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qaws [65]
3 years ago
12

Help pleaseeeeeeee its more than one answer =)

Mathematics
1 answer:
Licemer1 [7]3 years ago
4 0
Density curves go up. So D and E are the best answers.
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Two trains leave stations 456 miles apart at the same time and travel toward each other. One train travels at 105 miles per hour
love history [14]

Answer:

let x=distance 105 mph train traveled

(456-x)=distance 85 mph train traveled

Travel time = distance/speed (equal in both directions)

 

x/105=(456-x)/85

85x=105*456-105x

190x=105*456

x=105*456/190=252 miles

travel time=252/105=2.4 hrs

ans:

The two trains will meet in 2.4 hrs

Step-by-step explanation:

there brainliest pls

6 0
2 years ago
Hi friends,
Mkey [24]

Answer : 19.6cm

I hope this helps you! Have a good day!

6 0
2 years ago
James creates the table shown to represent the function f(x)=x^2+8x+12.
Rasek [7]
The table tells you that f(x)=0 at x=-6 and -2
6 0
3 years ago
Does anyone understand this.
Elodia [21]
Its C. The point is at 3 and goes down, therefore C.
8 0
2 years ago
Read 2 more answers
Form a polynomial f(x) with real coefficients having the given degree and zeros.
dimaraw [331]
There are many polynomials that fit the bill,
f(x)=a(x-r1)(x-r2)(x-r3)(x-r4)  where a is any real number not equal to zero.
A simple one is when a=1.
where r1,r2,r3,r4 are the roots of the 4th degree polynomial.
Also note that for a polynomial with *real* coefficients, complex roots *always* come in conjugages, i.e. in the form a±bi  [±=+/-]

So a polynomial would be:
f(x)=(x-(-4-5i))(x-(-4+5i))(x--2)(x--2)
or, simplifying
f(x)=(x+4+5i)(x+4-5i)(x+2)^2
=x^4+12x^3+77x^2+196x+164   [if you decide to expand]
6 0
3 years ago
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