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3 years ago

These two rectangles are similar. Find the missing dimension. (I need an answer ASAP, I also need a step by step answer)

Mathematics

1 answer:

nevsk [136]3 years ago

7 0

20/5=4 so 5x4 which means 2x4=8 so x is 8 hopes this helps

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Consecutive terms are __________________. A. even B. terms that are next to each other C. terms added together D. the Fibonacci

Phoenix [80]

Terms that are next to each other

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3 years ago

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Write an equation for a function with the given characteristics. A cosine curve with a period of pi, and amplitude of 1, a left

Leto [7]

Answer:

y = cos (2x + 2π) - 5/2

Step-by-step explanation:

y = a cos (bx + c) +d

a = Amplitude =1

period = 2π/b =π

b= 2

phase shift c/b = π

c/2 =π

c =2π

vertical translation = 5/2 units

d = -5/2 downwards

therefore substituting the values

y=1 cos (2x +2π) - 5/2

y = cos (2x + 2π) - 5/2 ;equation for the function

8 0

3 years ago

The soccer team won 12 out of 14 games. If this rate continues, how many games will they win if they play a total of 21 games

Gwar [14]

If they won 12 out of 14 games that will be about 85 percent
i think your answer will be 18

3 0

4 years ago

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How do i find the value of x?

DiKsa [7]

Subtract the sum of the two angles from 180 degrees.

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3 years ago

The circumference of a sphere was measured to be 82 cm with a possible error of 0.5 cm. (a) Use differentials to estimate the ma

NeTakaya

Answer:

The Maximum error is $26cm^2$

Step-by-step explanation:

Given that the circumference of a sphere was measured to be 82 cm with a possible error of 0.5 cm

<h3>To find :</h3><h3>(a) Use differentials to estimate the maximum error in the calculated surface area. (Round your answer to the nearest integer.) $cm^2$ </h3>

Given circumference of a sphere=82 cm and possible error =0.5 cm

Error of the surface area is dA

Error of circumference is dC = 0.5 cm

We know that the formula for Circumference of a sphere is C=2πr units

Differentiating with respect to r

$dC = 2\pi dr$

$dr =\frac{dC}{2π}$

$=\frac{0.5}{2\pi}$ (∵ dC = 0.5 cm)

<h3>Since Area $A = 4\pi r^2$ square units</h3>

Differentiating with respect to r

$dA = 8\pi rdr$ square units

Since given C = 82 cm.and also C=2πr we have

$r=\frac{C}{2π}$

$=\frac{82}{2π}$

$r=\frac{41}{π}$

From that $dA = 8\pi rdr$

Substituting the values of r and dr in the above equation we get

$dA = 8\pi (\frac{41}{\pi}) (\frac{0.5}{2\pi})$

$=4(41)\times (\frac{0.5}{3.14})$

$=26.1146$

$dA=26cm^2$

∴ Maximum error is $26cm^2$

4 0

4 years ago