4.5 m is ...% of 90 cm, an 90cm is ...% of 4.5 m
Answers
Answer:
4.5 m is 5% of 90 cm
90cm is 2000% of 4.5 m
Step-by-step explanation:
(4.5/90) x 100 = 5%
(90/4.5) x 100 = 2000%
For both of these equations, I used the formula
(value/total value)×100 = percentge
Related Questions
bryan’s hockey team is purchasing jerseys the company charges 250$ for a one time set up fee and 23$ for each printed jersey which expression represents the total cost of x number of jerseys for the yeam
Answers
Answer:
23x+250 and that would equal your total cost
A square has an area of 56 units, find the length of the side in simplest form. Has to be an Improper fraction.
Answers
The length of the side of the square in simplest form is 2sqrt(14).
The area of a square is given by the formula \(A = s^2\), where A is the area and s is the length of a side.
We are given that the area of the square is 56 units, so we can set up the equation:
\(56 = s^2\)
To solve for s, we can take the square root of both sides of the equation:
sqrt(56) = \(sqrt(s^2)\)
We can simplify the square root of 56 by factoring it:
sqrt(56) = sqrt(222*7) = 2sqrt(14)
So, we have:
2sqrt(14) = s
This is an improper fraction because the numerator is larger than the denominator. Therefore, the length of the side of the square in simplest form is 2sqrt(14).
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Will give brainliest if correct
Which congruence theorem can be used to prove △BDA ≅ △BDC?
Triangles B D A and B D C share side B D. Sides B C and B A are congruent. Sides A D and D C are congruent.
HL
SSA
AAS
SSS
Answers
Answer:
SSS or D on edge
Step-by-step explanation:
.
The three sides of triangle ΔBDA are equal to the three sides of triangle ΔBDC.
The congruency theorem that can be used to prove ΔBDA ≅ ΔBDC is; SSSReasons:
The given parameters are;
The common side to ΔBDA and ΔBD = BD
BC ≅ BA
AD ≅ DC
The two column proof is presented as follows;
Statement \({}\) Reasons
BC ≅ BA \({}\) Given
AD ≅ DC \({}\) Given
BD ≅ BD \({}\) By reflexive property
Therefore, we have;
ΔBDA ≅ ΔBDC \({}\) By Side-Side-Side SSS, congruency ruleThe congruency theorem that can be used to prove ΔBDA ≅ ΔBDC is therefore;
SSSThe Side-Side-Side congruency rule states that if three sides of on triangle are congruent to three sides of another triangle, then the two triangles are congruent.
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Select the
Suppose Phil reads a book that contains 16 conspiracy theories. When he researches the
theories, he finds that 75% of them are false. How many of the theories are true?
Answers
Answer:
4 of the conspiracy theories were true
Step-by-step explanation:
Percentages
Phil read a book with 16 conspiracy theories, 75% of which were false. It means that 25% of them were true.
25% of 16 is 25 * 16 / 100 =400 / 100 = 4
Thus, 4 of the conspiracy theories were true
How many seconds is in 1 hour and 30 minutes
Answers
Answer:
5400 seconds
Step-by-step explanation:
Answer: 5400
Step-by-step explanation: Each hour is 60 minutes and each minute is 60 seconds. 60 x 60 = 3600. To convert 30 minutes into seconds you multiply 30 x 60 which equals 1800. Then you add 3600 + 1800 and you get 5400.
What is the determinant of the coefficient matrix of the system?
please help!!!
Answers
Answer:
Third option: 0
Step-by-step explanation:
edge2020
Answer:
The answer is 0!
Step-by-step explanation:
edge 2021
If t is time in hours, what does this function represent?
f(t) = 2.0.3^t
A. a 30-percent increase every hour
B. a 30-percent decrease every hour
C. a 70-percent decrease every hour
D. a 100-percent increase every hour
Answers
Answer:
C. a 70-percent decrease every hourStep-by-step explanation:
Given function:
f(t) = 2.0*(0.3)^tThis is exponential decay because:
0.3 = 1 - 0.7 = 100% - 70%and it represents 70% decrease every hour (if it is time in hours)
Correct choice is C
solve x=√x+6
Do not include extraneous solutions.
X=?
Answers
Which of the figure has reflectional symmetry
A. Figure C
B. Figure B
C.Figure D
D.Figure A
Answers
The figure that shows a reflectional symmetry would be figure C. That is option A.
What is reflectional symmetry of shapes?The reflectional symmetry of shapes is defined as the type of symmetry where one-half of the object reflects the other half of the object.
This is also called a mirror symmetry. This is because the image seen in one side of the mirror is exactly the same as the one seen on the other side of the mirror.
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Venessa bought 80 apples for 4$.out of these apples 25 precent were rotten and had to be thrown away Vanessa sold the remaining apples at 6 cents per apple. What is the profit or loss percentage
Answers
The loss percentage is 91%.Given that Venessa bought 80 apples for 4$, out of these apples, 25% were rotten and had to be thrown away. Venessa sold the remaining apples at 6 cents per apple.To calculate the profit or loss percentage, we need to determine the cost price, selling price, and the number of apples sold.
Cost price (CP) = 4 $.Selling price (SP) = 80 × 0.75 × 6 cents= 36 cents = 0.36 $.Now, let's calculate the profit.Profit = SP – CP= 0.36 $ – 4 $= – 3.64 $Loss = CP – SP= 4 $ – 0.36 $= 3.64 $.
Therefore, Venessa incurred a loss of $3.64 when she sold 80 apples at 6 cents per apple.Now let's calculate the loss percentage Loss Percentage = (Loss / CP) × 100= (3.64 / 4) × 100= 91%.
Therefore, the loss percentage is 91%.Note: If the result obtained after the subtraction of SP from CP is negative, it means there is a loss, and the percentage of loss can be calculated by (loss/CP) × 100.
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2y = 4x - 12
Find the x and the y intercept of the line.
Answers
0 = 4x - 12
Adding 12 to both sides:
12 = 4x
Dividing both sides by 4:
3 = x
For Y:
2y = 4(0) - 12
2y = -12
Dividing both sides by 2:
y = -6
Therefore, the y-intercept of the line is y = -6.
A bag with 8 marbles has 4 red marbles, 3 blue marbles, and 1 yellow marble.A marble is chosen at random. What is the probability that it is red? Write your answer as a fraction in simplest form.
SOMEONE PLEASE HELP ME IM SO STUCK
Answers
Answer:
1/4
Step-by-step explanation:
First you add all of the marbles in the bag which is 16 marbles. The fraction of red marbles to the total would be 4/16. In the simplest form that is 1/4. You can also just do 4 divide by 16 which gives you 0.25 and in decimal form that is 1/4.
4.8 is 8% of what number?
Answers
Answer:
60
Step-by-step explanation:
8 percent (calculated percentage %) of what number equals 4.8? Answer: 60.
a line has a slope of 1/2 and a y intercept of -2
what is the the x intercept of the line?
Answers
Answer:
x-intercept = (4,0)
Step-by-step explanation:
Slope = 1/2
y-intercept = -2
x-intercept =?
Step 1 ; Use the given information to derive the equation of the line.
Substitute values into ; y=mx+b
Where m = slope
b = y-intercept
Equation = \(y =\frac{1}{2} x -2\)
Step 2 ; Calculate the x-intercept
Arrange the equation in standard form ; Ax +By = C
\(-\frac{1}{2} x +y = -2\)
Let y = 0
\(-\frac{1}{2}x+0=-2\\ \\-\frac{1}{2}x = -2\)
Cross Multiply
\(-x\times 1 =-2\times 2\\\\-x = -4\\\\x =4\\\\(4,0)\)
So ; (4,-2)
I need help with this please
Answers
Answer: I think 2.74 dollars but I could be wrong
1.7•1.6
the apples cost 2.74 dollars
Please explain your answer to the question in the picture with steps
Answers
Answer:
x = 31.2
Step-by-step explanation:
You want the solution to the proportion 12/x = 5/13.
Rational equationYou can eliminate the fractions by multiplying this equation by the least common denominator. That value is 13x, the product of these denominators. Multiplying by 13x, we have ...
\(\dfrac{12}{x}\times13x=\dfrac{5}{13}\times13x\\\\\\12\cdot13=5\cdot x\qquad\text{simplified}\)
Now, the value of x is found by dividing both sides by its coefficient.
\(\dfrac{12\cdot13}{5}=\dfrac{5x}{5}\\\\\\\dfrac{156}{5}=x\\\\\boxed{31.2=x}\)
__
Additional comment
The first step we did, multiplying by 13x, is also sometimes called "cross multiplication." The result of that step is that each numerator is multiplied by the opposite denominator.
Multiplying both sides of the equation by the same value (13x) is supported by the multiplication property of equality. The term "cross multiplication" is descriptive of the result, but is not a recognized property of equality. It is a good idea to keep the math operations you do grounded in the properties of equality.
You will notice that the steps we did were "multiply by 13x" and "divide by 5". These can be done at once by "multiply by 13x/5". Of course, that operation is done to both sides of the equation.
Any proportion can be written 4 ways:
\(\dfrac{12}{x}=\dfrac{5}{13}\qquad\dfrac{x}{12}=\dfrac{13}{5}\qquad\dfrac{x}{13}=\dfrac{12}{5}\qquad\dfrac{13}{x}=\dfrac{5}{12}\)
These can be thought of as "upside down" and "sideways." We like the versions with the variable on top of a fraction, because the solution to that is simply multiplication by the variable's denominator.
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Please help i really need this i will give a brainliest to the people that answer correctly
1st options: a positive, a negative, no
2nd options: decreases, increases, varies
Answers
Answer:
There is a negitve corrilation because as time increases speed decreases
Step-by-step explanation:
In one area, the lowest angle of elevation of the sun in winter is 24degrees Find the distance x that a plant needing full sun can be placed from a fence that is 10.5 feet high. Round your answer to the tenths place when necessary. PLEASE HELP ASAP
Answers
Answer:
round answer is : 10 ft
Step-by-step explanation:
The explanation is in the picture!
Two books, A and B, are sold in three stores, X, Y and Z. The number of copies of book A sold in a month is 40, 20, and 60 from stores X, Y, and Z, respectively. The number of copies of book B sold is 10, 70, and 20 from X, Y, and Z, respectively. The profit from the sales of book A is $4, and the profit from the sales of book B is $1 for all the three stores. Which matrix represents the profit from the sales of book A for each store?
Answers
The matrix representing the profit from the sales of book A for each store is:
[ $4 ]
[ $4 ]
[ $4 ]
To represent the profit from the sales of book A for each store, we can use a matrix where the rows correspond to the stores (X, Y, Z) and the columns correspond to the book A.
The matrix representing the profit from the sales of book A for each store is as follows:
Store Book A
X $4
Y $4
Z $4
Therefore, the matrix representing the profit from the sales of book A for each store is:
[ $4 ]
[ $4 ]
[ $4 ]
Each element in the matrix represents the profit from the sales of book A in a specific store, which is $4 for all stores (X, Y, Z).
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Help please this is a practice question for points-the other option is $27
Answers
Answer:
price of B is $27 more than A
Explanation:
For brand A;
Using the coordinate (2,24) and (4,48)
Slope m = 48-24/4-2
m = 24/2
m = 12
Get the y-intercept
y = mx+b
24 = 12(2) + b
24 = 24 + b
b = 0
The equation will be;
y = 12x
For cost of 9 bottles of A
y = 12(9)
y = $108
For Brand B:
y = 15x
x is the number of bottles
For cost of 9bottles;
y = 15(9)
y = $135
Hence 9 bottles of brand B cost $135
Take the price difference;
Difference = $135 - $108
Difference = $27
Hence the price of B is $27 more than A
34 miles
30 mph
How much time will it
take for these two
vehicles to meet?
55 mph
[?] hours
![34 miles30 mphHow much time will ittake for these twovehicles to meet?55 mph[?] hours](https://i5t5.c14.e2-1.dev/h-images-qa/contents/attachments/lJao5IqrAPJR8grB8BLa8305HMimCTar.png)
Answers
Answer:
0.4 hours
Step-by-step explanation:
or 24 minutes :D
A bacteria culture doubles every 5 hours. Determine the hourly growth rate of the bacteria
culture. Round your answer to the nearest tenth of a percent.
Answers
Answer:
10
Step-by-step explanation:
Using an exponential function, it is found that the hourly growth rate of the bacteria culture is of 14.9%.
------------------------
An exponential function has the following format:
\(A(t) = A(0)(1+r)^t\)
In which:
A(0) is the initial amount.r is the hourly growth rate.------------------------
Since it doubles every 5 hours, it means that:
\(A(5) = 2A(0)\)
And we use this to find r.
------------------------
\(A(t) = A(0)(1+r)^t\)
\(2A(0) = A(0)(1+r)^5\)
\((1 + r)^5 = 2\)
\(\sqrt[5]{(1 + r)^5} = \sqrt[5]{2}\)
\(1 + r = 2^{\frac{1}{5}}\)
\(1 + r = 1.149\)
\(r = 1.149 - 1 = 0.149\)
0.149*100% = 14.9%.
The hourly growth rate of the bacteria culture is of 14.9%.
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where should the graph of the line y=2x - 2 intersect the y axis
Answers
The graph of the line y = 2x - 2 intersects the y-axis at the point (0, -2).
Calculating where the graph intersects the y-axisGiven that we have the following equation
y = 2x - 2
The equation of a straight line in the standard form is y = mx + c, where m is the slope of the line, and c is the y-intercept. The y-intercept is the point at which the line intersects the y-axis.
The equation of the line is y = 2x - 2. To find where the line intersects the y-axis, we need to set x = 0 and solve for y.
So, when x = 0, we get:
y = 2(0) - 2
y = -2
Therefore, the line intersects the y-axis at the point (0, -2).
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There is a mistake in this problem find the mistake
Answers
Answer:
The mistake is the problem itself. It should be
5x=100
x=100÷5
x=20
Step-by-step explanation:
The mistake is the problem itself. It should be
5x=100
x=100÷5
x=20
IF U GET CORRECT U GET BRAINLIEST
The last five houses built in town sold for the prices shown below. Find the mean price. Use pencil and paper. If a new house built in the town sold for $160,000, how would that affect the mean?
prices: $181,00; $187,00; $144,00; $176,00; $175,00
what is the mean price of the houses??
Answers
Answer:
172,600
Step-by-step explanation:
hii so basically the mean is the same as average so add all together and divide by how many prices in this case there originally were
so 181,000+187,000+144,000+176,000+175,000=863,000
then divide by 5
863,000/5=172,600
hope this helped !
You want to fit a linear regression model to a large dataset and need to determine the number of predictors to use. Below is a plot of four statistics from this model valued for various number of predictors:
Determine which of the following best describes each line. No explanation needed.
(A) W is test MSE, X is variance, Y is squared bias, Z is training MSE
(B) W is variance, X is squared bias, Y is test MSE, Z is training MSE
(C) W is training MSE, X is test MSE, Y is variance, Z is squared bias
(D) W is test MSE, X is training MSE, Y is variance, Z is squared bias
(E) W is variance, X is training MSE, Y is test MSE, Z is squared bias
Answers
(A) W is test MSE, X is variance, Y is squared bias, Z is training MSE is the best description of each line in linear regression model
From the given plot, we can see that:
The blue line (W) is decreasing with increasing number of predictors, which indicates that it represents variance.
The green line (X) is increasing with increasing number of predictors, which indicates that it represents training MSE.
The red line (Y) is decreasing with increasing number of predictors, which indicates that it represents test MSE.
The purple line (Z) is roughly constant and does not show any clear trend with increasing number of predictors, which indicates that it represents squared bias.
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Question is in the picture it’s a lot to type
Answers
1.
The ratio of their volumes is,
\(\begin{gathered} \text{Ratio}=\frac{108ft^3}{4000ft^3} \\ =\frac{27}{1000} \end{gathered}\)Thus, the ratio of volume is 27:1000.
2.
The scale factor can be determined as,
\(\begin{gathered} \text{Scale factor=(}\frac{4000ft^3}{108ft^3})^{\frac{1}{3}} \\ =10\colon3 \end{gathered}\)Thus, the scale factor is 10:3.
3.
The ratio of surface area is,
\(\begin{gathered} \text{Ratio of surface area=(}\frac{3}{10})^2 \\ =9\colon100 \end{gathered}\)Thus, the ratio of surface area is 9:100.
4.
The surface area of the smaller cube can be determined as,
\(\begin{gathered} \frac{9}{100}=\frac{SA_{sc}}{SA_{bc}} \\ \frac{9}{100}=\frac{SA_{sc}}{157ft^2} \\ SA_{sc}=14.13ft^2 \end{gathered}\)Thus, the surface area of the smaller cube is 14.13 square foot.
Corresponding angles are
A. Complementary
B.Equal
C. Supplementary
Answers
Answer:
equal
Step-by-step explanation:
When the two lines are parallel Corresponding Angles are equal
The radius of a cone can be found using the formula
3V
=√√3, where V stands for the volume of the cone and h
V xh)
stands for the height. If r = 4, h = 8, and is 3.14, find the
volume (V). Round the answer to the nearest hundredths
place.
O 133.97 cubic units
O 33.49 cubic units
O 3,365.41 cubic units
O 66.99 cubic units
Answers
Answer: The answer would be 133.97 cubic units
Step-by-step explanation:
\(V=\pi r^2*h/3\\V = 3.14 *4^2* 8/3\\V= 133.97\)(rounded to the nearest hundredths place)
Check all the statements) that are true about the polynomial function graphed
Its leading coefficient is positive. its leading coefficient is negative.
It has an odd degree
It has an even degree
It has exactlv two real zeroes
It has exactly three real zeroes.
None of the zeroes have even multiplicity
None of the zeroes have odd multiplicity.
Answers
The true statements about the polynomial function graphed are:
Its leading coefficient is positive.
It has an odd degree.
None of the zeroes have even multiplicity.
From the given options, the true statements about the polynomial function graphed are:
Its leading coefficient is positive.
It has an odd degree.
None of the zeroes have even multiplicity.
Let's analyze each statement:
Its leading coefficient is positive:
The leading coefficient of a polynomial is the coefficient of the term with the highest degree.
From the graph, if the polynomial is going upwards on the right side, it indicates that the leading coefficient is positive.
It has an odd degree: The degree of a polynomial is the highest power of the variable in the polynomial expression.
If the graph has an odd number of "turns" or "bumps," it indicates that the polynomial has an odd degree.
None of the zeroes have even multiplicity:
The multiplicity of a zero refers to the number of times it appears as a factor in the polynomial.
In the given graph, if there are no repeated x-intercepts or no points where the graph touches and stays on the x-axis, it implies that none of the zeroes have even multiplicity.
The other statements (its leading coefficient is negative, it has an even degree, it has exactly two real zeroes, it has exactly three real zeroes, and none of the zeroes have odd multiplicity) cannot be determined based solely on the information given.
Therefore, the true statements about the polynomial function graphed are:
Its leading coefficient is positive.
It has an odd degree.
None of the zeroes have even multiplicity.
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