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3 years ago

Help please!! Arithmetic Sequences

Mathematics

2 answers:

ikadub [295]3 years ago

8 0

Answer:

0.1

Step-by-step explanation:

the common difference between the numbers are 0.1

kumpel [21]3 years ago

5 0

Answer:

0.1 is the answer...............

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Find all values of c such that c/(c - 5) = 4/(c - 4). If you find more than one solution, then list the solutions you find separ

Deffense [45]

Answer:

$\large\boxed{\bold{NO\ REAL\ SOLUTIONS}}\\\boxed{x=4-2i,\ x=4+2i}$

Step-by-step explanation:

$Domain:\\c-4\neq0\ \wedge\ c-5\neq0\Rightarrow c\neq4\ \wedge\ c\neq5\\\\\dfrac{c}{c-5}=\dfrac{4}{c-4}\qquad\text{cross multiply}\\\\c(c-4)=4(c-5)\qquad\text{use the distributive property}\\\\c^2-4c=4c-20\qquad\text{subtract}\ 4c\ \text{from both sides}\\\\c^2-8c=-20\qquad\text{add 20 to both sides}\\\\c^2-8c+20=0\qquad\text{use the quadratic formula}$

$\text{for}\ ax^2+bx+c=0\\\\\text{if}\ b^2-4ac0,\ \text{then the equation has two solutions}\ x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

$x^2-8x+20=0\\\\a=1,\ b=-8,\ c=20\\\\b^2-4ac=(-8)^2-4(1)(20)=64-80=-16$

$\text{In the set of complex numbers:}\\\\i=\sqrt{-1}\\\\\text{therefore}\ \sqrt{b^2-4ac}=\sqrt{-16}=\sqrt{(16)(-1)}=\sqrt{16}\cdot\sqrt{-1}=4i\\\\x=\dfrac{-(-8)\pm4i}{2(1)}=\dfrac{8\pm4i}{2}=\dfrac{8}{2}\pm\dfrac{4i}{2}=4\pm2i$

6 0

3 years ago

Read 2 more answers

Value of m varies directly as value of n and n=5 when m=12. What is n when m=18?

Shkiper50 [21]

Simplify the problem down, so:

m = 12 & n = 5
m = 6 & n = 2.5 (divided each number by 20)

Now m is a factor of 18. Multiply each number by 3.
Answer: m = 18 & n = 7.5

7 0

4 years ago

Read 2 more answers

Can someone help please?

natima [27]

Question 4 is C and im not sure about the other questions

8 0

3 years ago

I need help with this one question for my Canadian history assignment.

Mademuasel [1]

LOL this is funny u expect people to help u yet when u answer them apparently its spamming so u can gain points is that right?

perhaps i should spam u i would if i were as immature as u so ill give u an answer.. like u should've done rather than spam me OH AND FYI I REPORTED YOU THIS SITE IS MADE FOR HELPING OTHERS OR BEING HELPED NOT GAINING POINTS LIKE A VIDEO GAME.

https://www.thecanadianencyclopedia.ca/en/article/social-and-welfare-services hope that helps and sorry i couldn't give u a straight answer because i couldn't find anything that talked about a list of social benefits/governments but this might work.

7 0

4 years ago

The area of the following triangle is...?

ArbitrLikvidat [17]

Answer:

A) 24

Step-by-step explanation:

Area of a triangle formula:

A = 0.5bh

Given:

b = 12

h = 4

Work:

A = 0.5bh

A = 0.5(12)(4)

A = 6(4)

A = 24

5 0

3 years ago