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
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:
Helpppp?????????????
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
If f(x) = 3x - 1 and g(x) = x + 2, find (f+g)(x).
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:
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.
how many songs can you play on sound cloud before a ad comes on
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
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
Please please asap!!
Answer:I don't know this one
Step-by-step explanation:
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.
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
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
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
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?
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
What is 1sq ft x11ft
Answer:
The answer will be 311.485313 liters
Step-by-step explanation:
Because I searched it up
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
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
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.
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.
rationalize the denominator and simplify √6/ √5-√3
Answer: see picture :)
Step-by-step explanation:
what is 49cm^2 in mm^2
Answer:
4900mm^2 or 24010000mm
Step-by-step explanation:
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 ♡
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.
need help here pleaseeee
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:
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:
HELP I NEED HELP ASAP
Answer:A??
Step-by-step explanation:
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