Answer:
The ten millions place
Step-by-step explanation:
because the three after it is the unit million then the 8 being before the 3 would definitely be it's tens
For what values of y does 125=(1/25)^y-1
[tex]125 = \frac{1}{125} {}^{y - 1} \\ 125 = ( {5}^{ - 2} ) {}^{y - 1} \\ \\ {5}^{3} = {5}^{2 - 2y} \\ 3 = 2 - 2y \\ - 0.5 = y[/tex]
Answer:
The answer is [tex]y=-0.5[/tex]
Step-by-step explanation:
In order to determine the "y" value, we have to change the way of we see the equation.
In these cases, when the variable is in the exponent and it is possible to make two exponents in each side of the equation, we have to equal bases and then we have to make other equation between the exponents of both sides.
So,
[tex]125=(\frac{1}{25})^y^-^1\\(5)^3=(5^-^2)^y^-^1\\(5)^3=(5)^-^2^*^y^+^2\\[/tex]
Then, we have to make an equation between the exponents of both sides:
[tex]3=-2*y+2\\2*y=2-3\\2*y=-1\\y=\frac{-1}{2}=-0.5\\ y=-0.5[/tex]
Finally, the value of "y" is -0.5
select the two values of x that are roots of this equation 2x^2 + 7x + 6=0
A. X=-3
B. X=-3/2
C. X=-4
D. X=-2
Answer:
x = -2 or x = -3/2 thus B. & D. are the answer
Step-by-step explanation:
Solve for x:
2 x^2 + 7 x + 6 = 0
Hint: | Factor the left hand side.
The left hand side factors into a product with two terms:
(x + 2) (2 x + 3) = 0
Hint: | Find the roots of each term in the product separately.
Split into two equations:
x + 2 = 0 or 2 x + 3 = 0
Hint: | Look at the first equation: Solve for x.
Subtract 2 from both sides:
x = -2 or 2 x + 3 = 0
Hint: | Look at the second equation: Isolate terms with x to the left hand side.
Subtract 3 from both sides:
x = -2 or 2 x = -3
Hint: | Solve for x.
Divide both sides by 2:
Answer: x = -2 or x = -3/2
Answer:
B and D
Step-by-step explanation:
Given
2x² + 7x + 6 = 0
To factorise the quadratic
Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.
product = 2 × 6 = 12 and sum = + 7
The factors are + 4 and + 3
Use these factors to split the x- term
2x² + 4x + 3x + 6 = 0 ( factor the first/second and third/fourth terms )
2x(x + 2) + 3(x + 2) = 0 ← factor out (x + 2) from each term
(x + 2)(2x + 3) = 0
Equate each factor to zero and solve for x
x + 2 = 0 → x = - 2 → D
2x + 3 = 0 ⇒ 2x = - 3 ⇒ x = - [tex]\frac{3}{2}[/tex] → B
the first quartile of a data set is 72, and the third quartile is 92. Which of these values in the data set is an outlier ?
A. 61
B. 121
C. 101
D. 41
Answer: Option D
D. 41
Step-by-step explanation:
A value [tex]x_i[/tex] is considered an outlier if
[tex]x_i> Q_3 + 1.5IQR[/tex]
or
[tex]x_i <Q_1 - 1.5IQR[/tex]
Where
[tex]Q_3[/tex] is the third quartile
[tex]Q_1[/tex] is the first quartile
IQR is the interquartile range.
[tex]IQR = Q_3-Q_1[/tex]
In this case:
[tex]Q_3=92\\Q_1=72[/tex]
So
[tex]IQR = 92-72 =20[/tex]
[tex]Q_3 + 1.5IQR = 92 + 1.5*20 = 122[/tex]
[tex]Q_1 - 1.5IQR=72-1.5*20=42[/tex]
Then the outlier values will be all those greater than 122 or less than 42
Therefore the answer is the option D.
Help me pleasee , timed
Answer:
The second alternative is correct
Step-by-step explanation:
We have been given the expression;
[tex](x^{27}y)^{\frac{1}{3}}[/tex]
The above expression can be re-written as;
[tex](x^{27})^{\frac{1}{3}}*y^{\frac{1}{3}}\\\\(x^{27})^{\frac{1}{3}}=x^{27*\frac{1}{3}}=x^{9}[/tex]
On the other hand;
[tex]y^{\frac{1}{3}}=\sqrt[3]{y}[/tex]
Therefore, we have;
[tex]x^{9}\sqrt[3]{y}[/tex]
Answer:
Option 2: [tex]x^{9}(\sqrt[3]{y})[/tex]
Step-by-step explanation:
Given
[tex](x^{27}y )^{\frac{1}{3} }[/tex]
The exponent power will be multiplied with the powers inside the bracket
So,
[tex](x^{27 * \frac{1}{3}} y^{\frac{1}{3}})[/tex]
[tex]= x^{\frac{27}{3}} y^{\frac{1}{3} }[/tex]
[tex]= x^{9} y^{\frac{1}{3}}[/tex]
Writing in radical form will give us:
[tex]x^{9}(\sqrt[3]{y})[/tex]
So,
Option 2 is the correct answer ..
which is the greatest common factor of 24 and 60
Aloha! My name is Zalgo and I am here to be of assistance to you today. The GCF (Greatest Common Factor) of 14 and 60 would be 12. To the GCF of 24, you need to multiply 2^3 by 3. In order to get the GCF of 60, you need to multiply 2^2 by 3 times 5.
I hope that this info helps! :P
"Stay Brainly and stay proud!" - Zalgo
(By the way, do you think you could mark me as Brainliest? I'd greatly appreciate it! Mahalo! XT)
The greatest common factor of 24 and 60 is 12.
What is the greatest common factor of 24 and 60?To get the greatest common factor, we will list the factors of each number and find the largest one that they have in common.
The factors of 24 are:
1, 2, 3, 4, 6, 8, 12, and 24.
The factors of 60 are:
1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60.
The largest factor that 24 and 60 have in common is 12.
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1. Two lines, A and B, are represented by the following equations: Line A: 2x + y = 6 Line B: x + y = 4 Which statement is true about the solution to the set of equations? (4 points) It is (2, 2). There are infinitely many solutions. It is (4, 0). There is no solution.
Answer:
It is (2, 2).
Step-by-step explanation:
Area of circle with radius of 2
Answer:
[tex]4\pi[/tex] or 12.56
Step-by-step explanation:
[tex]\pi r^{2}[/tex] is the formula to find the area of a circle.
if we plug '2' in... [tex]\pi2^{2}[/tex]
which equals to [tex]4\pi[/tex]
if we multiply 4 with pi, it equals to 12.56
Answer:
Area of circle = 12.56 sq. units
Step-by-step explanation:
radius = 2
Area of circle = π r² sq. units
= 3.14 * 2 * 2 = 12.56 sq. units
In a singing competition, there are
150 participants. At the end of each
round, 40% of the participants are
eliminated. How many participants
are left after n rounds?
Answer:
150(.40)^n is your equation
Step-by-step explanation:
Answer:
[tex]=150\cdot{0.4^n}[/tex]
Step-by-step explanation:
Let n be the number of rounds. Lets look at n=1 which is round one. Therefore if 40% of the contestants are eliminated then we can write an expression of the number of contestants eliminated:
[tex]=150\cdot{0.4}[/tex]
For round two, n=2:
[tex]=150\cdot{0.4)\cdot{0.4}=150\cdot{0.4^2}[/tex]
Therefore for the n number of rounds:
[tex]=150\cdot{0.4^n}[/tex]
Witch table shows a proportional relationship between a and b
Answer:
Option B is correct.
Step-by-step explanation:
A proportional relationship is a relationship between two variables where the ratio between the two variables is always the same.
Divide b/a for each option, the option having same ratio for the complete tables have proportional relationship
a)
9/3 = 3
12/4 = 3
20/5 = 4
b)
25/20 = 5/4
30/24 = 5/4
40/32 = 5/4
c)
12/4 = 3
15/5 = 3
24/6 = 4
d)
4/3 = 4/3
9/6 = 3/2
12/16 = 3/4
So, Option B is correct.
Answer: Second Option
Step-by-step explanation:
It is said that two variables a and b are propocionales if when b increases then a increases in a constant rate.
That is, a and b are proportional if the quotient between b and a is always equal to a constant k.
[tex]\frac{b}{a}=k[/tex]
To know which of the tables shows a proportional relationship identify in which of the tables the division of b between a always is constant
You can verify that the table where the quotient of b enters a is always constant is in the second table
[tex]\frac{b}{a}=\frac{5}{4}[/tex]
find the area of the smaller sector (please help me(
Answer:
27
Step-by-step explanation:
Anthony is making A collage for his art class my picking Shapes randomly. He has five squares, two triangles, two ovals, and four circles. find p( circle is chosen first)
I am not sure but I think the probability of a circle being chosen first is 4/13
because 13 is the amount of shapes in total, and 4 is the amount of circles. I hope you found this helpful.
Answer:
The answer is [tex]\frac{4}{13}[/tex].
Step-by-step explanation:
There are five squares, two triangles, two ovals, and four circles.
So, total shapes are = [tex]5+2+2+4=13[/tex]
The probability that the first chosen shape will be a circle is given by :
[tex]\frac{possible outcomes}{total number of outcomes}[/tex]
= [tex]\frac{4}{13}[/tex]
Note: 4 because any 1 out of 4 can be selected.
Vertical? Obtuse? Straight or acute
Answer:
D. Acute
Step-by-step explanation:
This is an acute angle because the angle is less then 90 degrees.
<FOA is an Acute angle (D).
How I know...
Acute angles are angles are below 90 degrees (aka LESS then a right angle)
Hope this helped!
~Just a girl in love with Shawn Mendes
(29 PTS) Explain how the Quotient of Powers Property was used to simplify this expression. 3^4/9 = 3^2
A/ By simplifying 9 to 32 to make both powers base three and adding the exponents
B. By simplifying 9 to 32 to make both powers base three and subtracting the exponents
C. By finding the quotient of the bases to be 1/3 and simplifying the expression
D. By finding the quotient of the bases to be 1/3 and cancelling common factors
Answer:
B. By simplifying 9 to [tex]3^{2}[/tex] to make both powers base three and subtracting the exponents
Step-by-step explanation:
When you have a division the quotient of powers property states that the exponents should be substracted, and by simplifying 9 to [tex]3^{2}[/tex] you end up with an equation like this:
[tex]\frac{3^{4} }{3^{2} }[/tex]=[tex]3^{2}[/tex]
Then you just have to substract the exponent from the denominator from the numerator´s exponent, which would be:
4-2=2
and the resultant equation would be:
[tex]3^{2} =3^{2}[/tex]
The Quotient of Powers Property allows you to subtract exponents when dividing expressions with the same base. The expression 3^4/9 simplifies to 3^2 because 9 can be expressed as 3^2, therefore their exponents are subtracted (4-2=2).
Explanation:In this question, the Quotient of Powers Property is used. This property states that to divide where the base remains the same, you subtract the exponents. In the expression 3^4/9 = 3^2, we know that 9 can be expressed as 3^2.
Therefore, it becomes 3^4/3^2. According to the Quotient of Powers Property, we subtract the exponent of the denominator from the exponent of the numerator (4-2=2). Hence the expression simplifies to 3^2. The correct choice is B: By simplifying 9 to 3^2 to make both powers base three and subtracting the exponents.
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The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of t
product when it is sold at a unit price of x dollars.
-0.5x2 + 221 – 224
What is represented by the zero(s) of the expression?
A.
the unit price(s) when the profit is equal to 0
B.
the unit price(s) when profit is greatest
c.
the profit when the unit price is equal to 0
OD.
the profit when the unit price is greatest
Reset
Next
Answer:
A. The answer is our unit prices when our profit is 0
Step-by-step explanation:
The zeros are the x-intercepts, when the curve passes through the x-axis.
I'm going to call our function P
P(x)=-0.5x^2+221x-224 is equal to 0 (our profit is equal to 0) when x (the unit price is such and such)
The answer is our unit prices when our profit is 0
The expression represents the monthly profit from sales of a product at a given unit price. The zero(s) of the expression represent the unit price(s) when the profit is equal to 0.
Explanation:The expression -0.5x^2 + 221x - 224 represents the monthly profit, in thousands of dollars, from sales of a product when it is sold at a unit price of x dollars.
The zero(s) of the expression are the unit price(s) when the profit is equal to 0. To find the zero(s), we need to set the expression equal to 0 and solve for x.
-0.5x^2 + 221x - 224 = 0We can solve this quadratic equation by factoring, completing the square, or using the quadratic formula.The zero(s) of the expression will give us the unit price(s) at which the profit is equal to 0.Learn more about Quadratic equations here:https://brainly.com/question/30098550
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What is the midpoint of (3.2,2.5) and (1,6,-4.5)
Answer:
(2.4 , -1)
Step-by-step explanation:
Too many commas in second ordered pair but this is how I will interpret the question:
Find the midpoint of (3.2,2.5) and (1.6,-4.5)
So just average x's : (3.2+1.6)/2 =4.8/2=2.4
And
just average y's : (2.5+-4.5)/2=-2/2=-1
The midpoint is (average x's , average y's)
Your midpoint is (2.4 , -1 )
answer (2.4 , -1)
6. The ratio of red ribbons to green ribbons is 4 to 6. If
there are a total of 30 red ribbons, then how many green
ribbons are there?
Answer:
45
Step-by-step explanation:
The 4 part of the ratio represents 30 red ribbons
Divide 30 by 4 to find the value of one part of the ratio
30 ÷ 4 = 7.5, hence
6 × 7.5 = 45 ← number of green ribbons
in a concert hall, 250 seats out of 300 were occupied. to the nearest thousand, what part of the hall was not occupied?
Answer: 0.167 is the part of the hall that was not occupied. Or 16.7 %
Step-by-step explanation:
300-250=50 this is the number of seats not occupied since 250 is the amount occupied.
So, 50/300=5/30 which can be converted to a number which is 0.1666666667. It says to round to the thousandths place, which is the 3rd number. That is 0.167
Answer:
0.167 part of the hall was not occupied
Step-by-step explanation:
Given :In a concert hall, 250 seats out of 300 were occupied.
To Find :To the nearest thousand, what part of the hall was not occupied?
Solution:
Total seats = 300
Occupied seats = 250
Unoccupied seats = 300-250 = 50
So, The part of the hall was not occupied = [tex]\frac{\text{unoccupied seats}}{\text{total seats}}[/tex]
= [tex]\frac{50}{300}[/tex]
= [tex]0.167[/tex]
Hence 0.167 part of the hall was not occupied
Please answer now and please explain thank you
Hello There!
The answer would be the first one.
This is saying that Tom can not save exactly 50.25 but he must save more than that
The range of the following relation R {(3, -5), (1, 2), (-1, -4), (-1, 2)} is (1 point)
{-4, -5, 2, 2)
{-1, 1, 3)
{-1,-1,1,3)
{-5, -4,2)
Answer:
{-5,-4,2}
Step-by-step explanation:
The domain is the inputs and the range is the outputs
The outputs are the y values
{ -5,2,-4,2}
We only list them once and in order from smallest to largest
{-5,-4,2}
PLEASE HELP ME! 8 POINTS!
Answer:
720/1681
Step-by-step explanation:
First quadrant so everything is positive for a trig function of just the angle. I would suggest just drawing a right triangle using tan(x)=40/9 (opp/adj). Find the hypotenuse which is sqrt(40^2+9^2)=sqrt(1600+81)=sqrt(1681)=41. So sin(x)=40/41 and cos(x)=9/41.
Therefore sin(2x)=2sin(x)cos(x)=2(40/41)(9/41)=720/1681
what is the distance between the points (2 -3) and (-6 4) on the coordinate plane
Answer:
√113
or
10.6301458127
Step-by-step explanation:
Plug the coordinated into this equation and make sure you match up the corrdinates in the correct order
d = √(x2 - x1)^2 + (y2 - y1)^2
The number next to the number does NOT mean multiply it mean like this
(x2, y2) and (x1, y1) so you would plug them in like this:
d = √(-6 - 2)^2 + (4 - (-3))^2
d = √(-8)^2 + (7)^2
d = √(64 + 49
d = √113
or 10.6301458127
Answer with Step-by-step explanation:
The distance(d) between the points (a,b) and (c,d) is given by:
[tex]d=\sqrt{(c-a)^2+(d-b)^2}[/tex]
Here, we have to find distance between (2,-3) and (-6,4)
(a,b)=(2,-3) and (c,d)=(-6,4)
[tex]d=\sqrt{(-6-2)^2+(4-(-3))^2}[/tex]
[tex]d=\sqrt{8^2+7^2}[/tex]
[tex]d=\sqrt{64+49}[/tex]
[tex]d=\sqrt{113}[/tex]
Hence, the distance between the points (2 -3) and (-6 4) on the coordinate plane is:
[tex]\sqrt{113}[/tex]
What is the simplified form of the following expression?
Oo oo
Answer:
[tex]\frac{\sqrt[3]{100x}}{5}[/tex]
Step-by-step explanation:
we have
[tex]\sqrt[3]{\frac{4x}{5}}[/tex]
Multiply inside by [tex]\frac{25}{25}[/tex]
so
[tex]\sqrt[3]{\frac{4x*25}{5*25}}[/tex]
[tex]\sqrt[3]{\frac{100x}{125}}[/tex]
Remember that
[tex]\sqrt[3]{125}=5[/tex]
substitute
[tex]\sqrt[3]{\frac{100x}{125}}=\frac{\sqrt[3]{100x}}{\sqrt[3]{125}}=\frac{\sqrt[3]{100x}}{5}[/tex]
Which expression is equivalent to (x + 2)(3x – 3)?
Multiply the two brackets together
(x+2)(3x-3)
x(3x)*(-3)(x)+2(3x)(2*-3)
3x^2-3x+6x-6
3x^2+3x-6
Answer is : 3x^2+3x-6
Answer
A. x5y3
Step-by-step explanation:
HELLLLLLPPPPPP!!!!!!!!!
Answer:
A
Step-by-step explanation:
(f - g)(x) = f(x) - g(x)
f(x) - g(x)
= 3x² - 2x + 4 - (5x² + 6x - 8) ← distribute parenthesis by - 1
= 3x² - 2x + 4 - 5x² - 6x + 8 ← collect like terms
= - 2x² - 8x + 12 → A
8. Let f(x) = x 2 + 3x − 12 what is the average rate of change from x = 3 and x = 5?
[tex]\bf slope = m = \cfrac{rise}{run} \implies \cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby \begin{array}{llll} average~rate\\ of~change \end{array}\\\\[-0.35em] \rule{34em}{0.25pt}\\\\ f(x)= x^2+3x-12\qquad \begin{cases} x_1=3\\ x_2=5 \end{cases}\implies \cfrac{f(5)-f(3)}{5-3} \\\\\\ \cfrac{[(5)^2+3(5)-12]~~-~~[(3)^2+3(3)-12]}{2}\implies \cfrac{[25+3]~~-~~[9-3]}{2} \\\\\\ \cfrac{28-6}{2}\implies \cfrac{22}{2}\implies 11[/tex]
Simplify this expression HELP ASAP
Answer:
B
Step-by-step explanation:
Noting the following rule of radicals
[tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] = [tex]\sqrt{ab}[/tex]
Given
([tex]\sqrt{2}[/tex] + [tex]\sqrt{3}[/tex])( [tex]\sqrt{5}[/tex] - [tex]\sqrt{7}[/tex] )
Each term in the second factor is multiplied by each term in the first factor
= [tex]\sqrt{2}[/tex]([tex]\sqrt{5}[/tex] - [tex]\sqrt{7}[/tex]) + [tex]\sqrt{3}[/tex]([tex]\sqrt{5}[/tex] - [tex]\sqrt{7}[/tex]) ← distribute parenthesis
= [tex]\sqrt{10}[/tex] - [tex]\sqrt{14}[/tex] + [tex]\sqrt{15}[/tex] - [tex]\sqrt{21}[/tex]
what is −7−4p−(−5) ??
Answer:
Step-by-step explanation:
−7−4p+5
−4p+(−7+5)
Ans
−4p−2
your answer is: -4p - 2
Explanation:
first, ignore the -4p for now. do the small equation without the variable. SO, we would do 7 - 5 = 2.
there aren't any addition symbols being used in the equation and there aren't any other numbers with the p variable. this means that the -4p will stay the same. so we would end up with -4p - 2
(this isn't the normal way of solving this, but I did my own way and got the same answer)
What is the answer to 4 • 4.
Answer:
16
Step-by-step explanation:
4 groups of 4 is 16:
[tex]\left\begin{array}{cccc}*&*&*&*\*&*&*&*&*\*&*&*&*&*\*&*&*&*&*\end{array}\right[/tex]
1. You have a piece of land where you want to grow a garden. You only
have 20 yards of fencing to surround the garden. Work through the steps
below to figure out the maximum space you can create to grow plants.
A) you decide to make the width 3 yards.
Length: _____ yards
Area: _____ square yards
20points! What is the percent of change from 134 to 106? Round to the nearest percent!
Answer:
Step-by-step explanation:
it's -2
The percentage change of 134 to 106 will be -20.89% .
Given ,
Number changed from 134 to 106 .
Now,
Here initially the number was = 134
After reduction the number was = 106
Percentage change = final - initial / initial * 100
Final number = 106
Initial number = 134
so,
Percentage change = 106 -134/134 * 100
Percentage change = -28/134 *100
Percentage change = -20.89%
Thus the percentage change is -20 .89% and the negative sign shows the declining nature of number .
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