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3 years ago

22·23 is equal to?? I've been on this question for like 30 minutes lol

Mathematics

1 answer:

Rudik [331]3 years ago

7 0

Take 22 * 23 and it is equal to 506

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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

For $x=0.250636 U"(x)=7.8655>0$ Stable

7 0

3 years ago

Find the sum of the prime numbers that are between 12 and 42.

Zielflug [23.3K]

Answer:

Step-by-step explanation:

list of prime #s between 12 and 42:

13, 17, 19, 23, 29, 31, 37, 41

now add them up:

13+17+<em>19</em>+<u>23</u>+<em>29+31</em>+<u>37</u>+<em>41</em>

30+60+60+60

90+120

210

3 0

3 years ago

Read 2 more answers

Divide. Write the quotient in lowest terms. 4\dfrac{2}{3} \div 7 =4 3 2 ÷7=4, start fraction, 2, divided by, 3, end fraction,

velikii [3]

Answer:

$\dfrac{2}{3}$

Step-by-step explanation:

Given the quotient: $4\dfrac{2}{3} \div 7$

Step 1: Write $4\dfrac{2}{3}$ in improper fraction.

$4\dfrac{2}{3}=\dfrac{14}{3}$

Therefore:

$4\dfrac{2}{3} \div 7=\dfrac{14}{3} \div 7$

<u>Step 2:</u> Change the division sign to multiplication by taking the reciprocal of 7

$\dfrac{14}{3} \div 7 =\dfrac{14}{3} X\dfrac{1}{7} \\$Simplify\\\\=\dfrac{2}{3}$

3 0

3 years ago

Calculate the slope of a line that passes through the points (9, 3) and (19,-17).

Zigmanuir [339]

Answer:

-2.6 is the slope.

<h3><u>Step-by-step explanation:</u></h3>

Slope = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$
=> $\frac{-17-9}{19 - 9}$
=> -26/10
=> -2.6

<h3><u>Conclusion:</u></h3>

Therefore, <u>-2.6 is the slope.</u>

Hoped this helped.

$BrainiacUser1357$

5 0

2 years ago

In the equation x2 +10x + 24 = ( x + a) ( x + b), b is an integer. Find algebraically all possible values of b.

kramer

Multiply
(x+a)(x+b) = x^2 + bx + ax + ab
looking at; x^2 + 10x + 24
can you see that

ab = 24
bx + ax = 10x
then
a + b = 10

use substitution: a = 10 - b

(10-b)b = 24
10b - b^2 = 24
-b^2 + 10b -24 = 0
now find the values for b using the quadratic equation. I'm on my phone so you'll have to plug the numbers in. let me know if you have any questions.

8 0

3 years ago