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3 years ago

5x to the 3rd power y+35x to the 2nd power y+50xy=

1 answer:

6 0

$5x^3y+35x^2y+50xy=(5xy)(x^2)+(5xy)(7x)+(5xy)(10)\\\\=5xy(x^2+7x+10)=5xy(x^2+5x+2x+10)\\\\=5xy[x(x+5)+2(x+5)]=5xy(x+5)(x+2)$

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Factor the following: 2x2+9x+9

ryzh [129]

Answer: (2x+3)(x+3)

Step-by-step explanation:

Looking at this, you know that it must look something like

(? +3)(?+3) , because they must multiply to 9. The ?s must multiply to 2x^2, the most plausible values being 2x and x, ending us up with (2x+3)(x+3)

8 0

2 years ago

Read 2 more answers

Equation of the graph

natka813 [3]

Answer:

A and C

Step-by-step explanation:

It can not be D, since that will mean that the line is perfectly horizontal, with 0 as its slope.

It can be C, since the equation's slope is positive and has a negative y-intercept, like the graph.

Changing around A gives us y = 2x - 3. That has a positive slope and a negative y-intercept, like the graph. So, A is a possibility.

Changing around B gives us y = ²/₃x + 3. This has a positive slope, but also a positive y-intercept, so B can not be the answer.

4 0

3 years ago

Jen Butler has been pricing Speed-Pass train fares for a group trip to New York. Three adults and four children must pay $ 79.

xxMikexx [17]

Answer:

Price of the adult's ticket = $13

Price of a child's ticket = $ 10

Step-by-step explanation:

Given:

Cost of train fares for Three adults and four children = $79

Cost of train fares Two adults and three children = $ 56

To Find:

Price of the adult's ticket and the price of a child's ticket =?

Solution:

Let the cost of one adult's ticket be x and

Let the cost of one child's ticket be y

Then

Three adults and four children must pay $ 79 be

3x + 4y = 79-----------------------------------------------(1)

Two adults and three children must pay $56

2x + 3y = 56----------------------------------------------(2)

multiply eq(1) by 2, we get

6x + 8y = 158----------------------(3)

multiply eq(2) by 3, we get

6x + 9y = 168----------------------(4)

Subracting (3) from (4)

6x + 9y = 168

6x + 8y = 158

(-) (-) (-)

------------------------------

0x + y = 10

------------------------------

y=10

Now substitute the value of y in eq (1) to get the value of x

3x + 4(10)= 79

3x + 40 = 79

3x = 79 - 40

3x = 39

x = $\frac{39}{3}$

x= 13

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3 years ago

In the quadratic equation 22 + 5x + 6 = 0

Inessa05 [86]

A=0 b=5 c=6 esaaa es!!!!!!

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2 years ago

Graph the triangle with the following coordinates. Find the area of the triangle 2 different ways.

stira [4]

what triangle you have a picture?

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3 years ago