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3 years ago

Explain whyyy????????

Mathematics

2 answers:

bixtya [17]3 years ago

7 0

I think the answer for this question is B

qwelly [4]3 years ago

5 0

These linear functions are in the form: y = ax + b

Plugging in any value of x will give you the value of y, and vice-versa.

The grid says that when x = 0, y = 1.35. And also, when x = 22.5, y = 0.

So you can eliminate half of the possibilities by plugging x = 0 in all the equations.

When x = 0, y = ax + b is simply y = b. So only A. and B. make sense so far.

When y = 0, y = ax + b is simplifies to 0 = ax + b which simplifies to ax = -b. By plugging x = 22.5, you should be able to deduce which of the answers is right. I can confirm if you'd like

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Question 1 2 pts Logic Puzzle: A certain clock runs fast; it indicates that 1 hour has passed when actually only 56 minutes have

Liono4ka [1.6K]

Using proportions, it is found that the correct time when it reads 10:30pm is of 9:40 pm.

<h3>What is a proportion?</h3>

A proportion is a fraction of total amount, and the measures are related using a rule of three.

In this problem, when 56 minutes have passed, the clock indicates that 60 minutes have passed. Hence, what is the time passed when the clock indicates that 12 hours and 30 minutes, that is, 60 x 12 + 30 = 750 minutes have passed?

Hence, the <em>rule of three</em> is:

56 minutes - 60 minutes

x minutes - 750 minutes

Applying cross multiplication:

$60x = 56 \times 750$

$x = \frac{56 \times 750}{60}$

$x = 700$

700 minutes is 660/60 = 11 hours + 40 minutes after 10:00 am, hence the correct time is of 9:40 pm.

You can learn more about proportions at brainly.com/question/24372153

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2 years ago

What are the solutions of the equation 6x2 + x-1=0 ?

Aleksandr [31]

Answer:

<u>Options B and D</u>

Step-by-step explanation:

6x² + x - 1 = 0

6x² + 3x - 2x - 1 = 0

3x(2x + 1) - 1(2x + 1) = 0

(3x - 1)(2x + 1)

x = 1/3 and -1/2

<u>Options B and D</u>

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2 years ago

The equation below represents the trend line of a scatter plot showing the hours spent studying versus science test scores.

navik [9.2K]

Answer:

On the science test the point ( 0 , 424 ) the intercepts is bigger

Step-by-step explanation:

The relation hours spend vs science test score is

y = 6.5*x + 424

And the relation hours spend vs Maths test score is

y = 7.2*x + 34.7

Making x = 0 ( student does not study at all ) we get:

For science score test woul be

y = 0 + 424

In case of maths

y = 0 + 34.7

That mean student without studying will get better score in science.

The point ( 0 , 424) ( science ) represents the interception with y axis

in Maths case such point is ( 0 . 34.7)

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3 years ago

Read 2 more answers

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goldfiish [28.3K]

I think answer should be d. Please give me brainlest let me know if it’s correct or not okay thanks bye

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2 years ago

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RideAnS [48]

Answer:

Step-by-step explanation:

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