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3 years ago

Pls help :))))))))) uhhhhhhhhh

Mathematics

1 answer:

Deffense [45]3 years ago

8 0

The answers are 3 and -13

You need to plug 3 and -5 into x

By doing this, you get :

12 - 3^2 and

12 - (-5)^2

those expressions equal

12 - 9

12 - 25

So you get

-13

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Decide whether the two expressions are equivalent for each problem below.

Vesnalui [34]

Answer:

Step-by-step explanation:

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3 years ago

How are dot plots, bar graphs, and histograms used to analyze data?

olganol [36]

To Visualize data changes/trends over time.

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3 years ago

A potential energy function is given by U = A x3 + B x2 − C x + D . For positive parameters A, B, C, D this potential has two eq

Ivenika [448]

Answer:

7.8655

Step-by-step explanation:

Given the functionl

$U=Ax^3+Bx^2-cx+D$

Where,

$A=1.45J/m^3\\B=2.85J/m^2\\c= 1.7J/m\\D=0.6J$

We have, replacing,

$U=1.45x^3+2.85x^2-1.7x+0.6$

We need to derivate and verify for stable equilibrum that,

$\frac{d^2 U}{dx^2}>0$

Then,

$U'(x) = 4.32x^2+5.7x-1.7$

Roots in,

$x_1=-1.57008\\x_2=0.250636$

We obtain U"(x), then we have

$\frac{d^2U}{dx}=8.64x+5.7$

For $x=-1.57, U"(x)=-7.86549$ Unestable

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7 0

3 years ago

Helpppp pleaseeee xxxxx

ivolga24 [154]

Answer:

b=7 b=26 b=25

Step-by-step explanation:

8 0

3 years ago

Which numbers are rational?

Dima020 [189]

Answer:

All of them.

Step-by-step explanation:

Rational numbers are defined as the numbers that can be expressed as the ratio of two integers(a/b) where b must be a non-zero number. The rational numbers display a terminating characteristic and they also contain repeating, as well as, recurring digits. All the given numbers are rational as they can be written in the form of p/q.

23.429 = It can be written as a fraction. So, it is a rational number.

10 = 10 is a whole number and it can be written in the form of a/b i.e. 10/1. So, it is a rational number.

13 = 13 also can be written in ration form as 13/1. Therefore, it is also a rational number.

151 = It can be written as 151/1. Hence, it is a rational number.

8/7 = It is already mentioned in the form of a/b. So, it is a rational number.

-4.93 = since it is an integer, it will surely be a rational number.

6 0

3 years ago

Pls help :))))))))) uhhhhhhhhh​

Pls help :))))))))) uhhhhhhhhh