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Stels [109]
4 years ago
11

Mark the points with the coordinates (4, 14), (22, 6), and (16, 18). Connect the points to form a triangle. and what type of tri

angle is it?

Mathematics
2 answers:
victus00 [196]4 years ago
4 0

Answer:

Side of Triangle Length Angle of Triangle Measure

AB                            19.70         CAB                        42.40

BC                            13.42         ABC                        39.47

AC                            12.65         ACB                        98.13

Step-by-step explanation:

Yakvenalex [24]4 years ago
3 0

Answer:

Step-by-step explanation:

You have  the  points (4, 14), (22, 6), and (16, 18).

It is important to remember that he first number of each point is the x-coordinate of that point and the second number of each one of them is the y-coordinate of that point.

Therefore, knowing the above, you can mark each point, as you can observe in the image attached, and then you can connect the points to form the triangle shown in the image.

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How can i solve by completing the square 4r^2-28r=-49
Natalija [7]
To complete the square, the second degree term must have a coefficient of 1.
Since the second degree term here has a coefficient of 4, we start by dividing each term on both sides by 4.

4r^2 - 28r = -49

\dfrac{4r^2}{4} - \dfrac{28}{4}r = -\dfrac{49}{4}

r^2 - 7r = -\dfrac{49}{4}

Now we can complete the square.
First, we need to find what number completes the square.
We take the coefficient of the first degree term, -7 in this case.
Divide it by 2 and square it. -7 divided by 2 is the fraction -7/2.
Now we square -7/2 to get 49/4.
We add 49/4 to both sides.

r^2 - 7r + \dfrac{49}{4} = -\dfrac{49}{4} + \dfrac{49}{4}

(r - \dfrac{7}{2})^2 = 0

r - \dfrac{7}{2} = 0

r = \dfrac{7}{2}
3 0
4 years ago
(20 points NEED HELP ASAP PLZ)
Alika [10]
Not A for sure but I’m not positive which other one it would be.
7 0
4 years ago
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Evaluate... k/2 + 9 = 30
Simora [160]

Answer:

K = 42

Step-by-step explanation:

K/2 = 21

2* k/2 =2*21

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4 0
4 years ago
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Find the value of x......
tangare [24]

Answer:

X=6

Step-by-step explanation:

It is under enlargement and reduction

Therefore we can equates sides because of the parallel lines

\frac{12}{18}  = \frac{4}{x}

Cross multiply

12x = 72

dividing through by 12

x =  \frac{72}{12}

simplify

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8 0
4 years ago
Solve using the Quadratic Formula <br> 5x2-3x-7=0<br> A)<br> B)<br> C)<br> D)
vlabodo [156]

Answer:

C) \displaystyle x=\frac{3 \pm \sqrt{149}}{10}

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>

  • Standard Form: ax² + bx + c = 0
  • Quadratic Formula: \displaystyle x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

5x² - 3x - 7 = 0

↓

<em>a</em> = 5, <em>b</em> = -3, <em>c</em> = -7

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute in variables [Quadratic Formula]:                                                  \displaystyle x=\frac{3 \pm \sqrt{(-3)^2-4(5)(-7)}}{2(5)}
  2. [√Radical] Evaluate exponents:                                                                       \displaystyle x=\frac{3 \pm \sqrt{9-4(5)(-7)}}{2(5)}
  3. [√Radical] Multiply:                                                                                           \displaystyle x=\frac{3 \pm \sqrt{9+140}}{2(5)}
  4. [√Radical] Add:                                                                                                 \displaystyle x=\frac{3 \pm \sqrt{149}}{2(5)}
  5. [Fraction] Multiply:                                                                                            \displaystyle x=\frac{3 \pm \sqrt{149}}{10}
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3 years ago
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