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serg [7]
3 years ago
15

Y=4x+8, y=-7x-5 need to find x and y value please !!

Mathematics
2 answers:
MrRissso [65]3 years ago
4 0
Answer: (x,y)=(-13/11, 36/11)
Morgarella [4.7K]3 years ago
4 0

Step-by-step explanation:

y = 4x+8

y = -7x - 5

4x + 8 = -7x - 5

4x + 7x = -5 - 8

11x = -13

x = -13/11

x = -1.18

y = 4x + 8

y = 4(-1.18) + 8

y = -4.72 + 8

y = 3.28

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PLEASE HELP PLEASE HELP
Murrr4er [49]

The piecewise function tells us to use 3x-5 if the input (x-value) is anything greater than or equal to -4. Let's just plug in -3 for x and that will be your answer:

f(-3) = 3(-3)-5 = -9-5 = -14

Therefore, your answer is A, -14.

4 0
3 years ago
QUESTION 7.
Elan Coil [88]

The probability that exactly 4 of the selected adults believe in reincarnation is 5.184%, and the probability that all of the selected adults believe in reincarnation is 7.776%.

Given that based on a poll, 60% of adults believe in reincarnation, to determine, assuming that 5 adults are randomly selected, what is the probability that exactly 4 of the selected adults believe in reincarnation, and what is the probability that all of the selected adults believe in reincarnation, the following calculations must be performed:

  • 0.6 x 0.6 x 0.6 x 0.6 x 0.4 = X
  • 0.36 x 0.36 x 0.4 = X
  • 0.1296 x 0.4 = X
  • 0.05184 = X
  • 0.05184 x 100 = 5.184

  • 0.6 x 0.6 x 0.6 x 0.6 x 0.6 = X
  • 0.36 x 0.36 x 0.6 = X
  • 0.1296 x 0.6 = X
  • 0.07776 = X
  • 0.07776 x 100 = 7.776

Therefore, the probability that exactly 4 of the selected adults believe in reincarnation is 5.184%, and the probability that all of the selected adults believe in reincarnation is 7.776%.

Learn more in brainly.com/question/795909

5 0
2 years ago
What kind of fraction 22/13
victus00 [196]

Answer:

its a improper fraction

Step-by-step explanation:

The numerator is larger than the the denominator which makes it improper.

7 0
4 years ago
Which ordered pair is in the solution set of 3x-y=10
tia_tia [17]

B as if you plug the co-ordinates into the equation and it equals 10: (3x4)-2= 12-2 =10

A doesn't work as the answer is 20

C doesn't work as the answer is 14

D doesn't work as the answer is -20

3 0
4 years ago
If a plate is moving 3.3 cm/yr, what distance [in kilometers (km)] will the plate move in 1 million years?
sasho [114]

\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}

<h2>33 km</h2>

3.3cm = 0.000033km (divide by 100,000.

So, 0.000033km/yr.

0.000033 × 1,000,000

=33km

  • Thanks
  • Hope it helps

3 0
3 years ago
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