Answer:
To negative numbers makes a positive number.
(only in dividing and multiplying)
Step-by-step explanation:
Please mark me brainliest
a cleaning solution calls for a ratio of 1 cup of liquid cleanser to 6 cups of water. To make 42 cups of cleaning solution, how many cups of water are needed?
-3x - 8 = 10
Usatestprep
Answer:
X = -6
Step-by-step explanation:
Add 8 to both sides
- 3x = 18
divide by -3
x = -6
The residents of a village want to paint a sign that shows the elevation of their village relative to the sea. Their altimeter shows +2,100 feet. What should their signboard read?
A.
2,100 feet above sea level
B.
2,100 feet below sea level
C.
-2,100 feet above sea level
D.
+2,100 feet below sea level
Answer:
A.2,100 feet above sea level
Answer:
The answer would be A i took the test!
Step-by-step explanation:
what is 0.001332 in scientific notation i need help
Explanation:
A $129 Coach wallet has a 10% tax applied to it. What is the final cost of the wallet?
Help Me Pls!
Answer:
141.9
Step-by-step explanation:
129*10%
Move the decimal over 2 places
129×.10
12.9
129+12.9
141.9
Answer:
0.1x129=12.9 129+12.9=141.9
Let u = (1,5), v = (-3, 3), and w = (2,3). What is the direction angle of 4w - (2u + v)?
Answer: d=353.7°
Step-by-step explanation: edge 2020
The right rectangular prism below has a square base?Select yes or no.
Answer:
no
Step-by-step explanation:
if it's a prism then it wont have a square bottom
solve each inequality below using the Addition principle. Draw a graph of each solution set.
X-7 greater than O
Answer:
x > 7
Step-by-step explanation:
Given
x - 7 greater than 0
Required
Solve as inequality and represent as a graph
greater than is represented with >
So, the equation is:
x - 7 > 0
Add 7 to both sides
x - 7 + 7 > 0 + 7
x > 0 + 7
x > 7
Next, the inequality is represented on a graph.
See attachment for graph
The shaded part of the graph represents the solution to the graph.
PLEASE HELP!!!!!! I AM BEING TIMED!!!!
A garden hose fills a 2 gallon bucket in five seconds the number of gallons G is the proportional to the number of seconds T that the water is running select all the equations that represent the relationship between G and T
Answer:
A and E
Step-by-step explanation:
um for some reason my answer was deleted…
anyways, I think its A and E because the equation should be g = 2/5t and 0.4 is equal to 2/5 so that means that E is also correct.
What’s five divided by 50
Answer:
0.1
Step-by-step explanation:
plzz anwser ill give brainlest simplify 16- 8/15
Answer:
232/15 [as an improper fraction] or 15 7/15 [as a mixed fraction]
Explanation:
16 - 8 / 15 =
(16) - (8 / 15) =
((16 × 15) / 15) - ((8) / 15) =
((240) / 15) - ((8) / 15) =
(240 - 8) / 15 =
232 / 15 =
15 7/15
1
Which expression is NOT equivalent
to 1.24 X 0.9?
(124 x 90) x (160 x 100)
(124 X 9) * (100 x 10)
(0.124 X 9) X (10 x
(10 x 10)
(124 x 9) * (10 x 10)
The expression (124 × 9) × (1/10 × 1/10) is NOT equivalent to 1.24 × 0.9. which is the correct answer would be an option (D).
What is the expression?Expressions are defined as mathematical statements that have a minimum of two terms containing variables or numbers.
A. (124 × 90) × (1/100 × 1/100) simplifies to 1.24 × 0.9 because 124 × 90 = 11160 and 1/100 × 1/100 = 1/10000, so the expression is equivalent to (11160/10000) × 0.9 = 1.24 × 0.9.
Similarly, expressions B and C can be rearranged as (9 × 1/10) × (0.124 × 10), which is also equivalent to 1.24 × 0.9.
B. (124 × 9) × (1/100 × 1/10) simplifies to 1.24 × 0.9 because 124 × 9 = 1116 and 1/100 × 1/10 = 1/1000, so the expression is equivalent to (1116/1000) × 0.9 = 1.24 × 0.9.
C. (0.124 × 9) × (10 × 1/10) also simplifies to 1.24 × 0.9 because 0.124 × 9 = 1.116 and 10 × 1/10 = 1, so the expression is equivalent to (1.116/1) × 0.9 = 1.24 × 0.9.
However, expression D cannot be rearranged to the form 1.24 × 0.9 because it contains the factors 124 and 90, which are not equivalent to 1.24 and 0.9, respectively.
Therefore, expression D is not equivalent to 1.24 × 0.9.
Learn more about the expression here :
brainly.com/question/21751419
#SPJ2
A circle representing a pool is graft with a center at the origin grant enters the pool at point A and swims over to a friend who is located at point B
which equation represents grants path
Y=2-4x
Y=4-x/2
Y=6-x/4
Y=8-2x
What happens to the graph of f(x) = 3(.96)when a constant is added
to it and it becomes f(x) = 3(.96)X + 12?
Answer:
The graph of the function gets vertically shifted upwards by 12 units.
Step-by-step explanation:
what should be done so that the expression 4+4 to the power of 2 - 5×2 will have a value of 10?
Answer: 8 x 8 = 64 - 10 = 64 so you need add the another times operation 64 - 54 x 1 = 10
Please help me out ill give more points!
A punch recipe requires 2 cups of cranberry juice to make 3 gallons of punch. Using the same recipe, how many cups of cranberry juice are needed for 1 gallon of punch? Use / as a fraction bar.
pls help me as fast as u can
Answer:
1.5
Step-by-step explanation:
since 2 cups equals 3 gallons you can divide 3 by 2 and get 1.5. so there are 1.5 cups per gallon hope it helps
In a bag, the ratio of red beads to blue beads is 3∶ 5. Beads are added to the bag, but the ratio of red beads to blue beads remains the same.
In this question, we use the ratio given to complete the table.
Doing this, the completed table is:
3 - 5 - 8
6 - 10 - 16
9 - 15 - 24
12 - 20 - 32
60 - 100 - 160
75 - 125 - 200
In a bag, the ratio of red beads to blue beads is 3∶5.
This means, that for each 3 beads, there are 5 blue beads, and for each 8 beads, there are 3 red and 5 blue.
Third line:
15 blue, the amount of red is 3/5 of this, so:
[tex]\frac{3}{5}(15) = 3(3) = 9[/tex]
Thus, there are 9 red, 9 + 15 = 24, and thus, the third line is:
9 - 15 - 24
Fourth line:
32, 3/8 are red and 5/8 are blue, so:
[tex]\frac{3}{8}(32) = 3(4) = 12[/tex]
[tex]\frac{5}{8}(32) = 5(4) = 20[/tex]
Thus, the fourth line is:
12 - 20 - 32
Fifth line:
100 blue, the amount of red is 3/5 of this, so:
[tex]\frac{3}{5}(100) = 3(20) = 60[/tex]
60 + 100 = 160
Thus, the fifth line is:
60 - 100 - 160
Sixth line:
75 red, the amount of blue is 5/3 of this, so:
[tex]\frac{5}{3}(75) = 5(25) = 125[/tex]
75 + 125 = 200.
Thus, the sixth line is:
75 - 125 - 200
The complete table is:
3 - 5 - 8
6 - 10 - 16
9 - 15 - 24
12 - 20 - 32
60 - 100 - 160
75 - 125 - 200
A similar question is found at: https://brainly.com/question/19159260
Suppose you run a bookstore, and have ratings (1 to 5 stars) of books. Your collaborative filtering algorithm has learned a parameter vector for user j, and a feature vector for each book. You would like to compute the "training error", meaning the average squared error of your system’s predictions on all the ratings that you have gotten from your users. Which of these are correct ways of doing so (check all that apply)For this problem, let m be the total number of ratings you
have gotten from your users. (Another way of saying this is
that m=∑nmi=1∑nuj=1r(i,j)). [Hint: Two of the four options below are correct.]
a) 1m∑(i,j):r(i,j)=1((θ(j))Tx(i)−r(i,j))2
b) 1m∑nmi=1∑j:r(i,j)=1(∑nk=1(θ(j))kx(i)k−y(i,j))2
c) 1m∑(i,j):r(i,j)=1((θ(j))Tx(i)−y(i,j))2
d) 1m∑nuj=1∑i:r(i,j)=1(∑nk=1(θ(k))jx(k)i−y(i,j))2
A cereal manufacture has a machine that files the boxes. Boxes are labeled as 16 ounces, which is the target fill (x). The lawyers want to fill the boxes more to avoid lawsuits regarding under filling and the company president vetoes that plan, saying the company should be giving away less free cereal, not more. Her goal is to set the machine no higher than 16.2 ounces and have only 4% underweight boxes. The only way to accomplish this is to reduce the standard deviation. What standard deviation must the company achieve
Answer:
σ = 0,11
Step-by-step explanation:
We assume the boxes filling process follows a Normal Distribution, then
z(score) = ( X - μ ) /σ or z(score) = ( μ - X ) /σ
depending of the tail of the curve ( as we are evaluating boxes below mean we need to use the second equation )
where μ and σ are the mean and the standard deviation of the population
As the goal is to have boxes with no higher than 16,2 ou and only 4% of underweight boxes
4% is 0,04 that should be the area under the bell shape curve then from z table we find z(s)
z(s) = - 1,75
z(s) = ( μ - X )/σ
- 1,75 = ( 16,2 - 16 ) / σ
σ = 0,2 / 1,75
σ = 0,11
What is the slope of the line represented by the values in the table ?
Answer:
2
Step-by-step explanation:
14-(-2)/10-2
14+2/10-2
16/8
2
Find the value of 24/25 divided by 4/5. Show your reasoning
Answer: 6/5
Step-by-step explanation:
24/25 divided by 4/5 equals 1.2 as a decimal and 6/5 as a fraction.
The simplified form of the expression is 30
Given the expression 24/25 divided by 4/5, this can also be written as:
x = 24/25 ÷ 4/5Replace the division sign with multiplication sign to have:
x = 24/25 × 5/4
x = 6 × 5
x = 30
Hence the simplified form of the expression is 30
Learn more on division here: https://brainly.com/question/25289437
please help meeee
I need helpppp
Answer:
the slope is 5 i do y feel like doing the work buuut ik im right mark me as brainlyest if im right
Which equation is NOT an example of a linear function? A) y = 9 - 2x 6 B) y X C) y= + 9 2 D) y у; X-8 6
Answer:
c
Step-by-step explanation:
im sorry if it's not correct
IDK- PLS HELP ME plss
Answer:
C and D
Step-by-step explanation:
all you do is multiply :)
An artist has completed 1/4 of paintings in 2 weeks. At what rate is she working?
Answer: the rate is (1/8) paintings per week
Step-by-step explanation:
We usually define the rate as the amount of work done in some unit of time.
In this case, we know that the artist does 1/4 of a painting in 2 weeks, then the rate can be written as:
(1/4)/2 paintings/week = (1/8) paintings/week.
This means that the rate is (1/8) paintings per week, this is the weekly rate at which she works.
Trevor drove 202 miles in 4 hours and Maggie drove 330 miks in 6 hours. Which friend drove faster
Answer:
well trevor drove in a less time but maggie went faster so if you want who was the fastest it was trevor but and you want who went the farthest it was maggie
Step-by-step explanation:
hope this helps
Answer:
Trevor drove faster.
Explanation:
Since Maggie's miles did not double the amount with the addition of 2 more hours, I would assume her speed was slower.
3x2 + 18x + 27
How many solutions does the quadratic equation have?
Answer:
Has only 1 solution
Step-by-step explanation:
The container that holds the water for the football team is 16 full. After pouring in 11 gallons of water, it is 23 full. How many gallons can the container hold?
Answer:
100
Step-by-step explanation:
The average size of single-family homes in the U.S. is 2,390 square feet. A random sample of 100 homes in California yielded the mean of 2,507 square feet and the standard deviation of 257 square feet. Do the sample data provide sufficient evidence to conclude that the mean size of California homes exceeds the national average? Test using significance level of 0.01. (7 Points)
Answer:
The decision rule is
Reject the null hypothesis
The conclusion is
There is sufficient evidence to conclude that the mean size of California homes exceeds the national average
Step-by-step explanation:
From the question we are told that
The population mean is [tex]\mu = 2390 \ ft^2[/tex]
The sample size is n = 100
The sample mean is [tex]\= x = 2 507 \ ft^2[/tex]
The standard deviation is [tex]s = 257 \ ft^2[/tex]
The level of significance is [tex]\alpha = 0.01[/tex]
The null hypothesis is [tex]H_o : \mu = 2390[/tex]
The alternative hypothesis is [tex]H_a : \mu > 2390[/tex]
Generally the test statistics is mathematically represented as
[tex]z = \frac{ \= x - \mu }{ \frac{s}{ \sqrt{n} } }[/tex]
=> [tex]z = \frac{2507 - 2390 }{ \frac{ 257 }{ \sqrt{100 } } }[/tex]
=> [tex]z = 4.55[/tex]
From the z table the area under the normal curve to the left corresponding to 4.55 is
[tex]p-value = P( X > 4.55 ) = 0.00[/tex]
From the value obtained we see that [tex]p-value < \alpha[/tex] hence
The decision rule is
Reject the null hypothesis
The conclusion is
There is sufficient evidence to conclude that the mean size of California homes exceeds the national average