Answer:
a = 9
Step-by-step explanation:
First we need to add (x^2+3x) to (3x^2+ax),
(x^2+3x)+(3x^2+ax)
Expand
= x^2+3x+3x^2+ax
Collect the like terms
= x^2+3x^2+3x+ax
= 4x^2 + 3x + ax
= 4x^2+(3+a)x
Equate the solution to 4x^2+12x
4x^2+(3+a)x = 4x^2+12x
Comparing the like terms on both sides
(3+a)x =12x
3 + a = 12
a = 12 - 3
a = 9
Hence the value of a is 9
Given an = 3n-5, what is the common difference?
Answer:
3
Step-by-step explanation:
A common difference is found in arithmetic sequences. The simplified formula for arithmetic sequences, which is what is used here, is [tex]a_{n}=dn-a_{0}[/tex]. Where d is the common difference and [tex]a_{0}[/tex] is the zeroth term. So, in the given equation 3 must be the common difference.
whats the measure of angle E ?
Answer:
57degrees
Step-by-step explanation:
The triangle is an isosceles triangle, hence m<D = m<E (base angles are equal)
Taking the sum of the angles and equating to 180
5x-4 + 4x+1 + 4x+1 = 180
5x+4x+4x-4+1+1 = 180
13x - 2 = 180
13x = 180 + 2
13x = 182
x =182/13
x = 14
Get m<E
m<E = 4x+ 1
m<E = 4(14)+ 1
m<E = 56+1
m<E = 57degrees
Hence the measure of m<E is 57degrees
If AABC = APQR, then
AB =
Help please
Answer:
PQ should be the answer
Step-by-step explanation:
The length of a rectangle is 1 meter less than twice its width. The perimeter of the rectangle is 40 meters. What are the dimensions of the rectangle?
What is the greatest common factor of 12a and 9a2?
9
36
3a
12a2
Answer:
3a
Step-by-step explanation:
the common factors are what make up the terms. 12a is divisible by 3a
9a^2 is divisible by 3a
12a/3a = 4
9a^2/3a
(9a × 9a) / 3a = (9a × 3)
The greatest factor of both 12a and 9a² is; C: 3a
What is the Greatest Common Factor?
We want to find the greatest common factor of 12a and 9a². Now, let us first list the factors of both expressions;
Factors of 12a are; a, 1, 2, 3, 4, 6, 12, 1a, 2a, 3a, 4a, 6a, 12a
Factors of 9a² are; 1, 3, 9, 1a, 3a, 9a
The greatest factor that is common to both 12a and 9a² is 3a
Read more about Greatest common factor at; https://brainly.com/question/219464
1/6-9/8 as a fraction in simplest form
You pick a card at random. 6 7 8 9 What is P(not 9)? Write your answer as a percentage. %
Answer:
75%
Step-by-step explanation:
You pick a card at random. 6 7 8 9 What is P(not 9)? Write your answer as a percentage. %
Given the following
Total cards = 4 (6,7,8,9)
If the card is not 9, the required card will be (6,7,8)
Number of cards that are not 9 is 3
Probability = expected/total
Pr(not 9) = 3/4
express as percent
Pr(not 9) = 3/4×100
Pr(not 9) = 75%
Answer:
50%
Step-by-step explanation:
There are 4 cards, numbered 6, 7, 8, and 9. The numbers greater than 7 are 8 and 9. There are 2 numbers greater than 7.
P(greater than 7) =
2
4
Write your answer as a decimal. Then convert your answer to a percentage.
2
4
= 0.5 = 50%
P(greater than 7) = 50%
Lila collected rain water for three days. On the first day she collected 23 liter of rain water. The last two days yielded 14 liter each how much did lila collect in all
Answer:
47 liter 14+14+23
Step-by-step explanation:
14+14+23=47
Answer:
the awnsers 51
Step-by-step explanation:
you do (14x2)=28+23=51
1) a) What are perpendicular lines and parallel lines
Answer:
the property of being perpendicular is the relationship between two lines which meet at a right angle.
parallel lines are lines in a plane which do not meet; that is, two straight lines in a plane that do not intersect at any point are said to be parallel.
Easy question and answer 15 points uh huh uh huh!!!
Answer: they are equal because the exponents are equal. Right there are in different order but they are still the same.
Step-by-step explanation:
PLSSSS HELPPPP 30 POINTSSSS
Jaylon spent $27.60 of the $80 he got for his birthday. What percent of his money did spends
Answer:
35.4%
Step-by-step explanation:
(100/80) x 27.6
basically 1 of 80 is 1.25 and multiply 1.25 times the money jaylon spent sorry i am really bad at explaining only good at solving
Answer:
34.5%
Step-by-step explanation:
to find the percent of money that was spent, you turn it into a fraction-
27.60/80
=0.345
then to get the percent you multiply-
0.345*100
=34.5%
good luck :)
i hope this helps
brainliest would be highly appreciated
have a nice day!
Given that 3x : 8 = 9 :2 , find the value of x .
Answer:
i hope you understand this answer
[tex]3x : 8 = 9 : 2[/tex]
[tex] \frac{3x}{8} = \frac{9}{2} [/tex]
[tex]3x × 2 = 8 × 9[/tex]
[tex]3x = \frac{8 \times 9}{2} [/tex]
[tex]3x = 4 \times 9[/tex]
[tex]x = \frac{4 \times 9}{3} [/tex]
[tex]x = 4 \times 3[/tex]
[tex]x = 12[/tex]
can any on help me plz
Answer:
C
Step-by-step explanation:
Answer:
x-0.25 is the answer for the above expression
What is a correct name for the angle shown? R S T O LE O ZS O LEITE O LEFT
Answer:
RTS.
Step-by-step explanation:
This is an obtuse angle.
5. Write two fractions that are equivalent to
10. Describe how you can show they are
equivalent.
Answer:
equivilent to what?
Step-by-step explanation:
Express y in terms of x
Answer:
y = 3x
Step-by-step explanation:
to get y we multiply x by 3 so we have that y = 3x.
Triangle ABC has vertices with coordinates -1,-1 , 4,0 and 0,4 Prove that ABC is an isosceles triangle but not a right triangle.
Lol can someone write me a haiku, it’s a poem with 3 lines. The first line needs 5 syllables the second 7 and the last 5 again. Wrote about anything pls LOLLL
Answer:
The flowers wither
Bean etch the weight of the sun
Yet the weeds stand proud
Hope you like it, Its weird I find Haikus cringed but Have a good day! =)
smell of salt water
as waves break over the bow
Bright yellow happy!
Hope this helps!
what is the value of x in this equation??
50+30x=250+10x
Answer:
x = 10
Step-by-step explanation:
What is the measurement of Angle x?
Answer:
A. 95 degrees
Step-by-step explanation:
Both angles should add up to 180
85+_95_=180
I will mark Brainliest just help meee
Answer:
h
Step-by-step explanation:
Answer:
G
Step-by-step explanation:
Function G
in the formula
y=mx+b
B is also a way to find the y intercept
in function G the y-intercept is 6
and in the graph the y-intercept is 4
6 is greater than 4 so
Function G is larger
What is the median and the modes?
Answer:
La mediana es el valor medio cuando un conjunto de datos se ordena de menor a mayor. La moda es el número que se presenta con más frecuencia en un conjunto de datos.
Step-by-step explanati_:espero
ayudar:)
A graph of a system of two equations is shown.
What is the solution of the system? HELP!!!!!
Answer:
can you just mark me brainleyest.
Step-by-step explanation:
A map scale is 2 in : 15 mi. Two cities are 5.7 in. apart on the map. Find the actual distance between the two cities. Enter the number only.
Answer:
70!km is the right answer
Step-by-step explanation:
The distance between two cities on a map is 3.5 centimeters. the map is uses a scale in which 1 centimeters represents 20 kilometers.
A cylindrical water towers has a diameter of 15 meters and a height of 5 meters. About how many gallons of water can the gallon contain?
Answer:
233445.54 gallons
Step-by-step explanation:
Given data
Diameter= 15m
Radius= 7.5m
Height= 5m
Let us first find the volume
the volume of a cylinder is given as
V= πr^2h
substitute
V= 3.142*7.5^2*5
V= 3.142*56.25*5
V=883.6875 m^3
Hence the volume in gallons is
233445.54 gallons (from conversion tables)
An adult ticket to the school play cost $14.75. A child ticket cost $5.25. Mr. Montes bought 2 adult tickets and 4 child tickets.
Answer:
$50.50
Step-by-step explanation:
From the above question, we are to find the total cost of the tickets Mr Montes bought
An adult ticket to the school play cost $14.75.
A child ticket cost $5.25.
Mr. Montes bought 2 adult tickets and 4 child tickets.
Hence, the total cost is
= 2 × $14.75 + 4 × 5.25
= $29.5 + $21
= $50.50
Ella (E) is 4 years older than her friend Ava (A) who is 3 years younger than her sister
Sofia (S). If E, A and S denote their ages, which one of the following represents the given
information?
How would the equation
Answer:
what
Step-by-step explanation:
Nickoy brought some shirts. He paid $12 for each shirt. This can be modeled by the expression 12x. What does x represent
Answer:
x represents the number of shirts purchased
Step-by-step explanation:
Each time Nick buys a shirt, he has an outlay of $12. One shirt for $12, two shirts for $24, and so on. So the amount due for the purchase of x shirts is ($12/shirt)x, where x represents the number of shirts purchased.
Naomi's bill for breakfast at a restaurant was $82.She left a15% tip.What was the amount of the tip?
Answer:
$12.30 is the tip
Answer:
$12.30 is the answer.
Step-by-step explanation:
82 * 0.15 = 12.3