Remember, the exact value cannot involve any rounding or estimates. Now, let's solve this problem. First, we have to translate it into an expression:

√72 - √8 + √128     separate the terms into square roots

√36·2 - √4·2 + √64·2    square root the terms that you can

6√2 - 2√2 + 8√2 they have like radical terms, so combine the terms

6 - 2 + 8 = 12 the coefficients are 12 when combined

12√2    this is the EXACT VALUE of the expression

Hope this helps!

3 0

4 years ago

A player kicks a soccer ball off of the ground. The height of the ball is modeled by the equation h(t)=-\frac34\left(t-4\right)^

Aneli [31]

Answer:

Step-by-step explanation:

We can solve this in either of two approaches: Mathematically or Graphically.

<u>Mathematically</u>

y=-(3/4)(x-4)^2+12 where y is the height of the ball, and x is the time, in seconds.

We want to know how many seconds for the height to be 0, so y=0.

0 = -(3/4)(x-4)^2+12

-12 = -(3/4)(x-4)^2

12*(4/3) = (x-4)^2

16 = (x-4)^2

x = 8 and 0 (the initial point).]

It will reach the ground in 8 seconds

<u>Graphically</u>

Plot the function and find the time, x, when the graph passes through the x axis (after t = 0). Attached.

6 0

2 years ago

A whole number has a 6 in the hundreds place, and all of its other digits are zero. If the 6 is moved from the hundreds place to

DaniilM [7]

Answer:

The original number is 10 times the new number.

Step-by-step explanation:

5 0

3 years ago

7m-17=60 solve one and two step equation

lord [1]

Answer:

Step-by-step explanation:

Hope it helps you :)

5 0

3 years ago

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