Answer: D.
totoo pong answer yan
Which expression is equivalent to -3x(x-4)-2x(x+3)?
Answer:
x(x^2 + 6)
Step-by-step explanation:
We are to simplify -3x(x-4)-2x(x+3). Begin by performing the indicated multiplication. We get -3x^2 + 12x - 2x^2 - 6x.
Combining like terms, we get -5x^2 + 6x, which is equivalent to
x(x^2 + 6)
Answer
=5x²+12x-6
Step-by-step explanation:
you multiply -3x(x-4)-2x(x+3)
=-3x²+12x-2x²-6
group like terms
=-3x²-2x²+12x-6
=-5x²+12x-6
im failing math rn and really need help so pls help. Find the value of xin the triangle shown below.
Answer:
x = 10
Step-by-step explanation:
Pythagorean Theorem = a² + b² = c²
6² + 8² = c²
36 + 64 = c²
100 = c²
c = 10
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer:
10
Step-by-step explanation:
pythagorean thereom
6^2 + 8^2 = c^2
100 = C^2
c = 10
Solve for t.
3t= -8.16
A circle has a diameter of 36 cm. Which expression could represent the area of this circle in square cm?
Answer:
Step-by-step explanation:
You haven't given the choices but I believe the equation below could represent the area of the circle:
(pi ~ 3.14) * (18)^2
The area for a circle is pi * radius squared, so to find the radius divide the diameter by 2.
Simplify 20 k + 15 k -5k
Answer:
30k
Step-by-step explanation:
9/4 = blank divided by 4
please help- what is blank
Answer:
9
Step-by-step explanation:
You gave the answer right in your question
use the data in the frequency table. The frequency table shows the time it took students in a P.E. class to run 1 mile.
8:00-8:59
6
9:00-9:59
2
10:00-10:59
8
11:00-11:59
6
12:00-12:59
9
3. How many students are in the P.E. class?
4. How many students ran 1 mile in under 9 minutes?
nothing
5. How many fewer students are there who ran 1 mile in under 10 minutes than students who took 11 or more minutes to run that distance?
nothing
6. Can you tell from the frequency table how many students, if any, ran a mile in exactly 12 minutes? Explain.
No/Yes, because the frequency table shows only frequencies/only ranges of times/exact times.
PLZ HURRY WILL MARK BRAINLIEST
Answer:
3. 31
4. 6
5. 7
6. No because the frequency table shows only ranges of times.
Step-by-step explanation:
3. Add up the number of students in each section of your table:
6 + 2 + 8 + 6 + 9 = 31
4. Only the first group ran under 9 minutes.
5. 8 students ran 1 mile in under 10 minutes (the first two sections)
15 students took 11 or more minutes to run 1 mile (the last 2 sections)
15 - 8 = 7
6. No, because the frequency table shows only ranges of times.
There are 31 students in PE class, 6 students ran 1 mile in under 9 minutes, 8 students are there who ran 1 mile in under 10 minutes than students who took 11 or more minutes to run that distance and no student ran a mile in exactly 12 minutes.
What is Statistics?A branch of mathematics dealing with the collection, analysis, interpretation, and presentation of masses of numerical data
A frequency distribution table is a method to organize the data given so that it makes it more meaningful and easier to understand.
The given frequency table
Time Number of students
8:00-8:59 6
9:00-9:59 2
10:00-10:59 8
11:00-11:59 6
12:00-12:59 9
3. The number of students in the PE class
6+2+8+6+9
=31
4. Only the first group ran under 9 minutes which is 6 students
5. 8 students ran 1 mile in under 10 minutes
6+2=8
15 students took 11 or more minutes to run 1 mile
15 - 8 = 7
6. No, because the frequency table shows only ranges of times.
Hence there are 31 students in PE class, 6 students ran 1 mile in under 9 minutes, 8 students are there who ran 1 mile in under 10 minutes than students who took 11 or more minutes to run that distance and no student ran a mile in exactly 12 minutes.
To learn more on Statistics click:
https://brainly.com/question/23091366
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A small dog gets fed 3/4 of a cup of dog food twice a day.
Use d for the number of days and f for the amount of food (in cups), write an equation relating the variables!
Will be marked BRAINLIEST
Answer:
[tex]2f \: \alpha \: d \\ 2f = kd \\ : k \: is \: a \: constant \\ 2( \frac{3}{4} ) = k \times 1 \\ k = \frac{3}{2} \\ \therefore2f = \frac{3}{2} d \\ 4f = 3d \\ f = \frac{3}{4} d[/tex]
Just need to know the unit rates ! Will make brain !!
Answer:
bar bar bar bar bar barar bavr
Determine: minimum, maximum, median, 1st quartile, and 3rd quartile
10, 12, 7, 9, 4, 15, 20, 21
HELP PLEASE!!!!!!????
Answer:
Step-by-step explanation:
c. 235.00 intrest rate
When a spaceship full of scientists landed on Planet Q, they found that 17/40 of the 160 aliens had 3 eyes. How many aliens had 3 eyes?
Answer:
68 aliens
Step-by-step explanation:
Take the fraction of aliens that had 3 eyes and multiply by the number of aliens
17 / 40 * 160 =
17 * 160/40
17 *4
68
please help me with this
Answer:
Dimensions are 10 x 9 x 7 and 9 x 4 x 5
Step-by-step explanation:
Divide the prism on the line that is 12cm
help me plz i need it
Answer:
Its's the letter B 24cm²
Answer:
b) 24 is the area
Explanation:
Formula area of triangle: (bxh)/2
Area of triangle:
A= 12 x 4= 48 ÷ 2= 24
ASAP!!! "Find the unknown number. 8÷?=90"
Answer:
11.25
Step-by-step explanation:
Answer:
8 / 0.08888888888
The temperature in Wisconsin is -4 degrees Fahrenheit on Friday. Use the expression 5 (F-32) over 9 to find this temperature in degrees Celsius. Then explain its meaning.
Answer:
5(-4 - 32)/9 = -20˚C
Answer:
5(-4 - 32)/9 = -20˚C
Step-by-step explanation:
Graph the points (0, -2), (4, 0) and (2, 0). If you want to create a parallelogram, which of the following points should be used for the fourth point?
A. (2, -2)
B. (-1, 0)
C. (-4, 0)
D. (4, 4)
Find the measure of each of the following
help11111111112222222222
Answer: Cheeseburger
Real explanation:
Minimum: 28
Lower quartile: 32.5
Median: 39
Upper quartile: 49.5
Maximum: 56
Interquartile range: 23.5
An ice cream sandwich has a length of 4 inches, width of 2 1/2 inches, and height of 3/4 inches.What is the volume of the ice cream sandwich?
Answer:
7.2 is your answer:)
Step-by-step explanation:
how many more numbers to get from 675 to 800
Answer:
Subtract 675 by 800, and you will get 125
To get from 675 to 800, you will add 125 to 675
Answer:
125
Step-by-step explanation:
675+1+1+1+1+1+1+1
lol just kidding
If you subtract 800-675, you would get 125.
Also if you added 125 to 675, you would get 800.
So, there you have it :)
which angles are adjacent to each other ? select all that apply
Step-by-step explanation:
1st one
2nd
4th
helpppp plzzzzzzzzz.....also give steps
helpppp plzzz...plz give steps
Answer:
Volume of hemisphere =
[tex] \frac{2}{3} \pi \: r {}^{3} [/tex]
Given volume =
[tex]18\pi \: cube[/tex]
[tex] \frac{2}{3} \times \frac{22}{7} \: {r}^{3} = 18 \times \frac{22}{7} [/tex]
So pi is there on both the sides so it will be cut from both LHS and RHS
[tex] \frac{2}{3} \times r {}^{3} = 18[/tex]
[tex]2 \times r {}^{3 } = 18 \times 3[/tex]
[tex]2 \times r {}^{3} = 54[/tex]
[tex]r {}^{3} = \frac{54}{2} [/tex]
[tex]r {}^{3} = 27[/tex]
[tex]r = 3[/tex]
Therefore value of r=3 inches
If you are helped with my answer pls tag me brianliest I really want it... Plzz
THANK YOU
BRAINLIEST IF CORRECT
Answer:
[tex]25\%[/tex]
Step-by-step explanation:
Experimental probability represents probability based on an experiment conducted. In the question, it states 40 marbles were drawn and the graph shows that yellow was drawn 10 times. Thus, the experimental probability is [tex]\frac{10}{40}=\frac{1}{4}=\boxed{25\%}[/tex]
Answer:
25%
Step-by-step explanation:
A chemist has 60 ounces of a mixture. She wishes to perform many trials in an experiment and will use 2/3 ounce of the mixture for each trial. How many trials can she perform? Simplify the answer.
Answer:
3/1=1/3
Step-by-step explanation:
split the 60 ozs to 3
PLS HELP Find the value of x in the triangle shown below.
Answer:
the answer is 20
Step-by-step explanation:
use the pythagorean theorem
1] 12 x 12 = 144
2] 16 x 16 = 256
3] 144 +256= 400
4] find square root of 400 which is equal to 20
Prove for any positive integer n, n^3 +11n is a multiple of 6
There are probably other ways to approach this, but I'll focus on a proof by induction.
The base case is that n = 1. Plugging this into the expression gets us
n^3+11n = 1^3+11(1) = 1+11 = 12
which is a multiple of 6. So that takes care of the base case.
----------------------------------
Now for the inductive step, which is often a tricky thing to grasp if you're not used to it. I recommend keeping at practice to get better familiar with these types of proofs.
The idea is this: assume that k^3+11k is a multiple of 6 for some integer k > 1
Based on that assumption, we need to prove that (k+1)^3+11(k+1) is also a multiple of 6. Note how I've replaced every k with k+1. This is the next value up after k.
If we can show that the (k+1)th case works, based on the assumption, then we've effectively wrapped up the inductive proof. Think of it like a chain of dominoes. One knocks over the other to take care of every case (aka every positive integer n)
-----------------------------------
Let's do a bit of algebra to say
(k+1)^3+11(k+1)
(k^3+3k^2+3k+1) + 11(k+1)
k^3+3k^2+3k+1+11k+11
(k^3+11k) + (3k^2+3k+12)
(k^3+11k) + 3(k^2+k+4)
At this point, we have the k^3+11k as the first group while we have 3(k^2+k+4) as the second group. We already know that k^3+11k is a multiple of 6, so we don't need to worry about it. We just need to show that 3(k^2+k+4) is also a multiple of 6. This means we need to show k^2+k+4 is a multiple of 2, i.e. it's even.
------------------------------------
If k is even, then k = 2m for some integer m
That means k^2+k+4 = (2m)^2+(2m)+4 = 4m^2+2m+4 = 2(m^2+m+2)
We can see that if k is even, then k^2+k+4 is also even.
If k is odd, then k = 2m+1 and
k^2+k+4 = (2m+1)^2+(2m+1)+4 = 4m^2+4m+1+2m+1+4 = 2(2m^2+3m+3)
That shows k^2+k+4 is even when k is odd.
-------------------------------------
In short, the last section shows that k^2+k+4 is always even for any integer
That then points to 3(k^2+k+4) being a multiple of 6
Which then further points to (k^3+11k) + 3(k^2+k+4) being a multiple of 6
It's a lot of work, but we've shown that (k+1)^3+11(k+1) is a multiple of 6 based on the assumption that k^3+11k is a multiple of 6.
This concludes the inductive step and overall the proof is done by this point.
Find the original length if the map length is of 5cm and whose map ratio is 1:10000.
Use the hint: map ratio = map length: ground length
I’ll fail if I don’t get this right pls help
Step-by-step explanation:
In order to find the number of solutions, we have to expand both sides out first.
[tex]3(x - 2) + 7x = \frac{1}{2} (6x - 2)[/tex]
First, expand 3(x-2), which will obtain 3x-6.
Next, expand (1/2)(6x-2), which gives 3x - 1.
The result at this point should be as shown below:
[tex]3x - 6 + 7x = 3x - 1[/tex]
Now, we would shift all x terms to the left and all number terms to the right.
[tex]3x + 7x - 3x = - 1 + 6[/tex]
After simplifying, the final equation would be:
[tex]7x = 5[/tex]
This is a linear equation and it has one solution.
[tex]x = \frac{5}{7} [/tex]
Answer:
x = 5/7
Step-by-step explanation: