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Gemiola [76]
3 years ago
7

Owen used these steps to solve the equation 4x+7=1+2(2x+3) . Which choice describes the meaning of his result, 7=7 ?

Mathematics
2 answers:
vesna_86 [32]3 years ago
8 0
The answer is d because 7=7 and whenever the two numbers equal each other, then all values of x are true, but when they don't equal each other then No values of x are true
lana66690 [7]3 years ago
7 0

Answer:

d  all valuest make the equation true

Step-by-step explanation:

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Some people pay rent each month for an apartment.What type of expense are most rent payments?
Dominik [7]

Answer:

A

Step-by-step explanation:

6 0
2 years ago
Researchers wanted to see which species of lizard (A, B, or C) is most likely to survive a bacterial infection. So they infected
Slav-nsk [51]

Answer:

A) attached below

B) 0.61

C) 0.47

Step-by-step explanation:

Given data:

Total number of lizards infected = 38

Of the 15 species B lizards 40% survived

For specie C one more survived than died

Out of the 24 lizards that died 1/3 were species A

<u>A) contingency table </u>

attached below

<u>B) Determine the proportion of these lizards in this study that were either specie A or Specie B </u>

P ( A or B ) = ( 8 + 15 ) / 38 = 0.605 ≈ 0.61

<u>C) determine the probability that specie C lizard did not study </u>

P ( not surviving  | C ) = 7 / 15 = 0.466 ≈ 0.47

7 0
3 years ago
1) A line has a slope of -2 and passes through the points A(x,5), B(4,-5) and C(6,y). Find the coordinates of A and C.
siniylev [52]
1) Coordinates of A: (-1,5)  Coordinates of C: (6,-9)

2) Coordinates of A: (-1,-14) Coordinates of M: (6,7)


3 0
3 years ago
Can any one please help me with these Math questions soon as possible?
disa [49]

Answer:

the answer to the first question is 9/27, 5/27, 13/27

the answer to the second question is 27/126, 33/126, 20/126, 42/126

the answer to the last question is 32/44

Step-by-step explanation:

they way you solve the fist two questions you just add the numbers up and that will tell you your probability.

for the last question you take the number of players and subtract it by 12 to get the top number

7 0
3 years ago
What error did zacharias make?
qwelly [4]
The equation 0 = -2x2 5x - 3 was the quadratic formula that Zacharias used. However, he started substituting as:
Quadratic formula as x = ; substitution as x

The errors he made: he mistakenly used the negative (-) and postive (+)
      * -5 should have been 5
      * 52 should have been -52
      * both the numerator and the denominator  should have been -2 instead        of 2
7 0
3 years ago
Read 2 more answers
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