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Charra [1.4K]
3 years ago
15

Real life example of plane in geometry

Mathematics
2 answers:
strojnjashka [21]3 years ago
7 0
Examples of a plane would be a desktop, the chalkboard/whiteboard, a piece of paper, a TV screen, window, wall or a door.
Molodets [167]3 years ago
5 0

Answer: piece of paper or a door

Step-by-step explanation:

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In the figure below, find x. Assume that segments that appear to be tangent are tangent. Round to the nearest tenth.​
vichka [17]

Check the picture below.

4 0
2 years ago
PLEASE HELP?
AlekseyPX
I think you forgot to give the diagram along with the question. I am answering the question based on my research and knowledge. "x = 7, y = 9" is the one among the following choices given in the question that gives the value of "x" and "y". The correct option among all the options that are given in the question is the third option or option "C".
6 0
3 years ago
Write the equation of the parabola in vertex form. <br><br> Vertex (1,2) point (2,-4)
lozanna [386]

Answer:

f(x)=6(x-2)^2-4

Step-by-step explanation:

The equation in vertex form is

f(x)=a(x-2)^2 - 4

Substituting in the coordinates (1,2) to find a,

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8 0
2 years ago
1. Cindy did an experiment. She started out with 700 bacteria cells. She found that the growth rate of the bacteria cells was 4.
Brums [2.3K]

Answer:

  • This is an exponential function of the form y=a(b^x)
  • We will use the following
  • y for the number of bacteria at a given time
  • x for the time
  • a for the starting number of bacteria, which is 700
  • b for the base of the exponent
  • so lets find b, we need the following:
  • r, which will be our rate, which is 4.3% or 0.043, so
  • b=1+r\\b=1+0.043\\b=1.043
  • With this info, let's substitute, and get the equation as the answer: y=700(1.043^x)
  • Put that into desmos, (I attached a screenshot for you)

8 0
3 years ago
A grocery store sells a bag of 7 oranges for $2.80. What is the unit cost?
Elanso [62]

Answer:

The quadratic equations and their solutions are;

9 ± √33 /4 = 2x² - 9x + 6.

4 ± √6 /2 = 2x² - 8x + 5.

9 ± √89 /4 = 2x² - 9x - 1.

4 ± √22 /2 = 2x² - 8x - 3.

Explanation:

Any quadratic equation of the form, ax² + bx + c = 0 can be solved using the formula x = -b ± √b² - 4ac / 2a. Here a, b, and c are the coefficients of the x², x, and the numeric term respectively.

We have to solve all of the five equations to be able to match the equations with their solutions.

2x² - 8x + 5, here a = 2, b = -8, c = 5.                                                  x = -b ± √b² - 4ac / 2a = -(-8) ± √(-8)² - 4(2)(5) / 2(2) = 8 ± √64 - 40/4.     24 can also be written as 4 × 6 and √4 = 2. So                                                                                     x = 8 ± 2√6 / 2×2= 4±√6/2.

2x² - 10x + 3, here a = 2, b = -10, c = 3.                                                   x =-b ± √b² - 4ac / 2a =-(-10) ± √(-10)² - 4(2)(3) / 2(4) = 10 ± √100 + 24/4. 124 can also be written as 4 × 31 and √4 = 2. So                                                                              x = 10 ± 2√31 / 2×2 = 5 ± √31 /2.

2x² - 8x - 3, here a = 2, b = -8, c = -3.                                                    x = -b ± √b² - 4ac / 2a = -(-8) ± √(-8)² - 4(2)(-3) / 2(2) = 8 ± √64 + 24/4.     88 can also be written as 4 × 22 and √4 = 2. So                                                                             x = 8 ± 2√22 / 2×2 = 4± √22/2.

2x² - 9x - 1, here a = 2, b = -9, c = -1.                                                     x = -b ± √b² - 4ac / 2a = -(-9) ± √(-9)² - 4(2)(-1) / 2(2) = 9 ± √81 + 8/4.                                          x = 9 ± √89 / 4.

2x² - 9x + 6, here a = 2, b = -9, c = 6.                                                    x = -b ± √b² - 4ac / 2a = -(-9) ± √(-9)² - 4(2)(6) / 2(2) = 9 ± √81 - 48/4.                                                                             x = 9 ± √33 / 4 .

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6 0
3 years ago
Read 2 more answers
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