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wariber [46]
3 years ago
9

I need help with my work

Mathematics
1 answer:
butalik [34]3 years ago
4 0

Answer:

D

Step-by-step explanation:

Given

(x - 5)³ = (x - 5)(x - 5)(x - 5)

Expand (x - 5)(x - 5) using FOIL then multiply the result by (x - 5)

(x - 5)(x - 5)

= x² - 5x - 5x + 25 = x² - 10x + 25, then

(x - 5)(x² - 10x + 25)

= x(x² - 10x + 25) - 5(x² - 10x + 25)

= x³ - 10x² + 25x - 5x² + 50x - 125 ← collect like terms

= x³ - 15x² + 75x - 125 → D

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I need help with this...
lisov135 [29]

   ln 5
e              =    ?
                                    x
Keep in mind that y=e     and y = ln x are inverse functions of one another.
  ln 5
e       ,  we can drop both the "e" and the "ln 5."  We are left with 5 (answer).
                                                                                        ln 5
Alternatively, we could take the ln of both sides of y = e

which will result in ln y = (ln 5) ln e.  Note that ln e = 1 (these two functions are inverses of one another).

Then we are left with ln y = ln 5.  Dropping the "ln" operator from both sides,

y=5 (same as before).
8 0
3 years ago
Which of these expressions or phrases can be used to represent model choose all the correct answers
katrin [286]

Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!

tinyurl.com/wtjfavyw

3 0
3 years ago
PLS NEED HELP 2ND TIME ASKING LAST QUESTION I NEED PLSSSSS
sergiy2304 [10]
I’m sorry I don’t know the length of JT however JE = 3.
3 0
3 years ago
The height H in feet of a ball suspended from a spring as a function of time T in seconds can be modeled by the equation h=3sin
Anastasy [175]

Answer:

From what I see, the answer is graph D

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
1. For the carnival, the park rented a dunking booth shaped as a rectangular prism. The booth is 3 1/2 ft wide, 3 1/2 ft long, a
tangare [24]

Answer:

Part a) The total volume is 98\ ft^{3}

Part b) 84\ ft^{3}

Step-by-step explanation:

Part a)

Find the total volume

we know that

The volume of a rectangular prism is equal to

V=LWH

we have

L=3\frac{1}{2}\ ft=\frac{3*2+1}{2}=\frac{7}{2}\ ft

W=3\frac{1}{2}\ ft=\frac{3*2+1}{2}=\frac{7}{2}\ ft

H=8\ ft

substitute in the formula

V=(\frac{7}{2})(\frac{7}{2})(8)=98\ ft^{3}

Part b) If they are only going to fill the dunking booth 6/7 full, how many cubic feet of water will they need?

Multiply the total volume by 6/7

so

98(6/7)=84\ ft^{3}

6 0
4 years ago
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