Answer:
the answer is 7.83 it's not rounded though
Find the perimeter and area of the following rectangle
Step-by-step explanation:
A = 12x^3y^2
P = 2(4x^2y+3xy)
What is the area of the circle above?
Answer:
201.6
i think
Answer: I am pretty sure its A
Step-by-step explanation:
Each day a carwash used 4.70 liters of soap. After 2 days,
how much soap would they have used?
Answer:
9.40L
Step-by-step explanation:
Ryan drinks 1 1/2 liters of water every 3/4 of an hour at a constant rate. How many liters of water does Ryan drink in one hour
Answer:
2 litres of water
Step-by-step explanation:
If Ryan drinks 1 1/2 liters of water every 3/4 of an hour at a constant rate, this can also be expressed as;
1 1/2 litres = 3/4 hour
To get the amount of litres Ryan drank for 1 hour
x = 1 hour
Divide both equations
(3/2)/x = (3/4)/1
3/2x = 3/4
2x * 3 = 3 * 4
6x = 12
x = 12/6
x = 2
Hence Ryan drinks 2 litres of water in an hour
Can somebody help me
Answer:
its d
Step-by-step explanation:
Write down two expressions for the
perimeter of this shape, one with
brackets and one without
[ + 7
P (with brackets)
P (without brackets) =
Answer:
Perimeter with brackets is: [tex]\mathbf{Perimeter = (t+7)+(t+7)+(t+7)+(t+7)}[/tex]
perimeter without brackets is:
[tex]\mathbf{Perimeter = 4t+28}[/tex]
Step-by-step explanation:
We need to write two expressions for the perimeter of given shape, one with brackets and one without.
Length of side of shape = t+7
The formula used to find perimeter is: [tex]Perimeter = Sum\: of\: all\: sides[/tex]
Since the shape has 4 sides, we get:
[tex]Perimeter = Sum\: of\: all\: sides\\Perimeter = (t+7)+(t+7)+(t+7)+(t+7)[/tex]
So, perimeter with brackets is: [tex]\mathbf{Perimeter = (t+7)+(t+7)+(t+7)+(t+7)}[/tex]
Now, finding perimeter without brackets:
[tex]Perimeter = (t+7)+(t+7)+(t+7)+(t+7)\\Perimeter = t+7+t+7+t+7+t+7\\Combining\:like\:terms:\\Perimeter=t+t+t+t+7+7+7+7\\Perimeter=4t+28[/tex]
So, perimeter without brackets is:
[tex]\mathbf{Perimeter = 4t+28}[/tex]
c) Which of these numbers is a square number
A
4 x 10^5
B
9 x 10^4
C
4 x 10^3
D
9 x 10^3
9514 1404 393
Answer:
B. 9 x 10^4
Step-by-step explanation:
The square number will be a square multiplied by 10 to an even power. Only one choice has an even power of 10.
9 x 10^4
determine the standard form of the equation of the line that passes through (6,0) and (2,-7). (-7x-4y=-42) (7x-4y=42) (-7x+4y=42) (4x+7y=-42)
Answer:
[tex]7x - 4y = 42[/tex]
Step-by-step explanation:
Given
[tex](x_1,y_1) = (6,0)[/tex]
[tex](x_2,y_2) = (2,-7)[/tex]
Required
Determine the equation in standard form
First, calculate the slope (m) using:
[tex]m = \frac{y_2 -y_1}{x_2 - x_1}[/tex]
This gives:
[tex]m = \frac{-7 -0}{2 - 6}[/tex]
[tex]m = \frac{-7}{-4}[/tex]
[tex]m = \frac{7}{4}[/tex]
The equation in standard form is calculated using:
[tex]y - y_1 = m(x - x_1 )[/tex]
This gives:
[tex]y - 0 = \frac{7}{4}(x - 6)[/tex]
[tex]y = \frac{7}{4}(x - 6)[/tex]
Cross Multiply
[tex]4y = 7(x - 6)[/tex]
Open bracket
[tex]4y = 7x - 42[/tex]
Subtract 7x from both sides
[tex]-7x + 4y = 7x - 7x - 42[/tex]
[tex]-7x + 4y = - 42[/tex]
Multiply through by -1
[tex]-1(-7x + 4y) = - 42*-1[/tex]
[tex]7x - 4y = 42[/tex]
Find cos θ for θ = 45°
Answer:
[tex] \cos( \theta) \\ \cos(45) = \cos( \frac{\pi}{4} ) \\ = \frac{1}{ \sqrt{2} } \\ or \\ = \frac{ \sqrt{2} }{2} [/tex]
the word at the end says equation
Answer:
V=9
Step-by-step explanation:
9 times 3 equals 27 and that's how I got 9
Which equation represents a proportional relationship?
It takes 60 cubic feet of sand to fill a sandbox. The length and
width of the sandbox are 5 feet and 6 feet. What is the height
of the sandbox
Answer: 2 feet tall
Step-by-step explanation: 5*6=30/60=2
Evaluate 6x-4y when x=5and y=2
Answer:
22
Step-by-step explanation:
6×5 and 4×2 then subtract
Answer:
30-8=22
Step-by-step explanation:
6*5-4*2
30-8
22
What combination of transformations is shown below?
Answer:
Rotated then reflected.
Step-by-step explanation:
Caleb invested $390 in an account paying an interest rate of 7% compounded
quarterly. Autumn invested $390 in an account paying an interest rate of 7%
compounded continuously. After 15 years, how much more money would Caleb have
in his account than Autumn, to the nearest dollar?
Answer:
$9
Step-by-step explanation:
DELTAMATH
pita has 12 coins in her bag there are three £1 coins and nine 50p coins she takes 3 coins from the bag at random work out theprobability that she takes exactly £2.50
Answer:
3 x 3/12 x 2/11 x 9/10
Step-by-step explanation:
help now plsssss!!!!!!!
Four integers have a mean of 12, a median of 14, a mode of 14 and a range of 12.
Find the four integers.
Answer:
4, 14, 14, 16
Step-by-step explanation:
Key skills needed: Casework, Mean, Median, and Mode
1) We start with 4 numbers _ _ _ _
2) We can determine two of the numbers by using the fact that the median is 14 and the mode is 14.
3) The numbers would have to be:
_ 14 14 _ _ 14 14 14The 2nd one does not work because the last number would have to be a 6 to have a mean of 12, but the range would not be 12.
4) So, our numbers are _ 14 14 _
5) The two numbers add up to 20 (in order to have a mean of 12. If you subtract the bigger one by the smaller one, it will be 12.
6) We can make a system: saying x is the bigger number and y is the smaller number.
x + y = 20
x - y = 12
Add both and you will get 2x = 32 (since the y values cancel out).
7) divide by on both sides, and x = 16.
8) To find y, we can plug x back in to one equation:
16 + y = 20
y = 4
Our smaller number is 4 and our bigger number is 16.
9) Therefore the numbers are: 4, 14, 14, 16
Hope you understood and have a nice day!! :D
Maya's new puppy weighs 4 pounds . He will gain an average of 2 pounds each month until reaches his adult weight Which equation can be used to predict his total weight t after m months?
Answer:
4 + 2t = m
Step-by-step explanation:
Answer:
i think it t=2m
so sorry if im wrong i tried
Step-by-step explanation:
1+4(3x10)-12x equal to -9?And how do you get the answer pls
Answer: 1+4(30)-12x
1+4*30- 12*x X is equal to 1 so 12x Will be 12
1+4*30-12
5*30-12
150-12
138 so not it dosen't equal 9
Step-by-step explanation: do PEMADS please excuse my dear ant saly
Ben purchases 16 tickets at the fair . Each ride requires 2 tickets, and each food item requires 1 ticket. If ben uses 4 tickets for food iteems, what is the mazimum number of rides he can go on if he uses all of his tickets
The graph of a system of linear equations with the same slope and the same y-intercepts will have no solutions.
Always
Sometimes
Never
Answer:
Never
Step-by-step explanation:
If two equations have the same slopes and the same y-intercepts they are equivalent to each other
Here's why:
The formula for a linear equation is y= mx +b
b= y- intercept
m= slope
m and b are only variable that have to be replaced by a number for the equation to be complete
Therefore, when m and b (or the slope and the y-intercept) of both equations are the same, the two equations are the same
The answer would be allrealnumbers, not nosolutions
Hope this helps!!!
y=-x^2+10x-23 in vortex form
How Do I simplify this?
-3(x + 4y) + 2(x - 2y) + (3x -5y)
Answer:
=2x - 21y
Step-by-step explanation:
One step at a time
-3(x + 4y) = -3x - 12y
2(x - 2y) =2x - 4y
=-3x - 12y + 2x - 4y + 3x -5y
=2x - 21y
Answer these quick and easy questions I cant get my head around
1. There are 26 letters in the alphabet. Only one of those letters is A. Thus, the probability of picking A is 1/26.
2. Out of the 26 letters, two are either A or B. Thus, the probability would be 2/26, or 1/13.
3. 1/26 letters in the alphabet are Z thus there is a 1/26 probability in picking this letter.
4. There are 5 vowels in the alphabet. Thus, the probability would be 5/26.
5. There are 21 consonants in the alphabet, thus the probability of selecting a consonant fron the alphabet would be 21/26.
6. 4/26, as there are 4 unique letters from the alphabet in the name Bryn.
7. 8/26, as there are 8 letters before I in the alphabet.
8. 5/26 because there are 5 letters in the alphabet following the letter U
9. 11/26 because there are 11 letters between I and U.
10. 0/26 because there are no numbers in the alphabet.
the equation is solved. describe the property used in each solution.
Answer:
Step-by-step explanation:
1. multiplication property of equality.
2.division property of equality.
Write the exponent for the expression.
1/9 x 1/9 x 1/9=?
HELP FAST plz
Step-by-step explanation: To find the exponent, we look at the expression again and see how much of the same number or fraction is repeated. Since the main number is 1/9 and there are 3 fractions repeating it, the exponent is [tex]\frac{1}{9} ^3[/tex] or 1/9 to the 3rd power.
Down is a formula I made!
Main number: 1/9
Repeating how many times: 3
Expression: [tex]\frac{1}{9} ^3[/tex]
Therefore, 1/9 to the 3rd power is 1/729.
[tex]\frac{1}{9}^3=\frac{1}{729}[/tex]
Note: The questioner did not ask for the answer. I wanted to add it anyway for future reasons.
Use Pythagorean theorem to solve for x
Answer:
339.7705
Step-by-step explanation:
Colton made fancy purple costume decorations for each of the 5 dancers in his year-end
dance performance. He cut 1/2 of a yard of ribbon into equal pieces to make the decorations.
How long was each piece of ribbon?
0.1 or 1/10 yards
So we know that Colton cut 1⁄2 of a yard of ribbon into equal pieces to make the decorations so what we can do is take that 1⁄2 and divided by 5 because we know that there are 5 dancers at his year end dance performance.
1⁄2 in a decimal form is 0.5 so 0.5 divided by 5 equals 0.1 or 1/10.
A biologist estimated that the current population of ladybugs in the region was 8.3 x 106. He predicts that a swarm of
950,000 ladybugs will be arriving into the region.
According to the biologist's estimates, how many ladybugs will be in the region after the swarm arrives? math
According to the biologist's estimates, there will be 9.25 million ladybugs in the region after the swarm arrives.
How many ladybugs will be in the region after the swarm arrives?To find the total population of ladybugs in the region after the swarm arrives, we need to add the number of ladybugs in the region before the swarm arrives to the number of ladybugs in the swarm:
Total ladybugs = 8.3 x 10⁶ + 950,000
Total ladybugs = 8,300,000 + 950,000
Total ladybugs = 9,250,000
Therefore, according to the biologist's estimates, there will be 9.25 million ladybugs in the region after the swarm arrives.
Learn more about total population here: https://brainly.com/question/13902749
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