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3 years ago

What is the value of 3x squared when x = 2?

Mathematics

2 answers:

KonstantinChe [14]3 years ago

7 0

Answer:

Step-by-step explanation:

$(3x)^{2}$ = $(3(2))^{2}$ =36

(OR)

3( $x^{2}$ )=3(4)=12

Its depend on your sentence structure, what u r asking!!

mixer [17]3 years ago

3 0

Answer:

$\boxed{\sf 12}$

Step-by-step explanation:

=> $3x^2$

Given that x = 2

=> $3(2)^2$

=> $3(4)$

=> 12

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4. Find the value of x in the right triangle below.<br> 60°

antiseptic1488 [7]

Answer:

Step-by-step explanation:

It is worthwhile memorizing the ratios of legs in a 30°–60°–90° triangle. Shortest to longest, the ratios are ...

1 : √3 : 2

Then the sides marked will have the ratio ...

6 : x = 1 : 2 = 6 : 12

x = 12

_____

You can also get there using trigonometry.

cos(60°) = 6/x

x = 60/cos(60° = 60/0.5

x = 12

7 0

2 years ago

Find the equation of the line that is perpendicular to y =

Rom4ik [11]

Assuming you meant y=3/4x-3, the answer is y=-4/3x-3

3 0

2 years ago

Read 2 more answers

Refer to the figure below to complete the following problem.

Romashka-Z-Leto [24]

Answer:

C. 30°

Step-by-step explanation:

8 0

3 years ago

Hi, can you help me answer this question, please, thank you!

frutty [35]

Given:

mean, u = 0

standard deviation σ = 1

Let's determine the following:

(a) Probability of an outcome that is more than -1.26.

Here, we are to find: P(x > -1.26).

Apply the formula:

$z=\frac{x^{\prime}-u}{\sigma}$

Thus, we have:

$\begin{gathered} P(x>-1.26)=\frac{-1.26-0}{1} \\ \\ P(x>-1.26)=\frac{-1.26}{1}=-1.26 \end{gathered}$

Using the standard normal table, we have:

NORMSDIST(-1.26) = 0.1038

Therefore, the probability of an outcome that is more than -1.26 is 0.1038

(b) Probability of an outcome that

4 0

1 year ago

Someone answer this please

irina [24]

Answer:

y = - 27/5

Step-by-step explanation:

4(3) - 5y = 39

12 - 5y = 39

-5y = 39 - 12 = 27

y = - 27/5

7 0

2 years ago