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4 years ago

6

Are 12/20 and 22/30 equivalent

1 answer:

PolarNik [594]4 years ago

5 0

No they are not equivalent. 22/30 is greater
please mark brainliest :$

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As the limit of x goes to 3 from the left find the limit of (x/ sqrt x^2 -9)

Dimas [21]

$\displaystyle\lim_{x\to3^-}\frac x{\sqrt{x^2-9}}=\lim_{x\to3^-}\frac x{\sqrt{x^2}\sqrt{1-\frac9{x^2}}}=\lim_{x\to3^-}\frac x{|x|\sqrt{1-\frac9{x^2}}}$

Since $x>0$ , you have $|x|=x$ and the limand reduces to

$\displaystyle\lim_{x\to3^-}\frac1{\sqrt{1-\frac9{x^2}}}$

For $x>3$ , you have $\sqrt{1-\frac9{x^2}}>0$ since $\dfrac9{x^2}$ will always be smaller than 1, which means $\dfrac1{\sqrt{1-\frac9{x^2}}}\to+\infty$

8 0

4 years ago

Shirley estimated the length of a board to be 18 inches. The actual length is 23 inches. To the nearest tenth of a percent, what

artcher [175]

The percent error of Shirley's estimate is 21.74%

<h3>Calculating pecent error</h3>

Given the following parameters

Actual length = 23 inches
Estimated length = 18in

% error = actual-estimated/actual * 100

% error = 23-18/23 * 100

% error = 500/23

% error = 21.74%

Hence the percent error of Shirley's estimate is 21.74%

Learn more on percent error here: brainly.com/question/5493941

5 0

2 years ago

Read 2 more answers

A town B is 12km from another town A on a bearing of 47degree and another C is 8km from town B on a bearing of 124degree.how far

garri49 [273]

Answer:

Distance between A and C = 16km

Bearing of A from C = 257°

Step-by-step explanation:

please see photo for detailed analysis

6 0

2 years ago

(This is due by 11:59...I posted it a while ago but no reply)

Trava [24]

The kite is directly 35.707 yards high above Erika

Step-by-step explanation:

Given scenario forms a right triangle where the length of string is the hypotenuse and the distance between Mary and Erika is the base.

So

$H = 50\ yards\\B = 35\ yards$

We have to find the perpendicular

Using pythagoras theorem,

$H^2 = B^2 + P^2$

Putting the values

$(50)^2 = (35)^2 + P^2\\2500 = 1225 + P^2\\P^2 = 1275\\$

Taking square root on both sides

$\sqrt{P^2} = \sqrt{1275}\\P= 35.707$

Hence,

The kite is directly 35.707 yards high above Erika

Keywords: Triangle, Pythagoras

Learn more about triangles at:

#LearnwithBrainly

8 0

3 years ago

Combine the like terms to create an equivalent expression:<br> -49 - (-89) + 10

astraxan [27]

Answer:

60

Step-by-step explanation:

3 0

3 years ago