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3 years ago

Factor a2 + 4ab - 45b2. Which one of these is a factor of the trinomial?

1 answer:

4 0

I dont think math can ever be fun:rubeyes:

x2 + 14x + 49

a2 +3a - 10

p2 - 2p + 1

if u can explain those itll be great:up:jen11-07-06, 03:04 PMwheres the equals signs?

well collect the terms... which means put all the a's together and al the x's and so on

for example 2a + 3a = 5a

its doesnt matter if u write it 2a or a2 it means the same thing

the basics is that the letters just represent another amount just imagine for now that the a's reresent chairs
so 2a (two chairs ) plus 3a (three chairs) is equal to 5a (5 chairs)

i hope thats what ur after as i cant really see any equals signs so for the moment i can only say collect the terms together

2x + 14x + 49 = 16x + 49 and leave at that for now

but what does the question actually ask for? does it ask for simplyfying or to find the value of x? and a? and p?

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Please help! I need to tell whether x and y are in a proportional relationship and I need to write an equation that represents t

Alexeev081 [22]

Answer:

It is a proportional relationship

Step-by-step explanation:

To see if multiple ratios are proportional, you could write them as fractions, reduce them, and compare them. If the reduced fractions are all the same, then you have proportional ratios.The equation that represents a proportional relationship, or a line, is y=kx, where k is the constant of proportionality.

Hope this helps

the constant of proportionality is 2

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3 years ago

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alukav5142 [94]

The answer is 91.77

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4 years ago

Here, take some dino nuggies.

Anvisha [2.4K]

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3 years ago

Read 2 more answers

Solve the given portion 10/a= 15/24 x=?

kramer

Answer:

$a = 16.$

Step-by-step explanation:

$\frac{10}{a} = \frac{15}{24}$

Then

$15 \times a = 24 \times 10$

$a = 240 \div 15$

Therefore

$a = 16.$

3 0

3 years ago

The sum of two numbers is 13. Two times the first number minus three times the second number is 1. If you let x stand for the fi

notsponge [240]

<h2>Steps:</h2>

So for this, we will be setting up a system of equations with the information we have:

$x+y=13\ \textsf{"The sum of two numbers is 13."}\\2x-3y=1\ \textsf{"Two times the first number minus three times the second number is 1."}$

Now we have our system of equations set up. Next, I will be using the substitution method to solve this system. So firstly, subtract y on both sides of the first equation:

$x=13-y\\2x-3y=1$

Now, substitute x for (13 - y) in the second equation and solve for y as such:

$2(13-y)-3y=1\\26-2y-3y=1\\26-5y=1\\-5y=-25\\y=5$

Now that we have the value of y, substitute it into either equation to solve for x:

$x+5=13\\x=8\\\\2x-3(5)=1\\2x-15=1\\2x=16\\x=8$

<h2>Answer:</h2>

<u>In short, the first number (x) is 8 and the second number (y) is 5.</u>

6 0

4 years ago