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2 years ago

How do you do x√x = √216 you have to solve for x and it should equal 6

SAT

1 answer:

PIT_PIT [208]2 years ago

5 0

Answer:

$x \sqrt{x} = \sqrt{216}$

square both sides:

${(x \sqrt{x}) }^{2} = {( \sqrt{216}) }^{2}$

solve the roots:

$( {x}^{2} .x) = 216 \\ {x}^{3} = 216$

take a cube root on both sides:

$\sqrt[3]{ {x}^{3} } = \sqrt[3]{216}$

solve the cube root:

$x = 6$

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A child riding a bicycle at 15 m/s accelerates at 3. 0 m/s/s for 4. 0 s. What is the child's speed at the end of this 4. 0 s int

mamaluj [8]

Answer:

The final speed of bicycle would be 27 m/s².

Step-by-step explanation:

Given :

$\small\red\bull$ Initial velocity (u) = 15 m/s
$\small\red\bull$ Acceleration (a) = 3.0 m/s²
$\small\red\bull$ Time = 4 seconds

To Find :

$\small\red\bull$ Final velocity (v)

Using Formula :

$\longrightarrow{\pmb{\sf{v = u + at}}}$

$\small\blue\star$ v = final velocity
$\small\blue\star$ u = initial velocity
$\small\blue\star$ a = acceleration
$\small\blue\star$ t = time taken

Solution :

Substituting the values in the formula to find the final velocity :

$\longrightarrow{\sf{v = u + at}}$

$\longrightarrow{\sf{v = 15 + (3.0 \times 4)}}$

$\longrightarrow{\sf{v = 15 + (3 \times 4)}}$

$\longrightarrow{\sf{v = 15 +(12)}}$

$\longrightarrow{\sf{v = 15 +12}}$

$\longrightarrow{\sf{v = 27 \: {m/s}^{2}}}$

$\star{\underline{\boxed{\red{\sf{v = 27 \: {m/s}^{2}}}}}}$

Hence, the final speed of bicycle would be 27 m/s².

$\rule{300}{1.5}$

3 0

2 years ago

A waitress sold 20 ribeye steak dinners and 12 grilled salmon dinners, totaling $559.11 on a particular day. Another day she s

Alexus [3.1K]

Answer:

Ribeye steak dinner ≈ $16.01
Grilled salmon dinner ≈ $19.91

Explanation:

Number of ribeye steak dinners sold = x
Number of grilled salmon dinners sold = y

Create two equations showing the amount sold and earned each day:

$\left \{ {{20x+12y=559.11} \atop {29x+6y=583.72}} \right.$

Solve the system of equations:

$\left \{ {{20x+12y=559.11} \atop {29x+6y=583.72}} \right.\\\\=\left \{ {{20x+12y=559.11} \atop {29(2)x+6(2)y=583.72(2)}} \right.\\\\=\left \{ {{20x+12y=559.11} \atop {58x+12y=1167.44}} \right.\\\\(20-58)x+(12-12)y=559.11-1167.44\\\\-38x=-608.33\\\\x=\frac{-608.33}{-38} =16.01\\\\20x+12y=559.11\\20(16.01)+12y=559.11\\12y=559.11-20(16.01)\\12y=238.91\\y=19.91$

6 0

3 years ago

All of the following are good reasons to attend postsecondary institutions except:

Ksivusya [100]

The best answer to the question would be (A) longer average life span.

Though there is a correlation between life span and education levels, where the higher your education, the higher your life span, other factors influence how long you life, most notably, of course your fitness levels, health, and diet. Thus, if you want to live longer, it is better to invest your time and effort into those three things instead of attending a postsecondary institution.

8 0

3 years ago

Read 2 more answers

Identify and explain at least one inner conflict encountered by huck in chapters 14-16. use at least 50 words and include a spec

lions [1.4K]

The example of inner conflict encountered by Huck in chapters 16 is that His conscience troubles.

<h3>What is Huck's internal conflict in Chapter 16 about?</h3>

In Chapter 16, it tells that Huck's conscience troubles him a lot in the case of Him helping Jim escape from his “original owner,”

He knows what Miss Watson has done for Him and as such, this made him to have inner conflict.

Therefore, The example of inner conflict encountered by Huck in chapters 16 is that His conscience troubles.

Learn more about conflict from

brainly.com/question/24769299