NOTE: I ACCIDENTALLY clicked one star. That DOES NOT count as a real rating, and this DOES NOT mean my answer is bad!
Answer:
Commutative Property of Addition
Step-by-step explanation:
Step 2: -4 + (-37) + (-3) + (-47) + 7
Step 3: -4 + (-37) + (-47) + (-3) + 7
Because the order was changed, it is the Commutative Property.
Approximate: log 1/2 5
Answer:
-2.32193...
Step-by-step explanation:
log.5 (5)
Answer:
[tex]\log_{\frac{1}{2}} 5=-2.32193[/tex]
Step-by-step explanation:
Given : Expression [tex]\log_{\frac{1}{2}} 5[/tex]
To find : The solution of the given expression ?
Solution :
We have given expression [tex]\log_{\frac{1}{2}} 5[/tex]
Applying logarithmic property,
[tex]\log_b a=\frac{\log_e a}{\log_e b}=\frac{\ln a}{\ln b}[/tex]
Where, [tex]\log _e[/tex] is the natural logarithm indicated as [tex]\ln[/tex]
[tex]\log_{\frac{1}{2}} 5=\frac{\ln (5)}{\ln {\frac{1}{2}}}[/tex]
[tex]\frac{\ln (5)}{\ln {\frac{1}{2}}}=\frac{1.60943}{ -0.69315}[/tex]
[tex]\frac{\ln (5)}{\ln {\frac{1}{2}}}=-2.32193[/tex]
Therefore, [tex]\log_{\frac{1}{2}} 5=-2.32193[/tex]
A school treasurer purchased jackets for the school store. She used the system of equations below to determine the price for each student jacket, x , and the price for each adult jacket , y. Write a system of equations that has the same solution set as the system of equations
Answer:
A: [tex]7x+y=801[/tex]
B: [tex]18x+3y=1949[/tex]
Step-by-step explanation:
we are given system of equations as
[tex]84x+12y=9612[/tex]
[tex]126x+21y=13643[/tex]
We can simplify each system of equations
[tex]84x+12y=9612[/tex]
we can factor out common terms
[tex]12\times 7x+12\times y=12\times 801[/tex]
[tex]12(7x+y)=12\times 801[/tex]
we can divide both sides by 12
[tex]7x+y=801[/tex]
now, we can simplify second system of equation
[tex]126x+21y=13643[/tex]
Firstly, we can factor
[tex]7\times 18x+7\times 3y=7\times1949[/tex]
[tex]7(18x+3y)=7\times1949[/tex]
we can divide both sides by 7
[tex]18x+3y=1949[/tex]
so, we get
A: [tex]7x+y=801[/tex]
B: [tex]18x+3y=1949[/tex]
What is the area in square inches 3/8 inch 2/3 inch
Answer:
0.25 in²
Step-by-step explanation:
This is all basic stuff of conversion and multiplication
Option D, The area of the rectangle is 6/24 square inches.
The area of a rectangle is calculated by multiplying its length and width. Given a rectangle with a length of 3/8 inch and a width of 2/3 inch, we can find the area using the formula:
Area = Length × Width
Substitute the given values:
Area = (3/8) × (2/3)
To multiply these fractions, multiply their numerators and their denominators:
Area = (3 × 2) / (8 × 3) = 6 / 24
After simplifying the fraction 6/24, we get 1/4.
Therefore, the area of the rectangle is 1/4 square inches. Among the answer choices, Option D (6/24) is equivalent to 1/4, so the correct answer is Option D.
Complete Question :
What is the area, in square inches, of the rectangle below?
3/8 inch
2/3 inch
Answer choices:
A square 16/9inches
B 25/24 square inches
C 5/11 square inches
D 6/24 square inches
if r=7 what is the circumference?
The formula of a circumference of a circle:
[tex]C=2\pi r[/tex]
We have r = 7. Substitute:
[tex]C=2\pi(7)=\boxed{14\pi}[/tex]
3.a volunteer has 12 pounds of birdseed to put in bird feeders in all of the city parks. there are 3 ¼ Cups of birdseed in pounds, and each bird feeder holds about ¾ cups of birdseed.how many birds feeders can the volunteer fills completely?
Answer:
4 Bird Feeders
Step-by-step explanation:
3 1/4 ALSO is 13/4
13/4 dived by 3/4 or 13/3 witch is 4 and some extra so it can only fill four feeders fully
Answer:
52 bird feeders
Step-by-step explanation:
First, you must determine how much birdseed the volunteer has in cups. To do this, multiply the 12 pounds by the 3 1/4 cups, as there are 3 1/4 cups in one pound. This means the volunteer has 39 cups of birdseed.
Then you must divide the amount of birdseed the volunteer has (39 cups) by the amount of birdseed needed to fill a bird feeder (3/4 cups), which will give you the amount of bird feeders the volunteer can fill (52 bird feeders).
Casey buys a bracelet. She pays for the bracelet and pays \$0.72$0.72 in sales tax. The sales tax rate is 6\%6%. What is the original price of the bracelet, before tax?
Answer:
$12.00
Step-by-step explanation:
If they paid $0.72 in tax and tax is 6% or .06 then you could create an equation like this: x * .06 = .72 with x representing the original cost of the bracelet. Now you can just solve for x like so:
x * .06 = .72
÷.06 ÷.06
x = 12
Answer:
$12.00
Step-by-step explanation:
How do you divide decimals
If the divisor is not a whole number, move decimal point to right to make it a whole number and move decimal point in dividend the same number of places.
Divide as usual. ...
Put decimal point directly above decimal point in the dividend.
Check your answer.
Answer:
Here’s one way to do it.
Step-by-step explanation:
Example: Divide 0.539 by 0.11
0.11)0.539
Step 1. Move the decimal points so the divisor is a whole number.
Move them two spaces to the right in both divisor and dividend.
11)53.9
Step 2. Do the long division as usual.
The only difference is that you put the decimal point in the quotient directly above the one in the dividend.
4.9
11)53.9
44
99
99
0
0.539 ÷ 0.11 = 4.9
Sally needs 6 gallons of water, but she only has a 2 quart pitcher. How many times does she need to fill it up to make 6 gallons? A) 3 times B) 8 times C) 12 times D) 24 times E) 36 times
Answer: E
Step-by-step explanation: 1 gallon is equal to 4 quarts. If Sally needs to fill and refill a 2 quart pitcher with 6 gallons of water, multiply 6 by 4 to get 24.
The Gonzalez family has three children.on summer break they went to an amusement park.they bought 3 child tickets for $18.50 and 2 adult tickets.If they spent a total of $104.50, how much was the price of each adult ticket?
Answer:
43
Step-by-step explanation:
104.50 - 18.50 basically then you get 86 then divided by 2 and get 43
what's the answer to this
4 (w+1)-4w
I nee help!
Question
what's the answer to this
4 (w+1)-4w
Answer:
4Step-by-step explanation:
4 (w+1)-4w =
4w + 4 - 4w =
4
The area of the rectangular slab of foam insulation is 30 square meters. Find the dimensions of the slab.
m (smaller value)
m (larger value)
The dimensions of the slab are:
Length = 3 meters
Width = 10 meters
To find the dimensions of the rectangular slab, we'll use the given area and the expressions for length and width.
Given:
Area = 30 square meters
Length = w
Width = 2w + 4
We can use the formula for the area of a rectangle to solve for w:
Area = Length × Width
Substituting the given values:
30 = w × (2w + 4)
Expanding the equation:
30 = 2w² + 4w
Rearranging the equation in standard quadratic form:
2w² + 4w - 30 = 0
Now, we can solve this quadratic equation using factoring, completing the square, or the quadratic formula. Let's use the quadratic formula:
w = (-b ± √(b² - 4ac)) / (2a)
In this case, a = 2, b = 4, and c = -30. Substituting these values into the formula:
w = (-4 ± √(4² - 4(2)(-30))) / (2(2))
w = (-4 ± √(16 + 240)) / 4
w = (-4 ± √256) / 4
w = (-4 ± 16) / 4
We have two possible solutions for w:
w = (-4 + 16) / 4 = 12 / 4 = 3
w = (-4 - 16) / 4 = -20 / 4 = -5
Since the width of the slab cannot be negative, we discard the second solution (w = -5).
Therefore, the width of the slab (w) is 3 meters.
Now, we can find the length using the given expression:
Length = w = 3 meters
Therefore, the dimensions of the slab are:
Length = 3 meters
Width = 2w + 4 = 2(3) + 4 = 6 + 4 = 10 meters
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All these answers I need help
help how do I solve for 2^3x+1=9?
Answer:
No solution
Step-by-step explanation:
20 Points!!! Need Help ASAP!!! Will mark Brainliest!!!
Given: AB || CD, m
MA. 15
B. 33
C. 87
D. 93
Answer:
The answer is A
Step-by-step explanation:
5x + 18 = 7x - 12
Subtract 7x from both sides
5x + 18 - 7x = 7x - 12 - 7x
-2x + 18 = -12
Subtract 18 from both sides
-2x + 18 - 18 = -12 - 18
-2x = -30
Divide both sides by -2
-2x/-2 = -30/-2
x = 15
Find the circumcenter of triangle ABC with vertices A(-2,4),B(-2,-2),and C(4,-2)
The circumcenter of the triangle ABC with vertices A(-2,4), B(-2,-2), C(4,-2) is found by locating the intersection of the perpendicular bisectors of the sides. It is calculated to be the point (1,1).
Explanation:The circumcenter of a triangle is the point where the perpendicular bisectors of the sides intersect. It is equidistant from all three vertices of the triangle. To find the circumcenter of triangle ABC with vertices A(-2,4), B(-2,-2), and C(4,-2), we first find the midpoints of the sides and then the equations of the perpendicular bisectors.
The midpoint of AB is (-2, 1) and the midpoint of BC is (1, -2). The slope of AB is undefined and that of BC is 0. Hence, the slopes of the perpendicular bisectors are 0 and undefined respectively. The equation of the line passing through (-2,1) with slope 0 is y = 1. The equation of the line passing through (1,-2) with undefined slope is x = 1. The intersection of these two lines (circumcenter) is (1,1).
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You open a lemonade stand in your neighborhood and start off charging $1 per glass of lemonade. After two weeks, you decide that business is doing so well and the demand for lemonade is high so you raise your prices to $1.75. What was your percent increase in price?
Answer:
75% increase in price
Explanation:
75% of $1 is 75 cents
Which equation represents this situation? Five less than a number is equal to three times the sum of the number and two? Question 2 options: 5 - x = 3x + 2 x - 5 = 2x + 3 x - 5 = 3(x + 2) 5 - x = 3(2x)
Answer:
C) X - 5 = 3 (X + 2)
Step-by-step explanation:
X - 5 = 3 (X + 2)
- Write It Out -
5 Less Than A Number:
X is the anonymous number
X - 5
This is equal to three times the sum of the number and two:
Sum = addition
Sum of a number and two
X + 2
Three times this:
3 (X + 2)
X - 5 is the same as this:
X - 5 = 3 (X + 2)
- I.A. -
Linda has $9.00 in her wallet. she buys a card for $1.17. she wants to buy some pens that cost $2.65. what is the maximum number of pens can she buy
Answer:
2 pens
Step-by-step explanation:
Let x represent the number of pens Linda buys. Since they cost $2.65 each, this gives us the expression 2.65x.
Adding the cost of the card to this gives us the expression 2.65x+1.17.
She has a total of $9.00; this gives us the equation
2.65x+1.17 = 9.00
Subtract 1.17 from each side:
2.65x+1.17-1.17 = 9.00-1.17
2.65x = 7.83
Divide both sides by 2.65:
2.65x/2.65 = 7.83/2.65
x = 2.95
We cannot buy a portion of a pen, so the most she can buy is 2 pens.
Answer:
The answer is 2 pens.
Step-by-step explanation:
Total amount Linda has in her wallet = $9
Amount spent on buying a card = $1.17
So, amount left with Linda = [tex]9-1.17=7.83[/tex]
Now, she wants to buy pens that cost $2.65, so the maximum number of pens she can buy are = [tex]\frac{7.83}{2.65}= 2.9[/tex]
But, pens cannot be in decimal, so the maximum pens she can buy are 2.
7- 6u = 5u + 29
9m = 4m - 35
Plz help ASAP(giving brainliest)
Answer:
u=-2, m=-7
Step-by-step explanation:
7-6u=5u+29
7-11u=29
-11u=22
u=-2
9m=4m-35
5m=-35
m=-7
Answer:
u=-2 and m= -7
Step-by-step explanation:
A video streaming service offers unlimited movies for $15 per month or $1.99 per movie. Graph an inequality that represents when the unlimited offer is better.
Answer:
15> 1.99, Good Luck!
Step-by-step explanation:
$15 per month is better because you can rent more than 15 movies!
Go to this link you can create a graph https://nces.ed.gov/nceskids/createagraph/
The inequality that represents when the unlimited offer is better is attached
Graphing an inequality that represents when the unlimited offer is better.From the question, we have the following parameters that can be used in our computation:
Unlimited movies for $15 per month$1.99 per movieSo, we have
y = 15x
y = 1.99x
As an inequality, we have
y > 15x
y > 1.99x
Next, we plot the graph of the system of the inequalities
From the graph, we have solution to the system to be the shaded region
This means that all coordinates in the shaded region are the solutions to the system
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find slop for 7x-2y=0.2
Answer:
M=3.5
Step-by-step explanation:
7x-2y=0.2
-7x -7x
-2y = -7x + .02
/-2 /-2 /-2
y= 3.5x+ 0.01
slope is 3.5
create a real life example using either temperature or money to compare -3 and -5
Example with temperature:
The temperature -3 degrees is warmer than -5 degrees. This applies to celsius or fahrenheit. You might also write "negative 3 degrees" as "3 degrees below zero"; the same applies for -5. The absolute difference between the two temperatures is 2 degrees.
=================================================
Example with money:
If your bank balance is -3 dollars and your friend's bank balance is -5 dollars, then your friend owes more money to the bank (s/he owes $2 more than you do).
Negative balances mean you are in debt. Another way to look at this is to consider you want to buy an item worth $10 but you only have $7. If the store owner lends you the difference, which you pay back later, then 7-10 = -3 is the amount of money on your balance sheet indicating you are in debt $3. The order of subtraction is important. Saying 10-7 = 3 shows a positive bank balance and you wouldn't be in debt (and still have $3 in your pocket).
=================================================
In either example, the value -3 is to the right of -5 on the number line so we would write the inequality -3 > -5 to say that -3 is larger than -5. Have a look at the image attached below.
What is the premium for $75000 for a 30 year old male for a 10 year policy ?
Answer: $286.50
If the AP (Annual Premium) $1000 for 30 yr male with 10 yr policy; $3.82...
75000/1000 = 75
75 x $3.83 = $286.50 AP
The premium for a 10-year, $75000 life insurance policy for a healthy 30-year-old male typically ranges from $10 to $20 per month. Actual pricing can vary based on health status, lifestyle, occupation and the specific insurance company's underwriting process. To get the most accurate premium, it's beneficial to shop around and compare quotes.
Explanation:The premium for a life insurance policy varies based on several factors including the age of the individual, the amount of coverage, policy term, and the individual's health status. The question doesn't provide enough information for an exact calculation as we do not know the general health status of the 30-year-old male, his occupation, lifestyle factors or the premium rates of the specific insurance company. However, we can give a general idea.
Assuming this individual is in good health, for a 30-year-old male, a $75000, 10-year term life insurance policy would typically cost between $10 to $20 per month. This is an average and the actual cost can vary greatly based on the factors mentioned.
Also, each insurance company has different pricing and underwriting processes, so it's important to shop around and compare quotes from different companies to ensure you're getting the best rate.
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herbs bakery has an electric bill for april of $112.59. the gas bill for the same month was $215.35. what was the bakery’s total energy bill for the month
Answer: $112.59 + $215.35 = $327.94
Hope this Helps ^^ And Brainliest is always helpful :)
Answer:
The total cost is $327.94
Step-by-step explanation:
215.35 + 112.59 = 327.94
What is 250 percent of 50
250 percent of 50 is 125.
Convert the percent to a decimal by dividing by 100:
250% = 250/100
= 2.5.
Multiply this decimal by the number:
2.5 * 50.
Perform the multiplication:
2.5 * 50 = 125.
Thus, 250% of 50 is 125.
How can you tell by looking at the coordinates of the two triangles that a’b’c’ is a 180 degrees rotation of abc
Answer:
D
Step-by-step explanation:
Under a rotation about the origin of 180°
a point (x, y ) → (- x, - y) → D
Note this only happens if the rotation is about the origin
The high school courtesy club bought red and black ink pens for Teacher Appreciation Day. The club bought 75 pens in all. Each black pen cost $1.75, and each red pen cost $2.00. The club spent $137 altogether for the pens. How many black pens did the club buy?
13
23
48
52
Answer:
52
Step-by-step explanation:
By solving the system of equations derived from the problem, we get that the club bought 23 black pens.
Explanation:Let's denote the number of black pens as 'b' and the number of red pens as 'r'. According to the problem, we have two equations: b + r = 75 (there were 75 pens in total) and [tex]1.75b + 2r = 137[/tex] (the total cost of the pens was $137).
Now, we can solve this system of equations. From the first equation, we can express 'r' as r = 75 - b. Substitute this into the second equation: [tex]1.75b + 2(75-b) = 137.[/tex], simplifying this gives b = 23. So, the club bought 23 black pens.
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Cindy bought 5 dresses for $20 each and 3 pairs of shoes for $20 each. She used this expression to calculate the total amount she spent.
(5 × 20) + (3 × 20)
What is another expression to calculate the total amount spent?
A) (5 + 3) × 20
B) 5 × (20 + 3)
Eliminate
C) 5 × 20 × 3
D) (5 + 20) × (3 + 20)
The A) (5 + 3) × 20 is another expression to calculate the total amount spent
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Given that Cindy bought 5 dresses for $20 each and 3 pairs of shoes for $20 each. She used this expression to calculate the total amount she spent.
(5 × 20) + (3 × 20)
Multiply in the parentheses first
100 + 60
Now Add
= $160 total
Thus She spent $160 total
The A) (5 + 3) × 20 is another expression to calculate the total amount spent.
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NEED HELP!!!!!!!!!!!
Complete the inequality statement with the symbol that makes it true. 13.4 _____ 13.40 < > =
NEED HELP!!!!!!
The statement will be 13.4 = 13.40
What are inequalities?Inequality is a statement of an order relationship which are greater than(>), greater than or equal to(≥), less than(<), or less than or equal to(≤) between two numbers or algebraic expressions.
If there is an equal to (=) sign, then it is called an equation.How to complete the statement?We know that a zero after decimal will not make any change in the value.So, 13.4 is always equal to 13.4013.4 = 13.40
The sign will be ( = )
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Find missing part
Answer started below x=
Answer:
[tex]x=7.5[/tex]
Step-by-step explanation:
If you look at the large triangle, you will see that the side [tex]x[/tex] is opposite of 30° angle and the side 15 is opposite of 90° angle (side opposite of 90° angle is called the hypotenuse).
We have the angle, we have the side opposite and the hypotenuse. Which trigonometric ratio relates opposite side and hypotenuse? SINE!
So we use the sin ratio and cross multiply and solve for [tex]x[/tex]:
[tex]Sin(A)=\frac{Opposite}{Hypotenuse}\\Sin(30)=\frac{x}{15}\\x=15*Sin(30)\\x=15*(0.5)\\x=7.5[/tex]
Hence, [tex]x=7.5[/tex]
Answer:
a=3.75 un., b=11.25 un.
[tex]x=7.5\ un.[/tex]
[tex]y=\dfrac{15\sqrt{3}}{4}\ un.[/tex]
[tex]z=\dfrac{15\sqrt{3}}{2}\ un.[/tex]
Step-by-step explanation:
Given triangle is special 30°-60°-90° right triangle. The leg that is opposite to the angle of measure 30° is always equal to half of the hypotenuse. The hypotenuse is of length 15 units, the leg that is opposite to the 30° angle is leg with length of x units, then
[tex]x=\dfrac{15}{2}=7.5\ un.[/tex]
In right triangle with hypotenuse x and legs y and a, angle opposite to the leg a is 30°, then
[tex]a=\dfrac{x}{2}=\dfrac{7.5}{2}=3.75\ un.[/tex]
and
[tex]b=15-a=15-3.75=11.25\ un.[/tex]
By the Pythagorean theorem,
[tex]x^2=y^2+a^2,\\ \\7.5^2=3.75^2+y^2,\\ \\y^2=\left(\dfrac{15}{2}\right)^2-\left(\dfrac{15}{4}\right)^2=\dfrac{225}{4}-\dfrac{225}{16}=\dfrac{675}{16},\\ \\y=\dfrac{15\sqrt{3}}{4}\ un.[/tex]
In right triangle with legs y and b and hypotenuse z, leg y is opposite to 30° angle, then
[tex]z=2y=\dfrac{15\sqrt{3}}{2}\ un.[/tex]