Answer:0.8 or 4/5
Step-by-step explanation:1/5 x 4 = 4/5
And to check your work
4/5 / 4 = 1/5
Answer: 4/5
Step-by-step explanation: First you have to set up a multiplacation problem.
1/5 x 4 or 1/5 x 4/1 = 4/5
How many solutions does this system have?
x + 4y = 6
y = 2x - 3
a. one
b. two
c. an infinite number
d. no solution
There is only one solution to this system of equations. The solution is where the two equations meet, which in this system is (2, 1).
Answer:
One Solution
Step-by-step explanation:
GOT IT RIGHT ON EDGE 2020
Simplify 14^15 over 14^5
A. 1^3
B. 1^10
C.14^3
D.14^10
Simply just subtract 5 from 15 to get 14^10, or D.
Help with question 14!!
Answer: a=2 b=5 c=-7
parabola equation is y = 2x^2+5x-7 = 0
Step-by-step explanation:
Substitute (x,y) into y = a x^2 + b x + c
(2,11) 11 = 4a + 2b + c
(-1,-10) -10 = a - b + c
(-4,5) 5 = 16a -4b + c
Solve the linear system in a, b, c
Det[{{4,2,1},{1,-1,1},{16,-4,1}}] = 54
Det[{{11,2,1},{-10,-1,1},{5,-4,1}}] = 108
Det[{{4,11,1},{1,-10,1},{16,5,1}}] = 270
Det[{{4,2,11},{1,-1,-10},{16,-4,5}}] = -378
a = 108/54 = 2
b = 270/54 = 5
c = -378/54 = -7
parabola equation is y = f(x) = 2x^2+5x-7
f(2) = 8+10-7 = 11 ✔
f(-1) = 2-5-7 = -10 ✔
f(-4) = 32-20-7 = 5 ✔
Solve. 2/3x = -20. A) -60 B) -30 C) -10 D) 10
Simplify 2/3x to 2x/3
2x/3 = -20
Multiply both sides by 3
2x = -20 × 3
Simplify 20 × 3 to 60
2x = -60
Divide both sides by 2
x = -60/2
Simplify 60/2 to 30
x = -30
Answer: B) -30
Answer:
the answer to you question is -30
Step-by-step explanation:
what you have to do is take the fraction and multiply it by its reciprocal to get it away from the x and if you multiply on one side then you have to multiply on the other side also so you would multiply -20 by 3/2 the you would get the answer of -30
Hope this helps!!!:) can I get the Brainliest?
Alonzo describes a histogram as having a cluster from 20–50, a frequency of 0 from 10–20, and a peak at 40–50. Which histogram is he describing?
Answer:
Skewed Left
Step-by-step explanation:
First we will try to draw the histogram in order to interpret its type.
Its given that from 10-20 the frequency is 0
and 20-50 there are clusters in the histogram but the peak is there at 40-50
So by visualizing the histogram which is hereby attached depicts that the histogram is skewed left as skewed histogram is one in which the frequency starts from 0 and the highest frequency occurs at the end so as is in the given problem.
Answer:
The first one.
Step-by-step explanation:
so i comeplete a table right ,
number of cuts | number of ballots
1 | 3
2| 9
3| 27
4| 81
5| 243
perhaps I continue this process , how many ballots will I have after 10 cuts ?
how many will I have after n cuts ?
Answer: The number of ballots increases by 3: 3x3=9, 9x3=27, 27x3=81...
After 10 cuts, there will be 59,049 ballots.
Solve for X in the equation below. Show your work.
HI! I REALLY NEEED HELP WITH THIS QUESTION PLEASE SHOW YOUR WORK IF YOU ARE WILLING TO HELP MEH! PLEASE HELP ME!
(x-2)= -1/4(x-8)
Answer:
x = 16/5
Step-by-step explanation:
(x-2)= -1/4(x-8)
Multiply each side by -4 to clear the fraction
-4 (x-2) = -4*-1/4 (x-8)
Distribute
-4x+8 = x-8
Add 4x to each side
-4x+4x+8 = x+4x-8
8 = 5x-8
Add 8 to each side
8+8 = 5x-8+8
16 = 5x
Divide each side by 5
16/5 = 5x/5
16/5 =x
What is the answer ?
Answer:
2y
Step-by-step explanation:
Simplifying
21x + -42y = 0
Solving
21x + -42y = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '42y' to each side of the equation.
21x + -42y + 42y = 0 + 42y
Combine like terms: -42y + 42y = 0
21x + 0 = 0 + 42y
21x = 0 + 42y
Remove the zero:
21x = 42y
Divide each side by '21'.
x = 2y
Simplifying
x = 2y
Find the missing number of each unit rate
Answer:
3 and 4
Step-by-step explanation:
21/7 = x/1
x = 21/7*1 = 3
16/4 = y/1
y = 16/4*1 = 4
I could really use some help with these 4 problems. Any help will be greatly appreciated!
(7) is the same problem with different numbers as (4) in another question you posted: https://brainly.com/question/11799042
(8) is not correct. [tex]\mathbf u\cdot\mathbf v=(12)(-15)+(4)(-5)=-200[/tex]
(9) is not correct. The direction of the vector [tex]\langle3,4\rangle[/tex] is [tex]\theta[/tex] where
[tex]\tan\theta=\dfrac34\implies\theta=\tan^{-1}\dfrac34[/tex]
so the applied force is the vector
[tex]\mathbf F=\langle14\cos\theta,14\sin\theta\rangle=\langle11.2,8.4\rangle[/tex]
(if you're not sure how to compute the (co)sine of the inverse-tangent expression, note that a tangent of 3/4 corresponds to a right triangle with hypotenuse 5)
The object is moved 7 ft in the same direction as [tex]\mathbf F[/tex], so that its displacement is given by the vector
[tex]\mathbf d=\langle7\cos\theta,7\sin\theta\rangle=\langle5.6,4.2\rangle[/tex]
Then the work done on the object is the dot product of these two vectors,
[tex]W=\mathbf F\cdot\mathbf d=(11.2)(5.6)+(8.4)(4.2)=98\approx97[/tex]
(the discrepancy here might be coming from finding a numerical value for [tex]\theta[/tex])
(10) is correct. We can find a unit vector pointing in the direction of any vector [tex]\mathbf v[/tex] by dividing [tex]\mathbf v[/tex] by its magnitude:
[tex]\dfrac{\mathbf v}{\|\mathbf v\|}=\dfrac{\frac23\,\mathbf i-\frac12\,\mathbf j}{\sqrt{\left(\frac23\right)^2+\left(-\frac12\right)^2}}=\dfrac45\,\mathbf i-\dfrac35\,\mathbf j[/tex]
Reyesburg Corporation is contemplating using a new, more expensive glue in the construction of its laminated veneer lumber. Of importance to the company is the carrying load of the lumber. The company has tested 24 beams using the new glue, recording for each beam the pressure (in pounds per square foot) at which the beam breaks. The data collected are presented in the following histogram.
Answer:
The correct answer is 904.1 pounds per square foot
Step-by-step explanation:
(mcgraw)
find the values for A and B that would make the equality true
-5(3x^2+5x+b)=ax^2-25x+45
Answer:
a = - 15 and b = - 9
Step-by-step explanation:
distribute the left side
- 15x² - 25x - 5b
For - 15x² - 25x - 5b = ax² - 25x + 45
Then the coefficients of like terms must be equal, hence
comparing coefficients of x² term ⇒ a = - 15
comparing constant term ⇒ - 5b = 45 ⇒ b = - 9
Answer: a = -15, b = -9
Step-by-step explanation:
-5(3x² + 5x + b) = ax² - 25x + 45
-15x² - 25x - 5b = ax² - 25x + 45 distributed -5 on left side
Notice that the middle terms (-25x) are equal, so the the remaining terms will also be equal.
-15x² = ax² ⇒ -15 = a
-5b = 45 ⇒ b = -9
After changing its format, a radio station lost 34% of its listeners. If there were an estimated 83,000 listeners orginally, how many listeners does the radio station have now?
Final answer:
The radio station has 54,780 listeners now.
Explanation:
To find the number of listeners the radio station has now, we need to calculate the number of listeners it lost after changing its format. If the station lost 34% of its listeners, we can calculate the number of lost listeners by multiplying the original number of listeners by 0.34 (34%).
Lost Listeners = 83,000 * 0.34 = 28,220 listeners
To find the number of listeners the radio station has now, we subtract the lost listeners from the original number of listeners.
Number of Listeners Now = 83,000 - 28,220 = 54,780 listeners
I’m doing the Pythagorean Theron in math class an I’m stuck on this question - the base path of a base ball diamond form a square.if it is 90 feet from home to first how far does the catcher have to through to catch someone stealing second base
check the picture below.
If f(x) = 8x^2 - 5 what is f(-1)
Answer:
Step-by-step explanation:
f(-1)=8(-1)^2-5
f(-1)=8(1)-5
f(-1)=8-5
f(-1)=3
Answer:
3
Step-by-step explanation:
In this problem you substitute x for -1
8(-1)^2-5
zola has 575 beads.She needs 32 beads to make a necklace.How many necklaces
Answer:
17
Step-by-step explanation:
575/32=17.96875 or 17
Answer:
17 necklaces
Step-by-step explanation:
32n=575
n=575/32
n=17.96
Round down to 17, can't make .96 of a necklace.
Man can buy 4 containers of yogurt and 3 boxes of crackers for $9.55. She can buy 2 containers of yogurt and 2 boxes of crackers for $5.90. How much does one box of crackers cost?
Answer:
one box of crackers costs $0.70
Step-by-step explanation:
Let $x be the price of 1 container of yogurt and $y be the price of 1 box of crackers.
1. Man can buy 4 containers of yogurt and 3 boxes of crackers for $9.55. 4 containers of yogurt cost $4x and 3 boxes of crackers cost $3y. In total,
[tex]3x+4y=9.55.[/tex]
2. Man can buy 2 containers of yogurt and 2 boxes of crackers for $5.90. 2 containers of yogurt cost $2x and 2 boxes of crackers cost $2y. In total,
[tex]2x+2y=5.90.[/tex]
3. Solve the system of two equations:
[tex]\left\{\begin{array}{l}3x+4y=9.55\\2x+2y=5.90\end{array}\right.[/tex]
Multiply the second equation by 2 and subtract it from the first equation:
[tex]3x+4y-2(2x+2y)=9.55-5.90\cdot 2,\\ \\3x+4y-4x-4y=9.55-11.80,\\ \\-x=-2.25,\\ \\x=\$2.25.[/tex]
Then
[tex]2\cdot 2.25+2y=5.90,\\ \\2y=5.90-4.50,\\ \\2y=1.40,\\ \\y=\$0.70[/tex]
By setting up a system of equations and using elimination, we find that one box of crackers costs $2.25.
To solve the cost of one box of crackers, we need to set up two equations based on the information given:
4y + 3c = $9.552y + 2c = $5.90We use 'y' to represent the cost of one container of yogurt and 'c' for the cost of one box of crackers. To find the value of 'c', we can use substitution or elimination.
Let's eliminate 'y' by multiplying the second equation by 2, which gives us 4y + 4c = $11.80. Subtracting the first equation from this, we get:
c = $11.80 - $9.55
c = $2.25
So, one box of crackers costs $2.25.
In the triangle below which of the following is equivalent to the tangent of 52 degrees?
Answer:
Option D. [tex]\frac{24}{7}[/tex].
Step-by-step explanation:
In any right angle triangle tangent of an angle is the ratio of opposite side and adjacent side.
tan x =[tex]\frac{\text{Opposite side (24)}}{\text{Adjacent side (7)}}[/tex]
= [tex]\frac{24}{7}[/tex]
therefore, Option D. [tex]\frac{24}{7}[/tex] is the answer.
The box plot shows the data distributions for the number of laps two students run around a track each day
Answer:
C. The range of Liam's data set is 16
Step-by-step explanation:
Hello, my dear friend, I am sure the question you are intending should be corrected (See below question), as well as the box plot should be uploaded (See attached the image of the box plot I uploaded for you).
Q. The box plots show the data distributions for the number of laps two students run around a track each day. Which statement is true about the data?
Options:
A. The median of both data sets is 10.
B. The median of both data sets is 14.
C. The range of Liam’s data set is 16.
D. The range of Sumat’s data set is 17.
If this is the case, then the box plot shows the following data.
The median of Liam's data is 10, the range is (20-4) =16
The median of Sumat's data is 14, the range is (22-3) =19
The correct answer will therefore be:
C. The range of Liam's data set is 16
Can you answer this:
The box plots show the data distributions for the number of laps two students run around a track each day.
Which statement is true about the data?
The difference between the medians of both data sets is 2.
The difference between the medians of both data sets is 4.
The difference between the ranges of both data sets is 2.
The difference between the ranges of both data sets is 4
which is the solution for the equation y=5x+3
Juan has put together 325 pieces of a puzzle that has 500 pieces. He can put together 25 pieces every hour. How long will it take him to finish the puzzle?
Answer:The answer is 7 hours here is how I solved it. If it's out of 500 pieces and you've already done 325 then lets minus that so we only have to deal with the left over pieces. So 500- 325 which will give you 175 from there let's divide it by 25 to see how many hours it will take. Once you divide you will get 7 you can double check by doing 7 times 25 then add that to 325 to get 500 pieces.
Step-by-step explanation:
Can anyone help me with this question?
You don't need to help me with number 10 because i got it now help with the other's please.
Answer:
10)C 18,000
11) B 130.83
12)B or C not for sure
13) D the domain is 1 < f<7 the range is 24 < c(f)<168
Step-by-step explanation:
which equation can be used to find the measure of angle LKJ?
Answer:
D
Step-by-step explanation:
use the sine ratio in the right triangle
sin x = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{8.9}{10.9}[/tex], hence
x = [tex]sin^{-1}[/tex]( [tex]\frac{8.9}{10.9}[/tex] ) → D
Answer:
D
Step-by-step explanation:
Solve using double substitution
y=2x+5
6x-3y=6
Substitute y = 2x + 5 to the second equation 6x - 3y = 6:
6x - 3(2x + 5) = 6 use distributive property
6x - (3)(2x) - (3)(5) = 6
6x - 6x - 15 = 6
-15 = 6 FALSE
Answer: NO SOLUTION
Can someone show me what I need to do here
Answer:
A) 25/75
C) 1/3
F) 0.3333333(repeated decimal)
Step-by-step explanation:
He started out with 75 planners, and has 25 planners left, meaning he have 25/75 (or 1/3) of the planners left.
25/75 = 1/3 = 0.333333(repeated decimal)
What's the volume of a block of ice measuring 3 meters long, 1.5 meters wide and 2 meters high.
Answer: The volume of a block of ice is 9 meters
You have to LxWxH
Which expression is equivalent to x+x+x+x+2
Answer:
4x+2
Step-by-step explanation:
Answer:
4x + 2
Step-by-step explanation:
The given expression is x + x + x + x + 2
We can add the like terms.
The like terms are the terms having the same variable and the same exponents. The coefficients may vary.
For examples, 3x and -2x
2xy and 3xy
In the given expressions x, x, x, x are the like terms.
So, x + x + x+ x + 2
4x + 2
Therefore, the answer is 4x + 2
Write a number in which the value of the 3 is 10 times the value of the digit 3 in 156.32
Answer:
1563.2
Step-by-step explanation:
If you just multiply 0.3 by 10 you will get 3
Now all you need to do is write 3 or have a number which has unit place value of 3
Answer: The number in which the value of the 3 is 10 times the value of the digit 3 in 156.32 = 3
Step-by-step explanation:
The given number = 156.32
The place value of 3 in 156.32 is 3 tenth [since it the left most number after the decimal].
3 tenth can be written as [tex]\frac{3}{10}[/tex]
The number 10 times [tex]\frac{3}{10}[/tex]= [tex]10\times\frac{3}{10}[/tex]
Therefore, The number 10 times [tex]\frac{3}{10}[/tex]=3
Hence, the number in which the value of the 3 is 10 times the value of the digit 3 in 156.32 = 3
Show all work 3(x-2)=3x-2
Determine whether the equation has one solution, no solution, or an infinite number of solutions Use words,numbers,and/or symbols to justify your answer
What does y=-1/2x-4
Answer:
[tex]y = -1/2x - 4[/tex]
From this, you can tell it's in slope-intercept form, has a slope of -1/2, and a y-intercept of -4.
I've included a picture of what this equation looks like.