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Liono4ka [1.6K]

3 years ago

7

In ΔABC, if the length of sides a, b, and c are 3.5 centimeters, 5.5 centimeters, and 6 centimeters respectively, what is m∠C to

two decimal places

2 answers:

Tamiku [17]3 years ago

8 0

I beleive it could be <span>(13/77)=80.28 degrees but I am not so sure >~<</span>

Luba_88 [7]3 years ago

6 0

<span>C=arccos(13/77)=80.28 degrees
</span><span>Look at attachment. </span>

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Can anyone help me solve a trigonomic identity problem and also help me how to do it step by step?

dusya [7]

$\bf cot(\theta)=\cfrac{cos(\theta)}{sin(\theta)}
\qquad csc(\theta)=\cfrac{1}{sin(\theta)}
\\\\\\
sin^2(\theta)+cos^2(\theta)=1\\\\
-------------------------------\\\\$

$\bf \cfrac{cos(\theta )cot(\theta )}{1-sin(\theta )}-1=csc(\theta )\\\\
-------------------------------\\\\
\cfrac{cos(\theta )\cdot \frac{cos(\theta )}{sin(\theta )}}{1-sin(\theta )}-1\implies \cfrac{\frac{cos^2(\theta )}{sin(\theta )}}{\frac{1-sin(\theta )}{1}}-1\implies 
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7 0

3 years ago

The birth months of students in Miss Dismio's geography class are shown.

Setler79 [48]

This is very simple, you can use tally marks to find the amount of birthdays. Then divide it by 100. Good luck !

8 0

3 years ago

Can you solve some of these? Or all, whichever one you might know. Also explain please.

Rina8888 [55]

Here's number 5. If you need more explanation just let me know.

8 0

3 years ago

gladu [14]

Answer:

Carmen bought 5 pounds of coffee

Step-by-step explanation:

The cost of buying coffee is $8.44 per pound. Let us assume she bought x pound of coffee, this means that she spent $8.44x on coffee.

She went to the coffee store with $80 gift card and left with $37.80, this means that after spending $8.44x from the initial $80, she had $37.80. To find the number of pounds she bought, we are to use the following equation:

80 - 8.44x = 37.80

8.44x = 80 - 37.80

8.44x = 42.2

x = 42.2/ 8.44 = 5

x = 5 pounds.

Carmen bought 5 pounds of coffee

3 0

3 years ago