we know that
To find out the fraction of a pan of brownies that was left subtract [tex]1\frac{1}{5}[/tex] from [tex]2[/tex]
remember that
[tex]1\frac{1}{5}=(1*5+1)/5=\frac{6}{5}[/tex]
so
[tex]2-\frac{6}{5} =(2*5-6)/5=\frac{4}{5}[/tex]
therefore
the answer is
the fraction of a pan of brownies that was left is [tex]\frac{4}{5}[/tex]
Solve the equation x2 = 10.
Answer:
[tex]\large\boxed{x=-\sqrt{10}\ or\ x=\sqrt{10}}[/tex]
Step-by-step explanation:
[tex]x^2=10\iff x=\pm\sqrt{10}[/tex]
The solution of the equation is x = ±3. 162.
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Parts of an Equation
There are different parts of an equation which include coefficients, variables, operators, constants, terms, expressions, and an equal to sign. When we write an equation, it is mandatory to have an "=" sign, and terms on both sides. Both sides should be equal to each other. An equation doesn't need to have multiple terms on either of the sides, having variables, and operators.
An equation can be formed without these as well, for example, 5 + 10 = 15. This is an arithmetic equation with no variables.
Given:
x² = 10
Now to solve the above equation we have to take the square root on both side, we get
√x² = √10
x= ±√10
x= ±3. 162 ( because root provides two values one is positive and other is negative)
Hence, the value of x is ±3. 162.
Learn more about equation here:
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Solve each equation f over 28=24
What is the area of this triangle? A= bh 2 12/13/5 is what it shows and here are the answers [A] 17 m2, [B] 30 m2, [C] 60 m2, [D] 60 m2, [E] 120 m2,
Given the information below, match the following items.
Given statement: If two angles add to 180°, then they are supplementary.
1.converse
2.inverse
3. contrapositive
If two angles are supplementary, then they add to 180°
If two angles do not add to 180°, then they are not supplementary. 3.contrapositive
If two angles are not supplementary, then they do not add to 180°.
Answer:
Converse- If two angles are supplementary, then they add to 180°
Inverse- If two angles do not add to 180°, then they are not supplementary.
Contrapositive- If two angles are not supplementary, then they do not add to 180°
Step-by-step explanation:
Find the area and the circumference of a circle with radius 2m. use the value 3.14, and do not round your answers. be sure to include the correct units in your answers.
Final answer:
The area of a circle with a radius of 2m is 12.56 m² and the circumference is 12.56 m when using 3.14 for π, with both answers having two significant figures due to the radius given with two significant figures.
Explanation:
The area (A) and the circumference of a circle with radius 2m can be found using the formulas A = πr² and C = 2πr. Using 3.14 as the value for π, the calculations would be A = (3.14)(2m)² = 12.56 m² for the area, and C = 2(3.14)(2m) = 12.56 m for the circumference. It is important to note that when performing calculations, the result should have the same number of significant figures as the quantity with the fewest significant figures used in the calculation.
If male and female college students work an average of 15 hours per week during the school year and the standard deviation is 5.4 for male students and 2.3 for female students, what may we conclude?
Answer: the male sample is more spread than the female sample
Step-by-step explanation:
The mean is the same for both genres, but the standard deviation form males is bigger than the one for females.
This means that the data of the male students is more spread than the female data (so there are more male students that study more hours, but there also are more male students that study less hours).
So the general conclusion is that the male sample is more spread than the female sample
Can anyone please help me I will give you 13 points and make your answer the brainliest.Please help.
The true statements are ...
2. All squares are rectangles.
3. Not all parallelograms are rectangles.
_____
The attached diagram shows the relationships between various quadrilataral types. The line connecting a lower box to a higher box means "all of the lower box is a higher box." For example, all square are rectangles, and all rectangles are parallelograms.
However, it is typical for a higher box to have several different lower boxes. That is "a higher box may be any of the list of lower boxes or none of them" For example, a parallelogram may be a rhombus or a rectangle or neither.
the sum of two numbers is -12 one number is 3 less than twice the other what is the bigger number
Which of the following are the coordinates of the vertex of y=-x^2+2x+1
Which of the following is a rational number? square root 97 square root 98, square root 99, square root 100
A.)square root 97
B.)square root 98
C.)square root 99
D.)square root 100
Answer:
d
Step-by-step explanation:
Jorge is standing at a horizontal distance of 25 feet away from a building. his eye level is 5.5 feet above the ground and looking up he notices a window washer on the side of the building at an angle of elevation of 65, how high is the window washer above the ground
If 12 is replaced with 3 in the following set, what will happen to the value of the range?
28, 45, 12, 34, 36, 45, 19, 20
It will increase.
It will decrease.
It will stay the same.
Your correct answer is A: it will increase.
Hope this helps. :)
Which statements are true?
Choose all answers that are correct.
A.
All quadrilaterals can be classified as either parallelograms or trapezoids.
B.
All rhombuses are parallelograms.
C.
Some trapezoids are parallelograms.
D.
Some parallelograms are squares.
Answer:
Step-by-step explanation:
B, C and D
What is the diameter of a circle that has an area of 452.16 mm 2? 144 mm 12 mm 24 mm 6 mm
Answer:
the diameter is 24
Step-by-step explanation:
Of the members of a student choir, 60% are boys. If there are 21 boys in the choir, how many members does the choir have in total?
Suppose there are x number of members in all.
Now we are given that 60% of these are boys.
So number of members who are boys = 0.6x
We are also given that there are 21 boys in the choir.
So making an equation ,
[tex] 0.6x =21 [/tex]
dividing both sides by 0.6,
x= 35
So there are total 35 members in the choir.
Jeremy goes to the store where he buys 18 bananas. After two days, he notices that there are only 10 bananas that are left. Which equation below would Jeremy use to find the percent of bananas that he has left?
A. 10/18 = 100/x
B. 18/10 = x/100
C. 5/9 = x/100
D. 10/18 = x/55.5
What are the zeros of the polynomial function f(x) = x3 – 4x2 – 12x
Camelle manages her soccer team. She needs to order 4 practice jerseys for each player. There are y players. How many total practice jerseys does she need to order?
Answer:
The required number of total practice jerseys does she need to order is '4y'.
Step-by-step explanation:
Given : Camelle manages her soccer team. She needs to order 4 practice jerseys for each player. There are y players.
To find : How many total practice jerseys does she need to order?
Solution :
Let the total practice jerseys does she need to order be 'x'.
According to question,
She needs to order 4 practice jerseys for each player.
Number of players are y.
So, Total jerseys she needs is
[tex]x=4\times y[/tex]
[tex]x=4y[/tex]
Therefore, The required number of total practice jerseys does she need to order is '4y'.
Your friend asks you to make picture frames and will give you 5 5 nickels for the first frame. You agree to help if she multiplies your payment by 5 5 for each frame completed. After 2 2 frames, you will receive 25 25 nickels, and after 3 3 frames, you will receive 125 125 nickels. What is the number of nickels for tenth frame?
To find the number of nickels for the tenth frame, we calculate 5 imes 5^9, which equals 9,765,625 nickels. This is a geometric sequence where the common ratio is 5, and the first term for the first frame is 5 nickels.
Explanation:The question asks about the payment received for making picture frames where the payment is multiplied by 5 for each subsequent frame. To find out the number of nickels for the tenth frame, we can use the concept of geometric sequences, where each term is found by multiplying the previous term by a common ratio. The common ratio in this case is 5.
For the first frame, you get 5 nickels. For the second frame, 5 multiplied by 5 is 25 nickels. To find the payment for the tenth frame, we multiply the payment of the first frame by the common ratio to the power of the frame number minus one: 5 imes 5^(10-1) = 5 imes 5^9.
Calculating 5 to the power of 9 gives us 1,953,125. Multiplying this by 5 gives us 9,765,625 nickels for the tenth frame.
Crystal charges a flat fee of $10 plus an additional $5 per hour to babysit given the situation what is the range
Answer:
perhaps $10 to $10,810
Step-by-step explanation:
We assume Crystal may be willing to babysit for a period of up to 3 months (90 days), so 90×24 = 2160 hours. Her hourly fee for that period will be ...
... (2160 hours) × ($5/hour) = $10,800
That amount added her $10 initial charge may represent the upper limit of her pay. The lower limit will be the $10 initial charge.
_____
Comment on the question
Since no upper limit on hours is given, we conclude the problem is not well-specified.
We can make a variety of different assumptions regarding the upper limit of babysitting time.
We might choose to consider this a daily charge, so the upper limit is $130 per day. We might consider that Crystal is willing to babysit while the child's parents are on a 2-week vacation. We might consider that Crystal is willing to babysit for the duration of her summer vacation from school (about 3 months). This is the assumption we use here.Find an equation for the nth term of the arithmetic sequence.
9, 11, 13, 15, ...
Answer Choices
A) an = 9 + 2(n - 1)
B) an = 9 + 2(n + 1)
C) an = 9 + 2
D) an = 9 + 2(n)
A bus travels 36 miles in 45 minutes enter the number of miles the bus travels in 60 minutes at this rate
Find the 29th term of the following sequence. 21, 15, 9, 3, . . .
Answer:
The correct answer would be -147
Step-by-step explanation:
I will give you brainliest.
simplify the ratio 120 cm / 1 m.
A 1 / 1
B 2/1
C 5 / 6
D 6 / 5
what is the measure of C?
Write 9.79 x 10^5 in standard notation
If 8 identical blackboards are to be divided among 4 schools, how many divisions are possible? how many if each school must receive at least 1 black- board?
To stay healthy, Kevin’s doctor says he should try to consume at most 2000 inequality to show the amount of calories Kevin should consume
A line and a plane are considered parallel if they have no points in common. True or False?
Select the situation in which one quantity is changing at a constant rate in relation to the other quantity.
a. Barry spends $9 on lunch daily.
b. The market value of a new computer decreases by 6% every year.
c. Nathan's investments increase in value by 13.5% each month.
d. The number of ants in a colony doubles every 8 weeks.
Answer:
A. Barry spends $9 on lunch daily.
Step-by-step explanation:
We are required,
To find the situation in which one constant is changing at a constant rate in relation to the other quantity.
So, according to the options, we have,
A. Barry spends $9 on lunch daily.
Let x= number of days and as the cost of lunch each day is $9
Then, the total cost of the lunch y, is [tex]y=9x[/tex]
Thus, this situation changes the variable with constant rate.
B. The market value of a new computer decreases by 6% every year.
Let, a= fixed initial value of the computer and x= number of years.
Since, the rate of decrease in value = 6% = 0.06
Then, the market value of the computer per year, y, is given by,
[tex]y=a(1-0.06)^x\\\\y=a(0.94)^x[/tex]
Thus, this situation changes the variable exponentially.
C. Nathan's investments increase in value by 13.5% each month.
Let, a= fixed initial investment and x= number of months.
Since, the rate of increase = 13.5% = 0.135
Then, the investment per month, y, is given by,
[tex]y=a(1+0.135)^x\\\\y=a(1.135)^x[/tex]
Thus, this situation changes the variable exponentially.
D. The number of ants in a colony doubles every 8 weeks.
Let, x= number of weeks where 'x' belongs to the se {1,8,16,24,...}.
Since, the number of ants is doubling every 8 weeks.
So, the number of ants in the colony, y, is [tex]y=2^x[/tex]
Thus, this situation changes the variable exponentially.
Hence, the situation that changes the variables with a constant rate is A.