Step-by-step explanation:
volume of the rectangular prism is obtained from the following equation :
rectangular prism base area × rectangular prism height
so the volume is : 256 × h
Let f(x) = 2x – 3 and g(x) = 3x – 2. Find the value.
(fog)(-2)
(fog)(-2) =
PLEASE HELP!!!
Answer:
Ok:
Step-by-step explanation:
So f°g . means f(g(x)). (The ° should be more center and bigger but I don't know to do that on a keyboard). f(g(x)) means that you replace the x in f(x) with the g(x) function. i.e:
if f(x) = 2x+2
and g(x) = [tex]x^2[/tex]
f(g(x)) = [tex]2x^2+2[/tex].
Similarly, in this case, we get f(x) = 2x-3 and g(x) = 3x-2.
Then, f(g(x)) or f°g(x) is 2(3x-2) - 3.
And we plug in -2 to solve:
2(3(-2)-2)-3.
and get -19.
Check if I am wrong because everyone makes mistakes but that is the way to solve this.
records shows that 3 out of 4 families move about every 6 years. what is the percentage of families that move every 6 years?
75%.
3 out of 4 means 3/4
And if you divide 3/4 the answer is .75
So multiply by 100( because to convert decimal to percent you have to multiply by 100, or move the decimal place two places to the right) and you get 75
Slap a percent sign on there and you have 75%
I can't find the right answer
Answer:
x^2 ≥ 4
Step-by-step explanation:
[tex]x^2\ge \:4\\\\\mathrm{For\:}u^n\:\ge \:\:a\\\mathrm{,\:if\:}n\:\mathrm{is\:even}\mathrm{\:then\:}u\:\le \:\:-\sqrt[n]{a}\:or\:u\:\ge \sqrt[n]{a}\\\\x\le \:-\sqrt{4}\quad \mathrm{or}\quad \:x\ge \sqrt{4}\\\\\sqrt{4}=2\\\\x\le \:-2\quad \mathrm{or}\quad \:x\ge \:2[/tex]
Answer:
A
You can take the square root of the inequality x^2<4, which will make it x< plus or minus 2 (x<2, x<-2)
You know it is this answer because, the sign cannot be greater than or equal to since the circles aren't filled, and if you solve the other inequality, the answer you get does not match.
Hope this helps!! :)
Evaluate 12y when y = 4.
Answer:
48
Step-by-step explanation:
12*4=48
substitute y for the given value
Answer:
48
Step-by-step explanation:
12y
Let y=4
12*4 = 48
Find the slope of (-3,9) and (-3,-5)
Answer:
undefined
Step-by-step explanation:
the slope is found by finding the change in y over the change in x. in this instance, you can do 9--5/-3--3... which is the same as 9+5/-3+3. the result is 14/0. Any fraction that has a denominator of zero is undefined, so the line would be straight up and down.
If this helped, don't forget to mark it the brainliest:) have a nice day
what is meaning of integers
whole numbers, plus their counterparts less than zero, and zero
Negative integers(less than 0) being: –1, –2, –3 exc.
Positive integers(more than 0) being: 1, 2, 3 exc.
Answer:
Integers are whole numbers like -3, -2, -1, 1, 2, 3, 4. They can't be fractions or decimals though
Please hurry it’s urgent Thank you
Answer:
D
Step-by-step explanation:
the answer is the graph on the bottom right corner, 400 pages on the y axis and 16 days on the x axis. 25 pages a day.
hope this helped!
Can you help me fill the graph please?
Answer:
8=6 2/5
50=40
100=80
Step-by-step explanation:
8x4/5=6 2/5
4x10=40 so 5x10=50 (I got this from the second row)
5x20=100 so 4x20=80 (also from second row)
Why is near impossible to draw a rhombus on Geoboard and easy to draw a square?
Thank you in advance :)
Answer: Think about diagonal sides and horizontal bases.
Step-by-step explanation: "Think outside of the box." as they say.
See the screenshot attached.
What is the fraction
12
30
in simplest form?
O
15
3
10
Answer:
2/5
Step-by-step explanation:
URGENT!!!!!! Find the value of q in the following system so that the solution to the system is——
====================================================
Explanation:
The left hand side of the first equation is x-3y
The left hand side of the second equation is 2x-6y = 2(x-3y). Note how it's simply double of the first expression x-3y
If we multiply both sides of the first equation by 2, we get
x-3y = 4
2(x-3y) = 2*4
2x-6y = 8
Meaning that 2x-6y = 8 is equivalent to x-3y = 4. Both produce the same line leading to infinitely many solutions. Each solution will lay along the line x-3y = 4.
We can say each solution is in the set {(x,y): x-3y = 4}
Which is the same as saying each solution is of the form (3y+4,y)
Simplify the question 8(x+9)
Step-by-step explanation:
8(x + 9)
8x + 72 = 0
8x = -72
x = -72/8
x = -9
Answer:
Given : 8(x + 9)
Solution :
[tex]8(x + 9) = 0\\ [/tex]
Multiply 8 to both x and 9
[tex]8x + 72 = 0 \\ [/tex]
Now, Move 72 to RHS from LHS
[tex]8x = - 72 \\ [/tex]
[tex]x = \dfrac{ - 72}{8} \\ [/tex]
And the final ans we get is :
[tex]\boxed{x = - 9}[/tex]
HELPPPP!!!! PLEASEEE!!!
Which statement below is true?
A. If p → q is true, then q → p is true.
B. If p → q is true and p is true, then q is true.
C. If p → q and q → r are true, then q → p is true.
D. If p → q and q → r are true, then r → p is true.
Answer: i believe the answer is B
Step-by-step explanation: because if p to q is true, then that means p and q are both true!
Which expression can be used to find 80% of 120?
Answer: the expression (120/100)*80 results in 80% of 120
Step-by-step explanation:
Water freezes at 0 celcius and 32 fahrenheit
Answer:
true
Step-by-step explanation:
Kendra is participating in a fundraiser walk-a-thon she walks 4 miles in 60 minutes how many minutes will it take to walk 7 miles
Answer:
105 min
Step-by-step explanation:
60 minutes ÷ 4 miles= 15 minutes per mile
15min per mile x 7 miles = 105 minutes
HELPPP!!!! It’s due tmmr
Answer:
total of 482
Step-by-step explanation:
He sold 1940
20% on first 500
500 *.20 = 100 commission
Then 25% on the next 1000
1940 -500 = 1440 left
He has 1000
1000 * 25%
1000*.25 = 250 commission
1440-1000 = 440 left
440 at 30%
440*.30 =132 commission
Add together
100+250+132 = 482
A young female lion was brought into the wildlife zoo weighing 53.5 pounds. After two years, she weighed 5.5 times
that amount. Which is the most logical estimated product for the weight of the lion after two years of captivity?
O 3 pounds
O 32 pounds
324 pounds
3240 pounds
Answer:
324
Step-by-step explanation:
This is because when rounding you multiply 55 by 6 that is equal to 330 which is near 324. However if you want the answer spot on it would be 294
Answer:
324
Step-by-step explanation:
so you would times 53.5 by 5.5 and you would get 294.25 so i rounded up and the most logical estimation there was is 324 pounds
the average weight of 6 people is 173, a 7th person gets on and now the average weight is 165, how much did the 7th person weigh
Answer:
117
Step-by-step explanation:
The average of all 7 people is the total weight of the original 6 people, plus the weight of the 7th person, all divided by 7.
For problems like this involving an average of numbers that are "close" together, here is a different strategy for solving the problem that you might like to try.
The original 6 people have an average weight of 173, which is 8 pounds more than the average of all 7 people. So all together, the weight of those 6 people is 6*8=48 pounds over the 165 average. That means the 7th person's weight must be 48 pounds below the 165 average.
So the weight of the 7th person is 165-48 = 117 pounds.
Answer:
The 7th person weighted 117
Step-by-step explanation:
Average Value
The mean or average of a number n of measurements is defined as the sum of all values divided by n.
[tex]\displaystyle \bar x=\frac{\sum x_i}{n}\\[/tex]
The question gives us some input data. The average weight of n=6 people is [tex]\bar x=173[/tex]. With this information, we can set this relationship:
[tex]\displaystyle 173=\frac{\sum x_i}{6}[/tex]
From the above equation, we know the sum of the first 6 persons:
[tex]\sum x_i=6*173=1,038[/tex]
When a 7th person gets on, the new average gets down to 165 and n=7. The equation for the new average is:
[tex]\displaystyle 165=\frac{\sum x_i+X}{7}[/tex]
Note we have a new summand to the numerator. It's the weight of the 7th person. Let's solve for X:
[tex]\displaystyle 165=\frac{1,038+X}{7}[/tex]
Multiply by 7:
[tex]7*165=1,038+X[/tex]
Operate and swap sides:
[tex]1,038 +X=1,155[/tex]
[tex]X=1,155-1,038=117[/tex]
The 7th person weighted 117
find the value of x. Please help!!!
The answer is 8. Teacher gave us the answer , but I need to show my work.
Answer:
51+(4x+7)=90
4x+58=90
-58 -58
4x=32
4x/4=32/4
x=8
Step-by-step explanation:
Rewrite in simplest term 2(-8r-6)-6(-3r+6)
Answer:
2r-48
Step-by-step explanation:
if you wanted the answer that's what it would be. after you use the distributive property for each set of parentheses and then combine alike terms.
what is 2819 divided by 55
Answer:
51.2545454545
Step-by-step explanation:
Answer:
51.25....
Step-by-step explanation:
Find the equation of this line.
Simplify the fractional part.
(Picture)
Answer:
y = 1/3x + 2
Step-by-step explanation:
Rise over run + y intercept
Ling spent $23.96 on cooking fuel for an upcoming camping trip. If she bought 4 cans of fuel, how much did she pay for each can?
Answer:
The answer is $5.99
Step-by-step explanation:
$23.96 divided by 4 is $5.99
Answer:
The answer is $5.99
Step-by-step explanation:
I just did the quiz.
HELPPPPPPP MEEEEEEEEEEEE
Answer:
your answer is b 32/4=8
Step-by-step explanation:
if you take the groups of 4 and count them up it is 32 and then you divide them in to equal groups and it is 8 groups of 4
hope this helped
:)
What's the number of people left to play at 10 of
15 have played
Answer:
5 people will be left to play
Answer: Out of 10 to 15 people played, 5 people are left to play
Mark's grade went from 65% to 90%. What was his percent increase?
А
25%
B
28%
С
38%
D
90%
Answer:
A
Step-by-step explanation:
what the biggest 7/2 or 3 1/4?
Answer:
7/2
Step-by-step explanation:
68,347 rounded tp the nearest hundred
A farmer notes that in a field full of horses and chickens there are 35 heads and 98 feet. How many of each animal are there?
Answer:
There are 14 horses and 21 chickens.
Step-by-step explanation:
First, you have to make expression for horse and chicken. So we can let x be the number of horses and y will be the number of chickens. Next, given that the total number of feet for both animals is 98 so you have to make simultaneous equation :
[tex]4x + 2y = 98[/tex]
( horse has 4 feet and chicken has 2 feet )
There are a total of 35 heads so the other equation will be :
[tex]x + y = 35[/tex]
Lastly, you have to solve it :
[tex]4x + 2y = 98[/tex]
[tex]2(2x + y) = 98[/tex]
[tex]2x + y = 49 - - - (1)[/tex]
[tex]x + y = 35 - - - (2)[/tex]
[tex](1) - (2)[/tex]
[tex]2x + y - x - y = 49 - 35[/tex]
[tex]x = 14[/tex]
[tex]substitute \: x = 14 \: into \: (2)[/tex]
[tex]14 + y = 35[/tex]
[tex]y = 35 - 14[/tex]
[tex]y = 21[/tex]
