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mr Goodwill [35]
3 years ago
14

Given A, B, and C are collinear. The ratio of AB to AC is 3:4. Find the y coordinate of A if B(3, -1) and C(5, -3).

Mathematics
1 answer:
Lana71 [14]3 years ago
5 0

Answer:

c

Step-by-step explanation:

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43. Simplify (k – 5) - (k2 + 8).
lesantik [10]

Answer:

(D) -k2 + k - 13

Step-by-step explanation:

Pulling out like terms :

2.1     Pull out like factors :

  -k2 + k - 13  =   -1 • (k2 - k + 13)

Trying to factor by splitting the middle term

2.2     Factoring  k2 - k + 13

The first term is,  k2  its coefficient is  1 .

The middle term is,  -k  its coefficient is  -1 .

The last term, "the constant", is  +13

Step-1 : Multiply the coefficient of the first term by the constant   1 • 13 = 13

Step-2 : Find two factors of  13  whose sum equals the coefficient of the middle term, which is   -1 .

     -13    +    -1    =    -14

     -1    +    -13    =    -14

     1    +    13    =    14

     13    +    1    =    14

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Final result :

 -k2 + k - 13

Processing ends successfully

plz mark me as brainliest :)

3 0
4 years ago
Read 2 more answers
Solve the following equation: 2(4^2 + 10) =
lesantik [10]

Answer:

52

Step-by-step explanation:

2(4^2 + 10) =

We do what's in the parenthesis first.

4^2 = 16 and 16+10 =26.

2(26)

= 52

3 0
4 years ago
Read 2 more answers
How many places do you need to move the decimal to the left to write the
NikAS [45]

Answer: 6 x 10^12

Step-by-step explanation:

Move the decimal to the left so there is one non-zero digit number left of the decimal point. This will be the exponent placed on 10

3 0
3 years ago
1. Find the slope of the line that goes through the points (2, 5) and (6, 7)
ella [17]

Answer:

\displaystyle m = \frac{1}{2}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Coordinates (x, y)
  • Slope Formula: \displaystyle m = \frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

Point (2, 5)

Point (6, 7)

<u>Step 2: Find slope </u><em><u>m</u></em>

  1. Substitute in points [Slope Formula]:                                                              \displaystyle m = \frac{7-5}{6-2}
  2. [Fraction] Subtract:                                                                                           \displaystyle m = \frac{2}{4}
  3. [Fraction] Simplify:                                                                                            \displaystyle m = \frac{1}{2}
7 0
3 years ago
Wyatt says the fraction means 7 sixths. Is he correct?
nekit [7.7K]

Answer:

yes Wyatt is very correct

3 0
2 years ago
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