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Salsk061 [2.6K]
3 years ago
12

Raina solved an equation with a variable on both sides . She got n = -9 as her solution . She stated that this solution is an ex

ample of a no solution. Do you agree with Raina? Explain or Justify your answer.
Mathematics
1 answer:
Lady bird [3.3K]3 years ago
6 0

Answer:

Step-by-step explanation:

..

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3) John and his two friends went out to lunch.
Delvig [45]

Answer:

they get 8.27$ back.

Step-by-step explanation:

Cost of lunch=$7.29+$8.45+$5.99

=$21.73

3 of them put $10 each=$10×3

$30

Total change they got back=$30-$21.73

=$8.27

Mark as a brainest answer ok

4 0
3 years ago
How do you do these questions?
diamong [38]

Step-by-step explanation:

x² + (y − 1)² = 9

This is a circle with center (0, 1) and radius 3.  We can parameterize it using sine and cosine.

Use the starting point to determine which should be sine and which should be cosine.

Use the direction to determine the signs.

Use the number of revolutions and the interval to determine coefficient of t.

(A) Once around clockwise, starting at (3, 1).  0 ≤ t ≤ 2π.

The particle starts at (3, 1), which is 0 radians on a unit circle.  It makes 1 revolution (2π radians).  Therefore:

x = 3 cos t

y = 1 − 3 sin t

(B) Two times around counterclockwise, starting at (3, 1).  0 ≤ t ≤ 4π.

The particle starts at (3, 1), which is 0 radians on a unit circle.  It makes 2 revolutions (4π radians).  Therefore:

x = 3 cos t

y = 1 + 3 sin t

(C) Halfway around counterclockwise, starting at (0, 4). 0 ≤ t ≤ π.

The particle starts at (0, 4), which is π/2 radians on a unit circle.  It makes 1/2 revolution (π radians).  Therefore:

x = -3 sin t

y = 1 + 3 cos t

6 0
3 years ago
Solve for q 36q² − 64 = 0
Vera_Pavlovna [14]

36q² − 64 = 0

=> 36q² = 0 + 64

=> 36q² = 64

=> q² = 64/36

=> q² = 16/9

=> q = √(16/9)

=> q = √16/√9

=> q = ± 4/3

5 0
3 years ago
Read 2 more answers
these days more and more appliances are talking to each other and with the internet. How will all this talk help in the developm
Gennadij [26K]

Answer:

<u><em>please mark brainliest!</em></u>

Step-by-step explanation:

The internet today is driven by smartphones, tablets, and personal, given in the system Explanation, AI makes the appliances talk to each other by decoding.

3 0
3 years ago
In The Morning, Emily Studied 40 Mins. For A Math Exam. Later That Day, Emily Studied For x More Mins. Write an Equation That re
kupik [55]
Equation: 40x (minutes)
4 0
3 years ago
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