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Igoryamba
2 years ago
6

What equation has a solution of 2/3 for x

Mathematics
1 answer:
Ahat [919]2 years ago
6 0

Answer:

D

Step-by-step explanation:

Hope this helped! Please tell me if I'm wrong!

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Given f(x)=x^3+5x+k, and x+2 is a factor of f(x), then what is the value of k?
Marat540 [252]
3x^3+0x^2-2x+k:x-2=3x^2+6x+10
3x^2-6x^2
6x^2-2x
6x^2-12x
10x+k
10x-20
k+20
Thus k=-20
6 0
3 years ago
Read 2 more answers
What is the slope of (2,-1) and (8,4)
qaws [65]

Answer:

5/6

Step-by-step explanation:

slope = 4-(-1)/8-2 = 5/6

5 0
2 years ago
Richard and Teo have a combined age of 37. Richard is 4 years older than twice​ Teo's age. How old are Richard and​ Teo?
valkas [14]

Answer:

Teo is 11 years old and Richard is 26 years old.

Step-by-step explanation:

Let R be the age of Richard and T be the age of Teo.

<u><em>First set up the equations:</em></u>

The combined age of Teo and Richard is 37:

R+T=37

Richard is four years old than twice Teo's age:

R=2T+4

<u><em>Then, solve the equations:</em></u>

Substitute (2) to (1) and solve for T:

(2T+4)+T=37

3T=11

T=11

Solve for R using (2):

R=2(11)+4

R=22+4

R=26

5 0
3 years ago
So I need someone to asnwer this ASAp since my he is due in 20 minutes. Please help!
dem82 [27]
A)6 ^^^^^^^^^^^^because
5 0
3 years ago
Solve using elimination.<br><br> –9x − 7y = –10<br> 9x + 8y = 5
guapka [62]

Answer:

x=4y

Step-by-step explanation:

mathpapa

7 0
2 years ago
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