A teacher informs her cell biology class (of 500+ students) that a test was very difficult, but the grades would be curved. Scores on the test were normally distributed with a mean of 37 and a standard deviation of 5. The maximum possible score on the test was 100 points. Because of partial credit, scores were recorded with 1 decimal point accuracy. (Thus, a student could earn a 37.6, but not a 36.77.) The grades are curved according to the following scheme. Find the numerical limits for each letter grade. Letter Scheme Interval A Top 15% B to C D F Scores above the bottom 74% and below the top 15% Scores above the bottom 26% and below the top 26% Scores above the bottom 15% and below the top 74% Bottom 15%

Q: 417 t.

A:

Q: d eCosh dx eCosh

A: We need to prove

Q: fr рор pår (1+ (1 + ln r)

A:

Q: 3+ dx

A:

Q: b) S dx Vx

A:

Q: 1 dx V3x (3–9x)

A: To evaluate the given integral

Q: 1 3 dr Ip %3D

A: In this question we have to find Integration.∫ax=axln+C Formula Used,

Q: 寸 dx. 2. 11+ズ

A:

Q: х dx е 2

A:

Q: 1 -dx V 9x² + 18x + 45 2

A:

Q: dy +Zy =0 du

A: Given: dydx+2y=0   We know that; ∫1ax+bdx=1alnax+b+C And ∫a·fxdx=a·∫fxdx, where 'a' is the constant.…

Q: 2. 2 PCn):芝(-リ 2h %3D j = 1

A:

Q: 4/5 v = 40  v=

A: Given that, the equation is

Q: 2ez 2 da = eAr

A: Topic = Integration

Q: 100 dx 4.

A: The given integral is I=∫0100dx To evaluate the integral

Q: 13h dn.

A:

Q: Eval the Pt: dx

A:

Q: dx -(r+

A: We have to evaluate the following integral: ∫dx4-x+22

Q: dx (き-4e-)

A: We have to find the given integral

Q: dz

A:

Q: Evaluat dx (b) 2.6 m2

A:

Q: 1 8.) d.x (x2 + 16)3/2

A: We have to find

Q: dx 4. 1- 2cosx

A: The integration of the 1/(1-2cosx).

Q: 3 т2 dm )2 т3-2

A: NOTE: Refresh your page if you can't see any equations. . ...............(1) substitute…

Q: Vx2–25 dx

A:

Q: 2-dy dy. y2 dx 12 ナ /2

A: We have to solve the given equation. The given equation is 2-dydX=y2X2+yX+1    ......(1)

Q: SVī dx

A:

Q: (5a.4) dn 1 (2,2) (a?-x +1

A:

Q: dx. x2 V1+ x2 Evaluate

A:

Q: If a ib and b i y, then b y

A: Given, Lines a, b, x, y  and  z a∥b b⊥y The, we have to find the correct option.

Q: find dy/dn in5 フx 34+2

A: Since you have posted multiple question We solve only first question  for reaming question post…