3 years ago

- 1 2/3 + (-2 1/6)

Mathematics

1 answer:

Marizza181 [45]3 years ago

6 0

-3.8333 roughly i think

You might be interested in

Simplify the expression 1/√(1-cos^2 x) . Remember cos x= 1/csc x

Cerrena [4.2K]

First, we are going to use the Pythagorean identity: $sin^2(x)+cos^2(x)=1$ to rewrite our expression. Solving for $sin^2(x)$ in our Pythagorean identity we get that $sin^2(x)=1-cos^2(x)$ , so we can rewrite our expression as follows:
$\frac{1}{ \sqrt{1-cos^2(x)} } = \frac{1}{ \sqrt{sin^2(x)} } = \frac{1}{sin(x)}$

Next, we are going to use the trig identity: $csc(x)= \frac{1}{sin(x)}$ to completely simplify our expression:
$\frac{1}{sin(x)} =csc(x)$

We can conclude that $\frac{1}{ \sqrt{1-cos^2(x)} }=csc(x)$

3 0

3 years ago

Alfred delivers two power of ten newspapers every week. How many newspapers does Alfred deliver in 14 weeks.

posledela

Answer:

14, 336 newspapers

Step-by-step explanation:

If he delivers 2^10 newspapers every week that will be 1,024 newspapers. In 14 weeks he'll deliver:

1,024 × 14 = 14, 336 newspapers

8 0

3 years ago

Please help me with this

Dimas [21]

Answer:

-9 3/4

Step-by-step explanation:

The last step is to simplify the fraction into a mixed one.

6 0

3 years ago

Read 2 more answers

I NEED IT NOW!!! I ALSO NEED YOUR WORK OF HOW YOU GET YOUR ANSWER !! THANK YOU!

Mars2501 [29]

Answer:

Solve the rational equation by combining expressions and isolating the variable

All real numbers

Interval Notation:

−∞,∞)

Step-by-step explanation:

3 0

3 years ago

Use f(x) = 2x-9 and g(x)=9-x^2 to evaluate g(f(3))

Keith_Richards [23]

Answer:

g(f(3)) = 0

Step-by-step explanation:

f(x) = 2x - 9

f(3) = 2(3) - 9

f(3) = -3

g(-3) = 9 - (-3)^2

g(-3) = 9 - 9

g(-3) = 0

8 0

3 years ago