All categories

3 years ago

Help with 5,6,8 please

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

4 0

5. B, The answer is the only one that is false
6. G, Only reasonable answer
7. D, 3/5 is equivelant to 180/300

Hope this helps :D

You might be interested in

Simplify the expression. Quantity cosecant of x to the power of two times secant of x to the power of two divided by quantity se

Art [367]

Answer:

D. 1

Step-by-step explanation:

We have the expression, $\frac{\csc^{2}x\sec^{2}x}{\sec^{2}x+\csc^{2}x}$

We get, eliminating the cosecant function,

$\frac{\sec^{2}x}{\frac{\sec^{2}x}{\csc^{2}x}+1}$

As, sinx is reciprocal of cosecx and cosx is reciprocal of secx,

i.e. $\frac{\sec^{2}x}{\frac{\sin^{2}x}{\cos^{2}x}+1}$

i.e. $\frac{1}{\cos^{2}x}\times \frac{\cos^{2}x}{\sin^{2}x+\cos^{2}x}$

Since, we know that, $\sin^{2}x+\cos^{2}x=1$

Thus,

$\frac{1}{\cos^{2}x}\times \frac{\cos^{2}x}{\sin^{2}x+\cos^{2}x}=1$

So, after simplifying, we get that the result is 1.

Hence, option D is correct.

3 0

3 years ago

Calculate the area of a square with sides of 5 inches.

Luda [366]

Answer:

A = 25 in²

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Geometry

Area of a Square: A = x²

Step-by-step explanation:

Step 1: Define

Side length = 5 in

Step 2: Solve for A

Substitute: A = (5 in)²
Evaluate: A = 25 in²

And we have our final answer!

6 0

3 years ago

Read 2 more answers

Interval points less than -1

grin007 [14]

Ini bahasa apa ya saya tidak tahu

4 0

3 years ago

A laptop computer is purchased for $2700. Each year, it’s value is 70% of its value the year before after how many years will la

n200080 [17]

Answer: 5 years!

Reasoning:

Year 1: 2700 x .70=1890

Year 2: 1890 x .70= 1323

Year 3: 1323 x .70= 926.1

Year 4: 926.1 x .70= 648.27

Year 5: 648.27 x .70=453.79

3 0

3 years ago

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B6a%7D%7B%20%20-%201%7D%20%20%5Ctimes%20%5Cfrac%7B7%7D%7B%20-%209a%20%7B%7D%5E%7B2

lesya692 [45]

Answer:

14/3a²

Step-by-step explanation:

-6a × 7/-9a³

(7 × 6a) / 9a³

42a / 9a³

14a / 3a³

14/3a²

4 0

3 years ago