2. The scores in a certain math test are normally distributed with a mean of 80 and a standard deviation of 10. The teacher decided to give A's to students with grades exceeding 93. If there are 55 students in class, how many students obtained an A? If the teacher decided to fail a student if he scored 75 below, how many students will failed to the exam?

Q: Solve x^2 +6x ≤ -5. Show your work

A: Solution of equations

Q: simplify (x^5/3 y^-2)^0

A: To Simplify: x53y-20 Concept: Expotential Identity:i. x·yn≡xn·ynii. xmn=xmn, for x≠0 or m≥0iii.…

Q: Multiply - 3xy^2 (x^2 - xy - 1)

A: The given expression to multiply is,

Q: If I have 0=24x-5.19x^2, then I simplify it to 0=x(24-5.19x). How do I proceed to find x from here?

A: The given function is Here, either

Q: differentiate ((x^2) - 1)^2

A:

Q: 36x-8y^2 where X=3 and Y=-6

A: NOTE: Refresh your page if you can't see any equations. . here the given values are  x=3 and y=-6

Q: evaluate Si -14 V16 x² dx

A:

Q: Find the value of the expression: x^2−(a+b)x+ab divide by x^2−(a+c)x+ac  where a = 1.8, b = 4, c =…

A: We have to find the value of the expression: x2−(a+b)x+ab divide by x2−(a+c)x+ac  where a = 1.8, b =…

Q: Solve for X: x^2 + 3x + 5 = 0

A:

Q: find the center point abs radius of x^2-16x-17=o

A: Consider the equation

Q: A square patchwork quilt is to be made with n individual fabric squares in each dimension. Each…

A: Ok, so,  There will be n squares along any side here,  So, side of the big square portion at center…

Q: 5) Simplify: 10x ³/4 x 5x1/4x1/6 3/4-1/12

A: According to question,Given expression,10 x34x-1125x-14x-16

Q: Wasn't solved in a comma seperated form. Please correct

A: The given equation of curve

Q: -x^2= 0

A: Answer

Q: 28x^2-x-2=0

A:

Q: Solve for x and check x/x+2 + 2/x-2 =x+6/x^(2)-4

A: Given information:The given equation is .

Q: Solve for x:  x^4 - 13x^2 + 36=0

A: Given x4-13x2+36=0. We need to solve the above equation.

Q: solution: 4^1-x=3^2x+5

A: