help me with 3 and 4
3. Answer:
x=3/2+1/2√21 or x=3/2+-1/2√21
Step-by-step explanation:
For this equation: a=1, b=-3, c=-3
1x2+−3x+−3=0
Step 1: Use quadratic formula with a=1, b=-3, c=-3.
x=−b±√b^2−4ac/2a
x=−(−3)±√(−3)^2−4(1)(−3)/2(1)
x=3±√21/2
x=3/2+1/2√21 or x=3/2+−1/2√21
Answer:
3: x= 3.7912874, x= 0.79128784
4: x= 0.62181997, x= -4.28848664
Step-by-step explanation:
It’s all solve for x what number actually makes the equation true.
The harbor at Green Top Lake has a lot of algae. However, as it gets colder, algae starts dying. At the beginning of fall, there 150,000 square feet of algae. Suppose half of the algae dies per month. What is the relationship between time and amount of algae?
discrete or continuous
Answer:
Discrete.
If it was continuous, probably all the algae would have died.
Discrete
It is the amount of time of an event. Fall is a type of event, which lasts for a period of time.
Please help due today
Answer:
160 - 2
120 - 1 1/2
240 - 3
Step-by-step explanation:
80 km driven every hour
help, please!!!its urgent
Answer:
Step-by-step explanation:
its f because its pretty easy
Find the amount Enca owes at the end of 3 years if $6500 is loaned to her at a rate of 4% compounded monthly
Answer:
7311.616
Step-by-step explanation:
6500 x 1.04^3
5 - 3(7 - 2r)
How do I simplify the expression
Find d.
(Please explain why it is the answer you picked, I’m having a hard time understanding, my teacher gives us lessons to teach ourselves but I don’t even know how to start)
Answer:
i dont know if its right since i havent done trig in ages but
[tex]3 \sqrt{3} [/tex]
Step-by-step explanation:
tan(30)x9?
put the opposite angle inside the () since were doing toa which is tan(sin)=opposite/adj
so if we rearrange the formula to make opposite the subjects its
opposite=tan x adj
this is probably wrong so u might want to check with someone else
PLEASE HELP MEH I"M CONFUZLED
Write an expression for t divided by 218
Answer:
you have to write an expression for 't' divided by 218. Basically just do this
t ÷ 218
Step-by-step explanation:
Can someone explain how to do this? Will mark as brainliest
Answer: x is the angle of the tricundicular angle of the imperfect triangle. It’s like area but it’s an imperfect triangle, there’s is also 2 different numbers that u should get from this
Step-by-step explanation: pls mark brainliest
write the equation of a line from the graph
Answer:
you take the graphs information and you write it in an equation.
Step-by-step explanation:
you take the graphs information and you write it in an equation.
A bag of 12 ounces of popcorn costs $4.80. What is the unit rate? (in others words what is the cost for one ounce) *
Answer:
0.4
Step-by-step explanation:
$4.80 divided by 12 = 0.4
Answer:
2.50 per ounce
Step-by-step explanation:
divide 12 by 4.80
Write two equivalent expressions for 15(3 + w).
1.
2.
A car is 160 inches lorrg.
A truck is 7% longer than the car.
How long is the truck?
Explain how you got your answer.
What is the distance between points (8, 3) and (3, 1) on the coordinate plane?
A.) 3 units
B.) √21 units
C.) 29 units
D.) 7 units
WILL MARK BRAINLIEST!!!!
Answer: The correct answer is 29 units
Step-by-step explanation: Can i Get the brainliest answer?
The distance between points (8, 3) and (3, 1) on the coordinate plane is √29 units.
Given that, the distance between points (8, 3) and (3, 1) on the coordinate plane.
What is distance formula?The distance formula which is used to find the distance between two points in a two-dimensional plane is also known as the Euclidean distance formula. On 2D plane the distance between two points (x1, y1) and (x2, y2) is Distance = √[(x2-x1)²+(y2-y1)²].
Now,
Put, (x1, y1)=(8,3) and (x2, y2)=(3,1) in distance formula, that is
Distance = √[(1-3)²+(3-8)²]
= √(4+25)
= √29 units
Therefore, the distance between points (8, 3) and (3, 1) on the coordinate plane is √29 units.
To learn more about the distance formula visit:
https://brainly.com/question/27262878.
#SPJ6
Brainlist for correct answer!
Answer:
answer is c
Step-by-step explanation:
the answer is B.b=5.5mA=70.8mc82.2
What are the roots of the equation?
102
Please help if you want BRIANLEIST!!
Answer:
9/9 × 7 is equal to 7
9/9 × 7 =
9/9 × 7/1 =
9 × 7 = 63
9 × 1 = 9
63/9 ÷ 9 = 7
Samantha invested $880 in an account paying an interest rate of 3.1% compounded
continuously. Assuming no deposits or withdrawals are made, how long would it
take, to the nearest tenth of a year, for the value of the account to reach $1,270?
Answer: 11.8
Step-by-step explanation:
what is the value of y?
Answer:
g. 8[tex]\sqrt{2}[/tex]
Step-by-step explanation:
since it's a 45 45 90 triangle, both the legs are the same (8) and the hypotenuse(y) would be 8 rad 2 :)
Plssssss help me. Ty
Answer:I believe it is the 2nd and 3rd one because 3 miles per hour and 1.5 miles away doesn’t make sense and the other two work out
Step-by-step explanation:
Is 2x+7=-3x+8 one solution?
Answer:
yes, it is x=1/5
Step-by-step explanation:
i can give you the steps if you want
Vhich of the equations below represents a line parallel to the x-axis?
A. y = 3
B. y = X
C. y = 1/x
D. x = 3
what is 45 less than six times x
Answer:
6x - 45
Step-by-step explanation:
Simplify the expression 6w + + 3w.
Answer:
9w
Step-by-step explanation:
they have the same terms so you can add them together. 6+3=9 and keep the term (w)
therefore 6x+3w=9w
Answer:
9w
add the numbers if he variables are the same
therefore you add 6 and 3 to get 9
Hope this helped!
LOL PLZ HELP Which kind of function best models this relationship?
Time (months) Views
0
50
2
313
4
1950
6
12,210
76,300
8
10
476,800
Choose 1 answer:
(A A
Linear
B
Exponential
Answer:
Exponential function
Step-by-step explanation:
A school group rented a banquet room for $110. They also paid $15 for each person (p) at the banquet. The total bill was $1,460. Which equation models the total cost for the group to rent the room?
A-15 + 110p = 1,460
B-10 + 15p = 1,460
C-110(p + 15) = 1,460
D-15(p + 110) = 1,460
Answer:
10+15p =1460
Step-by-step explanation:
Two vertices of a rectangle are (−10, −7) and (−10, 18) .
What is the length of this side of the rectangle?
Answer:
The length of the side of the rectangle is 11 units.
Answer:
11 units
Step-by-step explanation:
did the unit test in K12
(1/2 - 1/2) - (-1/16 + 1/16)
Answer:
I think the answer is 0. .......
Solve for b.
b = ✓ [?]
15
8
b
Pythagorean Theorem: a2 + b2 = c2
Enter
Answer:
161
Step-by-step explanation:
8² + b² = 15²
first square 8 = 64
then square 15 = 225
ok.
225 - 64 = 161...
The graph of f(x) = is stretched vertically by a factor of 2 and then
shifted up 5 units to create the function g(x). What is the rule for g(x)?
Answer:
g(x)= 2x^2 + 5 should be right
Step-by-step explanation:
