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3 years ago

Which expression is equivalent to 454•41/4 /1/2 4. 1/2

Mathematics

1 answer:

givi [52]3 years ago

8 0

Answer:

Step-by-step explanation:

if you work inside parentheses first you get:

4^3/2 ÷ 4^1/2 which is 4

4^1/2 = $\sqrt{4}$ which is 2

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Calculate 8 hours___ minutes

Yuliya22 [10]

Answer:

480

Step-by-step explanation:

8×60=480 minutes.

8 0

4 years ago

Write the equation of the line passing through the points (-4,-1) and (2,8)

klio [65]

<h3>Explanation:</h3>

Calculate the slope with two given coordinate points by using rise over run.

$m = \frac{y_2 - y_1}{x_2 - x_1}$

Let these points

$\begin{cases}(x_1, y_1) = ( - 4, - 1) \\ (x_2, y_2) = ( 2, 8) \end{cases}$

$m = \frac{8 - ( - 1)}{2 - ( - 4)} \\ m = \frac{8 + 1}{2 + 4} \Longrightarrow \frac{9}{6} \Longrightarrow \frac{3}{2} \\ m = \frac{3}{2}$

Slope-Intercept

$y = mx + b \\ m = slope \\ b = y - intercept$

Substitute the value of m in the equation.

$y = \frac{3}{2} x + b$

Substitute any coordinate points that are given or part of the graph in the equation.

$(x_, y) = ( - 4, - 1)$

$- 1 = \frac{3}{2} ( - 4) + b$

Solve the equation for b-term.

$- 1 = \frac{3}{ \cancel{2}} ( \cancel{ - 4}) + b\\ - 1 = 3( - 2) + b \\ - 1 = - 6 + b \\ - 1 + 6 = b \\ 5 = b$

Rewrite the equation by substituting the value of b in the equation.

$y = \frac{3}{2} x + 5$

<h3>Answer</h3>

$\large \boxed{y = \frac{3}{2} x + 5}$

If you have any questions related to the answer, feel free to ask via comment.

7 0

3 years ago

A ball is thrown from an initial height of 5 feet with an initial velocity of 32 ft/s. The height h (in feet) after t seconds is

Aleks [24]

Find the derivative and set equal to 0 (the speed of the object is zero when the object is at max height and s hanging direction)
-32t+32=0

So the object hits a max at t=1

Plug that into original equation and get h=21 feet

6 0

3 years ago

Can you guys help me find the greatest common factor of these monomials

NemiM [27]

Answer:

You greatest common factor is

$3t^{2}$

Step-by-step explanation:

You need to find a number and letter which goes into both monomials.

$6t^{3}z^{5}$ , $3t^{2}$

Split both monomials up, into each integer and letter.

INTERGERS: 6, 3

LETTER t: $t^{3}$ , $t^{2}$

LETTER z: $z^{5}$

3 goes into 6 and 3.

$t^{2}$ goes into $t^{3}$ and $t^{2}$ .

Nothing goes into $z^{5}$ and 0.

You greatest common factor is

$3t^{2}$

Therefore

$3t^{2} (tz^{5} , 1) = 3t^{3}z^{5} ,3t^{2}$

6 0

3 years ago

Read 2 more answers

HELP!!!!!

N76 [4]

Answer:

Okay so I did the problem and I think the answer might be B.

Step-by-step explanation:

I did the thing and she worked for like 5 hours so I am just guessing that B is the answer I do not know if its correct so I'm sorry!

7 0

3 years ago