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mart [117]
3 years ago
5

Solve the quadratic equation x2 − 18x + 81 = 64 for x.

Mathematics
1 answer:
bagirrra123 [75]3 years ago
5 0

Answer:

x^1=1,x^2=17

Step-by-step explanation:

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there can be at most 125 customers in a certain restaurant write an inequality that represents the numbers of costumers at the r
Alborosie
There can only be less than or equal to 125 customers, you can't have more than that but you can have exactly 125 or less than 125. your inequality should look like < 125 with a line underneath the symbol to describe "equal to"
5 0
4 years ago
8. myles had 103 coins in a jar - all nickels, dimes, and quarters. if the total value of the coins is $15
Ivanshal [37]

If the total value of the coins is $15. The number of each type of coin is: 31 quarters, 72 dimes.

<h3>Number of each type of coin</h3>

Let D = number of dimes

Let Q = the number of quarters

Equations

d + q = 103

0.10d + 0.25q = 15  

d = 103 -q

0.10(103 -q) + 0.25q = 15

10.3 - 0.10q + 0.25q = 15

0.15q = 4.7

q=4.7/0.15

q=31 quarters

Substitute q into second equation

D+31=103

D=72 dimes

Therefore the number of each type of coin is: 31 quarters, 72 dimes.

Learn more number of each coin here:brainly.com/question/13934075

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5 0
3 years ago
BRAINLIEST!! LOTS of POINTS!!!! HURRY HURRY
Semenov [28]

Answer/Step-by-step explanation:

<u>Steps to solve: 2/9 − (−1/3 ÷ 3/5)</u>

(-1/3 ÷ 3/5)

= (-1/3 x 5/3)

= (-5/9)

-2/9 - (-5/9)

= -2/9 + 5/9

= 3/9

<u>To check:</u>

5/9 - 2/9 = 3/9

8 0
4 years ago
Read 2 more answers
Which statement best describes the graph of the system of equations? x-y=1, y-x=1
Dmitry_Shevchenko [17]

Answer:

             Parallel lines

Step-by-step explanation:

x - y = 1                                       y - x = 1

- y = -x + 1                                   y = x + 1  ⇒ m₂ = 1, b₂ = 1

÷(-1)     ÷(-1)

y = x - 1 ⇒ m₁ = 1, b₁ = -1

m₁ = m₂   and   b₁ ≠ b₂ means that the lines described by these equations are parallel

8 0
4 years ago
Which of the following sets of data does not contain an outlier?
ale4655 [162]

Answer:

it is a letter b

Step-by-step explanation:

that does not contain an outlet

4 0
3 years ago
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