Answer: $37.45(to the nearest hundredths)
Step-by-step explanation:
% increase in last year living cost =5%
% increase in last year income =5%
This year income = $39.420
To calculate last year income implies
5% decrease of this year income; thus:
5/100 * $39.420 = $1.971
Last year income = $39.420 - $1.971 = $37.449 = $37.45 (to the nearest hundredths)
Answer:
37.4490 (rounded to the nearest hundredth) = 37.45
Step-by-step explanation:
ok so her bills or wateva went up 5% right and she gets a lil 5% raise or sumn from her job which made her money got up to $39.42. so if you think about it all you do is multiply 39.42 and (5%) which = 0.05 in decimal form and then after you multiply you should get 1.9710 and once you get that you gone take her money she getting now which is 39.42 - her 5% raise she got and once you subtract you gone get 37.4490 or 37.45 rounded
Darren has a piece of wood that is 7 in by 8 in. Explain how he could divide this large rectangle into smaller rectangles
The rectangle can be divided into 6 ways as, 1 × 56 or 56 × 1, 2 × 28 or 28 × 2, and 4 × 14 or 14 × 4.
What is rectangle?An enclosed 2-D shape called a rectangle has four sides, four corners, and four right angles (90°). A rectangle has equal and parallel, opposite sides. Since a rectangle is a two-dimensional form, it has two dimensions: length and width. The rectangle's longer side is its length, while its shorter side is its breadth.
Given:
Darren has a piece of wood that is 7 in by 8 in
The area of the rectangle can be given by,
[tex]Area = Length\times width[/tex]
Area = 7 × 8
Area = 56
You can now divide the length and width as shown below,
Rectangle = 1 × 56 or 56 × 1
Rectangle = 2 × 28 or 28 × 2
Rectangle = 4 × 14 or 14 × 4
Therefore, the rectangle can be divided into 6 ways as 1 × 56 or 56 × 1, 2 × 28 or 28 × 2, and 4 × 14 or 14 × 4.
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What is the slope of the line?
Answer:
[tex]\displaystyle 2[/tex]
Step-by-step explanation:
Starting from the y-intercept of [tex]\displaystyle [1, 1],[/tex]you do [tex]\displaystyle \frac{rise}{run}[/tex]by either moving two blocks south over one block west or two blocks north over one block east [west and south are negatives]. Doing this will give you the equation below:
[tex]\displaystyle y = 2x + 1[/tex]
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A function is shown f(x)=2/3x+3 what is the value of f(12)
Answer:
55/18
Step-by-step explanation:
f(x) = 2/3*12 +3
= 1/18 +3
=55/18
The value of f (12) will be;
⇒ f (12) = 11
What is substitution method?
To find the value of any one of the variables from one equation in terms of the other variable is called the substitution method.
Given that;
The function is,
⇒ f (x) = 2/3x + 3
Now,
Since, The function is,
⇒ f (x) = 2/3x + 3
Substitute x = 12 in above equation, we get;
⇒ f (x) = 2/3x + 3
⇒ f (12) = 2/3 × 12 + 3
⇒ f (12) = 2 × 4 + 3
⇒ f (12) = 11
Thus, The value of f (12) will be;
⇒ f (12) = 11
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the product of a 3x3 and a 6x6 matrix would be
54 54 54
54 54 54
54 54 54
How would I solve this?
Answer:
The valid value of x is x=-2
Step-by-step explanation:
we know that
The sum of the interior angles of any quadrilateral must be equal to 360 degrees
so
[tex](7x^{2}-24x)+100+(24-46x)+(3x^{2}+56)=360[/tex]
solve for x
Combine like terms
[tex]10x^{2}-70x+180=360[/tex]
[tex]10x^{2}-70x-180=0[/tex]
Divide by 10 both sides
[tex]x^{2}-7x-18=0[/tex]
The formula to solve a quadratic equation of the form
[tex]ax^{2} +bx+c=0[/tex]
is equal to
[tex]x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}[/tex]
in this problem we have
[tex]x^{2}-7x-18=0[/tex]
so
[tex]a=1\\b=-7\\c=-18[/tex]
substitute in the formula
[tex]x=\frac{-(-7)(+/-)\sqrt{-7^{2}-4(1)(-18)}} {2(1)}[/tex]
[tex]x=\frac{7(+/-)\sqrt{121}} {2}[/tex]
[tex]x=\frac{7(+/-)11} {2}[/tex]
[tex]x=\frac{7(+)11} {2}=9[/tex]
[tex]x=\frac{7(-)11} {2}=-2[/tex]
Remember that
The measure of the interior angle cannot be a negative number
For x=9
we have that the measure of one interior angle of quadrilateral is
[tex]24-46x[/tex]
substitute the value of x
[tex]24-46(9)=-390\°[/tex]
therefore
The value of x=9 cannot be a solution
For x=-2
The measure of the interior angles are
[tex](7(-2)^{2}-24(-2))=76\°\\100\°\\(3(-2)^{2}+56)=68\°\\24-46(-2)=116\°[/tex]
therefore
The valid value of x is x=-2
Please answer this correctly
Answer:
120 50 pound bags
Step-by-step explanation:
first you see how much 50 pounds is to one ton which one 50 pound bag is equal to .025 tons
then you multiply .025 by 120 to get 3 (tons)
that shows that the answer is correct
need help asap thank you..
Answer:
r = 0.93
Step-by-step explanation:
The correlation coefficient gives us the "strongness" of two variables associated.
This is the value "r".
It is positive if there is strong relationship (one goes up, another goes up and vice versa)
It is negative, if one goes up and another goes down (inverse relationship)
First of all, from the scatter points, we see that as x increases, y also tend to increase. And if we were to draw a line of best fit that goes through max points, we would see the line slopes UPWARD (means as x increases, y also increase).
Thus, the value of "r" will be positive. So we can eliminate first and second choice. Now remains the other two choices
0.64
0.93
The closer the value to 1, the more that line is slopier, and less that value from 1, the line will be less "slopy".
A perfect one would be a line with slope 1, as 1 unit increase in x, the y increases 1 unit as well.
So, if we were to draw a line, we would see that it will be very close to a value of 1. The value of 0.64 can be eliminated because the points are not much "relaxed" as it should be for 0.64.
So, the correct choice is the 4th choice, r = 0.93
Through:(-4,-3), parallel to y=2x
If the line is parallel to y=2x, the line must have the same slope.
So, the slope of your line is 2.
Now we need to find the y intercept. We should use the point given.
y=mx+b
-3=2(-4)+b
b=5
Equation: y=2x+5
-4=-2/3u solve for U
Answer:
u = 6Step-by-step explanation:
[tex]-\dfrac{2}{3}u=-4\qquad\text{change the signs}\\\\\dfrac{2}{3}u=4\qquad\text{multiply both sides by}\ \dfrac{3}{2}\\\\\dfrac{3\!\!\!\!\diagup^1}{2\!\!\!\!\diagup_1}\cdot\dfrac{2\!\!\!\!\diagup^1}{3\!\!\!\!\diagup_1}u=4\!\!\!\!\diagup^2\cdot\dfrac{3}{2\!\!\!\!\diagup_1}\\\\u=(2)(3)\\\\u=6[/tex]
A school receives a shipment of books. There are 60 cartons, and each carton weighs 42 pounds. The school’s elevator can hold 2200 pounds. What is the greatest number of cartons that can be carried on the elevator at one time if no people ride with them? Show all of your work. Then, explain your solution.
Answer:
52
Step-by-step explanation:
2200 / 42 = 52.381
You cannot bring a section of a carton, and 53 cartons is too much
53 * 42 = 2226. This goes over the weight limit.
52 * 42 = 2184. 2184 is less than 2200, so 52 is the greatest number you can bring
By dividing the elevator's weight capacity of 2200 pounds by the weight of one 42-pound carton, we find it can carry a maximum of 52 whole cartons simultaneously without exceeding the weight limit.
Explanation:To solve this problem, we can use simple mathematical analysis. We need to calculate how many 42-pound cartons can fit into an elevator that has a maximum capacity of 2200 pounds without exceeding this limit.
We start with the equation:
Divide the maximum weight the elevator can hold by the weight of one carton. 2200 pounds ÷ 42 pounds/carton = 52.38 cartons.Since you can't have a fraction of a carton, you need to round down to the nearest whole number. The greatest number of whole cartons is 52.Therefore, the elevator can safely carry 52 cartons at once, without any people in it.
Mr. Milligan bought a puppy for $287 and
sold him for $324. Find his gross profit.
How much money did he have
Answer:
His profit would be $37 of the money he got back.
Step-by-step explanation:
Ms. Hartman’s class is going on a field trip to planetarium. There are 25 students in the class, and each students need to purchase a day pass to the planetarium and a lunch ticket. The day pass costs $10 and the lunch ticket costs t dollars
Pick all the expressions that represent the total costs for the field trip
250+10t
t(25+10)
250+25t
25(10+t)
What is the difference between an equation with a variable and an inequality with a variable?
Answer:
An equation is a statement that maintains the equal value of two mathematical expressions. If the statement is true for all variable values, it is called an identity. ... An equation shows the equality of two variables while an inequality shows the inequality of two variables
An equation with a variable expresses a precise equality between expressions, while an inequality with a variable represents a range of possible values expressing that one value is greater or less than another. Equations typically have a definitive set of solutions, whereas inequalities signify a continuum of solutions that satisfy the relational condition.
Explanation:The difference between an equation with a variable and an inequality with a variable lies in the relationship they describe between the variables. An equation states that two expressions are equal by means of the equal sign (=), implying a specific value or set of values for the variables involved. For example, in the equation of a line y = mx + b, where x and y are the variables on the horizontal and vertical axis respectively, and b and m represent the y-intercept and the slope, we can see a direct relationship between x and y that determines the position of a point on a Cartesian plane. Conversely, an inequality such as x > y or x < 10 indicates a range of possible values rather than a single specific value, expressing a relationship where one value is either greater than or less than another value, but not equal to it.
In the context of a graph, the independent variable typically plotted on the x-axis is assumed to be the cause or input which then determines the value of the dependent variable, depicted on the y-axis. The dependent variable changes in response to the independent variable, thereby showing their relationship. This is often represented by inequalities when a range of outcomes is possible, extending beyond the linear relationship that might be depicted with an equation.
For the ordered pair, give three other ordered pairs with θ between −360° and 360° that name the same point.
(−3, 330°)
Three other ordered pairs with θ between −360° and 360° that name the same point as (−3, 330°) are (−3, 30°), (−3, 690°), and (−3, -30°).
Explanation:Given the ordered pair (−3, 330°), we can find three other ordered pairs that name the same point by adding or subtracting 360° from the given angle:
(−3, 30°)(−3, 690°)(−3, -30°)These three ordered pairs have angles between −360° and 360° and represent the same point as the given ordered pair.
Find the product of 7 and 28. Use place value and the distributive property to rewrite the product. 7(28) = 7(20 + 8)
To find the product of 7 and 28 using place value and the distributive property, rewrite the product as 7(20 + 8). Distribute the 7 to both terms inside the parentheses and then add the resulting products.
Explanation:To find the product of 7 and 28 using place value and the distributive property, we can rewrite the product as 7(20 + 8). This is because 28 can be decomposed into 20 + 8.
Using the distributive property, we can distribute the 7 to both terms inside the parentheses: 7(20) + 7(8).
The product of 7 and 20 is 140 and the product of 7 and 8 is 56. Therefore, the final product is 140 + 56 = 196.
What is the equation in point slope form of the line that passes through the point (1, −2) and has a slope of 3?
(A) y+2=3(x−1)
(B) y+1=3(x−2)
(C) y−2=3(x+1)
(D) y−1=3(x+2)
Answer:
(A) y+2=3(x-1)
Step-by-step explanation:
y-y1=m(x-x1)
y-(-2)=3(x-1)
y+2=3(x-1)
Nick gave 12 marbles to his friends he gave his 4 friends all the same number of marbles what number sentence shows how many marbles nick gave each friend
Answer:
Nick gave 3 marbles to each of his 4 friends.
Step-by-step explanation:
Given:
Total Number of Marbles = 12
Number of Friends = 4
Let the number of marbles to be divided in each friend be x
Solution:
To find the number of marbles to be divided in each friend we have to divide Total Number of Marbles by Number of Friends.
Hence number of marbles to be divided in each friend x = [tex]\frac{\textrm{Total Number of Marbles}}{\textrm{Number of friends}}= \frac{12}{4}=3[/tex]
Hence we can say that Nick gave 3 marbles to each of his 4 friends.
the child weighs 55 lbs. Calculate the child’s weight in pounds to kilograms
Which graph best represents the function f(x) = (x - 1)(x + 3)(x-3)?
Answer:
C) –|x| + 3
I got the answer correct!!!
Two hundred thousand twenty five
confused as to what you want but if you want to see the number then its 200,025
Answer:
200,025
Step-by-step explanation:
200 1000s so 200,0000 and add 25
984÷x=3 remainder:84
The value of x in 984 ÷ x = 3 remainder: 84 is 300
Step-by-step explanation:
In the division problem A ÷ B = Q [tex]\frac{R}{B}[/tex], where
A is the dividendB is the divisorQ is the quotientR is the remainderIf A is divisible by B, then R = 0
Examples:
23 ÷ 5 = 4 [tex]\frac{3}{5}[/tex] , The dividend is 23, the divisor is 5, the quotient is 4, and the remainder is 354 ÷ 6 = 9, 54 is divisible by 6 , then the remainder = 0The rule of the dividend is ⇒dividend = (divisor × quotient) + reminder
Let us use this rule to find x
984 ÷ x = 4, remainder 84
∵ Dividend = 984
∵ Divisor = x
∵ Quotient is 3
∵ Remainder = 84
- Substitute these values in the rule of dividend above
∵ 984 = (x × 3) + 84
∴ 984 = 3x + 84
- Subtract 84 from both sides
∴ 900 = 3x
- Divide both sides by 3
∴ 300 = x
∴ The value of x = 300
The value of x in 984 ÷ x = 3 remainder: 84 is 300
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give examples of 100% increase 100% decrease and 100% error . explain each
A 100% increase means a value doubles, a 100% decrease means it drops to zero, and 100% error indicates complete inaccuracy. For increases and decreases, the percentage is calculated based on the ratio of change to the original amount multiplied by 100%. Percent error compares the experimental value with the accepted value to judge accuracy.
Explanation:An example of a 100% increase would be if you have $50, and this amount doubles to $100. Here the final amount is 100% more than the original, as the increase ($50) is equal to the original value ($50). The formula used is % increase = (Amount of increase/original amount) x 100%. So, % increase = ($50/$50) x 100% = 100%.
A 100% decrease implies that something diminishes completely to zero. For instance, if you have 10 apples and all of them are taken away, the percent decrease is 100% since the decrease (10 apples) equals the original quantity (10 apples). The calculation would be % decrease = (Decrease/original amount) x 100%, which results in % decrease = (10/10) x 100% = 100%.
100% error in a measurement means the measurement is completely inaccurate. For example, if the accepted value of a length is 30 cm and the experimental measurement is 60 cm, then the percent error is calculated as: % error = (Absolute value of (Experimental value - Accepted value)/Accepted value) x 100%, which in this case is % error = (|60 cm - 30 cm|/30 cm) x 100% = 100%. This represents a complete deviation from the actual value.
I don’t know where to start with this problem
Answer:
√(4/5)
Step-by-step explanation:
First, let's use reflection property to find tan θ.
tan(-θ) = 1/2
-tan θ = 1/2
tan θ = -1/2
Since tan θ < 0 and sec θ > 0, θ must be in the fourth quadrant.
Now let's look at the problem we need to solve:
sin(5π/2 + θ)
Use angle sum formula:
sin(5π/2) cos θ + sin θ cos(5π/2)
Sine and cosine have periods of 2π, so:
sin(π/2) cos θ + sin θ cos(π/2)
Evaluate:
(1) cos θ + sin θ (0)
cos θ
We need to write this in terms of tan θ. We can use Pythagorean identity:
1 + tan² θ = sec² θ
1 + tan² θ = (1 / cos θ)²
±√(1 + tan² θ) = 1 / cos θ
cos θ = ±1 / √(1 + tan² θ)
Plugging in:
cos θ = ±1 / √(1 + (-1/2)²)
cos θ = ±1 / √(1 + 1/4)
cos θ = ±1 / √(5/4)
cos θ = ±√(4/5)
Since θ is in the fourth quadrant, cos θ > 0. So:
cos θ = √(4/5)
Or, written in proper form:
cos θ = (2√5) / 5
What is 62 divided by 5,841
Answer:
5,841 divided by 62 is 94.2
Graph the solution to the inequality on the number line.
p < 20.2
Answer:
See above graph
Step-by-step explanation:
In between those whole numbers, each mark represents ⅕ [or 0,2], therefore you move one-fifth block to the right of 20 with an open circle, then shade everything to the left.
≥, ≤ → Solid Circle [●]
>, < → Blank Circle [○]
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To graph the solution of the inequality, p < 20.2, one must draw a number line. Mark a point on the number line at 20.2 and shade or draw an arrow pointing to the left of this mark. Ensure to use an open circle at 20.2 to show that it itself is not part of the solution.
Explanation:To graph the solution of the inequality p < 20.2 on a number line, you need to take the following steps:
Draw a straight horizontal line to represent your number line. Mark a point on the number line at 20.2. This point represents the number 20.2. Since the inequality is p < 20.2, which means 'p is less than 20.2', you will shade or draw an arrow pointing to the left of the 20.2 point. This shows that all numbers less than 20.2 are solutions to the inequality. Finally, at the 20.2 mark, put an open circle to indicate that 20.2 itself is not included in the solution. That's because 'p' is strictly less than 20.2, not less than or equal to 20.2. Learn more about Inequality Graphing here:
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HELP ASAP!!! A circle has a radius of 6 meters. What is the circumference of the circle?
A.12 Pi
B. 9 Pi
C.6 Pi
D.3 Pi
Answer:
12Pi
Step-by-step explanation:
circumference of a circle can be worked out as Pi x diameter
Diameter = 2 x radius, therefore here d = 12 and circumference = 12 Pi
The circumference of the circle is C = 12π meters
What is a Circle?A circle is a closed figure in which the set of all the points in the plane is equidistant from a given point called “center”. Every line that passes through the circle forms the line of reflection symmetry. Also, the circle has rotational symmetry around the center for every angle
The circumference of circle = 2πr
The area of the circle = πr²
where r is the radius of the circle
The standard form of a circle is
( x - h )² + ( y - k )² = r²,
where r is the radius of the circle and (h,k) is the center of the circle.
The equation of circle is ( x - h )² + ( y - k )² = r²
For a unit circle , the radius r = 1
x² + y² = r² be equation (1)
Now , for a unit circle , the terminal side of angle θ is ( cos θ , sin θ )
Given data ,
Let the radius of the circle be r = 6 meters
Now , circumference of circle = 2πr
On simplifying , we get
C = 2π ( 6 )
C = 12π meters
Hence , the circumference is 12π meters
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Given the function y = 1/2x - 1
Find and plot the points for x = -4, X = 2, and x = 6
please show me the graph
Answer:
Step-by-step explanation:
if y = 1/2x - 1 is the function
y = 1/2(-4) - 1
y = -2 - 1
y = -3
(-4, -3)
y = 1/2(2) -1
y = 1 - 1
y = 0
(2, 0)
y = 1/2(6) - 1
y = 3 - 1
y = 2
(6, 2)
the pictures should be in order
Answer:
[tex]\displaystyle 2 = f(6), 0 = f(2), -3 = f(-4)[/tex]
Step-by-step explanation:
[tex]\displaystyle \frac{1}{2}[6] - 1 = 3 - 1 = 2 \\ \\ \frac{1}{2}[2] = 1 - 1 = 0 \\ \\ \frac{1}{2}[-4] - 1 = -2 - 1 = -3[/tex]
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lets say you start with the equation 12b=24. what step should you take to find the quantity that equals 4b
Answer:
4b = 8
Step-by-step explanation:
Given 12b = 24
This is written as (4 X 3)b = 24
⇒ 4b X 3 = 24
Dividing by 3 throughout, we have
4b = [tex]$ \frac{24}{3} $[/tex] = 8.
Therefore, the value of 4b is 8.
Solve x2 + 2x = 4 for x by completing the square. x equals plus or minus square root of 5 plus 1 x equals plus or minus square root of 5 minus 1 x = 1 x = 3
Answer:
x equals plus or minus square root of 5 minus 1
Step-by-step explanation:
we have
[tex]x^{2} +2x=4[/tex]
Divide by 2 the coefficient of the x-term
[tex]2/2=1[/tex]
squared the number
[tex]1^2=1[/tex]
Adds both sides
[tex]x^{2} +2x+1=4+1[/tex]
[tex]x^{2} +2x+1=5[/tex]
Rewrite as perfect squares
[tex](x+1)^{2}=5[/tex]
take the square root both sides
[tex]x+1=(+/-)\sqrt{5}[/tex]
[tex]x=(+/-)\sqrt{5}-1[/tex]
therefore
x equals plus or minus square root of 5 minus 1
Answer - B. x = ± [tex]\sqrt{5[/tex] - 1
The student council at coyle middle school decided to do fundraiser selling candy Each $50 box of cany soldmade the student council 47% profit how much will the student council make in profit from each box of candy
Answer:
The student council from each box of candy will make the profit of $23.50.
Step-by-step explanation:
Given:
Each box of candy costs $50. Profit of 47% from each candy.
Now, to get the amount of how much profit from each box:
Amount of profit (A) = Profit% of cost of candy of each box
A = 47% of $50
[tex]A=\frac{47}{100}\times 50[/tex]
[tex]A=0.47\times 50[/tex]
[tex]A=23.50[/tex]
Amount of profit = $23.50
Therefore, the student council from each box of candy will make the profit of $23.50.