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3 years ago

I NEED HELP.. :( Someone please help me with this edge unity question

Mathematics

1 answer:

nasty-shy [4]3 years ago

7 0

Answer:

I think its a,c,d,f, and g

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Some please help I’ll give you Brainliest

Allisa [31]

Answer: line N

Lenght of XY: 3

Step-by-step explanation:

The line N splits <u>XY</u> into two parts

5x+8=9x+12

-9x on each side

-4x+8=12

-8 on each side

-4x=4

divide by -4 on each side

x=-1

8 0

3 years ago

Two trains are moving towards each other. One train moves at a speed of 50 mph, and the other train travels at 60 mph. How soon

Margaret [11]

I think that they will meet in 3 hours and 11 min but I’m not too sure

4 0

3 years ago

Read 2 more answers

Write down the quadratic equation whose roots are $x = -7$ and $x = 1,$ and the coefficient of $x^2$ is 1. Enter your answer in

pav-90 [236]

<h2>Steps:</h2>

So firstly, since we know that the coefficient of x² is 1, this means that this is our base equation:

y = x² + bx + c

Now, since we know that the roots are -7 and 1, set y = 0 and set x = -7 and 1 and simplify:

$0=(-7)^2+b(-7)+c\\0=49-7b+c\\-49=-7b+c\\\\0=1^2+b(1)+c\\0=1+b+c\\-1=b+c\\\\-49=-7b+c\\-1=b+c$

Now with this, we can set up a system of equations to solve for b and c. For this, I will be using the elimination method. For this, subtract the 2 equations:

$\begin{alignedat}{2}-49&=-7b+c\\-(-1&=b+c)\\-48&=-8b\end{alignedat}$

Now that the c variable has been eliminated we can solve for b. For this, divide both sides by -8 and your first part of your answer is b = 6.

Now that we know the value of b, plug it into either equation to solve for c:

$-49=-7(6)+c\\-49=-42+c\\-7=c\\\\-1=6+c\\-7=c$

<h2>Answer:</h2>

<u>Putting it together, your final answer is x² + 6x - 7 = 0.</u>

4 0

3 years ago

For problems 11-14, identify the property shown. 11. 16×p=16.

zalisa [80]

Answer:

Step-by-step explanation:

11. identity property

12. associative property

13. commutative property

14. zero property

4 0

3 years ago

Question 9 of 10

Aleks04 [339]

Answer:

A is the answer

// x = -2(y + 3)2-1

4 0

2 years ago