The average score on mid term examination of 25 students was 78.8 out 100

Mathematics

1 answer:

larisa86 [58]2 years ago

8 0

I honestly have no clue good luck I’m just trying to get points so I can use the app

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A rectangular whiteboard has an area of x^2-12x-45. Which expression could

Firdavs [7]

Answer: I Think it is b

Step-by-step explanation:

4 0

2 years ago

Quadrilateral ABCD with vertices A(4, 3), B(4, -2), C(-4, -2) and D(-4, 3) is a rectangle, find the length of the diagonals.

marin [14]

Distance between two points P(x1,y1), Q(x2,y2):
D=sqrt((x2-x1)^2+(y2-y1)^2)

Polygons are generally named in order along the perimeter, so that for a rectangle ABCD, AC or BD are diagonals.
Here, we need the distance between points A(4,3) and C(-4,-2)
Applying the above formula for distance between two points,

D=sqrt((4-(-4))^2+(3-(-2))^2)=sqrt(8^2+5^2)=sqrt(64+25)=sqrt(89)

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2 years ago

Sandra saves 10% of her salary for retirement. This year her salary was $2,000 more than in the previous

NNADVOKAT [17]

You should divide 48,000 by 12 which is 4000+ 2000=6000
So it should be $6000
Hope this is right I’m not 100%

6 0

2 years ago

Please someone help I’ll give u more points help quick!

Flura [38]

Can you give me more information about it please

7 0

2 years ago

Hey can you please help me posted picture of question

Paladinen [302]

We have to take out the greatest common factor from the given polynomial to factorize the expression. If you observe the terms of the polynomial, the greatest factor that is common to all the terms is $4 x^{4}$ . So taking it out as common, the factorization of the polynomial will be:

$16 x^{9} -36 x^{5}-8 x^{4} \\ \\ 
=4 x^{4}(4 x^{5}-9x-2)$

So the option C gives the correct answer

7 0

2 years ago