2 years ago

Find the exact value of tan(x + y) if (cscx=5/3 and cosy =5/13

Mathematics

1 answer:

attashe74 [19]2 years ago

8 0

Answer:

-63/16

Step-by-step explanation:

You might be interested in

Lydia was out at a restaurant for dinner when the bill came. Her dinner came to $30. After adding in a tip, before tax, she paid

Aloiza [94]

Answer:

15%

Step-by-step explanation:

34.50-30=4.50

10% of 30= 3

5%of 30 = 1.50

3+1.50=4.50

so 4.50 = 15%

7 0

2 years ago

Read 2 more answers

Determine the intercepts of the line. 7x– 5 = 4y – 6

Liula [17]

Answer:

See steps below:)

Step-by-step explanation:

5 0

2 years ago

Which of the inequalities represents the statement, "Two times a number x, less 15, is greater than or equal to 4 times the numb

alisha [4.7K]

Therefore, the best and most correct answer among the choices provided by the question is the fourth choice "15 - 2x ≥ 4y". I hope my answer has come to your help.

4 0

2 years ago

Read 2 more answers

Square root of 3x when x=1/9

yKpoI14uk [10]

Answer: $\sqrt[]{\frac{1}{3} }$

Step-by-step explanation:

$x=\frac{1}{9}$

$\sqrt[]{3x}$

$\sqrt[]{3(\frac{1}{9}) }$

$\sqrt[]{\frac{1}{3} }$

6 0

2 years ago

Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.

BabaBlast [244]

Answer:

Step-by-step explanation:

We want to solve the equation:

$x^2+2x+7=0$

Using the quadratic formula. The quadratic formula is given by:

$\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

In this case, a = 1, b = 2, and c = 7.

Substitute:

$\displaystyle x=\frac{-(2)\pm\sqrt{(2)^2-4(1)(7)}}{2(1)}$

Evaluate:

$\displaystyle x=\frac{-2\pm\sqrt{-24}}{2}$

Simplify the square root:

$\sqrt{-24}=\sqrt{4\cdot 6\cdot -1}=\sqrt{4}\cdot\sqrt{6}\cdot\sqrt{-1}=2i\sqrt{6}$

Hence:

$\displaystyle x=\frac{-2\pm2i\sqrt{6}}{2}$

Simplify:

$\displaystyle x=-1\pm i\sqrt{6}$

Hence, our solutions are:

$\displaystyle x=\left\{-1+i\sqrt{6}, -1-i\sqrt{6}\right\}$

Our answer is C.

3 0

2 years ago