All categories

3 years ago

Which property is used in the problem below?

Mathematics

1 answer:

jok3333 [9.3K]3 years ago

3 0

Answer:

Step-by-step explanation:

What you are doing is removing the brackets. That shows up as multiplying both terms inside the brackets by the factor outside the brackets (2).

This is a classic example of the distributive property.

You might be interested in

A group of 9 friends went bowling. Each person pays the same amount to bowl several games and a $3 fee to rent

ruslelena [56]

Answer: Each friend would pay $15.

3 0

3 years ago

Read 2 more answers

HELP! Find the value of sin 0 if tan 0 = 4; 180 < 0< 270

BabaBlast [244]

Hi there! Use the following identities below to help with your problem.

$\large \boxed{sin \theta = tan \theta cos \theta} \\ \large \boxed{tan^{2} \theta + 1 = {sec}^{2} \theta}$

What we know is our tangent value. We are going to use the tan²θ+1 = sec²θ to find the value of cosθ. Substitute tanθ = 4 in the second identity.

$\large{ {4}^{2} + 1 = {sec}^{2} \theta } \\ \large{16 + 1 = {sec}^{2} \theta } \\ \large{ {sec}^{2} \theta = 17}$

As we know, sec²θ = 1/cos²θ.

$\large \boxed{sec \theta = \frac{1}{cos \theta} } \\ \large \boxed{ {sec}^{2} \theta = \frac{1}{ {cos}^{2} \theta} }$

And thus,

$\large{ {cos}^{2} \theta = \frac{1}{17}} \\ \large{cos \theta = \frac{ \sqrt{1} }{ \sqrt{17} } } \\ \large{cos \theta = \frac{1}{ \sqrt{17} } \longrightarrow \frac{ \sqrt{17} }{17} }$

Since the given domain is 180° < θ < 360°. Thus, the cosθ < 0.

$\large{cos \theta = \cancel\frac{ \sqrt{17} }{17} \longrightarrow cos \theta = - \frac{ \sqrt{17} }{17}}$

Then use the Identity of sinθ = tanθcosθ to find the sinθ.

$\large{sin \theta = 4 \times ( - \frac{ \sqrt{17} }{17}) } \\ \large{sin \theta = - \frac{4 \sqrt{17} }{17} }$

Answer

sinθ = -4sqrt(17)/17 or A choice.

4 0

3 years ago

Kacey is making a bracelet that is 8 inches long. She uses 1 green bead at each end of the bracelet. She also uses 1 green bead

Effectus [21]

Answer:

The answer would be C. 5

Step-by-step explanation:

5 0

3 years ago

Rashid said he can find 52 × 10 by adding a 0 to the end of 52 to get 520.

SCORPION-xisa [38]

Answer:

42.95×10=429.5

Step-by-step explanation:

He is wrong, he should move the point to the right

42.95×10=429.5

4 0

2 years ago

Plz answer me will mark as brainliest and will reported if wrong answer

Sergeu [11.5K]

Answer:

1,2,3

18=8×1 =

Step-by-step explanation:

Plz mark as brainliest and follow me plz

6 0

3 years ago