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krok68 [10]
4 years ago
9

Which expression is equivalent to 27 + 45?

Mathematics
1 answer:
Lady_Fox [76]4 years ago
8 0
= 27 + 45
Take 9 as a common, 
= 9(3+5)
'cause 9 times 3 is 27 & 5 times is 45

In short, Your Answer would be Option C

Hope this helps!
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Match each equation with the slope m and y-intercept of its graph.
Svetllana [295]

m=-6 and y-int of (0,5) gives you y = -6x + 5.

Looking through those other equations, you're looking for variations of that equation.  

#1 is NOT.

#2 IS, because -6x + 5 is the same as 5 - 6x.

#3 is NOT.

#4 is NOT.

#5 is NOT.

#6 is NOT.

It looks like #2 is the only one.

4 0
3 years ago
Dean paid 27.00 for 4 movie tickets find the unit rate and put it as a fraction
LenaWriter [7]
27.00/4= $6.75 for each ticket. 

6.75/27.00?
8 0
3 years ago
Write the slope-intercept form of the equation of each line.
gregori [183]

Greetings!

Answer:

2y = x - 6

Step-by-step explanation:

First, we must find the slope of the current equation.

This is the number in front of the x.

Seeing as this is -2x, the slope of this line is -2

When finding the slope of a line perpendicular, you need to find the \frac{-1}{slope}

So, in this case it is:

\frac{-1}{-2}

The negatives cancel out which leave \frac{1}{2}

So the gradient is \frac{1}{2}


Now, to find the equation of a line, you need to use:

y - y1 = m(x - x1)

Where ya and x1 are the values in the coordinates (2 , -2)

So y1  = -2, x1 = 2, and m is a half. Plug these values in:

y - - 2 = \frac{1}{2}(x - 2)

We need to get rid of the half so we multiply the whole equation by 2:

2y - - 4 = (x - 2)

The minus and the negative turn into a positive:

2y + 4 = x - 2

And now simply move the +4 over to the other side, making it a negative:

2y =  -2 - 4 + x

Simplify:

2y = x - 6

<h3>So the equation of the line is 2y = x - 6</h3>
<h2>Hope this helps!</h2>
5 0
3 years ago
The ratio of w to x is 4 to 6. the ratio of y to x is 1 to 3. what is the ratio of w to y?
AlekseyPX

Answer:

2:1

Step-by-step explanation:

w:x = 4:6

y:x = 1:3

if w = 4 and x = 6, y = 1/3x = 2

If w = 4 and y = 2, then the ratio is;

w:y = 2:1

6 0
3 years ago
Find a degree 3 polynomial with real coefficients having zeros 3 and 3−3i and a lead coefficient of 1. Write P in expanded form.
LekaFEV [45]

Answer:

P =  x³ − 9x² + 36x − 54

Step-by-step explanation:

Complex roots come in conjugate pairs.  So if 3−3i is a zero, then 3+3i is also a zero.

P = (x − 3) (x − (3−3i)) (x − (3+3i))

P = (x − 3) (x − 3 + 3i) (x − 3 − 3i)

P = (x − 3) ((x − 3)² − (3i)²)

P = (x − 3) ((x − 3)² + 9)

P =  (x − 3)³ + 9 (x − 3)

P =  x³ − 9x² + 27x − 27 + 9x − 27

P =  x³ − 9x² + 36x − 54

6 0
3 years ago
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