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Assoli18 [71]
3 years ago
14

I WILL GIVE U BRAINLIEST!

Mathematics
1 answer:
Virty [35]3 years ago
8 0
The awnser is a 2.49 • 107 tons
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I WILL RATE YOU BRAINLIEST PLEASE HELP!!!!! I tried to put in .7 for the first one but that didn't work
drek231 [11]
The answer is the answer is 0.7 not just .7
4 0
3 years ago
Use the Intermediate Value Theorem to show that the polynomial f(x)=x^3+x^2-2x+5 has a real zero between -3 and -1.
Triss [41]

You need to note first two things.

1. The function f(x) need to be a continuous function on [-3,-1] (indeed f(x) is a polynomial function, is continuous on every real number x)

2. Take the closed interval [-3,-1]

Now, evaluate f(-3) and f(-1).

f(-3) = (-3)^3 + (-3)^2 -2(-3) + 5 = -27 + 9 +6 + 5 = -7 < 0\\f(-1) = (-1)^3 + (-1)^2 -2 (-1) + 5 = -1 + 1 +2 + 5 = 7 >0

So, we have f(-3) < 0  and f(-1). So,  f(-3) < 0 < f(-1), then by the Intermediate Value Theorem, there exist c \in (-3,-1) such that f(c) = 0.

6 0
3 years ago
What is the product of (3a 2)(4a2 â€"" 2a 9)? 12a3 âÂ’ 2a 18 12a3 6a 9 12a3 âÂ’ 6a2 23a 18 12a3 2a2 23a 18.
Kay [80]

The product of (3a + 2)(4a^2 - 2a + 9) will be  12a^3 + 2a^2 + 23a + 18.

Given expression,

(3a + 2)(4a^2 - 2a + 9).

We have to find the product of (3a + 2)(4a^2 - 2a + 9).

Now using distributive property, we get

3a(4a^2) - 3a(2a) + 3a(9) + 2(4a^2) - 2(2a) + 2(9)

12a^3 - 6a^2 + 27a + 8a^2 - 4a + 18

12a^3 + 2a^2 + 23a + 18

 

Hence the product of (3a + 2)(4a2 - 2a + 9)  is 12a^3 + 2a^2 + 23a + 18.

Thus the correct option is (D). 12a^3 + 2a^2 + 23a + 18.

For more details on distributive property follow the link:

brainly.com/question/13130806

7 0
3 years ago
Enter the distance between points (4, -7) and (-5,5) on the coordinate plane.<br> units
Aloiza [94]

Answer:

piontttttsssssssss

Step-by-step explanation:

3 0
4 years ago
Plz plz plz plz help plz no LINKS
Viefleur [7K]
(2.7, 2.3)
(2, 1.7)
(1.7, 1.3)
again may be wrong
5 0
3 years ago
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