### Select all the expressions that are equivalent to the polynomial below. (4x+5)(-3x-1)A (-16x2 + 10x - 3) + (4x2 - 29x - 2)B 3(x - 5) - 2(6x2 + 9x + 5)C 2(x - 1) - 3(4x2 + 7x + 1)D (2x2 - 11x - 9) - (14x2 + 8x - 4)E (-15x2 + 9x - 10) + (3x2 - 10x - 5)F (4x2 - 13x - 7) - (16x2 + 9x - 5)

**Answer:**

Options A,C and D

**Step-by-step explanation:**

(4x+5)(-3x-1) = -12x²-19x-5

Option A:

(-16x² + 10x - 3) + (4x² - 29x - 2) = -12x²-19x-5

Option A is correct.

Option B:

3(x - 5) - 2(6x² + 9x + 5) = -12x²-15x-25

Option B is wrong.

Option C:

2(x - 1) - 3(4x² + 7x + 1) = -12x²-19x-5

Option C is correct.

Option D:

(2x² - 11x - 9) - (14x² + 8x - 4) = -12x²-19x-5

Option D is correct.

Option E:

(-15x² + 9x - 10) + (3x² - 10x - 5) = -12x²-x-15

Option E is wrong.

Option F:

(4x² - 13x - 7) - (16x² + 9x - 5) = -12x²-22x-2

Option F is wrong.

ANSWERED AT 07/12/2019 - 02:30 AM

QUESTION POSTED AT 07/12/2019 - 02:30 AM

### How to determine if a function is one to one algebraically?

ANSWERED AT 07/12/2019 - 02:29 AM

QUESTION POSTED AT 07/12/2019 - 02:29 AM

### If the population decreases with a constant rate of change and the decrease is 7% in the first year, what will the town's population be in 6 years? (round to the nearest person)

If the population decreases with a constant rate of change and the decrease is 7% in the first year.

The decrease in the population of the town in the first year is given by 0.07 x 33,000 = 2,310

The decrease in the population of the town in 6 years is given by 2,310 x 6 = 13,860

Therefore, in 6 years, the town's population will be 33,000 - 13,860 = 19,140

ANSWERED AT 07/12/2019 - 02:28 AM

QUESTION POSTED AT 07/12/2019 - 02:28 AM

### Vince has 26 beads.how many different arrays can Vince draw to represent the total number of beads he has? list the sizes of the arrays .

ANSWERED AT 07/12/2019 - 02:25 AM

QUESTION POSTED AT 07/12/2019 - 02:25 AM

### A hand-held digital music player was marked down by 1/4 of the original price. a. If the sales price is $128.00, what is the original price? b. If the item was marked up by 1/2 before it was placed on the sales floor, what was that the store paid for the digital player.?

**Answer:**

a) The original price of music player is $170.66

b)If the item was marked up by 1/2 before it was placed on the sales floor, the store paid $213.325 for the digital player.

**Step-by-step explanation:**

Let the original price be x

A hand-held digital music player was marked down by 1/4 of the original price.

So, Discount =

So, Sale price =

We are given that the sales price is $128.00

So,

**a) The original price of music player is $170.66**

The item was marked up by 1/2 before it was placed on the sales floor.

So, Cost =

Cost =

**b)If the item was marked up by 1/2 before it was placed on the sales floor, the store paid $213.325 for the digital player.**

ANSWERED AT 07/12/2019 - 02:25 AM

QUESTION POSTED AT 07/12/2019 - 02:25 AM

### Chloe is planning her wedding and trying to decide on where to purchase her floral arrangements. At Petals Plus, the arrangements cost $32.84 each, and the store charges $65.00 for delivery of the flowers to the wedding site. At Blooms, the arrangements cost $27.17 each, and the store charges $115.00 for delivery of the flowers to the wedding site. How many arrangements should she purchase from Blooms in order to get a better value?

if she buys ten flower arrangments and delivery at petal plus it will cost her

393.4

she will get a better value if she gets her flower arrangments from blooms.

ANSWERED AT 07/12/2019 - 02:25 AM

QUESTION POSTED AT 07/12/2019 - 02:25 AM

### A grandmother says her grandson is two years older than her granddaughter and that togther, they are at least 12 years old. how old are her grandson and granddaughter

x=2 will be the grandson's age.

x + x + 2 ≥ 12 Collect like terms.

2x ≥ 12 Divide both sides by 2. x ≥ 6 years x + 2 ≥ 8 years

ANSWERED AT 07/12/2019 - 02:25 AM

QUESTION POSTED AT 07/12/2019 - 02:25 AM

### Here are 8 hamsters at Crazy Pete's Pet Shop that are completely brown. The rest of the hamsters at the shop are mixed colors. The 8 brown hamsters represent 25 2/5 of the total number of hamsters at the pet shop. Write and solve an equation, using the variable h, to find the total number of hamsters at the pet shop.

ANSWERED AT 07/12/2019 - 02:21 AM

QUESTION POSTED AT 07/12/2019 - 02:21 AM

### Jola,Darek i Franek rzucają do kosza.Franek ma najwięcej trafień,Jola ma o 13 mniej, a Darek ma najmniej-27.Razem mają mniej niż 97 trafień.Ile razy trafiło do kosza każde z dzieci?

ANSWERED AT 07/12/2019 - 02:17 AM

QUESTION POSTED AT 07/12/2019 - 02:17 AM

### If 3 (x+1) =7 find the value of 3x

Distribute the 3 in the parenthesis and you get:

3x+3=7

Then subtract 1 on both sides of the equal side.

3x=4

Therefore, the value of 3x would be 4.

ANSWERED AT 07/12/2019 - 02:17 AM

QUESTION POSTED AT 07/12/2019 - 02:17 AM

### What do Subway fraction and a whole number it is 5/6 x 36

ANSWERED AT 07/12/2019 - 02:17 AM

QUESTION POSTED AT 07/12/2019 - 02:17 AM

### If s = {r, u, d} is a set of linearly dependent vectors. if x = 5r + u + d, determine whether t = {r, u, x} is a linearly dependent set

We know are linearly dependent, which means there must exist some choice of not all zero constants such that the combination above gives the zero vector. So is a set of linearly dependent vectors.

ANSWERED AT 07/12/2019 - 02:16 AM

QUESTION POSTED AT 07/12/2019 - 02:16 AM

### Calculate δe, if q= 0.764 kj and w= -830 j . express your answer using two significant figures.

Q = 0.0764 kJ = 764 J, heat input

W = -830 J, useful work done

From the 1st Law of Thermodynamics, the change in internal energy is

δE = Q - W

= 764 - (-830)

= 1594 J = 1.594 kJ

Answer: 1.59 kJ (two sig. fig.)

ANSWERED AT 07/12/2019 - 02:08 AM

QUESTION POSTED AT 07/12/2019 - 02:08 AM

### I need help with my algebra 1

6 matches with C

7 matches with A

ANSWERED AT 07/12/2019 - 02:07 AM

QUESTION POSTED AT 07/12/2019 - 02:07 AM

### A square garden has an area of 182 square feet about how many feet of fencing do u need

**__________________________________________________**

**Explanation:**

**____________________**

A = L * w ;

A square is a rectangle that has all equation sides;

so; for a square. (L = w).

or, "A = s² " ; in which "s" in the length of any one side.

______________

Since "A = s² "

And "A = 182 ft² " ;

we need to solve for "s" ;

and then find the perimeter of the square with is: "4*s" .

**_______________________**

A = s² ; ↔ s² = A ; s² = 182 ft² ;

Take positive square root of each side of the equation; to isolate "s" on one side of the equation ; and to solve for "s" ;

√(s²) = √(182 ft²) ;

to get: s = √182 ft, = 53.9629502529281659 ft.

_________________________________

The perimeter: 4* s = 4√(182 ft) = 4* (13.4907375632320415 ft.) ;

**_________________________________________________**

= 53.9629502529281659 ft.

**__________________________________________________**

round to 54 ft.

**_______________________________________________**

ANSWERED AT 07/12/2019 - 02:07 AM

QUESTION POSTED AT 07/12/2019 - 02:07 AM

### A taxi charges $2.50 plus $.20 for every 1/4 mile. how many miles can you go if you have $12.50

ANSWERED AT 07/12/2019 - 02:05 AM

QUESTION POSTED AT 07/12/2019 - 02:05 AM

### Rectangle A measures 12 cm by 3 cm. Rectangle B is a scaled copy of Rectangle A. Select all of the measurement pairs that could be the dimensions of Rectangle B. A. 6 cm by 1.5 cm B.10 cm by 2 cm C. 13 cm by 4 cm D.18 cm by 4.5 cm E.80 cm by 20 cm

**Answer:** **Options 'A' and 'D' are correct that could be the dimensions of Rectangle B.**

**Step-by-step explanation:**

Since we have given that

Dimensions of Rectangle A is given by

12 cm by 3 cm.

And Rectangle B is a scaled copy of rectangle A.

So, by options we can check :

A. 6 cm by 1.5 cm

so, it is scaled dimension copy of rectangle A.

D.18 cm by 4.5 cm

So, it is also scaled copy of rectangle A.

**Hence, Options 'A' and 'D' are correct that could be the dimensions of Rectangle B.**

ANSWERED AT 07/12/2019 - 02:04 AM

QUESTION POSTED AT 07/12/2019 - 02:04 AM

### A trough is 12 ft long and its ends have the shape of isosceles triangles that are 5 ft across at the top and have a height of 1 ft. If the trough is being filled with water at a rate of 13 ft3/min, how fast is the water level rising when the water is 8 inches deep? I have been getting 13/30, but apparently, that is wrong? V=.5 * h * l * b Because of similar triangles: b = 5h (b/h = 5/1) l = 12 V = .5 * h * 5h * 12 V = 30h^2 (dV/dt) = 60 h (dh/dt) dV/dt = 13 h = .5 (because this is in feet) 13 = 60*.5(dh/dt) 13/30 = dh/dt

ANSWERED AT 07/12/2019 - 02:04 AM

QUESTION POSTED AT 07/12/2019 - 02:04 AM

### I'm working at a distribution place and need help i'm supposed to be averaging 1000 units every hours if i do 4800 in a shift i'm 48 minutes behind schedule how many units per a hour am i averaging

1000 units/h

Therefore the expected time for 4800 units is

(4800 units)/(1000 units/h) = 4.8 hours = 288 minutes

Because the worker is 48 minutes behind schedule, the actual time is

288 + 48 = 336 minutes = 5.6 hours

The actual average throughput is

(4800 units)/(5. h) = 857 units per hour.

Answer: 857 units per hour.

ANSWERED AT 07/12/2019 - 01:57 AM

QUESTION POSTED AT 07/12/2019 - 01:57 AM

### Which quadrant is the point (5.2,-1.7) Located? IVIIIIII

ANSWERED AT 07/12/2019 - 01:57 AM

QUESTION POSTED AT 07/12/2019 - 01:57 AM

### We _____ when calculating the average deviation, because the sum of all deviation scores around the mean equals zero.

ANSWERED AT 07/12/2019 - 01:57 AM

QUESTION POSTED AT 07/12/2019 - 01:57 AM

### Find the equation of the circle with center at the origin that contains the point ( 12 , 9 ) (12,9).

Equation of circle: (x-12)+(y-9)=r^2

r=√12^2+9^2=√169

r^2=(√169)^2=169

hence, (x-12)+(y-9)=169

ANSWERED AT 07/12/2019 - 01:56 AM

QUESTION POSTED AT 07/12/2019 - 01:56 AM

### Which ordered triple is a solution of this system? 2x + y - z = 7 -x - 2y + 4z = -15 x + 2y - 5z = 17 a) (3, 1, 0) b) (1, 3, -2) c) (2, 5, 2) d) (-2, 6, -5)

**Answer:**

b) (1, 3, -2)

**Step-by-step explanation:**

A suitable calculator can give you the answer to this right away. Or, you can try the answer choices in the equations to see which works.

The answer choice that works is **choice B**.

2·1 +3 -(-2) = 7

-1 -2(3) +4(-2) = -15

1 +2(3) -5(-2) = 17

ANSWERED AT 07/12/2019 - 01:51 AM

QUESTION POSTED AT 07/12/2019 - 01:51 AM

### The expression 0.09x+(x−30) models the final price of a bicycle with an instant rebate in a state that charges a sales tax. The tax is on the original price. Which expression represents the amount of tax that is paid on the bicycle? A) 1.09x B) 0.09x C) 0.09x - 30 D) x - 30

Actually I took the test and it was **B. 0.09x**. Btw the answer can't be 0.09x - 30 because we aren't finding what it equals we are finding "which __expression represents__ the *amount of tax that is paid on the bicycle*".

ANSWERED AT 07/12/2019 - 01:50 AM

QUESTION POSTED AT 07/12/2019 - 01:50 AM

### Greg is 5 feet three inches tall and weighs 260 pounds. greg is ________.

ANSWERED AT 07/12/2019 - 01:50 AM

QUESTION POSTED AT 07/12/2019 - 01:50 AM

### It is known that the depth of a lake at a point with coordinates (x, y) is z = 200 + 0.02x2 − 0.001y3, where x, y, and z are measured in meters. a woman in a kayak starts at the point (80, 60) and moves toward another point located at (0, 0). (a) find du f(80, 60). (give your answer correct to at least two decimal places.)

ANSWERED AT 07/12/2019 - 01:50 AM

QUESTION POSTED AT 07/12/2019 - 01:50 AM

### G what is the measure of the complement of the supplement of a 157degrees° angle

ANSWERED AT 07/12/2019 - 01:48 AM

QUESTION POSTED AT 07/12/2019 - 01:48 AM

### Simplify the following expression 12 1/2 + (-25)

ANSWERED AT 07/12/2019 - 01:48 AM

QUESTION POSTED AT 07/12/2019 - 01:48 AM

### A man has 20 coins in his pocket, all of which are dimes and quarters. if the total value of his change is 425 cents, how many dimes and how many quarters does he have? your answer is

15 quarters = $3.75

5 dimes = $0.50

Total: 20 coins = $4.25 or 425 cents

ANSWERED AT 07/12/2019 - 01:48 AM

QUESTION POSTED AT 07/12/2019 - 01:48 AM

### Twelve people join hands for a circle dance. in how many ways can they do this?

ANSWERED AT 07/12/2019 - 01:44 AM

QUESTION POSTED AT 07/12/2019 - 01:44 AM