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zmey [24]
2 years ago
7

Need help with this. Please

Mathematics
1 answer:
seropon [69]2 years ago
6 0

Answer: hey im not sure, but i think your supposed to solve 7x-6 and 9+12x. Add these two together and times it by 55. Im not syre if this is right but u could try it.

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Mutually exclusive..​
mrs_skeptik [129]

Answer:

there are no answer choices

Step-by-step explanation:

sorry can't help

8 0
3 years ago
What is one of the solutions to the following equations? y2+x2=53<br> Y-x=5
Olenka [21]
(1)  y² + x² = 53
(2)  y - x = 5 ⇒ y = x + 5

subtitute (2) to (1)

(x + 5)² + x² = 53      |use (a + b)² = a² + 2ab + b²

x² + 2x·5 + 5² + x² = 53

2x² + 10x + 25 = 53     |subtract 53 from both sides

2x² + 10x - 28 =0     |divide both sides by 2

x² + 5x - 14 = 0

x² - 2x+ 7x - 14 = 0

x(x - 2) + 7(x - 2) = 0

(x - 2)(x + 7) = 0 ⇔ x - 2 = 0 or x + 7 = 0 ⇔ x = 2 or x = -7

subtitute the values of y to (2)

for x = 2, y = 5 + 2 = 7
for x = -7, y = 5 + (-7) = 5 - 2 = 3

Answer: x = 2 and y = 7 or x = -7 and y = 3
4 0
3 years ago
Use the given frequency table to find mean, median,mode,and range.
galina1969 [7]

Answer:

Mode:6

median: 5.5

mean: 5.25

range : 2

Step-by-step explanation:

7 0
2 years ago
Find the distance between points P(9,8) and Q(7,6) to the nearest tenth.
sergey [27]

Answer:

2.8 units

Step-by-step explanation:

Think of this distance as the hypotenuse of a right triangle that has a vertical leg and a horizontal one as well.

Going from P to Q, the change in x is 2 and the change in y is also 2.

Thus, by the Pythagorean Theorem, this desired distance is:

d = √(2^2 + 2^2) = 2√2 units, or 2.8 units

6 0
2 years ago
Wade took 1/3 of brownies and cut 12 equal sizes what amount of the pan will each piece be.
IrinaVladis [17]

Answer: each 1/3 would be 4 brownies.

Step-by-step explanation: 12 divided by 3 is 4.

3 0
3 years ago
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