Answers
Answer:
[tex]42a^{2}[/tex]
Step-by-step explanation:
Split them into sections!
First, [tex]3a[/tex] x [tex]5a[/tex] = [tex]15a^{2}[/tex]
Next, [tex](3a+3a+3a)(3a)[/tex] = [tex]9a[/tex] x [tex]3a[/tex] = [tex]27a^{2}[/tex]
Add [tex]15a^{2}[/tex] and [tex]27a^{2}[/tex] to get [tex]42a^{2}[/tex]
Hope I helped!
Related Questions
Graph the line that passes through the points (-4, 6) and (-8,5) and determine the equation of the line.
Answers
For this one you compare the difference between each point.
When x=-4 y=6
And when x=-8 y=5
So when x=0 y=7 therefore substitute c with 7
So y=mx+7
6=m x -4 +7
-1=m x -4
m=-1/4
Answer: y=-1/4x+7
The tide is the regular rising or falling of the ocean’s surface. This is due in large part to the gravitational forces of the moon. The following table represents water level of the tide off the coast of Kings Point, N.Y., for a 24 hour period, February 9th through February 10th of 2009.
Hour
Measurement in feet above the average low tide
0
-0.98
2
5.83
4
7.78
6
7.34
8
2.33
10
-0.47
12
-0.21
14
5.32
16
8.83
18
8.31
20
3.80
22
-0.28
24
0.53
Plot the data points given in the table using hour as the independent variable. Does this data indicate that a sine regression may be appropriate in this case? Explain.
a.
Yes, in the scatterplot the wavelike behavior is apparent although not precise.
b.
Yes, the scatterplot shows an increase over time.
c.
No, there is no correlation between the points.
d.
No, the scatterplot depicts a hyperbole.
Answers
Answer:
Option AStep-by-step explanation:
Points plotted.
See the graph attached.
Correct choice is:
A. Yes, in the scatterplot the wavelike behavior is apparent although not preciseOPTION A
#CcarryOnLearning
How many solutions does the system have?
You can use the interactive graph below to find the answer.
y = 3x + 3
y = -2x + 3
Choose 1 answer:
Exactly one solution
B
No solutions
Infinitely many solutions
Answers
Mieko has 4 times as many pencils as Holden. Holden has 8 pencils.
How many pencils, p, does Mieko have?
Answers
Answer:
meiko has 32 pencils
Step-by-step explanation:
8×4=32
Meiko has 32 pencils.
What is an equation?An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
Given that, Mieko has 4 times as many pencils as Holden. Holden has 8 pencils.
Let Mieko has x pencils,
Establishing the equation,
Therefore, according to question,
x = 4 × 8
x = 32
Hence, Mieko has 32 pencils
Learn more about equations, click;
https://brainly.com/question/29657983
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hayden and jamie completed 20 math problems together, jamie completed 2 more than twice the number that hayden completed. Let p represent the number of math problems hayden completed. Write an equation that can be used to find the number of math problems that jamie completed.
Answers
Answer:
2p+2+p = 20
Step-by-step explanation:
Let p represent the number of Math problems Hayden completed.
Let 2p+2 represent the number of Math problems Jamie completed.
Next, we have to add them together so that the total Math problems they completed will be equal to 20.
Let's solve.
2p+2+p = 203p+2 = 203p = 20-23p = 18p = [tex]\frac{18}{3}[/tex]p = 6Therefore, Hayden completed 6 Math problems.
Next, we have to get how many problems Jamie completed.
Let's solve.
2p+2 = ?2(6)+2 = ?12+2 = ?14Therefore, Jamie completed 14 Math problems.
Let's check.
2p+2+p = 2014+6 = 2020 = 20It's correct!
Can someone help me ASAP
Answers
Answer:
x= (-∞,∞)
Step-by-step explanation:
x could be any value and make this equation true
12+2x=12+2x
infinity many solutions
please help i’ll mark u
Answers
Answer:
4:12
4/12
4 to 12
Consider a student loan of $22,500 at a fixed APR of 9% for 30 years.
a. Calculate the monthly payment.
b. Determine the total amount paid over the term of the loan
c. Of the total amount paid, what percentage is paid toward the principal and what percentage is paid for interest.
a. The monthly payment is 5
(Do not round until the final answer. Then round to the nearest cent as needed.)
b. The total payment over the term of the loan is s
(Round to the nearest cent as needed.)
c. Of the total payment over the term of the loan, % is paid toward the placipal and % is paid toward interest.
(Round to the nearest tenth as needed)
Answers
Answer:
Lo averiguaste, lo siento, amigos míos, por haberlos ayudado. pero la respuesta es 456 $.
Step-by-step explanation:
Let C be the first quadrant portion of the circle of radius 3 centered on the origin. Find the line itegral for x^2+y^2 over C.
Answers
8. A drug and placebo were tested on 23 people each to study their effect on cholesterol. The mean cholesterol levels with the people on the new drug are 195 and SD of 35. The values for placebo sample are 245 and SD of 31. Using 5% level of significance, does the drug have effect on lowering the cholesterol.
Answers
Answer:
The drug have effect on lowering the cholesterol.
Step-by-step explanation:
H₀ : μ₁ - μ₂ = 0
⇒ H₀ : μ₁ = μ₂
H₁ : μ₁ - μ₂ < 0
⇒H₁ : μ₁ < μ₂
Now,
given , n₁ = 23 , n₂ = 23
∴ Degree of freedom = v = n₁ + n₂ - 2
= 23 + 23 - 2 = 44
⇒v = 44
Now,
Given, level of significance = 5% = 0.05
For the given significance level, critical time t = 1.68
As
Decision rule states that'if t < 1.68 , reject H₀
Now,
For Drug:
mean = m₁ = 195
SD = d₁ = 35
People = n₁ = 23
For placebo :
mean = m₂ = 245
SD = d₂ = 31
People = n₂ = 23
Now,
Variance = [tex]\frac{(23-1)35^{2} + (23-1)31^{2} }{23 + 23 - 2}[/tex] = 1093
Standard Deviation, S = 33.06
Point estimate = m₁ - m₂ = 195 - 245 = -50
Standard deviation error = S×([tex]\frac{1}{n_{1} } + \frac{1}{n_{2} }[/tex] ) = 9.75
Now,
Test statistics = [tex]-\frac{50}{\sqrt{9.75} } = -5.13[/tex]
⇒ t < 6.13
⇒Reject H₀
⇒The drug have effect on lowering the cholesterol.
Decide whether a discrete or continuous random variable is the best model for each of the following variables:
a. The time for a computer algorithm to assign an image to a category.
b. The number of bytes used to store a file in a computer.
c. The ozone concentration in micrograms per cubic meter.
d. The ejection fraction (volumetric fraction of blood pumped from a heart ventricle with each beat).
e. The fluid flow rate in liters per minute.
Answers
Answer:
a) Continuous
b) Discrete
c) Continuous
d) Continuous
e) Continuous
Step-by-step explanation:
Discrete variable:
Countable amounts(0, 1, 2, 3,...)
Continuous variables:
Can be decimal values.
a. The time for a computer algorithm to assign an image to a category.
Time can have decimal values, so continuous
b. The number of bytes used to store a file in a computer.
The number of bytes is never decimal, so discrete
c. The ozone concentration in micrograms per cubic meter.
Can be decimal value, so continuous
d. The ejection fraction (volumetric fraction of blood pumped from a heart ventricle with each beat).
Can be decimal value, so continuous
e. The fluid flow rate in liters per minute.
Can be decimal value, so continuous
plz help me. I'm confused on hw
Answers
Why: they have two equal sides makes by the dashes and two 90 degree angles in the same places on both triangles meaning that the other side next to the 90 degree angle had to be equal as will
Hope this helps :D
where is the most optimal position to send your bean bag in relation to opponent's bean bag?
Answers
Answer:
right side
Step-by-step explanation:
Build me a 100ft roller coaster ride using math?
Answers
In Dylan's grade, there are 80 students. Currently, 40% of them are enrolled in health. How many students are enrolled in health?
Answers
Please mark brainliest !
Answer:
32
Step-by-step explanation:
Convert 40 percent to a decimal, which is 0.4, then multiply 0.4 with 80 and you get 32.
use the sumilar triangles to find the value of the missing side b
Answers
16/24= 2/3
B= 6 X 2/3
= 4
Increase 60kg by 25%
Answers
Explanation:
The multiplayer for a 25% increase is 1.25
60kg x 1.25 = 75kg
The area of the cirle is: | I
10 in
Answers
Answer:
Step-by-step explanation:
diameter = 10 in
radius = 5 in
area = π5² = 25π ≅ 78.5 in²
Fill in the missing statements and reasons in the proof:
Answers
Answer:
2. definition of congruence
Step-by-step explanation:
sorry I just know that one
simplify
6x²+x-2/2x²+x-1
Answers
Answer:
[tex]5x^{2} +2x-1[/tex][tex]5x^{2}+2x-1[/tex]
Show me how to work this out please
Answers
Answer:
it's A
Step-by-step explanation:
the reason why it's A is that X can not have to repeating numbers
The prime factorization of a number is 3 x 4 x 4 x 4 x 7 x
7. What is the correct way to write this using exponential
notation?
Answers
Answer:
3 x [tex]4^{3}[/tex] x [tex]7^{2}[/tex]
Step-by-step explanation:
3(2x - 1) + 7 = -44 solve for x
Answers
Answer:
I love algebra anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
answer is x =-8
hope that helps^^
How do you covert 40% into a fraction ?
Answers
Answer:
2/5
Step-by-step explanation:
PLS, I NEED HELP! Translate this sentence into a compound inequality with math symbols.
Springfield’s monthly temperatures range from a high of 101o F to a low of – 8o F.
Answers
Answer:
8o F at least I'm pretty sure 101o F ≥ 8o
Step-by-step explanation:
Correct me If im wrong
ABC is a three digit number where each number represents a different digit. If A < C what is the greatest possible number?
Answers
Answer:
879
Step-by-step explanation:
Because C is greater than A, C has to be the largest possible number so that A can be as large as possible. because C is the largest possible number, which is 9, the next largest number is 8, which in this case is A. The next biggest number is 7 which is B.
To sum it all up, the number is 879.
Four friends go to dinner. Each chooses a different meal. When the check comes, they decide they will each pay the same amount. If the costs of the meals (including tax and tip) were $12.20, $11.00, $8.50, and $7.50, what should each friend pay so they cover the whole bill?
Answers
Answer: Each friend should pay $9.80
Step-by-step explanation: First add up all their checks, then divide them by 4 (4 because there 4 friends) to get the amount each friend needs to pay.
$12.20 + $11.00 + $8.50 + $7.50= $39.20
39.30 / 4 = $9.80
help pls i really need help
Answers
===========================================================
Explanation:
1/3 converts to the decimal form 0.333333... where the 3's go on forever
5/3 is a similar story but 5/3 = 1.666666.... where the '6's go on forever
The notation [tex]0.\overline{6}[/tex] indicates that the 6's go on forever.
So, [tex]0.\overline{6} = 0.666666\ldots[/tex]
The horizontal bar tells us which digits repeat. As another example, [tex]0.\overline{123} = 0.123123123123\ldots[/tex]
The three dots just mean "keep this pattern going forever".
----------
Everything mentioned so far has the decimal portions go on forever repeating some pattern over and over.
The only one that doesn't do this is 33% which converts to the decimal form 0.33
The value 0.33 is considered a terminating decimal since "terminate" means "stop". So this is the value that doesn't fit in with the other three items mentioned.
If y = 24 when x = 6, find y when x = -4 answer
Answers
Answer:
-16
Step-by-step explanation:
24/6 = y/-4
6y = -96 cross multiply
y=-16
Vertical Angles
Find the unknown angles.
i don't know how to do these help me understand please. its probably super easy just give a me a formula or something
Answers
Answer:
1. m<2 = 115 °
2. m<5 = 83 °
3. m<8 = 45 °
4. m<4 = 137 °
Step-by-step explanation:
1. Determination of m<2
m<1 = 115 °
m<2 =?
m<2 = m<1 (vertically opposite angles are equal)
m<2 = m<1
m<2 = 115 °
2. Determination of m<5
m<6 = 83 °
m<5 =?
m<5 = m<6 (vertically opposite angles are equal)
m<5 = m<6
m<5 = 83 °
3. Determination of m<8
m<9 = 45 °
m<8 =?
m<8 = m<9 (vertically opposite angles are equal)
m<8 = m<9
m<8 = 45 °
4. Determination of m<4
m<3 = 137 °
m<4 =?
m<4 = m<3 (vertically opposite angles are equal)
m<4 = m<3
m<4 = 137 °