Answer:
y=3x2−2x+2
Step-by-step explanation:
Standard form of equation of a parabola is [tex]y=ax^2+bx+c[/tex]
As it passes through points (−2,18), (0,2) and (4,42), each of these points satisfies the equation of parabola and hence
18=a⋅4+b⋅(−2)+c or 4a−2b+c=18 ........(A)
2=c ........(B)
and 42=a⋅16+b⋅4+c or 16a+4b+c=42 ........(C)
Now putting (B) in (A) and (C), we get
4a−2b=16 or 2a−b=8 and .........(1)
16a+4b=40 or 4a+b=10 .........(2)
Adding (1) and (2), we get 6a=18 or a=3
and hence b=2⋅3−8=−2
Hence equation of parabola is [tex]y=3x^2 -2x+2[/tex] and it appears as shown below
graph{3x^2-2x+2 [-10.21, 9.79, -1.28, 8.72]}
helppp
what is the slope?
Answer:
2
Step-by-step explanation:
slope = rise / run
rise = 20
run = 10
20/10 = 2
Evaluate the given expression. P(9, 3)
Step-by-step explanation:
p=9
p=3
p-9=0
p-3=0
(p-9)(p-3)=0
p*2-3p-9p+27=0
p*2-12p+27=0
ABCD is a quadriateral Work out the length of BC Give you answer to 1 decimal place
Answer:
8.1
Step-by-step explanation:
It might be wrong I'm bad at solving triangles
A function is a type of
A.domain
B. range
C. relation
D. vertical line test
if there are 2.52 centimeters in 1 inch, how long in inches is a meter stick.
Hint: There are 100 centimeters in 1 meters. Round your answer to the nearest hundredth.
26.04 in
41.97 in
31.20 in
39.37 in
Answer:
Step-by-step explanation:
An investment of P=1237.50 is compounded annually with a 6.75% APR . Find the value of the investment after 5 and a half years.
Answer:
1772.43Step-by-step explanation:
Given:
Principal P = 1237.50Interest rate r = 6.75% or 0.0675Number of compounds n = 1Time t = 5.5 yearsFind the total:
[tex]A = P(1 + r/n)^{nt}[/tex][tex]A = 1237.5*(1+0.0675)^{5.5} = 1772.43[/tex]Help, Fast!!! In class rn and need help!
Step-by-step explanation:
the answer is 2.........
simultaneous linear equation 2x+y=4 3x-y=2
Answer:
[tex]2x + y = 4 \\ 3x - y = 2 \\ y = 4 - 2x \\ 3x - (4 - 2x) = 2 \\ 3x - 4 + 2x = 2 \\ 3x + 2x = 2 + 4 \\ 5x = 6 \\ x = \frac{6}{5} \\ x = 1.2 \\ y = 4 - 2x \\ y = 4 - 2(1.2) \\ y = 4 - 2.4 \\ y = 1.6 \\ [/tex]
Step-by-step explanation:
Hope that this is helpful.
Have a great day.
HELP IM DOING A MATH TEST PLSSSS 25 PTS
Megan is running a 1 mile lap for 3 hours how many miles did she run
Answer:
Can you elaborate on the question, like is there a given for how long each lap takes?
Step-by-step explanation:
3y=9-12x I need the slope for this equation and the steps giving 20 points and BRAINLIST
como buscar a una perzona a qui en brainly
Answer:
can l
Step-by-step explanation:
can l? can l? can l~
PLEASE HELP!!! ill give you brainlest:)) TPWK!!!
Answer:
82m²
Step-by-step explanation:
split it into a rectangle and square
3x6=18
8x8=64
total area = 82
para atrapar a un pez dos gaviotas se sumergen en el mar. la primera se sumerge 45cm y la otra 60cm. si el pez se encuentra a 50cm de profundidad cuál de las dos gaviotas está más cerca de alcanzarla
Answer:
45
Step-by-step explanation:
esta a 5cm de distancia del pez mientras la otra está 10cm
What is the value of w in the equation
0.04w + 0.6= 2.4?
Answer: 45
Step-by-step explanation:
0.04w+0.6=2.4
Step 1: Subtract 0.6 from both sides.
0.04w+0.6−0.6=2.4−0.6
0.04w=1.8
w=45
Answer:
w = 45Step-by-step explanation:
What is the value of w in the equation
0.04w + 0.6= 2.4?
0.04w + 0.6 = 2.4
0.04w = 2.4 - 0.6
0.04w = 1.8
w = 1.8 : 0.04
w = 45-----------------------------
check
0.04 × 45 + 0.6 = 2.4
1.8 + 0.6 = 2.4
2.4 = 2.4
The answer is goodBRAINLIEST to correct answer!
Answer:
Each circle contains shapes that all share at least one characteristic. Some shapes are contained in more than one circle because they share more than one characteristic.
The distance between any point of the circle and the centre is called the radius. All these circles have one.
Hope this helps!
what is 2x divided by a
Answer:
By a what??
Step-by-step explanation:
Answer:
2x a =0
Step-by-step explanation:
there is nothing to explain thanks hope you'll get it
Two friends leave school at the same time, Sarah is heading due north and Beth is heading due east. One hour later they are 10 miles apart. If Sarah had traveled 8 miles from the school, how many miles had Beth traveled?
Answer: 6 miles
Step-by-step explanation:
If you picture this scene in your head, you will get a simple 3x4x5 right triangle. 4 times 2 is 8, 5 times 2 is 10, so Sarah should, by now, have traveled 3 times 2 miles.
Final answer: Beth has traveled 6 miles after an hour.
Hope this helped! :)
Helping tip: The reason it is not 4 is because they are not traveling west and east away from each other. They are traveling north and east, so they are moving in two directions to form a right triangle, and the hypotenuse would be 10 (miles). The side, or distance, that Beth has traveled is 8. So as this is a typical variation of a 3x4x5 triangle Beth will have traveled 6 miles.
PLEASE HELP ME IT WILL MEAN A LOT TO ME .
Answer:
19%
Step-by-step explanation:
Use a common measurement style. Generally, it is easiest to use decimal.
0.22 is given as a decimal.
19% means 19/100, in which, when changed to a decimal, you will move the decimal point to the left two place values, giving you the value of 0.19
For fractions, you will generally set it over 100 first, before finding the decimal. Remember that what you multiply to the denominator you must multiply to the numerator:
1/5 x (20/20) = 20/100
20/100 = 0.20
19% is the one that contains the least amount of calories from fat.
~
tan(-212°) = _____.
-cot 32°
tan 32°
cot 32°
-tan 32°
Maria can weed the garden in 1.5 hours. If Janette helps her, they can finish the job in 30 minutes. How long does it take Janette to weed the garden alone?
1) (0, −2) and (2, 0)
2) (0, −2) and (−2, 0)
3) (0, 2) and (2, 0)
4) (0, 2) and (−2, 0)
Answer: (2; 0) and (0 ; -2 )
Step-by-step explanation:
equation of a circle [tex]x^2+y^2=4[/tex] with a center (0;0)radius [tex]R=2[/tex] y=kx+b -equation of a straight line that has tangent points with a circle(2; 0) and (0 ; -2 ). these points are the solution to our problemProver that : [tex]\rm (2)^2+0^2=4 \ True \\\\ 0^2+(-2)=4 \ True[/tex]Simplify this expression.
20.25 – 9 + 11
о
1
4
0 18.75
0
21?
0 40.75
Answer:
[tex]21\frac{3}{4}[/tex]
Step-by-step explanation:
Step 1: Add the numbers.
20.25 can also be expressed as [tex]20\frac{1}{4}[/tex], because [tex]\frac{2025}{100}[/tex] = [tex]\frac{81}{4}[/tex] = [tex]20\frac{1}{4}[/tex]. So if we add [tex]20\frac{1}{4}[/tex] and 11, we would get [tex]31\frac{1}{4}[/tex]
Step 2: Solve
[tex]31\frac{1}{4} -9\frac{1}{2}[/tex]
Subtract the whole numbers[tex]31-9=21[/tex]
Combine the fractionsThis means addition. Also, since our denominators are not the same value, we have to find the LCM (Least Common Denominator): What do 2 and 4 have in common that they can divide themselves by? 4. We know this because 2 divided by 4 is 2, and 4 divided by 4 is 1, so they can both divide themselves by 4.
[tex]\frac{5}{4}-\frac{1}{2}[/tex]
LCM
[tex]\frac{5}{4}-\frac{2}{4} =\frac{3}{4}[/tex]
Therefore, the simplified expression to this is [tex]21\frac{3}{4}[/tex].
Learn more: https://brainly.com/question/403991
Joe has 10 bills in his wallet. The total amount of money is $34, and he has only $1 and $5 bills. If Joe has two more $5 bills than $1 bills, find the number of each type of bill that he has in his wallet. Use a system of equations to find the answer.
Answer:Joe would have 40$
he will have 7 5 dollar bills and 5 1 dollar bills
PLEASE ANWSER CORRECTLY!! I WILL MARK BRAINIEST!!!
Step-by-step explanation:
the midpoint is (2,-3)
that is the answer
Answer:
the midpoint formula=(x1+x2)/2,(y1+y2)/2
then,
=(7-3)/2,(1-7)/2
=4/2,-6/2
=2,-3
The ratio of red candies to blue candies is 5:4 in the bag. If there are 20 blue candies in the bag, how many red candies are there
Answer:
25
Step-by-step explanation:
4/20 is 5 so 5*5 is 25 red candies
Answer:
25
Step-by-step explanation:
Divide 4 by 20 blue to get 5. Then multiply 5 by 5 to get 25.
15 points and brainliest
Simplify (Combine Like Terms).
.5x3+ 3x2−8x3−9x2+ 6
.−2y2+ 4x5+ 7y2−8 + 6x2
Answer:-5y-5
Step-by-step explanation:
Help me with both please!!
1. [tex]-4, |3-7|, 5, |2*(-3)-(-1)|[/tex]
2. a) -33
b) 34
c) -26
Explanation:
For #1: since absolute values cannot be negative, [tex]|3-7|[/tex] = 4, and
[tex]|2*(-3)-(1)|[/tex] = 7
For #2: Just work through the equations using P.E.M.D.A.S
suppose triangle ABC is reflected over the y-axis. if the distance between point B and the y-axis is 5, what is the distance between the y-axis and B'.
A. 5 units
B. 10 units
C. 2.5 units
D. 1.25 units
Needs to be answered quickly
Answer:
A. 5 units
Step-by-step explanation:
When you reflect any shape over the y-axis, each point's distance from the y-axis will stay the same after it's reflected. Hopefully this helps!
Suppose that the relation G is defined as follows.
G={(9,-3), (-9, -1), (-9,8), (0,9)}
Give the domain and range of G.
Write your answers using set notation.
domain =
range =
Answer:
Loading,please wait...
Step-by-step explanation: