An expression is defined as a set of numbers, variables, and mathematical operations. The correct option is C.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The expression that is equivalent to -(1/6)y + 1/3 is,
-(1/6)y + 1/3
Take 1/6 common from both first and the last term,
1/6 (-y + 2)
Hence, the correct option is C.
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are the two figures similar? if so give the similarity ratio of the smaller figure to the larger figure. explain why or why not
Answer: no they are not similar
Step-by-step explanation: if you find the ratio of sides 85:17, it is 5
The ratio of sides 30 to 6 is also 5
However, the ratio of sides 54 to 9 is 6 so it is not similar
The ratio has to be the same for all sides to be similar
The price of an item has been reduced by $3.49. The new sale price is $84.42. What was the original price?
$
X
3
Margo borrows $1500, agreeing to pay it back with 3% annual interest after 18 months. How much interest will she pay?
Answer:
67.5
Step-by-step explanation:
I'm assuming this is simple interest.
1500x0.03x1.5=67.5
Chris is mixing 2 different types of fruit juice together for a summer drink. The two types of juices he is using is one that is 30% strawberry concentrate and the other is 55% lemon concentrate. If he wants 2 L that is 40% concentrate of the fruit juices, how much of each should be used to create the drink?
The total amount of the drink is 2L. Strawberry concentrate will be X amount, and lemon concentrate will be the other part which is 2 - X.
---Note that we can only use one variable because there is only one equation to be set up here. That's why "the other part" is simply the total amount minus the strawberry amount.
0.4(2) = 0.3(x) + 0.55(2 - x)
---0.4, 0.3 and 0.55 are the decimal equivalents of 40%, 30% and 55%
0.8 = 0.3x + 1.1 - 0.55x
0.8 = -0.25x + 1.1
-0.3 = -0.25x
x = 1.2
Therefore, Chris should use 1.2L of strawberry concentrate and 0.8L of lemon concentrate to get 2L of a 40% concentrate mixture.
Hope this helps!
What is the value of g(f(x)) when x=-2 if f(x)=x3
Answer:
The answer would be A: -15
Solve-2x-8> 3x + 12.
A. x < -4
OB. x>-4
C. x > -3
D. x < -3
Answer:
x < -4
Step-by-step explanation:
add 8 to both sides
Simplify
Subtract 3x from both sides
Simplify, again
Multiply both sides by -1 ( reverse inequality)
Simplify, again
Divide both sides by 5
And vwola x < -4
HOPE THAT HELPS! :)
What is addition and subtraction
[tex]\huge\text{Hey there!}[/tex]
[tex]\huge\textsf{What is addition \& subtraction?}[/tex]
[tex]\huge\textbf{What is addition?}[/tex]
[tex]\bullet\large\textbf{ Well, \underline{addition} simply means when you're ADDING}\\\large\textbf{2 or more numbers from each other to get the result of}\\\large\textbf{a number.}[/tex]
[tex]\huge\textbf{Random notes}[/tex]
[tex]\star\large\textbf{ Usually, you start working with addition when you're in}\\\large\textbf{pre-kindergarten (pre-k also known as head-start)}\\\\\star\large\textbf{ When, you're adding you are going upward.}\\\\\star\large\textbf{ Addition sometimes come after you learn how to count}\\\large\textbf{the basic numbers and so forth because adding never}\\\large\textbf{ends if you really think about.}[/tex]
[tex]\huge\textbf{Example:}[/tex]
[tex]\heartsuit\large\textbf{ 2 \boxed{\bf +} 5 = 7}\\\\\\\heartsuit\large\textbf{ You got the result of 7 because you started at 2 \& went}\\\larg\textbf{up 5 spaces to your right on your number and you landed}\\\large\textbf{on 7.}[/tex]
[tex]\huge\textbf{What is subtraction?}[/tex]
[tex]\bullet\large\textbf{ Well, subtraction simply means you're taking away. Often}\\\large\textbf{people call it take aways.}[/tex]
[tex]\huge\textbf{Random notes:}[/tex]
[tex]\star\large\textbf{ Usually, you start working with subtraction when you're}\\\large\textbf{in pre-kindergarten (pre-k also known as headstart)}\\\\\star\large\textbf{When you're subtracting you are doing downward.}\\\\\star\large\textbf{You focus more on subtraction when you're counting}\\\large\textbf{backwards.}[/tex]
[tex]\huge\textbf{Example:}[/tex]
[tex]\heartsuit\large\textbf{ 7 \boxed{\bf -} 5 = 2 }\\\\\\\heartsuit\large\textbf{ 7 \boxed{\bf -} 2 = 5}\\\\\\\heartsuit\large\textbf{ For equation \#1. you begin at 7 and go BACK 5 spaces}\\\large\textbf{and you should have landed on 2.}\\\\\\\heartsuit\large\textbf{ For equation \#2. you begin at 7 \& go BACK 2 spaces}\\\large\textbf{and you should have landed on 5.}[/tex]
[tex]\huge\textsf{KEEP IN MIND:}[/tex]
[tex]\circ\large\textsf{ Addition OPPOSITE is subtraction \& subtraction OPPOSITE is}\\\large\textsf{addition.}[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitirite1040:)}[/tex]
if f(x)=4x-x^2 find f(x+h)-f(x+h)/2h
Answer:
0
Step-by-step explanation:
same numerator for that it is zero
Answer: A
Step-by-step explanation:
Factor by Grouping.
25x^2-20x-12
Answer:
ac = -300-20 = -30 +10(5x +2)(5x +(-6))Step-by-step explanation:
The sequence of required answers provides a step-by-step solution to the problem.
Factors of acIn the given trinomial, we identify the coefficients as ...
ax² +bx +c = 25x² -20x -12 ⇒ a=25; b=-20; c=-12
Then the ac product is ...
ac = (25)(-12) = -300
The factor pairs that make this product can be listed as ...
-300 = (-300)(1) = (-150)(2) = (-100)(3) = (-75)(4) = (-60)(5) = (-50)(6) = (-30)(10) = (-25)(12) = (-20)(15) . . . . (only pairs with a negative sum are listed)
The sums of these pairs are -299, -148, -97, -71, -55, -44, -20, -13, -5.
The factors of the ac product that add to -20 are -30 and 10.
Factor by groupingThese factors are used to rewrite the -20x term as a sum.
25x² -20x -12 = 25x² -30x +10x -12
Grouping these terms in pairs, we can identify common factors:
= (25x² -30x) +(10x -12)
= 5x(5x -6) +2(5x -6)
= (5x +2)(5x +(-6))
To measure voltage (V), the formula V = √P. R is used. In this formula, P represents power measured in watts and
R represents resistance measured in ohms. What is the resistance (to the nearest ohm) if the volts are 130 and power is
1200 watts?
The resistance measured in ohms according to the given task is; 3.75 ohms.
What is the resistance in the given set-up?Since it follows that the three quantities are related by the formula; V = √P. R can be used to estimate the required resistance.
Hence, when V = 130 and P = 1200; we have;
130 = √1200 × R
R = 3.75 ohm
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A horticulture class is filling planters with soil. Each planter is to be filled full.
How many cubic feet of soil will be needed to fill 15 planters measuring 2 feet by
3 feet by 1 foot?
O a.) 55 cu ft
Ob.) 45 cu ft
Oc.) 35 cu ft
O d.) 48 cu ft
Answer:
90 ft³
Step-by-step explanation:
V = LWH
V = (2 ft)(3 ft)(1 ft)
V = 6 ft³
Each planter has a volume of 6 ft³.
total volume = 15 × 6 ft³ = 90 ft³
A blue line with 5 orange tick marks then one red tick mark then 4 orange tick marks. the number zero is above the red tick mark. calculate the final displacement from 0 if an object first moves 3 cm to the left and then 5 cm to the right. the final displacement is cm to the .
The final displacement is 2cm in the right.
Given that the object begins from 0 and moves 3 cm towards the left side and then, 5 cm towards the right side.
The displacement is known as shortest distance between the initial and final positions.
Let the x-axis be the positive, +ve, and on the right side and negative -ve on the left side.
Thus, displacement would be:
D= 0 -3 +5
D= 2 cm
This implies that the object displaces 2cm towards the right side
Hence, the final displacement when object moves from 0 and 3 cm to the left and then 5 cm to the right is 2cm in the right side.
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Answer:
2cm to the right
Step-by-step explanation:
i got this right hope it helps :)
Draw a vertical line through a normal distribution for
each of the following z-score locations. Determine
whether the tail is on the right or left side of the line
and find the proportion in the tail.
z= 1.00
z= 0.50
z= -1.25
z= -0.40
The proportion in the tail with regards to the z scores will be:
z = 1.00 = 0.1587z = 0.50 = 0.3085z = -1.25 = 0.1056z = -0.40 = 0.3446How to calculate the values?a. z= 1.00
P(z > 1.00) = 1 - P(Z < 1.00)
= 1 - 0.8413
= 0.1587
The tail will be on the right side.
The proportion of the tail will be 0.1587.
b. z = 0.50
P(z > 0.50) = 1 - P(Z < 0.50)
= 1 - 0.6915
= 0.3085
The tail will be on the right side.
The proportion of the tail will be 0.3085
c. z= -1.25
P(z < -1.25)
= 0.1056
The tail will be on the left side.
The proportion of the tail will be 0.1056.
d. z= -0.40
P(z < -0.40)
= 0.3446
The tail will be on the left side.
The proportion of the tail will be 0.3446.
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Solve the quadratic equation by using the quadratic formula. If the solutions are not real, enter NA.
2x2−7x+1=0
Enter the exact answers.
The field below accepts a list of numbers or formulas separated by semicolons (e.g. 2;4;6 or x+1;x−1 ). The order of the list does not matter.
Enclose numerators and denominators in parentheses. Remember that (a−b)/1+n is not the same as (a−b)/(1+n) .
By using the quadratic formula, the roots of the quadratic equation 2 · x² - 7 · x + 1 are represented by the irrational number x = (7 ± √41) / 4.
How to find the roots of quadratic equation by quadratic formula
For polynomials of the form a · x² + b · x + c = 0, the two roots can be found analytically by quadratic formula, whose expression is described below:
[tex]x = \frac{-b \pm \sqrt{b^{2}-4\cdot a\cdot c}}{2\cdot a}[/tex]
If we know that a = 2, b = - 7 and c = 1, then the roots of the polynomial are:
x = 7/4 ± (1/4) · √41
x = (7 ± √41) / 4
By using the quadratic formula, the roots of the quadratic equation 2 · x² - 7 · x + 1 are represented by the irrational number x = (7 ± √41) / 4.
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Choose the letter of the equation for
the graph.
KIN
2
a. y =
sin x + 2
b. y = cos x + 2
c. y = cos(x - π)
d. y =
sin(x - π)
e. y = sin(x + π/2)
Enter
Answer:
a
Step-by-step explanation:
The midline is at y=2.
Eliminate c, d, e
Also, since there is no horizontal shift amongst the remaining options, we know that since y=2 when x=0, this means it must be a sine curve.
This means the answer is a.
I need help with this one can someone show me step by step
Answer:
A
Step-by-step explanation:
You are given one angle and one side are similar
for Angle-Side-Angle you obviously need one more angle attached to the given side
A angle r = ~ angle c
How is the theoretical probability of an event computed?
The theoretical probability of an event computed as
Theoretical Probability = [tex]\frac{ Number of desired outcomes}{ Number of possible outcomes.}[/tex] This is further explained below.
What is theoretical probability?Generally, The theoretical probability formula is the ratio of the number of successful outcomes to the total number of possible possibilities. We may write this formula out as follows:
In conclusion, the theoretical probability is mathematically given as
Theoretical Probability = [tex]\frac{ Number of desired outcomes}{ Number of possible outcomes.}[/tex]
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Write out the form of the partial fraction decomposition of the function. Do not determine the numerical values of the coefficients.[tex]\frac{t^4+t^2+1}{(t^2+4)(t^2+2)^2}[/tex]
The form of the partial fraction decomposition is [tex]\frac{At + B}{(t^2 + 4)} + \frac{Ct + D}{(t^2 + 2)} + \frac{Et + F}{(t^2 + 2)^2}[/tex]
How to decompose the function?The fraction is given as:
[tex]\frac{t^4 + t^2 + 1}{(t^2 + 4)(t^2 + 2)^2}[/tex]
To decompose the above, we make use of the following rule:
[tex]\frac{px^n + qx^m +....+ r}{(x^2 + a)(x^2 + b)^2} = \frac{Ax + B}{(x^2 + a)} + \frac{Cx + D}{(x^2 + b)} + \frac{Ex + F}{(x^2 + b)^2}[/tex]
So, we have:
[tex]\frac{t^4 + t^2 + 1}{(t^2 + 4)(t^2 + 2)^2} = \frac{At + B}{(t^2 + 4)} + \frac{Ct + D}{(t^2 + 2)} + \frac{Et + F}{(t^2 + 2)^2}[/tex]
Hence, the form of the partial fraction decomposition is [tex]\frac{At + B}{(t^2 + 4)} + \frac{Ct + D}{(t^2 + 2)} + \frac{Et + F}{(t^2 + 2)^2}[/tex]
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x+7/|x+7| for x> -7
absolute value
Answer: 1
Step-by-step explanation:
If [tex]x > -7[/tex], then [tex]x+7 > 0 \implies |x+7|=x+7[/tex]
So, we have the original fraction is equal to
[tex]\frac{x+7}{x+7}=\boxed{1}[/tex]
answer the questions below to find the total surface area of the can
The total surface area of the tomato ketchup given in the diagram can be determined as follows:
The total surface area of a shape is the addition of the areas of its individual surface.
So that the questions can be answered as thus:
A. To find the area of the given circle;
i. Area of a circle = [tex]\pi r^{2}[/tex]
where r is the radius of the circle.
area of the circle = π[tex](2.5)^{2}[/tex]
= 6.25[tex]\pi[/tex]
ii. There are two identical circles in the cylinder.
iii. The total area of all circles = 2(6.25[tex]\pi[/tex])
= 12.5[tex]\pi[/tex] square inches
B. To find the area of the rectangle;
i. one side of the rectangle is 5 inches.
ii. The other side of the rectangle = 2[tex]\pi[/tex]r
= 2(2.5)[tex]\pi[/tex]
= 5[tex]\pi[/tex] inches
iii. The area of the rectangle = l x b
= 5[tex]\pi[/tex] x 5
= 25[tex]\pi[/tex] square inches
C. Total surfce area of the cylinder = 5[tex]\pi[/tex] + 25[tex]\pi[/tex]
= 30[tex]\pi[/tex] square inches
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Answer:
Step-by-step explanation:
First box
6.25
2
12.5
------
Second box
------
5
5
25
------
Last box
------
37.5
What are the slope and the y-intercept of the linear function that is represented by the table? x y Negative three-fourths Negative StartFraction 1 Over 30 EndFraction Negative one-half Negative StartFraction 2 Over 15 EndFraction One-fourth Negative StartFraction 13 Over 30 EndFraction Two-thirds Negative three-fifths a The slope is Negative two-fifths, and the y-intercept is Negative one-third. b The slope is Negative one-third, and the y-intercept is Negative two-fifths. c The slope is One-third, and the y-intercept is Negative two-fifths. d The slope is Two-fifths, and the y-intercept is Negative one-third.
The slope and the y-intercept of the function are: A. Slope = -2/5; y-intercept = -1/3.
How to Find Slope and Y-intercept of a Linear Function?Slope (m) = change in y / change in x.
Using two pairs of points form the table value, (1/4, -13/30) and (2/3, -3/5)"
Slope (m) = (-13/30 - (-3/5))/(1/4 - 2/3)
Slope (m) = (-13/30 + 3/5))/(1/4 - 2/3)
Slope (m) = (1/6)/(-5/12)
Slope (m) = (1/6)(12/-5) = 12/-30
Slope (m) = -2/5
Plug in m = -2/5 and (x, y) = (2/3, -3/5) into y = mx + b to find the y-intercept (b).
-3/5 = -2/5(2/3) + b
-3/5 = -4/15 + b
-3/5 + 4/15 = b
-1/3 = b
b = -1/3
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Answer:
A. Slope = -2/5; y-intercept = -1/3.
Step-by-step explanation:
Hope this helps!!
A high school baseball player has a 0.229 batting average. in one game, he gets 5 at bat. what is the probability he will get at least 2 hits in the game? round your answer to four places.
The probability he will get at least 2 hits in the game is 0.470
GivenThe batting average is 0.229
In one game he gets 5 at bat
To find the probability he will get at least 2 hits we use binomial distribution.
What is Binomial distribution?The binomial distribution is also a Frequency distribution used for the possible no. of successful outcomes in a given no. of trials in each of which there is the same probability of success.
So we have
n = 5
p = 0.299
q = 1 - p
= 0.701
[tex]P(X) = nC_{x} p^x q^(n-x)[/tex]
P(at least 2 hits in the game) = 1 - P(less than 2 hits)
= 1 - P(0) - P(1)
[tex]= 1 - 0.701^5 - 5C1 x 0.299 x 0.701^4[/tex]
= 1 - 0.169 - 0.361
= 0.470
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A living room is 12 feet long and 10 feet wide. If the ceiling is 10 feet high, what is the total surface area of the
four walls?
Answer:
if we plus 12 and 10the answer is 22 feet
Megan has 5 yards of cloth to make
napkins. She needs yard for each
napkin. How many napkins can
Megan make with the cloth?
napkins
Answer: 5
5yards = 5napkins
Which of the following illustrates the truth value of the following conditional?
p: 7 + 1 = 0
q: 2 + 2 = 5
F F → T
T T → T
F T → F
T F → T
The truth table for implication of the equations is F F ⇒ T
What is a truth table?A truth table is a mathematical logic table that shows the truth values of different logic statements combined by a given logic rule.
Analysis:
P: 7 +1 is not equal to 0 making P to be false(F)
q: 2+2 is not equal to 5 making q to be false(F)
so for conditional or implication, F F⇒ T
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Help? I tried the first two, can't get them. I don't know how I got the third.
Answer:
See below
Step-by-step explanation:
(6x+14)(x-8) = Expand
6x^2 - 48x + 14x - 112 =
6x^2 - 34x-112 A = 6 B = -34
Answer:
Step-by-step explanation:
[tex]x(6x+14)-8(6x+14)\\6x^2+14x-48x-112\\[/tex]
Rest, you have to substitute the value. Such as A= -112
what is the best estimate of the sum of the fraction? 31/4 +17/3 +8/18
The best estimate of the sum of the expression given is [tex]\rm 13 \dfrac {31}{26}[/tex]
What is a Fraction ?
A fraction is written as p/q , where q [tex]\rm \ne[/tex] 0
It is asked to determine the sum of the fraction
31/4 + 17/3 + 8/18
Taking the LCM of 4 , 3 , 18
LCM of 4 , 3 ,18 is 36
Therefore
[tex]\rm \dfrac{ 31 *9 + 17 *12 + 8 *2}{36 }[/tex]
(279+204+16) /36
499 / 36
[tex]\rm 13 \dfrac {31}{26}[/tex]
Therefore the best estimate of the sum of the expression given is [tex]\rm 13 \dfrac {31}{26}[/tex].
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Yasmin purchased 6 heads of cabbage that each weighed 2 and StartFraction 3 over 8 EndFraction pounds. How much did the cabbage weigh all together?
The total weight of cabbage is 14 1/4
What is Equation?An equation can be defined as a mathematical statement consisting of an equal symbol between two algebraic expressions that have the same value.
Given:
Yasmin purchased 6 heads of cabbage that each weighed 2 and 3/8 pounds.
So,
2 and 3/8 = 19/8
1 cabbage = 19/8 pounds
6 cabbages = x pounds
1 * x = 6 * 19/8
x = 114/8
x = 14 2/8
x = 14 1/4
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This is a cross-sectional view of candy bar ABC. A candy company wants to create a cylindrical container for candy bar ABC so that it is circumscribed about the
candy bar. If AD = 2.5 cm, what is the smallest diameter of wrapper that will fit the candy bar?
TheThe smallest diameter of wrapper that will fit the candy bar is 5cm.
Smallest diameterGiven:
AD = DC
AC = AD + DC
Segment AD = 2.5cm
Hence:
AC = AD + AD (AD = DC)
AC = 2AD
Where:
AD=2.5
So,
AC = 2(2.5cm)
AC = 5cm
Therefore the smallest diameter of wrapper that will fit the candy bar is 5cm.
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Answer: 5cm.
Step-by-step explanation:
Solve 5x-4<2x+5. Enter your answer as an inequality.(Need help ASAP pls!!!)
Answer: x < 3
Step-by-step explanation:
To solve this inequality, we will simplify and isolate the x variable.
Given:
5x - 4 < 2x + 5
Add 4 to both sides:
5x < 2x + 9
Subtract 2x from both sides:
3x< + 9
Divide both sides by 3:
x < 3
Answer:
x < 3
Step-by-step explanation:
Well you want to isolate x so start by subtracting 2x from both equations that way you remove it from the right side and it's only on the left side.
subtract 2x from both equations
[tex]3x-4 < 5[/tex]
add 4 to both equations
[tex]3x < 9[/tex]
divide both sides by 3
[tex]x < 3[/tex]