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nordsb [41]
3 years ago
9

Which graph below solves the following system of equations correctly? y = three over four times x squared minus 3 y = negative t

hree over four times x squared plus 3

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
7 0
Let's rewrite the system of equations:
 y = three over four times x squared minus 3
 y = (3/4) x ^ 2 - 3
 y = negative three over four times x squared plus 3
 y = (-3/4) x ^ 2 + 3
 The system of equations is:
 y = (3/4) x ^ 2 - 3
 y = (-3/4) x ^ 2 + 3
 The solutions are:
 (-2, 0)
 (2, 0)
 Answer:
 
See attached image

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Hi! Please help me, will mark brainliest!
PIT_PIT [208]

Answer:

p(t) = 0 for t = 1

p(t) = 1 for t = 1/8 = 8^-1

Step-by-step explanation:

the graph you will have to do yourself.

just go there and type in

-  log_{8}(x)

well, don't type "log" in letters.

you start by typing the "-" sign, and then you need to look up the functions by clicking on the "funcs" button and look for the log functions .

pick the

log_{a}

option. and then simply enter 8 as the first parameter in the {} brackets and x as the second in the () brackets.

and then you see.

any logarithm is 0 for x (or t) = 1.

because any a⁰ = 1.

and the logarithm gives you that exponent of the base number that leads to the given x value.

in other words : a logarithm is the inverse function of an exponential function.

the exponential function is

y = a^x

and the logarithm then determines

x =  log_{a}(y)

that is all.

and

-  log_{8}(x)  = 1

means that the logarithm itself delivered -1.

and 8^-1 = 1/8

so, p(t) = 1 for t = 1/8

5 0
2 years ago
13. Suppose the probability of passing a driving test is 65%. (a) On a certain afternoon 15 people are tested. (i) What is the e
Alex_Xolod [135]

Answer: 9

Step-by-step explanation:

Based on the information given in the question, the expected number of people who pass will be calculated as:

= Probability of passing the driving test × Number of people tested

= 65% × 15

= 0.65 × 15

= 9.75

Therefore, expected number of people who pass is 9.

8 0
3 years ago
I Need Help!!! PLEASE HELP!!!!!!!!
WINSTONCH [101]

Answer:

Maybe B?

Step-by-step explanation:

8 0
2 years ago
HELP ASAP PLEASE
Liula [17]

distance : 15 units

coordinates :  (7,0) and (-8, 45)

slope:

\sf \rightarrow  \dfrac{y_2-y_1}{x_2-x_1}

\sf \rightarrow  \dfrac{45-0}{-8-7}

\sf \rightarrow  -3

equation:

\hookrightarrow \sf y - 0 = -3(x-7)

\hookrightarrow \sf y = -3x+21

the y-intercept of this function:

\hookrightarrow \sf y = -3(0)+21

\hookrightarrow \sf y =21

distance between both y-intercept :

  • 21 - 6
  • 15
3 0
2 years ago
Dalia has a jar with 6 red pencils and 4 green pencils. She will randomly pick two pencils without replacement. What is the prob
Liono4ka [1.6K]

Answer:

1/3

Step-by-step explanation:

i have attached a tree diagram to help with your understanding, first branches show probability of picking either green or red the first time she picks one. The next set of branches show the updated probabilities after one pencil has been taken out.

3 0
1 year ago
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