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dolphi86 [110]
3 years ago
11

If x=1 by 2 root 7, then find the value of x square minus x by 2 root 7 plus 1

Mathematics
1 answer:
Anna [14]3 years ago
4 0

Answer:

the answer is 1

Step-by-step explanation:

x2 equal to 1 by 28 and xby 2root7 equal to 1by 28 so are neglected

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A textbook store sold a combined total of 477 sociology and math textbooks in a week. The number of sociology textbois sold was
denpristay [2]

Answer:

The correct answer is 218 math textbooks and 259 sociology textbooks.

Step-by-step explanation:

To solve this problem, we can make a system of equations. Let the number of sociology textbooks sold be represented by the variable "s" and the number of math textbooks sold be represented by the variable "m". Using these variables, we can make two equations:

s + m = 477

m + 41 = s

There are many ways to solve this system of equations. One approach we can take is substituting the value for s given by the second equation into the first equation. This is modeled below.

s + m = 477

(m + 41) + m = 477

Combining like terms on the left side of the equation yields:

2m + 41 = 477

Subtracting 41 from both sides of the equation gives us:

2m = 436

Finally, dividing both sides of the equation by 2 gives us:

m = 218

To solve for the number of sociology textbooks, we can substitute into either of our original equations.

m + 41 = s

(218) + 41 = s

s = 259

Therefore, your answer is m = 218 and s = 259, or 218 math textbooks and 259 sociology textbooks were sold.

Hope this helps!

6 0
3 years ago
Can someone help me with this
yKpoI14uk [10]

Answer:

i think you should get brainly tutor even if you cant afford it you can use the free trail to see if you like it they could help you with that give the answer and an explanation

Step-by-step explanation:

5 0
3 years ago
Please help will Mark brainliest
zepelin [54]

Answer:

3.v-4=6

v=6+4

v=10

6.y-32=-1

y=-1+32

y=31

9.-1=t+(-19)

-1=t-19

-1+19=t

18=t

12.u+(-5)=-15

u-5=-15

u=-15+5

u=-10

15.47=w-(-8)

47=w+8

47-8=w

39=w

21.18f=-216

f=-216/18

f=-12

24.96=-24a

96/-24=a

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27.-84=d/3

-84*3=d

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30.81=1/6*n

81=n/6

81*6=n

486=n

33.5/9*p=-10

5p=-10*9

p=-90/5

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5 0
3 years ago
Can someone help me with this one
bonufazy [111]

Answer:

x(2x+1)(x-2)

Step-by-step explanation:

x(2x^2-3x-2)

x(2x^2-4x+x-2)

x[2x(x-2)+1(x-2)]

x(2x+1)(x-2)

3 0
3 years ago
Can someone verify her answer please
Kamila [148]

Answer:

Yep, she got it correct.

Step-by-step explanation:

Hope this helped.

7 0
3 years ago
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