frac{dy}{dx}\Big|_{x=-1}=3(-1)^2-3=0$

Find the y-coordinate of Point A using the original equation:

$y(-1)=(-1)^3-3(-1)=2$

Hence, Point A is (-1, 2).

Thus, the tangent line at Point A is:

$y-2=0(x-(-1))$

Simplify:

$y=2$

Point B has an x-coordinate of 4. Hence, the slope of its tangent line is:

$\displaystyle \frac{dy}{dx}\Big|_{x=4}=3(4)^2-3=45$

Find the y-coordinate of Point B:

$y(4)=(4)^3-3(4)=52$

Thus, Point B is at (4, 52).

So, the tangent line at Point B is:

$y-52=45(x-4)$

Simplify:

$y=45x-128$

Point C occurs at the intersections of the tangent lines of Points A and B. Set the two equations equal to each other and solve for x:

$2=45x-128$

We acquire:

$\displaystyle x=\frac{26}{9}$

Since one of our equations is y = 2, the y-coordinate is 2.

Hence, Point C is:

$\displaystyle C=\left(\frac{26}{9}, 2\right)$

5 0

3 years ago

Read 2 more answers

35 divided by 97.3 =

nika2105 [10]

0.3597122302158273 is the answer

7 0

4 years ago

Read 2 more answers

Define Trapezium, kite, isosceles Trapezium

Lena [83]

A trapezium is a figure in which a pair of opposite sides parallel, A trapezium is called an isosceles trapezium if non parallel sides are equal,
Kite duel polygon

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3 years ago

In a survey of 2957 adults, 1455 say hey have started paying bills online in the least year construct a 99% confidence interval

Vikki [24]

Answer: 0.49 ± 0.0237

Step-by-step explanation: A interval of a 99% confidence interval for the population proportion can be found by:

$p_{hat}$ ± z. $\sqrt{\frac{p_{hat}(1-p_{hat})}{n} }$

$p_{hat}$ is the proportion:

$p_{hat}$ = $\frac{1455}{2957}$

$p_{hat}$ = 0.49

For a 99% confidence interval, z = 2.576:

0.49 ± 2.576. $\sqrt{\frac{0.49(1-0.49)}{2957} }$

0.49 ± 2.576. $\sqrt{\frac{0.49*0.51}{2957} }$

0.49 ± 2.576.(0.0092)

0.49 ± 0.0237

For a 99% confidence interval, the proportion will be between 0.4663 and 0.5137 or 0.49 ± 0.0237

7 0

3 years ago

If 3 bars of chocolate cost $15.00 ghana cedis how much will 7 bars cost ratio

Rudiy27

Answer:

7 chocolate bars will cost $35

Step-by-step explanation:

if 3 cost $15 then 1 bar would cost 5 dollars and 5x7=35

here is a ratio:

3 = 7

15 = 35

6 0

3 years ago