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stiks02 [169]
4 years ago
7

Please help me!!!!! ;-;

Mathematics
1 answer:
Lelechka [254]4 years ago
4 0
Your answer is zero because you do 4*4=16*3=48*0=zero your answer

hope this helps you

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The factorization of 8x3 -125 is (2x-5)(jx2 +kx+25)
lbvjy [14]

\bf ~\hspace{10em}\textit{difference and sum of cubes} \\\\ a^3+b^3 = (a+b)(a^2-ab+b^2) ~\hfill a^3-b^3 = (a-b)(a^2+ab+b^2) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ 8x^3-125~~ \begin{cases} 8=2\cdot 2\cdot 2\\ \qquad 2^3\\ 125=5\cdot 5\cdot 5\\ \qquad 5^3 \end{cases}\implies 2^3x^3-5^3\implies (2x)^3-5^3 \\[2em] [2x-5][(2x)^2+(2x)(5)+5^2]\implies (2x-5)(\stackrel{\stackrel{j}{\downarrow }}{4}x^2+\stackrel{\stackrel{k}{\downarrow }}{10}x+25)

3 0
4 years ago
Write the total money amount.then write the amount as a fraction or mixed number and as a decimal in terms of dollars
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6 0
3 years ago
If you flip a fair coin 6 times, what is the probability that you will get exactly 4 tails
mars1129 [50]

Answer: So the number of outcomes with exactly 4 tails is 720/2/24 = 15. Finally we can now calculate the probability of getting exactly 4 tails in 6 coin tosses as 15/64 = 0.234 to 3 decimal places.

4 0
3 years ago
Read 2 more answers
2. A line goes through the points (8, 9) and (-2, 4).
Scrat [10]

Answer:

Step-by-step explanation:

A line goes through the points (-2, 4) and (8, 9).  We see that x increases by 10 and y increases by 5.

Thus, the slope of this line is m = rise / run = 5/10 = 1/2    (the slope)

Starting with the point slope equation y - k = m(x - h) and substituting 9 for y, 8 for x and 1/2 for m, we get:

y - 9 = (1/2)(x - 8)   (point-slope form)

y       = (1/2)x + 5     (slope-intercept form)

5 0
3 years ago
Pls help im pretty sure its easy i just forgot
dalvyx [7]

the average can be calculated by adding the scores together and then dividing by the number of scores.

we can set up an equation:

let x = test score needed on next test

(72+72+80+x)/4 = 71

multiply both sides by 4

72+72+80+x = 284

add like terms

224+x=284

subtract 224 from both sides

x=60

she will need a 60 for her average to be 71

7 0
3 years ago
Read 2 more answers
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