Simplify: [5-3x+2y-(2x-y)]-(3x -7y+9)

Answers

Answer 1

Answer: (5-3x+2y-2x+y)-(3x-7y+9)= (5-5x+3y)-(3x-7y+9)= 5-5x+3y-3x+7y-9= -8x+10y-4= 2(-4x+5y-2)

Answer 2

Answer: $[5-3x+2y-(2x-y)]-(3x-7y+9)\n\n=(5-3x+2y-2x+y)-3x+7y-9\n\n=(5-5x+3y)-3x+7y-9\n\n=5-5x+3y-3x+7y-9\n\n=-8x+10y-4$

Related Questions

Help with this question please! Show steps if u can :)
How to simplify 3 over 18
Identify the domain and range of the function graphed below.
Put these fractions in order from least to greatest:\frac{5}{10} , \frac{3}{16} , \frac{3}{4} , \frac{5}{48} PLEASE HELP !!!
For 1 through 3, use grid paper to draw two different rectangles with the given perimeter. Tell the dimensions and area of each rectangle. Circle the one that has the greater area. 1. 12 meters. 2. 28 inches 3. 20 feet

Please help. A skyrocket is launched from a 6 foot high platform with initial speed 200ft/s. The polynomial -16t^2 + 200t + 6 gives the height in feet the skyrocket will rise in t seconds. How high will the rocket rise in 6 seconds

Answers

The height of the rocket after 6 seconds is 630 feet

Functions and values

Given the polynomial function that represents the height of the rocket expressed as:

f(t) = -16t^2 + 200t + 6

If the time the rocket take to rise is 6 seconds, hence;

f(6) = -16(6)^2 + 200(6) + 6

f(6) = - 576 + 1200 + 6

f(6) = 630 feet

Hence the height of the rocket after 6 seconds is 630 feet

Learn more on functions and values here: brainly.com/question/10439235

#SPJ2

630 if i typed it in the calc correctly lol

One angle of the triangle is 4 times the second angle. The third angle of the triangle is 30 degrees more than the second angle.find the measures of all the angles.

Answers

X+4x+x+30=180
6x=150
X=25

So angles are 25, 100, 55 degrees

Tina spends 25% of her day in school. She spends 1/3 of her day sleeping. She spends 1/8 of her time at soccer practice. How many free hours does Tina have during the day?

Answers

This will involve adding fractions then subtracting. 25% is equivalent to 1/4. So you'll be adding 1/4 + 1/3 + 1/8. To add fractions you'll need to find a common denominator. 3, 4, & 8 area all factors of 24. So convert your original fractions to 1/4= 6/24, 1/3= 8/24, & 1/8= 3/24. Add your numerators 6+ 8+ 3= 17 which you'll put over the denominator of 24= 17/24. the original question asks how many free hours does she have. their are 24 hours in a day so now you'll subtract 17 from 24. 24-17= 7. She has 7 hours free in a day.

What is the mean,median,mode, and range for 6, 9, 2, 4, 3, 6, 5

Answers

Data Set:
6, 9, 2, 4, 3, 6, 5

Statistics:

Count:7 (the sets of number...)
Sum:35    (Ummm add you know....)
Mean:5   (Average)
Median:5   (middle number)
Mode:6    (The number that occurs most)

and range is 7 (big number minus small number)

Hello, Nena500. Here are the answers.

The mean is the average of the numbers. To find this out, you have to add all the numbers and divide by the total amount of numbers. You add 6+9+2+4+3+6+5 and you get 35. Now, divide 35 by 7, because there are seven numbers. And now you get 5. So, the mean is 5. The median is the middle number so you have to arrange all the numbers in order first from least to greatest. The numbers in order would be: 2+3+4+5+6+6+9. So, the median is 5. The mode is the number that occurs most frequently. The mode is then 6 since it occurs twice. The range is the highest number subtracted by the lowest number. That would be 9-2. The range is 7.

~hope it helps :)

A vehicle moving at a constant speed travels 45 miles in 3/4 hour. The driver thinks he will be late to a meeting that is still 65 miles away and that starts in 1.25 hours. Assume he maintains a constant speed. Find the driver's unit rate of speed and explain whether he was late or not. I REALLY need help!

Answers

ok so
speed=distance/time

find his speed in miles per 1 hour

3/4=0.75
s=d/t
s=45/0.75
s=60/1
s=60mph

starts in 1.25 hours
if he takes all that time, will he be late, on time, or early

multiply
60mph
1.25 hours
60 times 1.25=75
in 1.25 hour he can travel 75miles

he needs to only travel 65
75>65
he will make it
not late, he is early

1) we calculte the driver´s unit rate of speed.
s=speed
d=distance
t=time.

s=d/t

45 miles------------------3/4 hour
x----------------------------- 1 hour

x=(45 miles * 1 hour) / (3/4 hour)=60 miles.

speed or rate=60 miles / 1 hour.

2)we calculate the distance traveled at 1.25 hour.

distance=rate * time

distance=(60 miles /1 hour) * 1.25 hour=75 miles.

Answer: the driver would´t go late, because, the distance is 65 miles, and he can travel 75 miles if he drive with that speed .

What is the domain of this function?2
N
4
3
9
16
A. {1, 2, 3, 4, 9, 16}
B. {1, 2, 3, 4. C. {2,4,9,16}
D. {1,2}

Answers

Answer:

Step-by-step explanation:

i m sorry the question is not clear ...its confusing

Other Questions

Simplify 2x2 - y for x = 3 and y=-2.o 20o 14o 16o 10

What are skew lines

One day after shopping at a department store Lenny discovered that he only had $13 left and his wallet he had entered the store with $81 in his wallet which equations could be used to find how much money Lenny spent (x)

Your friend averages 56 miles per hour while driving to a college. On the return trip, your friend averages 48 miles per hour due to construction. The total driving time is 6 hours and 30 minutes. How long does each trip take?