Answer:
9
Step-by-step explanation:
Pilar bought a purse on sale for $18, which is one-half of the original price. What was the original price of the purse?
Answer:
36
Step-by-step explanation:
18 plus 18 is 36
i added those numbers together because two halves equal a whole
Answer:
$36
Step-by-step explanation:
x * 1/2 = 18
solve for x:
1/2x = 18 is the same
18/ 1/2
help pleaseee i dont have many pts but ill mark brainliest
Using t = 3.14, what is the circumference of a circle with a diameter of 2 units
Step-by-step explanation:
diameter (d) = 2 units
circumference (c)
= π d
= 3.14 * 2
= 6.28 units
Hope it will help :)
Find the vertex of the function given below.
y= 2x2 + 4x + 1
Answer:
vertex is (-1,-1)
Step-by-step explanation:
2 ways
1. get into vertex form y=a(x-h)^2+k
2. use math hacks
1.
vertex is (h,k) in y=a(x-h)^2+k
complete square
y=(2x^2+4x)+1
y=2(x^2+2x)+1
y=2(x^2+2x+1-1)+1
y=2((x+1)^2-1)+1
y=2(x+1)^2-2+1
y=2(x+1)^2-1
y=2(x-(-1))^2+(-1)
vertex is (-1,-1)
2.hack way
in form y=ax^2+bx+c
x value of vvertex is -b/2a
given
y=2x^2+4x+1
b=4, a=2
xvaluevertex=-4/(2*2)
xvaluevertex=-4/4=-1
sub back to find y value
y=2(-1)^2+4(-1)+1
y=2(1)-4+1
y=2-4+1
y=-1
y value is -1
Answer:
(-1,-1)
Step-by-step explanation:
To find the x coordinate, we use the formular x = -b/2a where b=4 and a = 2 from the given function.
hence x = -(4)/2(2) = -1
then to get the y coordinate we substitute the value of x into the given function, so y = 2(-1)^2+4(-1)+1 = -1
therefore, the vertex is (-1,-1)
Lamar received 7/8 of the 160 votes cast for class president. How many votes did he receive?
Answer:
140 votes
Step-by-step explanation:
Answer:
140
Step-by-step explanation:
7/8=87.5% x 160= 140
The distance from Palo Alto, CA and Columbus, OH is 2,470 miles. Due to the winds it takes 4 hours and 20 minutes to fly to Ohio, but 5 hours on the return trip (which is the same distance). Find the ground speed of the plane assuming that plane ground speed and wind speed remain constant.
Answer: 494 mph
Step-by-step explanation:
S=d/t
6. To clean his floors, Larry uses a recipe for a homemade cleaner of 1 part lemon juice, 1 part vinegar,
and 2 parts hot water. If he needs to mix 2 gallons of the cleaner and there are 16 cups in a gallon, how
much of each ingredient does he need?
What's the circumference of a
circle with a radius of 2 inches?
Use 3.14 for it.
C = [?] inches
Step-by-step explanation:
radius (r) = 2 inches
circumference (c) = ?
we know
C = 2 πr
= 2 * 3.14 * 2
= 12.56 inches
Hope it will help :)
The sum of two numbers is –11. The difference of the two numbers is –7. What is the product of the two numbers?
Answer:
18
Step-by-step explanation:
According to the numbers the both numbers have to be negative
subtracting a negative will be the same as addition and so thats why the difference is bigger.
now its time for guess and check.
-6+-5
-11
but -6-(-5)=-1
so lets try
-9+(-2)=-11
-9-(-2)=-7
yay
so the product is
(-9)*(-2)=18
Describe, in words, how the figure at the right was translated.
Answer:
8 up, 6 left
Step-by-step explanation:
Locate any point from triangle A and go up 8 steps to get on the same level as triangle A'. Then, move to the left 6 steps.
The graph translated 6 unit left and 8 unit upward.
What are coordinates?A pair of numbers called coordinates are used to locate a point or a form in a two-dimensional plane. The x-coordinate and the y-coordinate are two numbers that define a point's location on a 2D plane.
Given, A figure "A" that translated at different position in cartesian plane.
Since, A translation is when a geometric figure slides up, down, left or right on the coordinate plane. The figure moves its location, but doesn't change its orientation. It also doesn't change its size or shape.
Thus, we can observe only one point on the figure and calculate the movement of the figure.
Lets focus on the left bottom corner of the figure.
It moves from the coordinates (1, -5) to the coordinates ( -5, 3)
Since Horizontally translating a graph is equivalent to shifting the base graph left or right in the direction of the x-axis
So, we can say it translated to the lefty by 6 unit.
Same it goes with vertical translation.
Therefore, The graph translated 6 unit left and 8 unit upward.
Learn more about coordinates here:
https://brainly.com/question/20282507
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If an object has a Mass of 11g and a volume fo 13mil, what is its density?
A.143g/ml
B.0.85g/ml
C.2g/ml D.24g/ml
Step-by-step explanation:
Mass (m) = 11 g
volume (v) = 13 ml
density (d) = ?
We know density is defined as mass per unit volume so
d = m / v
= 11 / 13
= 0.85 g/ml
Density (d) = 0.85 g/ml
Answer:
B
Step-by-step explanation:
HELP ME NOW BDJSJAHJAHA
Answer:
D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
7x + 2y=-12
Y=-3x-4
Answer:
x=-4
Step-by-step explanation:
X would be -4 because if you distribute 2 to (-3x-4) it would give you (-6x-8) and then collecting like terms you would get (x-8=-12) then you would add 8 to -12 whih would equal -4.
Se ocupa del estudio de todos los hechos y acontecimientos que se han presentado en las
sociedades desde la mas antigua hasta el presente
Con basen en la lectura responda
1 "Las civilizaciones antiguas como Mesopotamia, siria y Egipto son importantes por el legado que dejaro
sociedades posteriores con base en esta afirmacion, Mesopotamia fue la que mejor desarrollo la agricul
A Por ubicarse entre los rios Tigris y Eufrates
B. Por sus construcciones tan avanzadas
C. Por la capacidad de convivencia con diferentes comunidades
D. Por su organización política y económica
Answer:
do english
Step-by-step explanation:
help fast again sorry
Answer:
75%
Step-by-step explanation:
Answer:
75%
Step-by-step explanation:
Can someone help me with this question?
Answer:
x=16
Step-by-step explanation:
What's the circumference of a
circle with a radius of 10 inches?
Use 3.14 for n.
C = [?] inches
Answer:
62.83 inches
Step-by-step explanation:
This video is better than any explanation i can give to help remember how to find the circumference of a circle: https://youtu.be/9WGO7dAxjD8
the probability that is from the 60s is
Huhh?? Explain better ols
One number was divided by 15, followed by this quotient being multiplied by 2. Next, the product was added to 9. The total sum was 7, so what was the first divisor?
When a polling company calls a telephone number at random, there is only a 9% chance that the call reaches a live person and the survey is successfully completed. Suppose the random digit dialing machine makes 15 calls. Let X = the number of calls that result in a completed survey.
(a) Calculate and interpret the mean of X.
(b) Calculate and interpret the standard deviation of X
Answer:
(Part A) I know the mean of x will be 1.35
Step-by-step explanation:
Just do 9 percent of 15, I nessecarly dont know how to do that math but I looked it up and gave me 1.35. and you got the mean. here is the homework my teacher gave me : I hope this helps
30 points! I will mark brainliest! agenthammerx please help
1. m<C = 48°.
2. <X = <Y.
Explanation :<ABD = <CDB = 62°
<BDA = <DBC = 70°
<DBC + <BCD + <CDB = 180°
70° + <BCD + 62° = 180°
132° + <BCD = 180°
<BCD = 180° - 132°
<BCD = 48°
m<C = 48°
The triangle is a right triangle. If ZX = ZY then <X = <Y
UNANSWERED PLZ HELP
#2 Is this triangle congruent? If so, list the congruent parts and justify your answer. Then state the criteria.
Answer:
YES
Criteria: SAS criterion
∆EFJ ≅ ∆HFG
Step-by-step explanation:
Side EF in ∆EFJ ≅ side HF in ∆HFG (corresponding sides)
Side FJ in ∆EFJ ≅ side FG in ∆HFG (corresponding sides)
Also,
<F in ∆EFJ ≅ <F in ∆HFG (vertical angles are congruent)
Thus, two sides and one included angle of ∆EFJ are congruent to two corresponding sides and an included angle of ∆HFG.
Therefore, by the SAS Congruence Theorem, ∆EFJ ≅ ∆HFG.
!!!!!! please help!!!!!!!!!!
Answer:
6ft
Step-by-step explanation:
Linda walked 1/6 mi to the park and then another 4/9 mi to the cafe. How far did she walk in total?
Answer:
could you show the answers
Step-by-step explanation:
= 1/6 mi + 4/9mi
= 9 + 24
54
=33/54mi
= 9.444444...
Find the circumference of the
circle. Use 3.14 for it. Do not
round your answer.
C = [? ] feet
18 feet
Enter the number that
Answer:
either 56.52 or 113.04
Step-by-step explanation:
if 18 is the diameter: C= 56.52 feet
if 18 is the radius: C= 113.04
Solve the inequality 3x-9<12
Answer:
x < 7
Step-by-step explanation:
3x - 9 < 12 add 9 for both sides.
3x < 21 divide both sides by 3.
x < 7.
Write an expression that is equivalent to 3/5 (3y + 15).
9 over five y+9
<33333
find the values of x and y
Answer:
x = 79 y = 22
Step-by-step explanation:
x would be the same as the other side so 79 * 2 would be 158. A whole triangle is 180. 180 - 158 = 22
Which graph represents the solution to this inequality? 16x-80x<37+27
Answer:
The answer for this would be B.
A natural number is less than the sum of its opposite and 8. find all such numbers
Answer:
If 0 is included in the natural numbers: 0,1,2,3
If 0 is not included in the natural numbers: 1,2,3
Step-by-step explanation:
Let n denote the natural number.
Its opposite is -n
The sum of its opposite and 8 is
-n+8
This is greater than the natural number
n<-n+8
Solve for n
2n<8
n<4
The numbers are numbers that are less than 4
Let the natural number be nThe opposite of the number will be -nIf a natural number is less than the sum of its opposite and 8, this is expressed as:
n < -n + 8
n+ n < 8
2n < 8
n < 8/2
n < 4
Hence all the numbers are numbers that are less than 4
Learn more on inequalities here:https://brainly.com/question/24372553