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strojnjashka [21]
3 years ago
12

Find the students error in solving the following inequality

Mathematics
2 answers:
Naya [18.7K]3 years ago
8 0

His error was that he did not flip the inequality sign.

31<5x+6

25<-5x

-5>x

gulaghasi [49]3 years ago
7 0

Answer:

The student should have switched the direction of the inequality sign to get –5> x for a final answer.

Answer choice C on edge

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Enter an equation for the function that includes the points.Give your answer in a(b)x. In the event that a=1 , give your answer
Andrews [41]

Answer:

f(x) = \frac{24}{25} * \frac{5}{6}^x

Step-by-step explanation:

Given

(x_1,y_1) = (2,\frac{2}{3})

(x_2,y_2) = (3,\frac{5}{9})

Required

Write the equation of the function f(x) = ab^x

Express the function as:

y = ab^x

In: (x_1,y_1) = (2,\frac{2}{3})

y = ab^x

\frac{2}{3} = a * b^2 --- (1)

In (x_2,y_2) = (3,\frac{5}{9})

y = ab^x

\frac{5}{9} = a * b^3 --- (2)

Divide (2) by (1)

\frac{5}{9}/\frac{2}{3} = \frac{a*b^3}{a*b^2}

\frac{5}{9}/\frac{2}{3} = b

\frac{5}{9}*\frac{3}{2} = b

\frac{5}{3}*\frac{1}{2} = b

\frac{5}{6} = b

b = \frac{5}{6}

Substitute 5/6 for b in (1)

\frac{2}{3} = a * b^2

\frac{2}{3} = a * \frac{5}{6}^2

\frac{2}{3} = a * \frac{25}{36}

a = \frac{2}{3} * \frac{36}{25}

a = \frac{2}{1} * \frac{12}{25}

a = \frac{24}{25}

The function: f(x) = ab^x

f(x) = \frac{24}{25} * \frac{5}{6}^x

7 0
3 years ago
In 3 hours, a car travels 120 miles. What is the speed of the car
-Dominant- [34]
40 miles an hour and yeah..
3 0
3 years ago
Read 2 more answers
I need some help:
dedylja [7]

The unit rate is another way of saying speed, so we divide the distance over the time. We can pick on any row

If we pick row 1, then, speed = distance/time = 90/2 = 45

Row 2 says the same thing: 135/3 = 45

So does row 3: 225/5 = 45

and so on

Because the speed is 45 mph, the unit rate is 45 miles in one hour. The term "unit" implies how much distance can be covered in one unit of time, in this case 1 hour.

You have the correct answer. Nice work.

6 0
3 years ago
What's the answer please
siniylev [52]
The answer to this would be Point H because, you have to look in between points FB, which gives you the choices of  G, H, L, the most logical answer for this would be point H because its in the middle of points FB. Hope my answer helps
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Answer all &amp; show work! WILL MARK BRAINLIEST!
Eddi Din [679]

Answer:

Step-by-step explanation:

1 12

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