Help please, i dont know i tried.
A sapling, or young tree, is planted in a garden. After 3 years, it is 180 cm tall. After 7 years, it is 368 cm tall. How tall will the tree be after 10 years?
A gram of gasoline produces 45.0kj of energy when burned. gasoline has a density of 0.77/gml . how would you calculate the amount of energy produced by burning 46.l of gasoline? set the math up. but don't do any of it. just leave your answer as a math expression. also, be sure your answer includes all the correct unit symbols.
To calculate the amount of energy produced by burning 46.1 mL of gasoline, you can use the formula: Amount of energy = (Density of gasoline) x (Volume of gasoline) x (Energy produced per gram). Plug in the values and include the correct unit symbols (g/mL, mL, kJ) in your answer.
Explanation:To calculate the amount of energy produced by burning 46.1 mL of gasoline, you can use the following formula:
Amount of energy = (Density of gasoline) x (Volume of gasoline) x (Energy produced per gram)
Plugging in the values:
Amount of energy = (0.77 g/mL) x (46.1 mL) x (45.0 kJ/g)
This gives us the math expression:
Amount of energy = 0.77 x 46.1 x 45.0 kJ
Make sure to include the correct unit symbols (g/mL, mL, kJ) in your answer.
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A number is multiplied by 4, and then 6 is added to the product. The result is 18. What is the number? I already know that the answer is 3 but I have to check my answer. How do I check it?
The student can check the accuracy of their answer by substitifying their solution back into the equation. If both sides of the equation are equal after the substitution, then the solution is correct and 4 * 3 + 6 does in fact equal 18 in this case.
Explanation:The subject of your question is to solve a simple equation and you want to check your answer. The equation you're talking about can be expressed as 4x + 6 = 18, where x is the number you're trying to find. You said you believe x = 3, and we can check that by substituting 3 for x in the equation and seeing if both sides match.
On the left side of the equation, 4x + 6 would become 4 * 3 + 6, which equals 12 + 6 = 18. The right side of the equation is also 18, so your answer of x = 3 is correct!
Substituting your answer back into the equation is a solid strategy to check your answers in mathematics.
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Is 70 thousand written in standard form or word form ? Explain
Given that 41 to the second power= 1681 find the square of 410
The square of any number is simply that number multiplied by itself. Thus the square of 410 is 410 multiplied by 410, which equals 168100.
Explanation:The concept being asked here is the squaring of exponentials. 'To square' a number encompasses multiplying that number by itself. Hence 41 to the second power, or 41 squared, equals 1681 as the question states. By the same logic, to find the square of 410, we would multiply 410 by itself. That calculation will give the result as 168100. The square of 410 is 410 multiplied by 410, which equals 168100. Thus, the square of 410 equals 168,100.
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Tayler has $320 to pay for dining room chairs. She expects to pay about $80 per chair. Her friend told her that she has 3 that Taylor can have for free. Complete the equation below to find the total number of chairs that Taylor can get for her dining room. Use c to represent the total chairs
A turtle walking at an average speed of 3/10 mile per hour takes 13/20 hour from its home how long will take if the turtle doubles its average speed
(3ft = 1yard) how many yards are in 81 feet ?
Please help! #20] math problem is with photo. (Math) (10 points)
Answer:
25 mins
Step-by-step explanation:
The expression below shows the population of squirrels in a forest after 3x years: f(x) = 30(1.03)3x Which of the following is an equivalent function?
Identify any solutions to the system given below.
2x + y = 5
3y = 15 – 6x
A(6, –7)
B(2, 1)
C(–2, –9)
D(–4, 13)
Answer: The system of equations have many solutions and the correct options are A,B and D.
Explanation:
The given equations are,
[tex]2x+y=5[/tex] ..... (1)
[tex]3y=15-6x[/tex] .... (2)
Simplify the second equation.
[tex]3y+6x=15[/tex]
[tex]3(y+2x)=15[/tex]
Divide both sides by 3.
[tex]2x+y=5[/tex]
It is same as equation (1). Since equation (1) and (2) are same, therefore all the points lies on the line or which satisfies the equation are the solution of the given system of equations.
Test the points whether the point lies on the line or not.
Check for point A(6,-7).
[tex]2(6)+(-7)=5[/tex]
[tex]5=5[/tex]
LHS and RHS are equal, therefore the point A is the solution of the system of equations.
Check for point B(2,1).
[tex]2(2)+(1)=5[/tex]
[tex]5=5[/tex]
LHS and RHS are equal, therefore the point B is the solution of the system of equations.
Check for point C(-2,-9).
[tex]2(-2)+(-9)=5[/tex]
[tex]-13=5[/tex]
LHS and RHS are not equal, therefore the point C is not the solution of the system of equations.
Check for point D(-4,13).
[tex]2(-4)+(13)=5[/tex]
[tex]5=5[/tex]
LHS and RHS are equal, therefore the point D is the solution of the system of equations.
Therefore the options A,B and D are correct.
The points (6, –7), (2, 1), and (–4, 13) satisfies the equation and hence, will be the solution of the equation. The correct solution for this system is A, B, and D.
Given:
The given system of linear equations is,
[tex]2x + y = 5\\3y = 15 - 6x[/tex]
Equate the y coefficient of the equations and write them as,
[tex]6x + 3y = 15\\6x+3y = 15[/tex]
The given system of equation is the same equation and hence, will have infinite solutions.
Now, the solution of equation from the given options can be found by putting each point in the equation and checking for its satisfaction of the equation.
So, try All the points given. Point A(6,-7) Where x=6, y=-7
Put in equation.
[tex]-7+2(6)=5\\-7+12=5\\5=5[/tex]
Hence LHS=RHS
Point B(2,1), Where x=2, y=1
Put in equation.
[tex]1+2(2)=5\\1+4=5\\5= 5[/tex]
Hence, LHS= RHS
Point C(-2,-9), Where x=-2, y=-9
Put in equation.
[tex]-9+2(-2)=5\\-9-4=5\\-13\neq 5[/tex]
Hence LHS[tex]\neq[/tex]RHS
Point D(-4,13)
Where x=-4, y=13
Put in equation.
[tex]13+2(-4)=5\\13-8=5\\5=5[/tex]
Hence, LHS= RHS
Therefore, points (6, –7), (2, 1), and (–4, 13) satisfies the equation and hence. will be the solution of the equation.
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Given a = -3, b = 5, and c = -8, then a 2 b + c is _____.
I thought it was -53 after doing PEMDAS, but I got it wrong. Any help would be appreciated!
Answer:
the answer is 22
Step-by-step explanation:
because -3 is squared and that equals 6 and 6 times 5 equal 30 minus-8 equal 22
Different rose bushes are grown in a g reenhouse for two months. The number of flowers on each bush is counted at the end of the experiment
. 1. Independent Variable ________________________________________________________________________________
2. Dependent Variable ________________________________ ________________________________________________
3. Control Variable ________________________________________________________________________________
Which of the following is an example of function notation?
A.Distance + time = 800
B.Distance x time = 800
C.Distance/time = 800
D.Distance(time) = 800
what is 1/7+ x = 2/3x
the product of x and 5.2 is 104. Find the value of x
If product of x and 5.2 is 104 then the value of x is 20.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Given that product of x and 5.2 is 104
We have to find the value of x
product of x and 5.2 is 104 can be mathematically written as below
5.2x=104
To find value of x
divide both sides by 5.2
x=104/5.2
x=20
Hence, if product of x and 5.2 is 104 then the value of x is 20.
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ritz can eat 8 apples in 15 minutes . how long can it take him to eat 16 apples at the same rate
Simplify the expression
What is 77,098 rounded to the nearest thousand
Please help me out here
The price of a gallon of unleaded gas has dropped to $2.83 today. Yesterday's price was $2.90 . Find the percentage decrease. Round your answer to the nearest tenth of a percent.
Answer:
The answer is 2.4%
Step-by-step explanation:
Circle the ways to write the number shown by the model 4 tens 6ones 40+6 64 6 tens 4 ones 60+4ones 46
Applying Place values, the ways to write the number shown by the model are 40+6, 64, and 6 tens 4 ones.
Explanation:40+6: In this representation, the tens digit (40) is added to the ones digit (6), resulting in the number 46.64: This representation directly shows the number with a tens digit of 6 and ones digit of 4.6 tens 4 ones: This representation specifies the number of tens and ones, with 6 tens and 4 ones making up the number 64.Learn more about Place values and Addition here:
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you want to buy a bouquet of yellow roses and baby's breath for $16.the baby's breath costs $3.50 per bunch,and the roses cost $2.50 each.you want one bunch of baby's breath and some roses for your bouquet.how many roses can you buy?
After subtracting the cost of one bunch of baby's breath ($3.50) from the total budget ($16), you have $12.50 left for the roses. Since each rose costs $2.50, you can buy 5 roses to complete your bouquet within the budget.
To calculate the number of roses that can be bought, first, we need to subtract the cost of one bunch of baby's breath from the total budget for the bouquet. The cost of one bunch of baby's breath is $3.50. With a total budget of $16, we subtract the cost of baby's breath to see how much is left for the roses:
$16.00 - $3.50 = $12.50
Since each rose costs $2.50, we will divide the remaining budget by the cost of each rose to find out the number of roses that can be purchased:
$12.50 / $2.50 = 5 roses
Therefore, you can buy 5 roses along with one bunch of baby's breath to make up your $16 bouquet.
Calculate the volume of the cylinder. Round your answer to nearest hundredth. 2cm is the radius and 6cm is the height
Solve for x
3j = 4kx + 7mx + n
Answer:
[tex]x=\frac{3j-n}{4k+7m}[/tex]
Step-by-step explanation:
We have the expression [tex]3j=4kx+7mx+n[/tex] and we have to solve for x, this means that we have to clear x.
Then first we are going to subtract n in both sides of the equation,
[tex]3j=4kx+7mx+n\\3j-n=4kx+7mx+n-n\\3j-n=4kx+7mx[/tex]
Now in the right side we can apply common factor x.
[tex]3j-n=(4k)x+(7m)x\\3j-n=x(4k+7m)[/tex]
For the last step divide both sides of the equation in (4k+7m),
[tex]3j-n=x(4k+7m)\\\\\frac{3j-n}{4k+7m}=\frac{x(4k+7m)}{(4k+7m)} \\\\\frac{3j-n}{4k+7m}=x[/tex]
Then,
[tex]x=\frac{3j-n}{4k+7m}[/tex]
Ellen has 60 feet of craft wire she plans to cut it into pieces that are 3 meters long what is the greatest number of 3 meter prices Ellen can cut
ms nickel has a jar of candy on her desk.jessica thinks there are 3,498 piece of candy in the jar there are actually 4,182 pieces.what is the difference between jessica's guess and the actual number of pieces of candy?
12 bars of soap for $10.00 or 5 bars of soap for $4.00
To determine which package is a better deal, we need to compare the price per bar of soap for each package. The second package is the better deal as it has a lower price per bar of soap.
Explanation:The question is asking about the comparison of two different packages of soap based on their price and quantity. To determine which package is a better deal, we need to calculate the price per bar of soap for each package.
For the first package, we have 12 bars of soap for $10.00. To find the price per bar, we divide the total cost by the number of bars: $10.00 ÷ 12 = $0.83 per bar.
For the second package, we have 5 bars of soap for $4.00. Again, we divide the total cost by the number of bars: $4.00 ÷ 5 = $0.80 per bar.
Comparing the prices per bar, we can see that the second package is cheaper, so it is the better deal.
Calculate the mass of a 5.50 cm3 cylinder of a substance that has a density of 4.20 g/cm3.
Final answer:
The mass of the 5.50 cm³ cylinder of a substance with a density of 4.20 g/cm³ is 23.10 g.
Explanation:
To calculate the mass of the cylinder, you can use the formula: Mass = Density x Volume.
Given that the density of the substance is 4.20 g/cm³ and the volume of the cylinder is 5.50 cm³, you can substitute these values into the formula to find the mass.
Mass = 4.20 g/cm³ x 5.50 cm³ = 23.10 g.
The mass of the cylinder with a volume of 5.50 cm³ and a density of 4.20 g/cm³ is calculated using the formula Mass = Density × Volume, which results in a mass of 23.1 grams.
Explanation:To calculate the mass of a cylinder of a substance when the volume and density are known, use the formula:
Mass = Density × Volume
Given that the density of the substance is 4.20 g/cm³ and the volume of the cylinder is 5.50 cm³, we can substitute these values into the formula:
Mass = 4.20 g/cm³ × 5.50 cm³
Mass = 23.1 g
The mass of the substance is 23.1 grams. It's important to note that the result should be reported with the appropriate number of significant figures. The original volume was given to three significant figures, so the final answer should also reflect three significant figures.