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yulyashka [42]
1 year ago
11

Which of the following describes the correct process for solving the equation 2x - 6 = 22 and

Mathematics
2 answers:
bogdanovich [222]1 year ago
7 0

hi

Correct answer is B

2X-6 =22

2X-6 +6 = 22 +6

2X =28

2X/2 = 28/2

X=14

Ulleksa [173]1 year ago
3 0

Answer:

The correct solution is B

Step-by-step explanation:

2x - 6 = 22

2x = 28

x = 14

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What is the equation of a vertical ellipse with a major axis= 20 and a minor axis = 14?​
Sunny_sXe [5.5K]

\bold{\text{Answer:  b.}\quad \dfrac{y^2}{100}+\dfrac{x^2}{49}=1}

<u>Step-by-step explanation:</u>

The ellipse is vertical so y has the biggest radius.

Major axis (y) = 20 so the y-radius is 20/2 = 10

Minor axis (x) = 14 so the x-radius is 14/2 = 7

The equation of an ellipse is:   \dfrac{(x-h)^2}{a^2}+\dfrac{(y-k)^2}{b^2}=1   where

  • (h, k) is the center of the ellipse
  • a is the x-radius
  • b is the y-radius

Given: a = 7, b = 10

Assume: (h, k) = (0, 0)

\dfrac{(x-0)^2}{7^2}+\dfrac{(y-0)^2}{10^2}=1\\\\\\\dfrac{x^2}{49}+\dfrac{y^2}{100}=1\\\\\\\longrightarrow \dfrac{y^2}{100}+\dfrac{x^2}{49}=1

6 0
2 years ago
PLEASE HELP IS IT A B C OR D PLEASE HELP ME Thank You
Savatey [412]

Answer: I believe the correct answer is option D.

7 0
3 years ago
Read 2 more answers
Please help explanation if possible
Eva8 [605]

Answer:

612 adults

361 students

Step-by-step explanation:

To solve this question, set two equations:

Let x be number of adults and y be number of students.

As there are in total 937 people, the equation would be the sum of both adults and children:

x+y=937

x=937-y  ...... ( 1 )

As the total sale amount is $1109, the equation would be to add up the ticket fee:

2x+0.75y=1,109  ...... ( 2 )

Put ( 1 ) into ( 2 ):

2(937-y)+0.75y=1,109

1874-2y+0.75y=1,109

-1.25y=-765

y=763/1.25

y=612

Put y into ( 1 ):

x=973-612

x=361

Therefore there are 612 adults and 361 students.

5 0
2 years ago
A=2 b=3 c=4<br><br> 1) ab - c =<br> 2) 6c - 2b=<br> 3) a + b - c + 5 =<br> 4) 7c - 2a =
bekas [8.4K]

Step-by-step explanation:

1)ab-c

=2(3)-4

=6-4

=2

2)6c-2b

=6(4)-2(3)

=24-6

=18

3)a+b-c+5

=2+3-4+5

=10-4

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5)7c-2a

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=28-4

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7 0
3 years ago
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Allisa [31]

Answer:

The answer is, The fastest speed is 3/4 mile in 1/8 hour

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