Step-by-step explanation:
2 cups of sugar mix with 7 cups of water.
so, 2/2 = 1 cup of sugar mixes therefore with 7/2 = 3.5 cups of water.
and 5 cups of sugar (= 5×1 cups) mix with 5×3.5 = 17.5 cups of water.
not 21. not 28. it is 17.5 cups of water !
The distance between the points (-10, -7) and and (-8, 1) round to the nearest tenth is
The distance between two points A (-10, -7) and B(-8,1) will be equal to 8.2 units.
What do you mean by the distance between points ?
Distance between two points is the length of the line segment that connects the two locations in a plane.
It is given that the distance between points A (-10, -7) and B(-8,1) is to be calculated.
We can find out the distance by using the distance formula which is given by :
AB = [tex]\sqrt({x_{2} - x_{1})^2 + (y_{2}- y_{1})^2}[/tex]
AB = √ [( -8 -(-10)]^2 + [ 1 - (-7)]^2}
AB = √ (2² + 8²)
AB = √68
AB = 8.24 units
If we round off it to the nearest tenth then , hundredth place is less than 5 that meant 2 will be at the tenths place.
or
AB = 8.2 units.
Therefore , the distance between two points A (-10, -7) and B(-8,1) will be equal to 8.2 units.
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-4 times the difference of six and a number is at least seven times the number
Two angles are supplementary. The larger angle is 88∘ more than the smaller angle. Find the measure of the larger angle.
Step-by-step explanation:
Mathematically the statement can be written as
SUPPLEMENTARY Angles add up to 180°
x+y=180°....(1)
let y be the larger angle and x be the smaller angle.
y=x+88°....(2)
plug in the (2) in the first equation
[tex]x + (x + 88) = 180 \\ 2x + 88 = 180 \\ 2x = 180 - 88 \\ 2x = 92 \\ \frac{2x}{2} = \frac{92}{2} \\ x = 46[/tex]
the measure of the larger angle is y=x+88°
[tex]y = 46 + 88 \\ y = 134[/tex]
The bigger angle is equal to 134°
HOPE THIS HELPS!!!!
Answer: 134°
here's your answer
A random experiment has sample space Ω = {a, b, c} and probabilities pa = 1/7, pb = 2/7 and pc = 4/7. Describe an urn experiment that can be used to simulate this random experiment.
To find the probability of an outcome the steps are as follows:
Find the total number of outcomes of the random experiment. Find the number of favorable outcomes. Divide step 2 by step 3 to determine the probability.The sample space S of a random experiment is defined as the set of all possible outcomes of an experiment. In a random experiment, the outcomes, also known as sample points, are mutually exclusive .Urn -some objects of real interest are represented as colored balls .
Given data
space Ω = {a, b, c}
p(a )= 1/7,
p(b) = 2/7 and
p(c) = 4/7.
p(E) = p(a) + p(b) +p(c).
where p(E) = random experiment i. e. union
p(E) = 1/7 + 2/7 + 4/7
p(E) = 7/7
p(E) =1
An outcome is a result of a random experiment. The set of all possible outcomes is called the sample space. Thus in the context of a random experiment, the sample space is our universal set. Here are some examples of random experiments and their sample spaces:
Random experiment: toss a coin; sample space: S={heads,tails} or as we usually write it, {H,T}.
Random experiment: roll a die; sample space: S={1,2,3,4,5,6}.
Random experiment: observe the number of iPhones sold by an Apple store in Boston in 2015; sample space: S={0,1,2,3,⋯}.
Random experiment: observe the number of goals in a soccer match; sample space: S={0,1,2,3,⋯}.
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How to simplify the square root of 36
Answer:
6
Step-by-step explanation:
6 times 6 = 36, so 6 is the answer
Hope this helps. Please mark me brainliest!
The answer to the question 36/12=3
Someone help me on this math paper
The measure of the angles 1,2 and 3 are 75, 42 and 138 respectively.
The value of ∠1 = 180- 105 [supplementary angles]
∠1 = 75°
∠1 + ∠2 + 63° = 180 [angle - sum property]
75 + ∠2 + 63 = 180
∠2 = 180 - (75 + 63)
∠2 = 42°
∠2 + ∠3 = 180 [supplementary angles]
42 + ∠3 = 180
∠3 = 180 - 42
∠3 = 138°
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Which point is a solution to the system?
(0,-1)
(2,3)
(4,0)
(6,-6)
a solution to the system of inequalities will be a point within the intersection region, namely the region overlapped by both, Check the picture below.
The cube root parent function is horizontally stretched by a factor of 4, then translated 5 units right and 3 units up, write an equation to represent the new function
The equation of the function is h(x) = ∛[(1/4)x - 5] + 3 if the cube root parent function is horizontally stretched by a factor of 4.
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
It is given that:
The cube root parent function is horizontally stretched by a factor of 4, then translated 5 units right and 3 units up.
The parent function is:
f(x) = ∛x
Horizontally stretched by a factor of 4:
g(x) = ∛[(1/4)x]
Translated 5 units right:
G(x) = ∛[(1/4)x - 5]
Translated 3 units up:
h(x) = ∛[(1/4)x - 5] + 3
Thus, the equation of the function is h(x) = ∛[(1/4)x - 5] + 3 if the cube root parent function is horizontally stretched by a factor of 4.
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WHO EVER GETS THIS QUESTION RIGHT WILL GET 30 POINTS!
A school district has paid a construction business 1.5 million to build a school, but still needs to pay the construction business 12.35 million for the total amount of work. How much will it cost to build the school?
PLEASE SHOW WORK!
It will cost 13.85 million to build the school
How to calculate the amount of money it will take to build the school ?The school district paid a construction business 1.5 million to build a school
They still need to pay 12.35 million for the total amount of work
Therefore the cost of building the school can be calculated as follows
= 1.5 million + 12.35 million
= 13.85 million
Hence it will cost 13.85 million to build the school
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Betty can mow a lawn in 90 minutes. Melissa can mow the same lawn in 60 minutes. How long does it take for both Betty and Melissa to mow the lawn if they are working together? Express your answer as a reduced fraction.
____________ minutes
Answer:
36 min
Step-by-step explanation:
rate b = 1 / 90
rate m = 1/60
now add the rates together for 1 lawn
1 lawn / (1/60 + 1/90) = 36 min
Cristina keeps track of how many items are sold each week so she can figure
out how much she needs to bake for the next week. Pretzel rolls are her best-
selling bread. Here are the weekly sales of pretzel rolls in March.
Week
Number of Pretzel Rolls Sold
March 1-7
287
March 8-14 304
March 15-21271
March 22-28 316
Rounding to the nearest 10, what is the best estimate of the number of
pretzel rolls sold in March? Enter your answer in the box.
The estimate of the number of pretzel rolls sold in March will be 890.
How to illustrate the information?The following can be deduced based on the information that given:
March 8-14. 304
March 15-21 271
March 22-28. 316
Therefore, it should be noted that 304 to the nearest ten is 300.
271 to the nearest ten will be 270
316 to the nearest ten will be 320
Therefore, the total number sold in March will be:
= 300 + 270 + 320
= 890
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(X to the second power y to the fifth power)5
Answer:
[tex](x^2y^5)5 = 5x^2y^5[/tex]
Step-by-step explanation:
Remove the parentheses to factor.
[tex]= x^2y^5 \times 5[/tex]
Flip the expression, creating a leading term and simplifying the equation.
[tex]= 5x^2y^5[/tex]
How can I solve this without using a Calculator?
Answer:
D
Step-by-step explanation:
[tex]h(x)=2x^5+(a+s)x^4+(b+t)x^3[/tex]
For the polynomial to be divisible by x⁴, the coefficient od the x³ term must be 0, and thus the answer is D.
The sum of a three-digit number and one-digit number is 731. The product of the numbers is 2,908. What are the numbers?
Solving a system of equations we can see that the two numbers are 727 and 4
How to find the two numbers?Let's define x as the 3-digit number and y as the one-digit number.
Then we know that the sum is equal to 731:
x + y = 731
And the product is equal to 2,908, then:
x*y = 2,908
So we have a system of equations:
x + y = 731
x*y = 2,908
Isolating x on the first equation gives:
x = 731 - y
Now we can replace that in the other equation to get:
(731 - y)*y = 2,908
Now we can solve this quadratic equation to find the value of y.
731*y - y^2 = 2,908
-y^2 + 731*y - 2,908 = 0
The solutions are:
y = (-731 ± √( 731^2 - 4*(-2,908)*(-1))/(-2)
y = (-731 ± 723)/-2
Now, y is an one digit number, then:
y = (-731 + 723)/-2 = 4
And x will be the 3 digit number:
x = 731 - x = 731 - 4 = 727
So the two numbers are 727 and 4
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Rotate trapezoid ABCD 90° clockwise around the origin. What are the coordinates of D’?
Responses
A (-4, 2)(-4, 2)
B (4, -2)(4, -2)
C (4, 0)(4, 0)
D (0, 4)(0, 4)
IF U ANSWER THE WRONG QUESTION THAT IS OFF TOPIC OR IF IT IS SPAM I WILL REPORT YOU IMMEDIATLEY AND DELETE YOUR ACCOUNT but to whoever does it correct will have brainliest and 100 points pls and thank you and WARNING TO SPAM!!!!! AND PLEASE HELP ME FAST THIS IS DUE TODAY PLS HELP FAST!!!!
Answer:
hey the answer is d(0,4)
Answer:
It is D
Step-by-step explanation:
I've done this problem before
0.09 is 1/10 as much as 0.90
The mathematical statement given as 0.09 is 1/10 as much as 0.90 is true
How to determine the true statement?The mathematical statement is given as:
0.09 is 1/10 as much as 0.90
To determine if the above statement is true, we start by representing the statement as an equation
So, we have
0.09 = 1/10 * 0.90
Express 1/10 as decimal
So, we have
0.09 = 0.10 * 0.90
Evaluate the product
So, we have
0.09 = 0.09
The above equation is true
Hence, the mathematical statement given as 0.09 is 1/10 as much as 0.90 is true
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Possible question
Determine if the following statement is true or false
Let [tex]\beta[/tex] be a real number. Consider the matrix [tex] \rm A = \begin{bmatrix} \beta &0&1 \\ 2 &1& - 2 \\ 3&1& - 2\end{bmatrix}[/tex] . If [tex] \rm A^7 - ( \beta - 1) {A}^{6} - \beta {A}^5[/tex] is a singular matrix, then the value of [tex]9\beta [/tex] is
Compute the characteristic polynomial of [tex]A[/tex].
[tex]p(\lambda) = \det(A - \lambda I) \\\\ ~~~~~~~~ = \begin{vmatrix} \beta - \lambda & 0 & 1 \\ 2 & 1 - \lambda & -2 \\ 3 & 1 & -2-\lambda \end{vmatrix} \\\\ ~~~~~~~~ = (\beta-\lambda)\begin{vmatrix}1-\lambda&-2\\1&-2-\lambda\end{vmatrix} + \begin{vmatrix}2&1-\lambda \\ 3 & 1 \end{vmatrix} \\\\ ~~~~~~~~ = -\lambda^3 + (\beta-1) \lambda^2 + (\beta + 3) \lambda - 1[/tex]
By the Cayley-Hamilton theorem,
[tex]p(A) = -A^3 + (\beta - 1) A^2 + (\beta + 3) A - I = 0[/tex]
Note that
[tex]A^7 - (\beta - 1) A^6 - \beta A^5 \\\\ ~~~~~~~~ = -(-A^3 + (\beta - 1) A^2 + \beta A) A^4 \\\\ ~~~~~~~~ = -(\underbrace{-A^3 + (\beta - 1) A^2 + (\beta + 3) A - I}_{p(A)=0} - 3A + I) A^4 \\\\ ~~~~~~~~ = (3A - I) A^4[/tex]
Recall that [tex]\det(AB) = \det(A) \det(B)[/tex]. Note that [tex]A[/tex] is not singular, and hence [tex]A^n[/tex] is not singular for any natural [tex]n[/tex].
[tex]\det(A) = \begin{vmatrix} \beta & 0 & 1 \\ 2 & 1 & -2 \\ 3 & 1 & -2 \end{vmatrix} \\\\ ~~~~~~~~ = \beta \begin{vmatrix}1&-2\\1&-2\end{vmatrix} + \begin{vmatrix}2&1\\3&1\end{vmatrix} \\\\ ~~~~~~~~ = -1 \neq 0[/tex]
Then [tex]3A-I[/tex] must be singular. So
[tex]\det(3A-I) = \begin{vmatrix} 3\beta - 1 & 0 & 3 \\ 6 & 2 & -6 \\ 9 & 3 & -7 \end{vmatrix} \\\\ ~~~~~~~~ = (3\beta-1) \begin{vmatrix}2&-6\\3&-7\end{vmatrix} + 3 \begin{vmatrix}6&2\\9&3\end{vmatrix} \\\\ ~~~~~~~~ = 4 (3\beta-1)[/tex]
[tex]4(3\beta-1) = 0 \implies \beta = \dfrac13 \implies 9\beta = \boxed{3}[/tex]
five and five hundred sixty -two thousandths in expanded form
When five and five hundred sixty -two thousandths is written in expanded form, the result is 5 + (5 x 0.1) + (6 x 0.01) + (2 x 0.001).
How to write in expanded form?When writing in expanded form, you should multiply each figure by the power of 10 that corresponds with their position.
Tens will be multiplied by 10
Tenths will be multiplied by 0.1
Hundredths will be multiplied by 0.01
Thousandths will be multiplied by 0.001
These numbers are then added to each other.
Five and Five hundred sixty -two thousandths is 5.562 so when written in expanded form it becomes:
5 + (5 x 0.1) + (6 x 0.01) + (2 x 0.001)
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If the sum of a number and six is tripled, the result is four less than twice the number. Find the number.
<1 and <2 form a linear pair. The measure of <2 is six more than twice the measure of <1. Find m<2.
Answer:
∠ 2 = 122°
Step-by-step explanation:
given ∠ 2 = 2 ∠ 1 + 6
a linear pair of angles sum to 180° , then
∠ 1 + ∠ 2 = 180° , that is
∠ 1 + 2∠ 1 + 6 = 180° ( subtract 6 from both sides )
3∠ 1 = 174° ( divide both sides by 3 )
∠ 1 = 58° , then
∠ 2 = 180° - 58° = 122°
Find the length of BC if B is the midpoint of AC
Answer:
x + 7
Step-by-step explanation:
5(2x + 2) - 3(3x -1)
10x + 10 - 9x - 3
x + 7
Suppose a relationship is proportional and the point (4,10) lies on the graph of the proportional relationship. Name another point, other than (0,0), that lies on the graph of the line. Please help me.
Another point on function assuming it as direct and linear proportion with the independent variable will be (1,5/2).
How to form an equation?Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.
Let,s suppose the given graph is a direct relationship and linear as well.
Now,
y ∝ x
By removing proportion,
y = kx
Since (4,10) lies on the graph thus it must satisfy the equation.
So,
y = kx
10 =k (4)
k = 10/4 = 5/2
So the equation is y = (5/2)x
Now corresponding to x = 1 ⇒ y = 5/2
So point (1,5/2) lies on the graph.
Hence "Another point on function assuming it as direct and linear proportion with the independent variable will be (1,5/2)".
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6. The amount of carbon-14 left / years after the death of an organism is given by
2(1) = Que-0.0001221
where Qo is the amount left at the time of death. For this problem, assume Qo=
6.0 x 1010 carbon-14 atoms.
(a) How much is left after 50,000 years? What fraction of the original amount is this?
(b) How much is left after 100,000 years? What fraction of the original amount is
this?
(c) What is the half-life of carbon-14?
(d) About how many half-lives will occur in 50,000 years? Roughly what fraction will
be left? How does this compare to your answer in part (a)?
The half-life of carbon-14 is 5,730 years. Assuming you start with 100% of carbon-14, what is the expression for the percent, P(t), of carbon-14 that remains in an organism that is t years old and what is the percent of carbon-14 remaining (rounded to the nearest whole percent) in an organism estimated to be 20,000 years old
Carbon-14, C-14, 14
C or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons. Its presence in organic materials is the basis of the radiocarbon dating method pioneered by Willard Libby and colleagues (1949) to date archaeological, geological and hydrogeological samples. Carbon-14 was discovered on February 27, 1940, by Martin Kamen and Sam Ruben at the University of California Radiation Laboratory in Berkeley, California. Its existence had been suggested by Franz Kurie in 1934.[2]
There are also trace amounts of the unstable radioisotope carbon-14 (14C) on Earth. Carbon-14 has a relatively short half-life of 5,730 years, meaning that the fraction of carbfon-14 in a sample is halved over the course of 5,730 years due to radioactive decay to nitrogen-14.
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Given that your allotted budget for a week in $500, find the amount that you saved from your budget.
If my allotted budget for a week in $500, and considering I spend $400 dollars as my complete expenses up till the end of the week, (since no information about my expenses is the question statement), the amount that I will be able save from my budget is $100, calculated using basic subtraction.
As per the question statement, my allotted budget for a week in $500 and there is no further information about my expenses for the week. Hence, Let us consider that I had to spend $400 dollars as my complete expenses for the week.
We are required to calculate the amount that I will be able save from my budget.
To solve this question, we simply have to subtract my total week's expenses from my weekly budget, i.e., [tex][(500-400)=100][/tex].
Hence, I will be able to save upto $100 from my weekly budget.
Subtraction: In Mathematics, subtraction is one of the basic operations, where we take a matrix, vector, or other quantity away from another, under specific rules to obtain their difference.To learn more about Subtraction, click on the link below.
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Please answer 1 and 2
The probability of P(A and B) based on the information given will be E. None of the above.
How to calculate the probability?It should be noted that probability is used to illustrate the likelihood that something will occur.
In this case, P(A) = 0.1 and P(B) = 0.4. Therefore, the probability of P(A and B) will be
= P(A) + P(B)
= 0.1 + 0.4
= 0.5
Sine the value of 0.5 isn't given, the correct option is E.
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Find the expected value E(X) of the following data. Round your answer to one decimal place. x −5 −4 −3 −2 −1 P(X=x) 0.1 0.3 0.1 0.2 0.3
Based on the values in the table of values, the expected value of the data is -3.3
How to determine the expected value of the data?The dataset is given as
x −5 −4 −3 −2 −1
P(X=x) 0.1 0.3 0.1 0.2 0.3
The expected value of the dataset is calculated as
E(x) = ∑x * P(x)
Substitute the known values in the above equation
So, we have
E(x) = (-5 * 0.1) + (-4 * 0.3) + (-3 * 0.3) + (-2 * 0.2) +(-1 * 0.3)
Evaluate the products in the above equation
So, we have
E(x) = -0.5 - 1.2 - 0.9 - 0.4 - 0.3
Evaluate the difference in the above equation
So, we have
E(x) = -3.3
Hence, the expected value of the data is -3.3
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Please please please please help me
Answer:
-6 = 1
-4 = 2
0 = 4
2 = 5
8 = 8
Solve the equation.
3|10x - 4| = 78
Answer:
x(down 1)=-11/5, x(down 2) =3
Step-by-step explanation:
1. In the last few months, local news channels have featured stories about price increases in
Cincinnati. The monthly cost of cable TV for some families increased from $75 to
(a) $ 79.15. The average cost of a dozen eggs increased from (b) $ 1.70 to
$2.37.
(a) Calculate the absolute change in the monthly cost of
cable TV. Round to the nearest cent.
(3)
(b) Calculate the relative change in the monthly cost of
cable TV. Round to one decimal place.
(4)
(c) Calculate the absolute change in the cost of a dozen (d) Calculate the relative change in the cost of a dozen
eggs. Round to the nearest cent.
eggs. Round to one decimal place.
(3)
(4)
(e) A cable customer feels that the monthly cost of cable TV increased the most arog
Using the concept of absolute and relative change, it is found that:
a) The absolute change in the monthly cost of cable TV is of $4.15.
b) The relative change in the monthly cost of cable TV is of 5.53%.
c) The absolute change in the monthly cost of eggs is of $0.67.
d) The relative change in the monthly cost of eggs is of 39.41%.
e) Due to the higher relative change, the cost of the eggs increased the most.
What is absolute and relative change?Between two amounts, the absolute change is given by the difference between the two amounts.The relative change is given by the absolute change divided by the initial value.Hence the absolute changes are given as follows:
Cable TV: 79.15 - 75 = $4.15.Eggs: 2.37 - 1.70 = $0.67.The relative changes are given as follows:
4.15/75 = 0.0553 = 5.53%.0.67/1.70 = 0.3941 = 39.41%.Hence, for item e:
Due to the higher relative change, the cost of the eggs increased the most.
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Solve by substitution.
(x - 4y = 20
2x + 5y = 1
([? ], [ ])
Answer:
x, y =8 -3
Step-by-step explanation:
System of Linear Equations entered :
[1] x - 4y = 20
[2] 2x + 5y = 1
Graphic Representation of the Equations :
-4y + x = 20 5y + 2x = 1
Solve by Substitution :
// Solve equation [1] for the variable x
[1] x = 4y + 20
// Plug this in for variable x in equation [2]
[2] 2•(4y+20) + 5y = 1
[2] 13y = -39
// Solve equation [2] for the variable y
[2] 13y = - 39
[2] y = - 3
// By now we know this much :
x = 4y+20
y = -3
// Use the y value to solve for x
x = 4(-3)+20 = 8
Solution :
{x,y} = {8,-3}