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3 years ago

Help please i give the best one brainlyest

Mathematics

1 answer:

pentagon [3]3 years ago

7 0

Answer:

The algebraic expression has one constant, 10.2, which is a number by itself. The variables, which are letters that stand for unknown values, are x and y. The coefficients, which are numbers that are multiplied to the variables, are

-1, -1/2, and 1. The terms that have an x are like terms.

Step-by-step explanation:hope this helps

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Please oh please help me I don’t want too fail!

SCORPION-xisa [38]

Answer:

Step-by-step explanation:

The best bet would be D because if its going counterclockwise 360 degrees then it would make a full rotation going back to the same position although I would work out the problem to the best of your ability just to make sure because I'm not entirely sure about my answer.

7 0

3 years ago

Find an equation of a line whose graph intersects the graph of the parabola y=x^2 at (a) two points, (b) one point, and (c) no p

ExtremeBDS [4]

1) 2 points:
We need to come up with a function that intersects the graph at two points, meaning has two (x,y) in common with the function. If you look at the graph of y=x^2, you see that it would be quite easy to draw a line that intersects the graph twice. In fact, there are an infinite number of functions that would satisfy this.
One easy function is y=2. This is a horizontal line in which y=2 for all values of x. In the graph y=x^2, y=2 intersects twice.
2=x^2
x^2= √2 or -√2
the shared points are (√2,2) and (-√2,2)

b) one point:
Here, we want to find an equation with only one (x,y) in common with y=x². This is a bit trickier.
One easy solution is y=-x²
Looking at a graph of the two functions, you see that y=-x² is a reflection across the x-axis of y= x². The two functions have only one point in common: (0,0).

c) no point in common
Take another look at the graph of y=x². You see that the function never crosses the x-axis. A simple function that will never intersect the graph is y=-2. Since y is negative for all values of x, it is guaranteed to never intersect y=x², a function in which y is positive for all negative or positive values of x.

3 0

4 years ago

Need help plz show your work.I will give the Brainliest

Darya [45]

The answer is C. If you simplify the ratios in the table, they equal 3:5. You look at the examples, and divide both numbers in the ratios by this simplified porpotion. If the numbers are the smame as eachother after dividing, that is how you know your answer

8 0

3 years ago

Read 2 more answers

Find the quadratic function that passes through the points: (-1,6), (1,4), and (2,9).

Masja [62]

Answer:

The quadratic function that passes through given points is y = 2 x² - x + 3 .

Step-by-step explanation:

The given quadratic function as

y = a x² + b x + c

The equation passes through the points ( - 1 , 6 ) , ( 1 , 4 ) and ( 2, 9 )

As The points passes through equation then

At points ( - 1 , 6 )

6 = a (1)² + b ×( - 1 ) + c

Or, a - b + c = 6 .....A

Again At points ( 1 , 4 )

4 = a (1)² + b × 1 + c

Or, a + b + c = 4 .......B

Similarly At points ( 2 , 9 )

9 = a (2)² + b × 2 + c

Or, 4 a +2 b + c = 9 ....,,,C

Now solving equation A and B

( a - b + c ) + ( a + b + c ) = 6 + 4

Or, a + c = $\frac{10}{2}$

I.e a + c = 5 ......D

Similarly Solving equation B and C

( 4 a +2 b + c ) - 2 × ( a + b + c ) = 9 - 2 × 4

Or, ( 4 a - 2 a + 2 b - 2 b + c - 2 c ) = 9 - 8

Or, ( 2 a - c ) = 1 .....E

Solving D and E

( a + c ) + ( 2 a - c ) = 5 + 1

Or, 3 a = 6

∴ a = $\frac{6}{3}$

I.e a = 2

Put the value of a in Eq D

So , a + c = 5

Or, c = 5 - a

∴ c = 5 - 2 = 3

I.e c = 3

Put The value of a and c in Eq A

a - b + c = 6

Or, b = a + c - 6

Or . b = 2 + 3 - 6

∴ , b = 5 - 6

I.e b = - 1

Now, Putting the values of a , b , c in the given quadratic equation

I.e y = a x² + b x + c

Or, y = 2 x² + ( - 1 ) x + 3

∴ The quadratic eq is y = 2 x² - x + 3

Hence The quadratic function that passes through given points is y = 2 x² - x + 3 . Answer

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3 years ago

PLEASE HELP ME IM IN A BIG HURRY

Alex787 [66]

Part A:
Price before tax: $49.99
Discount: 50% of $49.99 = 50% * $49.99 = 0.50 * $49.99 = $25.00
Discounted price: $49.99 - $25.00 = $24.99
Tax on discounted price: 8% of $24.99 = 8% * $24.99 = 0.08 * $24.99 = $2.00

Part B:
Total price: $24.99 + $2.00 = $26.99

5 0

4 years ago