9514 1404 393
Answer:
D. -31m^4n-8m^2
Step-by-step explanation:
Eliminate parentheses by distributing the minus sign. Then collect terms:
(9mn-19m^4n)-(8m^2+12m^4n+9mn) = 9mn -19m^4n -8m^2 -12m^4n -9mn
= m^4n(-19 -12) +mn(9 -9) +m^2(-8)
= -31m^4n -8m^2 . . . . . matches choice D
Please help some one and if you could explain please
Answer:
t = 1 second
Step-by-step explanation:
initial height = 16
penny to hit the ground = 0
0 = -16t^2 + 16
-16 = -16t^2 ÷
-16 ÷ -16 = -16t^2 ÷ -16
1 = t^2
√1 = √t^2
1 = t
Write the point slope form of a line that passes through (1,-5) and is perpendicular to a line with a slope of 1
Answer:
y + 5 = -1 (x - 1)
Step-by-step explanation:
y = -1
y + 5 = -1 (x - 1)
1) Convert 0.469 dam to cm.
PLEASE HELP!! Only answer if correct.
Answer:
top -55
bottom 325
Step-by-step explanation:
I need help please I need to turn it in tomorrow at 8:00 AM
Answer:
The estimate is too low
Step-by-step explanation:
46×6=276 which isn't a very close estimate. However if you used 46×7=322 the estimate would be OK. Now if you used 46×8=368 that would be too high of an estimate here. In simpler terms 1 to 6 is too low of an estimate here and 8 to 9 is too high of an estimate. The number 7 is the middle ground here. Hope this helped.
Questions 9-10: Make the necessary calculations and give
your answer in the space below each question.
9. What is the area of the rectangle on the right?
3 cm
4 cm
Ignore the bottom question
Website
1. Orbitz.com
2. Mypoints.com
3. Americangreetings.com
4.Bizrate.com
5.Half.com
Average daily unique visitors
1,527,000
1,356,000
745,000
503,000
397,000
What was the total average number of visits for these websites?
Answer:
905,600 visitors
Step-by-step explanation:
added each number up and divided them by 5 (the total number of websites) to get 905,600
Can someone help me solve x?
9514 1404 393
Answer:
x = 1
Step-by-step explanation:
The diagram is intended to show you that the whole is the sum of the part:
11 = (10x -1) +(2x)
11 = 12x -1 . . . . . . . collect terms
12 = 12x . . . . . . . . add 1 to both sides
1 = x . . . . . . . . . . . divide both sides by 12
The value of x is 1. The lengths of the segments are 9 and 2.
Solve each equation 5(-8+5k) +5k=-250
Answer:
k = 7
Step-by-step explanation:
-40+25k +5k = -250
30k = -250 + 40
k = -210/30
k = 7
Cheryl bought 16 pounds of apples for $12. How much did it cost per
Sund of apples?
$192
$0.75
$1.33
$28
Answer:
.75
Step-by-step explanation:
$12 / 16 = $0.75
graph the linear equation
y+2=-3(x+2)
Here is how your graph should look. Make sure to plot (0,-8) as your y-intercept.
Hope this can help ! :)
Simplify this expression.
A worker makes 220 for 8 hours of work. At this rate, how much does the worker make per hour
Answer:
22.5
Step-by-step explanation:
8hrs=220
1hr=220÷8
1hr=22.5
According to the question,
The worker makes,
[tex]8 \ hours = 220[/tex]then,
Per hour, worker will make,
→ [tex]1 \ hour = \frac{220}{8}[/tex]
By applying division, we get
→ [tex]1 \ hour = 22.5[/tex]
Thus the solution above is appropriate.
Learn more about interest rate here:
https://brainly.com/question/2254494
A man has 6x sheep 5y goats. He sell 3x sheep and 2y goats. How many animals has he left?
Answer:
[tex]6x - 3x = 3x \: sheeps\\ 5y - 2y = 3y \: goats \\ 3x + 3y \: animals \: left[/tex]
Which of the following statements are true based upon the given I I information
To complete a job, a plumber needs 10 sections of pipe that are 24.125 inches in length. How much pipe is needed?
Answer:
241.25
Step-by-step explanation:
24.125 x 10= 241.25
Answer:
That would be a total of 241 and a quarter inches of pipe which is equal to 20.10417 feet of pipe.
Step-by-step explanation:
24.125x10=241.25/12=20.104166666
Because there are 12 inches in a foot.
A triangle has side lengths 35 cm, 46 cm, and 68 cm.
What type of triangle is this?
scalene
isosceles only
equilateral
Answer: Scalene
Step-by-step explanation:
The triangle doesn't have any equal side
Answer:
This is a scalene triangle. Hope this helps.
a. After Pam bought the party supplies, what is the balance of her bank account compared with her
starting balance? Show your work.
Answer:
What is the original Balance, and what is the price of the party supplies?
solve include real and non real solutions.
x^2-8=0
Answer:
[tex]x=+2\sqrt{2} and-2\sqrt{2}[/tex]
Step-by-step explanation:
[tex]x^2-8=0[/tex]
[tex]x^2=8[/tex]
[tex]\sqrt{x^2} = \sqrt{8}[/tex]
[tex]x=2\sqrt{2}[/tex]
plus or minus
Write the equation of the line graphed below.
Answer: y=-7
Step-by-step explanation: on why axis and is pallet yo x axis
Answer:
y = -7
Step-by-step explanation:
Can someone help me please :)
9514 1404 393
Answer:
(d) y = 2×7^x
Step-by-step explanation:
If you try x=2 in each of the expressions, you find only one of the gives 98 as the value.
a) 14^2 = 196
b) 7×2^2 = 28
c) 2^(7×2) = 2^14 = 16,384
d) 2×7^2 = 2×49 = 98 . . . . . . . correct answer choice
__
Alternatively, you can recognize that the x-values in the given (x, y) pairs differ by 1, so the ratio of y-values will be the base of the exponential term:
98/14 = 7
so you're looking for something of the form 7^x. That would be ...
y = 2×7^x
__
In more general terms, consider
y = ab^x
If you have x=1 and x=2, then this will be ...
y1 = ab^1 = ab
y2 = ab^2
Dividing the second by the first gives ...
y2/y1 = (ab^2)/(ab) = b . . . . . . . general solution when x-values differ by 1
98/14 = b = 7
From the x=1 case, we have ...
14 = 7a ⇒ a = 2
y = 2·7^x
The lines given by the equations y = 2x and y= 2x + 1 are
A. Parallel
B. Perpendicular
C. Neither Perpendicular nor parallel
how do you solve the following equation?
10-s=34
Answer:
-24
Step-by-step explanation:
10-s=34
collect like terms
10-34=s
s=-24
Trigonometry prove that LHS=RHS
Answer:
bc cot 0
Step-by-step explanation:
Andrea saves 65 each day.if this is 25% of hair daily allowance, how much is her daily allowance
25/100 = x/65
100x = 1625
x = $16.25
$16.25 is her daily allowance
Alice needs to mix 4 cups of baking soda with 3 cups of water to make a cleaning solution. How many cups of baking soda are needed for each cup of water?
Answer:
1.33
Step-by-step explanation:
Divide 3 by 3, making it one. Now divide 4 by 3, making it 1.33.
Two buses leave a station at the same time and travel in opposite directions. One bus travels 17 mi/h slower than the other. If the two buses are 345 miles apart after 3 hours, what is the rate of each bus? Please help!
Answer:
...,....................
Answer:
one bus travels at 66mi/hr and the other bus at 49mi/hr
Step-by-step explanation:
Let's assume one bus, A is traveling at x mi/hr and the other bus, B at x+17 mi/hr
after 3hrs, bus A will have covered 3x miles and bus B will have covered 3(x+17) miles.
the buses are 345 mils apart but from the same origin,
meaning Distance of A + Distance of B =345 miles
3x+3(x+17)=345
x=49
for bus A
and x+17=66 for bus B
an item on sale costs 60% of the original price. If the original price. If the original price was $40, what is the sale price?
Answer: $24
Step-by-step explanation:
40 * .60 = $24
The students in Ms. Hill’s class are reading a 325-page book. There are about 90,000 words in the book.
Ms. Hill said the students should try for a reading rate of 200 words per minute for greatest comprehension.
Molly read 65 pages of the book in 80 minutes. What's Molly's reading rate?
Answer:
225
Step-by-step explanation:
(90000÷325)×65=18000
18000÷80=225
reading rate of 225 words per minutes
3∣a−b∣ if a=−9 and b=3
Answer:
36 because the absolute value of -9-3 is 12, and then 12 times 3 is 36
