Answer:
b = -9
Step-by-step explanation:
Axis of symmetry of a parabola = -b / 2a.
Where y = ax² + bx + c.
Given f(x) = 3x^2 + bx + 4,
a = 3, and c = 4.
If the axis of symmetry is 3/2, than b can be found by substitution and algebra.
[ x = -b / 2a ] → [ 3 / 2 = -b / 2a ] →
[ 3 / 2 = -b / 2 (3) ] → [ 3 / 2 = -b / 6 ] →
[ 3 / 2 × 6 = -b / 6 × 6 ] → [ 18 / 2 = -b ] →
[ 9 = -b ] → [ -b = 9 ] → [ (-)(-b) = (-)(9) ] →
b = -9
please help asap
Mary wants to fill in a cylinder vase. At the flower store they told her that the vase should be filled 4/5 for the flowers to last the longest. Her cylinder vase has a radius of 4 inches and a height of 6 inches. How much water should Mary pour into the vase?
Answer:
Step-by-step explanation:
πr^2h=π·42·6≈301.59289
Simplify 4/5 to .8
Multiply 301.59289 by 0.8 to get 241.274312]
Sorry for the messy format in in school rn.
6. Which is a not a true statement about the figures shown below?
this is do soon thx
Answer:
a and d
Step-by-step explanation:both the same answers hope this helps
In 4 hours Jessie can make 6 necklaces. How many necklaces can she make in 10 hours?
Answer:
13
Step-by-step explanation:
in 8 hrs she can make 12 then cn only make one more so
How can translations help you
sketch the graph of f(x) = x2 + 8x + 16?
Answer:
THE REAL ANSWER IS IN THE SCREEN SHOT HIS IS NO VIRUS LINK
Step-by-step explanation:
pls mark me brainliest
the values of w is inversely proportional to m .if w=8 then m=25; what is m when w=20?
Answer:
m = 10
Step-by-step explanation:
Given w is inversely proportional to m then the equation relating them is
w = [tex]\frac{k}{m}[/tex] ← k is the constant of variation
To find k use the condition w = 8, m = 25 , then
8 = [tex]\frac{k}{25}[/tex] ( multiply both sides by 25 )
200 = k
w = [tex]\frac{200}{m}[/tex] ← equation of variation
When w = 20 , then
20 = [tex]\frac{200}{m}[/tex] ( multiply both sides by m )
20m = 200 ( divide both sides by 20 )
m = 10
what is 49cm^2 in mm^2
Answer:
4900mm^2 or 24010000mm
Step-by-step explanation:
PLEASE HELP FAST!!!
Which equation has an undefined slope?
a) y = 6x + 0
b) x = 4
c) y = -4
d) y = -2/3x - 6
Answer:
Hello,
I just think that it is A
Why you may ask?
Because it has a Zero and that is an undefined number than
Step-by-step explanation:
Please I want brainest
Which of the following situations are equal to 40%? Select all that apply.
A) 5 out of 20
B) 6 out of 15
C) 10 out of 25
D) 45 out of 90
E) 32 out of 80
how did you get the number 8?
Answer:
gracias for the free points :)
Step-by-step explanation:
Answer:
From 8^2/8.
Step-by-step explanation:
Please please asap!!
Answer:I don't know this one
Step-by-step explanation:
how many songs can you play on sound cloud before a ad comes on
Which expression is equivalent to three eighths? (2 points)
a
8 ÷ 3
b
3 ÷ 8
c
8 − 3
d
3 − 8
Answer:
A
Step-by-step explanation:
Answer:
its A/ 8 divided by 3.
Kira's pet turtle is 18 inches in length. Which of these is equal to 18 inches? A) 1 1/2 yards B) 1 1/2 feet C) 2 yards D) 2 feet
Answer:
B
Step-by-step explanation:
1) There are 12 inches in a foot.
2) 18 inches minus 12 inches = 6 inches.
3) You have you your 1 foot and 6 inches which is 1/2 a foot.
4) 1 1/2 feet
Answer:
IS B)1 1/2 IM DOING THE TEST NOW AN I HATE IT
Step-by-step explanation:
Identify the volume of the composite figure. Round to the nearest tenth.
Answer:
474.5 ft ³
Step-by-step explanation:
1) Find the volume of the cube
[tex]A=l^3[/tex] where l is the side length
Plug in 9 ft as l
[tex]A=9^3\\A=729[/tex]
Therefore, the volume of the cube is 729 ft³.
2) Find the volume of the cylinder
[tex]A=\pi r^2h[/tex] where r is the radius of the base and h is the height of the cylinder
Plug in 3 ft as the radius and 9 as the height
[tex]A=\pi (3)^2(9)\\A=\pi (9)(9)\\A=81\pi \\A=254.5[/tex]
Therefore, the volume of the cylinder is approximately 254.5 ft ³.
3) Subtract the volume of the cylinder from the volume of the cube
729 ft³ - 254.5 ft ³
= 474.5 ft ³
Therefore, the volume of the figure is 474.5 ft ³.
I hope this helps!
Answer:
I think It's A
Step-by-step explanation:
need help here pleaseeee
HELP I NEED HELP ASAP
Answer:A??
Step-by-step explanation:
11 sheets of A4 size paper weights 341 grams. Find the number of such sheets in a weight for 2 kg 666 grams of such paper?
please help me with this please
Answer:
THE FIRST ANSWER IS 29+29+29+29
THE SECOND ANSWER IS 58
Step-by-step explanation:
How i got that answer is from it says square so i know that a square has 4 sides.
WILL GIVE BRAIN FIND THE UNKNOWNS TYSM!!!!
Answer:
if i'm correct you either divide the two numbers you have to get the answer or you multiply them to get the answer
Step-by-step explanation:
108 divided by 92
or
108 x 92
Between which two numbers is √8 located on a number line?
Answer:
√8 is between 2 and 3.
Step-by-step explanation:
♡ im sorry if its wrong ♡
If f(x) = 3x - 1 and g(x) = x + 2, find (f+g)(x).
if i made 280 a month how much would i have in a year
Answer:
3360 dollars
Step-by-step explanation:
280 x 12 = 3360
Answer:
It esay answer is 3360
Step-by-step explanation:
Thereare 12 months in a year. You made 280 amonth.So multiple 280 and 12.
What is 1sq ft x11ft
Answer:
The answer will be 311.485313 liters
Step-by-step explanation:
Because I searched it up
how do you solve for u?
Answer:
u=9.8
Step-by-step explanation:
the minus sign on u and the minus sign on 9.8 cancel out so you get u=9.8.
A spotlight can be adjusted to effectively light a circular area of up to 6 meters in diameter. To the nearest tenth, what is the maximum area that can be effectively lit by the spotlight? Use 3.14 for pi.
i know im late but i will still grab these points
Answer: 28.27 m
Step-by-step explanation: A = 1/4 π d2= 1/4 * π * 6*2 ≈ 28.27
Answer: 28.27
Step-by-step explanation:
Helpppp?????????????
rationalize the denominator and simplify √6/ √5-√3
Answer: see picture :)
Step-by-step explanation:
Tu bicicleta necesita ser reparada. Un mecánico cobra $ 22 por cada hora de trabajo y las piezas nuevas cuestan $ 23. El costo total para reparar la bicicleta es de $ 111. ¿Cuántas horas le tomó al mecánico arreglar la bicicleta?
Answer:
the number of hours that would be taken is 4
Step-by-step explanation:
The computation of the number of hours would be taken is shown below:
Let us assume the number of hours be x
Now according to the question
The equation is
$22x + $23 = $111
$22x = $111 - $23
x = 4 hours
Hence, the number of hours that would be taken is 4
Brian buys 32 bottles of soy sauce, in total he has 4/800 ml of soy sauce. How much soy sauce would he have if he bought 23 bottles of soy sauce?
Answer:
23/6400 ml or 0.003594 ml
Step-by-step explanation:
Steps to determining the answer
Determine the quantity of soy sauce in one bottle by dividing 4/800 by 32The answer gotten in the above step is multiplied by 23 to determine the total amount of soy sauce in 23 bottlesSoy sauce in one bottle = total soy sauce in one bottle / total number of bottles
4/800 ÷ 32 =
4/800 x 1/32 = 1 / 6400
soy sauce in 23 bottles
1/6400 x 23 = 23/6400 ml or 0.003594 ml
a pyramid has a square base with side s. the height of the pyramid is 2/3 that of its side. what is the expression for the volume of the pyramid? ~~~
A. V=2s²
B. V=2s³
C. V=2/3s²
D. V= 2/9s³
E. V=1/3s³
Answer:
D. V= 2/9s³Step-by-step explanation:
Volume of square based pyramid:
V = 1/3 s²hGiven
h = 2/3sSubstitute
V = 1/3s² (2/3s) = 2/9s³Correct choice is D
Answer:
volume of pyramid = 2/9s³