 Lv 17 points

# ?

a. What is the order from least to greatest of this set of absolute value expressions?

|-2|, |4|, |-5+12|, |8(-1)+5|, |8-7(2)|

b. What is the result when |(2^3)-5|+|3-5|-|4+4| is evaluated?

• ### which of the following equations could be used to determine x?

The time it takes for a canoe to go 5 miles upstream, and then 5 miles back downstream is 3 hours. The current in the river is 1 mile per hour. If x represents the speed of the canoe in still water, which of the following equations could be used to determine x?

a. 5/x+1 + 5/x-1 =3

b. x+⅕ + x-⅕ =3

c. 5/x+1 +3 = 5/x-1

d. 4/x+1 + 4/x-1 =5

Mathematics2 years ago
• ### Fully simplify the rational expression (m^2-16)/(m^2-8m+16)•(m^2-9m+20)/(m^2-7m+12)÷(m^2-25)/(m^2-6m+9), where m≠-5,3,4,5.?

(m-3)/(m+5)

1/(m-4)(m-3)

1/(m-4)(m+5)

(m+4)(m-3)/(m-4)(m+5)

• ### Triangle ABC has dimensions a=17 m, b=15 m, and right triangle A= 42°?

1. Determine how many triangles can be constructed using the given dimensions

2. Solve △ABC. Round all answers to nearest tenth.

• ### A rectangular flower garden is surrounded by a sidewalk of uniform width.Together, the garden and sidewalk have dimensions of 15 ft by 20 ft?

a. Write a quadratic function that represents the area of the flower garden

b. What are the domain and range of this function

c. What is the width of the sidewalk if the area of the flower garden is 150 ft^2 ?

• ### help with 2 math questions? Please! Will give pts to best answer... thank you :)?

1. The point (-5,2) is on the terminal arm of right triangle A. Which set of primary trigonometric ratios correctly correspond to this point?

a. Sin A= -(5√29)/29, cos A= (2√29)/29, and tan A= -(⅖)

b. Sin A= (2√29)/29, cos A= -(5√29)/29, and tan A= -(⅖)

c. Sin A= -(5√29)/29, cos A= (2√29)/29, and tan A= -(5/2)

d. Sin A= (2√29)/29, cos A= (5√29)/29, and tan A= -(5/2)

2. The point (5,0) is on the terminal arm of right triangle θ. Which statement best describes the value of sinθ?

1. Sinθ= 0 because θ=0°

2. Sinθ= 1 because θ=90°

3. Sinθ= 0 because θ=180°

4. Sinθ= -1 because θ=270°

• ### Help with these two precalculus questions?

1. Refer to the first link. What is the simplified form of this rational expression?

A. (7x+2) / (4x-7)(x-1), x≠4/3, 1, 3

B. (x-2) / (2x-1)(x-1), x≠4/3, 1, 3

C. ( (13x^2-18x-8) / ((3x-4)(x-1)(x-3) , x≠4/3,1,3

D. (-5x^2-6x+8) / (3x-4)(x-1)(x-3), x≠ 4/3,1,3

2. refer to the second link. What is the answer to this question?

https://s3.amazonaws.com/iedu-attachments-question...

https://s3.amazonaws.com/iedu-attachments-question...

• ### Which of the following rational expressions is the simplified version of the expression (2x^2-7x-4)/(5x^2-16x+3) • (2x^2-7x+3)/(5x^2-21x+4)?

(4x) / (5x-1), x≠1/5 , 3, 4

(4x^2-1) / (5x-1), x≠1/5 , 3, 4

(4x^2-1) / (25x^2-10x+1), x≠1/5 , 3, 4

(4x^2-1) / (25x^2-1), x≠1/5 , 3, 4

• ### The point (-2,4) is on the terminal arm of an angle in standard position. Show a diagram along with 3 other angles in standard position.?

** all with the same reference angle.

• ### Precalculus help? 2 Questions?? Would be very much appreciated.?

1. If |p| +p ≠ 0, then

a. P < 0

b. P≤ 0

c. P>0

d. P≥0

2. Will √x^2 and |x| always have the same value? Explain.

• ### Solve |x^2-6x+5| =2x-2?

1. The equation |x^2-px+5|=7 has real solutions

a. Only when p^2≥48

b. Only when p^2<48

c. For any p-value

d. For no values of p

2. If the range of y= 1/f(x) is {y|y≤-¼ or y>0,yεR}, then the range of y=f(x) may be

a. {y|y≤-4, yεR}

b. {y|y≥-4, yεR}

c. {y|y≥-1/4, yεR}

d. {y|-4≤y≤-¼, yεR}

• ### If the graph of y=f(x), xεR is the same as y= |f(x)|, xεR then?

a. f(x) may be of the form ax+b, a≠0 or of the form ax^2+bx+c, a≠0

b. f(x) may be of the form ax+b, a≠0 but cannot be of the form ax^2+bx+c, a≠0

c. f(x) may be of the form ax^2+bx+c,a≠0, but cannot be of the form ax+b, a≠0

d. f(x) cannot be of the form ax+b,a≠0 or ax^2+bx+c, a≠0

• ### Explain this theory... Biology?

One theory suggests that the dominance of grasses occurred in Alberta in the late tertiary period because of the ability of hoofed animals to digest cellulose

• ### Science: True or false?

a) Fossils of coastal organisms have been found along the eastern edge of the Rocky Mountains

b) The absence of red and grey bands in sedimentary rock from 1.8 billion years ago to the present indicates a lack of oxygen in the atmosphere.

• ### Which of the following is a scalar quanitity?

A. 45 km, north

B. 248 mL

C. 250 km[W]

D.500m[up]

• ### The following are steps in the formation of a double-bond hydrocarbon molecule from a single-bond hydrocarbon molecule. Put them in order.?

1. The closest thing to bond with is the electron from the other carbon atom

2. Two hydrogen atoms leave the carbon chain

3. Twisting occurs to accommodate the double bonds

4. Both carbons bond with each other to form a double bond.

5. Both carbons have an unbonded electron

The correct order of the steps in the formation of a double-bond hydrocarbon molecule from a single-bond hydrogen molecule is:

A. 2,4,1,3,5

B. 1,2,3,4,5

C. 2,5,1,4,3

D. 5,1,4,2,3