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Georgia [21]
3 years ago
7

What is the sum of the polynomials?

Mathematics
2 answers:
rewona [7]3 years ago
8 0
7x^2-9x-5 hope it helps
Lorico [155]3 years ago
3 0
A. is the answer look at the attached photo

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Is x^2+y^2=16 a function
valentinak56 [21]

Answer:

it is a Function

Step-by-step explanation:

because it doesnt fail the vertical test

4 0
4 years ago
Marissa wrapped 5 presents in 15 minutes at that rate how many Presents Would She wrap in 8 hours
vfiekz [6]

Answer:160 presents

Step-by-step explanation:

3 presents per minute

20 presents in one hour

20•8= 160

4 0
4 years ago
Read 2 more answers
Need help with this thanks
lorasvet [3.4K]

Answer:

126/420

Step-by-step explanation:

you cross multipy 3/10 and x/420 then you get 1260=10x, then you divide by 10 and get 126

5 0
3 years ago
What are the coordinates of the orthocenter of △JKL with vertices at J(−4, −1) , K(−4, 8) , and L(2, 8) ?
PilotLPTM [1.2K]

ANSWER


The orthocenter is (-4,8)


<u>EXPLANATION</u>


The orthocenter is  the point of intersection of all the altitudes of a triangle.

If it is a right angle triangle then the orthocenter is the point at which the <em>right angle is made.</em>

If it is not a right angle triangle, then you have to find the equations of any two of the altitudes and solve simultaneously.

So you must first check to see if it is a right angle triangle that way you do not have to do bunch work.


The given triangle has vertices J(-4,-1), (-4,8), and L(2,8).


Slope_{JK}=\frac{8--1}{-4--4}


Slope_{JK}=\frac{8+1}{-4+4}


Slope_{JK}=\frac{9}{0}


Since the denominator is zero, the slope is undefined.

If the slope of a straight line is undefined, then that line is <em>parallel to the y-axis</em>. In other words, it is a <em>vertical line</em>.


Slope_{JL}=\frac{8--1}{2--4}


Slope_{JL}=\frac{8+1}{2+4}


Slope_{JL}=\frac{9}{6}


Slope_{JL}=\frac{3}{2}



Slope_{KL}=\frac{8-8}{2--4}


Slope_{KL}=\frac{0}{2+4}


Slope_{KL}=\frac{0}{6}


Slope_{KL}=0


if a straight line has a slope of zero, that line is parallel to the <em>x-axis</em> or it is <em>horizontal.</em>


From the slopes we can see that side KL of the triangle is horizontal and side JK is vertical. This two sides will meet at right angles at K.

See graph.

Therefore the coordinates of K, (-4,8) is the orthocenter of the given triangle.







3 0
3 years ago
(10,-3) (3,2) how do i do this
sweet [91]

Answer:

To graph this on a coordinate plane, you have to go left 10 and down to -3. On 3,2, you go right 3 then up 2.

Step-by-step explanation:

6 0
3 years ago
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