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dlinn [17]
2 years ago
11

28" alt="p(x)=x^{3}+7x^{2} -4x-28" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
vova2212 [387]2 years ago
8 0

Answer:

(x + 7) (x + 2) (x - 2)

Step-by-step explanation:

p(x) = x³ + 7x² - 4x - 28

      = x² (x + 7) - 4 (x +7)

      = (x + 7) (x² - 4)

      = (x + 7) (x + 2) (x - 2)

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Brittany removed half of the total number of marbles from her bag, and gave one fourth of the remaining marbles to her friend. W
patriot [66]

The fraction of the total number of marbles is left in the bag after removing and giving part to her friend is 3/8

<h3>Fraction</h3>

let

  • Number of marbles in her bag = x
  • Number of marbles removed from her bag = 1/2x

Remaining marbles = x - 1/2x

= (2x-x) / 2

= x/2

= 1/2x

Number of marbles given to her friend = 1/4 of 1/2x

= 1/4 × 1/2x

= 1/8x

Number of marbles left in the bag = Remaining marbles - Number of marbles given to her friend

= 1/2x - 1/8x

= (4x-x) / 8

= 3x/8

= 3/8x

Learn more about fraction:

brainly.com/question/11562149

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3 0
1 year ago
You have 88 grams of a radioactive kind of actinium. How much will be left after 44 years if its half-life is 22 years?
mash [69]

Answer:

22 grams

Step-by-step explanation:

loses 50% of it's mass per 22 years

so after 22 years the mass would be 44 grams

22 years later would leave 50% of 44 grams = 22 grams

3 0
2 years ago
WILL GIVE BRAINLIEST AND 20 POINTS
otez555 [7]

Answer:

34 is the angle in the top left       87 is the angle on the top right ans 59 is the angle on the bottom right

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
How do I find the percent and what is the answer DO NOT COMMENT THE ANSWER IF YOU CAN’T EXPLAIN
Marianna [84]
64/100*75=48  That is the answer
4 0
2 years ago
Solve the simultaneous equations<br>X + y = 8<br>3x - y = 12<br>X =<br>y =​
Vadim26 [7]

Answer:

y= -6

x=14

Step-by-step explanation:

in attachment

8 0
3 years ago
Read 2 more answers
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