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krek1111 [17]
3 years ago
14

Factor the following standard form trinomials in x*2 + bx + c form. First look for the number pairs that multiply to c (sign inc

luded). Second, see which of those pairs ALSO adds up to b [sign included]. Third, use those numbers to write the factored form in (x + r) (x + s) form. *work please*​

Mathematics
1 answer:
nevsk [136]3 years ago
6 0

Answer:

Step-by-step explanation:

e)\ x^2+4x-12,\ ab=-12,\ a+b=4,\ a,b=6,-2,\ (x+6)(x-2)\\ \\ f)\ x^2-9x+20,\ ab=20,\ a+b=-9,\ a,b=-4,-5,\ (x-4)(x-5)\\ \\ g)\ 3x^2-21x+30,\ 3(x^2-7x+10)\ a,b=-2,-5,\ 3(x-2)(x-5)\\ \\ h)\ 20x^3-40x^2-60x,\ 20x(x^2-2x-3),\ a,b=-3,1,\ 20x(x-3)(x+1)

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Can someone explain major and minor arcs in relation to circles.
Lelechka [254]
A Major Arc within a circle is something that that is more than half of the circle, and therefore, larger than the minor arc. The way in which this could be used in an example is; Tony has a pizza with 8 slices, 6 of these slices are pepperoni and 2 are chilli beef. In this case, the pepperoni slices are the major arc and the chilli beef slices are the minor arc.
The Major Arc will always be bigger than the minor arc- whether this is 181 degrees to 179, or whether this is 350 degrees to 10 degrees.
The Minor Arc is always the smallest arc, and this can be explained by; Benedict has an apple pie that has 10 slices, between him and his friends, they have eaten four slices. In this case, they have eaten the 'minor arc'
There is a picture attached, and this is the examples of a major and a minor arc.
Hope this has been able to help you :) 

3 0
4 years ago
Whitney conducted a survey of grocery store customers to determine the most popular brand of bread. Of the 72 people she surveye
HACTEHA [7]
Sample Size = 61

Sorry if it is wrong, but I do believe it is correct

Hope it Helps!
8 0
3 years ago
Find the HCF of 48 and 25​
Sever21 [200]
Factors of 25 are 1, 5, 25
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3 0
3 years ago
7 friends share 4 pizzas equally how much pizza did each friend get
trapecia [35]

Answer:

3 is what i think


Step-by-step explanation:


4 0
3 years ago
Help please!<br><br> Help would be appreciated.
kotegsom [21]

Answer:

\displaystyle 157,5

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\displaystyle 3\frac{3}{4}\:quibs = 1\:slep \\ \\ 3\frac{3}{4} \times 42 = 157\frac{1}{2} = 157,5

I am joyous to assist you anytime.

5 0
4 years ago
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