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Mama L [17]
3 years ago
12

Help plz //????/////?/????///

Mathematics
2 answers:
murzikaleks [220]3 years ago
6 0
Solution will be anything greater than 21
Dima020 [189]3 years ago
4 0
Put the arrow on the 20 pointing to the right
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Which problem situation best matches the equation 10 + 2x = 16?
astra-53 [7]

Answer:

situation a and she bought 3 pounds

Step-by-step explanation:

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2 years ago
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Which of the following is a root of the polynomial function below
VMariaS [17]

Answer:

A) 2 + i

Step-by-step explanation:

F(x) = x^3 - 3x^2 + x + 5

0 = x^3 - 3x^2 + x + 5

0 = (x+1)(x^2 - 4x + 5)

Great, now we can separate these two parenthesis expressions because of the Zero Product Property. Start with the simple one:

0 = x + 1

<u>x = -1</u>

We have our first real root! But it doesn't look like that's one of the answer choices, so move on to the other expression:

0 = (x^2 - 4x +5)

This expression can't be factored, so we will use the quadratic formula (which is x = \frac{-b+-\sqrt{b^{2}-4ac }  }{2a}).

First solve for the positive part:

= (4 + sqrt(16-20)) / 2

  = 4 + sqrt(-4) / 2

  = 4 + 2i / 2

  <u>= 2 + i</u>

Then for the negative part:

= (4 - sqrt(16-20)) / 2

  = 4 - sqrt(-4) / 2

  = 4 - 2i / 2

  <u>= 2 - i</u>

<u></u>

<u>2 + i</u> is answer choice A! Our other roots, <u>2 - i</u> and <u>-1</u>, aren't answer choices.

8 0
3 years ago
Help!! what are these angle measures
BartSMP [9]

Answer:

m1 = 62.5

m2 = 62.5

m3 = 55°

m4 = 75°

m5 = 50°

Step-by-step explanation:

m1: Sides 1 and 2 are congruent so angle will be the exact same as m2:

180° - 55° = 125 | 125 / 2 = <u>62.5°</u>

m2: same as m1; <u>62.5°</u>

m3: equivalent to <u>55°</u> due to its location

m4: angle of a line is 180° so 180° - 105° = <u>75°</u>

m5: angles of triangle add to 180° so 180° - (75° + 55°) = <u>50°</u>

6 0
2 years ago
105% of 260 What is the answer?
damaskus [11]
Percent means parts out of 100
105%=105/100=1.05
'of' means multiply

105% of 260=1.05 times 260=273
6 0
3 years ago
Read 2 more answers
Marcia has a licorice rope that is 28 inches long. She wants to cut it into 3,-inch pieces to share with friends. How many piece
diamong [38]

Answer:

9 pieces

Step-by-step explanation:

28 inches rope cut into 3-inch pieces

  • 28/3 = 9 1/3

There is no matching answer choice, if given numbers are correct then the answer is 9 full pieces

---------

<u>Note:</u>

  • The close answer choice is 8
  • 28/8 = 3 1/2 or 3.5
  • So if cut into 3.5 inch pieces then it is 8 full pieces
  • just in case it was typo 3 instead of 3.5
8 0
3 years ago
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