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3 years ago

Is (2,0) a solution for the equation -3+9y=-6

Mathematics

1 answer:

SpyIntel [72]3 years ago

4 0

Answer:

$y=-\frac{1}{3}$

Step-by-step explanation:

- 3 + 9y = - 6

- 3 + 3 + 9y = - 6 + 3

9y = - 3

9y ÷ 9 = - 3 ÷ 9

$y=- \frac{1}{3}$

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Sunhee had four plastic shapes a square, a circle, and a pentagon in how many ways can she line up the four shapes of the circle

julsineya [31]

Answer:

only three shapes are mentioned.

But anyhow, 4 shapes allow the following reasoning...

you can start lining up with any of the for shapes, so you have 4 possibilities, for the second position you have 3 possibilities, for the third 2 and for the last only 1.

so 4*3*2*1= 24 possible ways

but with the added rule to keep the circle and the square apart, we have to reduce the number.

by the same step-by-step reasoning we get

4 possibilities for the 1st item

only 2 possibilities for the 2nd item

(if 1st is square or circle, the other one's not an option, if it's not we have to choose one of them to not place them both at point 3 and 4)

only 1 choice for the 3rd item

(reasoning as above, if 2nd is square or circle, we have to the only other, if it isn't, we can put it here at 3rd position)

plus scenarios where either square or circle are on 1st point, the other's on 4th.

I guess that makes 14 possible arrangements

5 0

3 years ago

John's checkbook had a balance of $432.05 on June 10th On June 12th he wrote a check

Anna71 [15]

Answer:

John's currenct account balance after the deposit is $357.43.

Step-by-step explanation:

Current balance: $432.05

-$123.87

Current balance: $308.18

-$250.75

Current balance: $57.43

+$300.00

Current balance: $357.43

6 0

3 years ago

Find the missing side length… please help

My name is Ann [436]

Answer:

So let's consider the triangle
$\tan(46) = \frac{17}{x}$
Cross multiply
$tan(46) \times x = 17$
$x = 16.42$
I do quizzes and exams lmk if your interested!

7 0

3 years ago

Identify the two rational numbers 2.7182818459, 2.777777, square root 3, -7/3

Tasya [4]

Answer:

2.777777 and -7/3

Step-by-step explanation:

2.7182818459 cannot be written in fraction form therefore it is irrational.

2.777777 is rational because it can be written as the fraction 25/9

The square root of 3 is 1.7320508075688772, this number cannot be written as a fraction so it is irrational.

-7/3 is rational because it is already in fraction form.

6 0

4 years ago

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Simplify. 8r(4 - p) 32r -p 32r - 8rp 32 - rp 4 - 8rp

gizmo_the_mogwai [7]

So the right answer is of option B.

Look at the attached picture

hope it will be helpful to you...

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3 years ago

Read 2 more answers