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3 years ago

15

Cot theta is undefiend for theta

2 answers:

Naddika [18.5K]3 years ago

8 0

it's 0 and pi for APEXg

Elena-2011 [213]3 years ago

5 0

Cot theta is 1 over tan theta.The only way for 1/tan theta to be undefined is for tan theta = 0. - answers

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the measures of the side of a triangle are 4√2 cm, 4√2 cm qnd 8√2 cm. what is the perimeter of the triangle?

spin [16.1K]

Answer:

$16\sqrt{2}$

Step-by-step explanation:

Add up all the sides to get the perimeter:

$4\sqrt{2} + 4\sqrt{2} +8\sqrt{2} = 16\sqrt{2}$

8 0

3 years ago

Berto invested in a precious mineral. The value of the mineral tend to increase by about 11% per year. He invest $40,000 in 2015

stealth61 [152]

the difference from 40000 to the future value in 2020, namely 5 years later is simply the yield or interest amount.

$\bf ~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\\ P=\textit{original amount deposited}\dotfill & \$40000\\ r=rate\to 11\%\to \frac{11}{100}\dotfill &0.11\\ t=years\dotfill &5 \end{cases} \\\\\\ I=(40000)(0.11)(5)\implies I=22000$

5 0

3 years ago

Heather measures the temperature of her coffee to be 133.4 degrees fahrenheit. It is actually 145 degrees fahrenheit. What is th

zhenek [66]

Answer:

The percent error of Heather's calculation is <u>8%</u>.

Step-by-step explanation:

Given:

Heather measures the temperature of her coffee to be 133.4 degrees fahrenheit. It is actually 145 degrees fahrenheit.

Now, to find the percent error of Heather's calculation.

The temperature of coffee Heather measures = 133.4° F.

Coffee's actual temperature = 145° F.

So, to get the measurement in error we subtract the temperature of coffee Heather measures from coffee's actual temperature:

$145-133.4=11.6\°.$

Now, to get the percent error:

$\frac{11.6}{145}\times 100$

$=\frac{1160}{145}$

$=8\%.$

Therefore, the percent error of Heather's calculation is 8%.

5 0

3 years ago

Whats the ratio of 200 over 40 and 25 over x

otez555 [7]

I believe the answer is 5.

200 divided by 25 is 8

40 divided by 8 is 5

8 0

3 years ago

Factor the polynomial expression 4x3 - 4.

Sloan [31]

<h3>Answer: 4(x - 1)(x^2 + x + 1)</h3>

==================================================

Work Shown:

4x^3 - 4

4(x^3 - 1)

4(x - 1)(x^2 + x + 1)

In the last step, I used the difference of cubes factoring formula which is

a^3 - b^3 = (a - b)(a^2 + ab + b^2)

3 0

2 years ago