Help me with this math, please!! <3
which relation is a function?
Algebra 2 Need help with b
Answer:
a. was incorrect a = -0.109569028 so...
y = -0.109569028(x + 7)² + 54
b. It's been the above vertex equation for a parabola then
set y = 40 equal to the parabolic equation, we get
40 = -0.109569028x² - 1.533966392x + 48.631117628
solve for x we get
x = -18.3036867393939 or ~ 18.3 feet
Step-by-step explanation:
y = a(x - h)² + k
(h, k) = vertex = (-7, 54)
x = h is the axis of symmetry -7
y = a(x -(-7))² + 54
y = a(x + 7)² + 54
solve for a by inputting the point (15.2, 0)
0 = a(15.2 + 7)² + 54
-54 = a(22.2)²
-54 = 492.84a
a = -54/492.84
a = -0.109569028
How do you plot a fraction on a graph that only allows whole numbers?
Answer:
Depends, rise over run could be considered a fraction, or if it's a number that has a whole number like one and 3/4 then you just plot the point to the best of your ability. In other words guess.
simplify the expression shown
A:-xy+3y
B:xy+3y
C:-xy-3y
D:xy-3y
Answer:
C:-xy-3y is the answer your welcome
What is
19
21
as a decimal rounded to 3 decimal places?
Solve for t in 2^t²- t= 4
Answer:
t= -1/2 ,t=4
Step-by-step explanation:
2t^2- t -4 =0
2t^2 - 8t+t -4=0
(we have to find the factor here. I have used The Product Sum method of factorization)
2t( t-4) + 1( t-4)=0
(2t+1) (t-4)=0
t= -1/2 ,t=4
Which equations are correct?
Select each correct answer.
6a^5(6a^5)=36a^25
6b^4(−3b^4)=−18b^8
5x^4(4x^2)=20x^6
3z^7(4z^2)=12z^9
What is 7 ⅖ decreased by 4 4/5 ?
Answer:
2 3/5
Step-by-step explanation:
7 2/5 decreased by 4 4/5, Is the same as 7 2/5 - 4 4/5, which equals to 2 3/5.
Explain why every square is a quadrilateral. Choose the correct answer below.
A.Every square is a quadrilateral because it is a polygon in which opposite angles have the same measure.
B.Every square is a quadrilateral because it is a polygon with exactly one pair of parallel sides.
C.Every square is a quadrilateral because it is a four-sided polygon.
Hello! I need help with coordinate planes in math. I don't need an explanation, because I do kind of understand it. If you don't know the answer, please don't answer it. If you have any questions about the question, please drop in a comment! Thank you!
Answer:
the first one
the third one
thats all I know but this should help I have some work to do soooo sorry big zozo ;(
Step-by-step explanation:
Find the missing factor A that makes the equality true
8x 3 =(−2x)(A)
8.) Sophia counter offered with $35,000 for 25% of her company, How much does
she think her company worth? (Hint, Use a proportion to find what 100% of her
company is worth)
% 25%-100%
$ 35,000
Answer: $ 140,000
Step-by-step explanation:
Worth 35 points and Ill give brainliest to corrects answer Please help!
1. Which statement best represents how structure relates to function?
A. The average dog can learn approximately
B. Oppsable thumbs in humans and certain other animales for fine control of gripled objects.
C. Fruit flies live for only 40 to 50 days. D. Robins build nests in trees.
2. who is studying a newly discovered animal, a scientist observes that the animal chance to have one or two Offspring at a time only once or twice per year.
Which type of life history does this animale use?
A. R-Strategy
B. K-Strategy
C. Logistic growth
D. Asexual reproduction
Answer:
The
Answer
for
1
might
be
B
and
answer
for
number
2
is
c
I
think
10 - 2(3p - 6)
How do I evaluate this?
Answer:
−6+22
Step-by-step explanation:
1. Distribute
10−2(3−6)
10−6+12
2. Add the numbers
10- 6+12
22-6
3. Rearrange Terms
22+6
-6+22
How much money will be in an account at the end of 6 years if $8000 is deposited at 7% interest compounded 2 times per year? Assume no deposits or withdrawals are made. HELPPPPPPPPPPPP
Answer:
$12,088.55
Step-by-step explanation:
$8000(1+(0.07/2))^(2*6)
$8000(1.035)^(2*6)
$8000(1.51106865)
$12088.5492 - exact
$12088.55 - real
Determine if the following system of equations has no solutions, infinitely many
solutions or exactly one solution.
x + y = 2
–5x - 5y = -10
Step-by-step explanation:
The usual thing to do is to try to get rid of one variable first. So to get rid of x, we multiply the first equation by 5.
5(x + y) = 2(5)
-5x - 5y = -10
---> 5x + 5y = 10
-5x - 5y = -10
---> 0 = 0
As you can see, everything cancels out. If the statement is true, then it is infinitely many solutions.
Rewrite the quadratic portion of the algebraic expression as the sum or difference of two squares by completing the square.
9
x2 + 6x + 34
What is the quotation?
Answer:
the quotient is the result so 4.25
Plot the graph of the linear equation. 3x-2y=6
Answer:
First point : (0, -3)
Second point : (2, 0)
Y-intercept : -3
Step-by-step explanation:
To tackle a question like this, the first thing you want to do is put the equation into y = mx + b form.
1.) 3x - 2y = 6
2.) -2y = -3x + 6 (bring 3x to the other side, using inverse operations)
3.) y = 1.5x - 3 (divide -2 on both sides, to isolate the variable y)
Now that you have the y-intercept (-3), you have your y value. Finally, just substitute the variable y from the original equation to solve for the x value.
1.) 3x - 2(-3) = 6
2.) 3x + 6 = 6 (multiply (-2) and (-3))
3.)3x = 0 (subtract 6 on both sides using inverse operations)
4.) x = 0
Now you have your first point which is (0, -3)!
To get your last point, just substitute your y coordinate from the original equation to get x.
1.) 3x - 2(0) = 6
2.) 3x - 0 = 6
3.) 3x = 6
4.) x = 2
Then, substitute the x coordinate from above in the original equation to get the y coordinate.
1.) 3(2) - 2y = 6
2.) 6 - 2y = 6
3.) -2y = 0
4.) y = 0
Second coordinate : (2, 0)
I hope this explanation was helpful!
solve for y, 10x-4y=24
Answer:
y=-2.5x-6 is the answer
PLEASE HELP ITS MATH THANK YOUUUU
Answer:
5:1
Step-by-step explanation:
The ratio in this case is inches to yards so it would be 5 inches to 1 yard
What is the function of this graph ?
Answer:
awedawedwadddddddddddddddddddddddddddddddd
Step-by-step explanation:
awedwadawaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
After two semesters of course work, a student has completed 32 credit hours of course work with a grade point average of 3.15. What grade point average will the
student need to complete in order to raise their cumulative grade point average to 3.2, if the student is taking 14 credit hours of graded course work this semester
(third semester)?
Using weighed average, it is found that the student will need a GPA of 3.31.
To find a weighed average, each value is multiplied by it's weight.
For the student's average, we have that:
GPA of 3.15 with a weight of 32.GPA of x with a weight of 14.We want the mean to be 3.2, thus:
[tex]\frac{3.15(32) + 14x}{32 + 14} = 3.2[/tex]
[tex]3.15(32) + 14x = 46(3.2)[/tex]
[tex]14x = 46(3.2) - 32(3.15)[/tex]
[tex]14x = 46.4[/tex]
[tex]x = \frac{46.4}{14}[/tex]
[tex]x = 3.31[/tex]
The student will need a GPA of 3.31.
A similar problem is given at https://brainly.com/question/16233451
the product of two rational numbers is 9.6 if one rational number is 66/7. find the other rational number
Answer:
0.1714
Step-by-step explanation:
just substract 9.6 from 66/7 which will give u the other rational number.
then add both the rational numbers to check ur answer.
66/7 + 0.1714 = 9.6
An item is priced at $14.29. If the sales tax is 5%, what does the item cost including sales tax?
Answer:3-5=787879. youu
Step-by-step explanation:
Simplify each radical 1-4
Answer:
1- H , 2- B , 3- A , 4- F
Step-by-step explanation:
Just simplify and you will get the answer.
Goodluck
The population P of a small town, measured in hundreds, is modeled by the inverse of the function P−1(t) = 10ln(50t − 1000), where t is measured in years. Find the equation to model the population and determine its initial value.
P = 5t +100 where P(0) = 100
P = 1/50 In(0.1t)+20
P = 1/500e^t + 20
P = 1/50e^0.1t + 20
Using the inverse function, it is found that the equation is:
[tex]P(t) = \frac{e^{0.1t}}{50} + 20[/tex]
It's initial value is 20.
---------------------------
We want to find the inverse of:
[tex]y = P^{-1}(t) = 10\ln{50t - 1000}[/tex]
To do this, we exchange y and t, and isolate y.
Then:
[tex]10\ln{50y - 1000} = t[/tex]
[tex]\ln{50y - 1000} = \frac{t}{10}[/tex]
[tex]e^{\ln{50y - 1000}} = e^{0.1t}[/tex]
[tex]50y - 1000 = e^{0.1t}[/tex]
[tex]50y = e^{0.1t} + 1000[/tex]
[tex]y = \frac{e^{0.1t} + 1000}{50}[/tex]
[tex]y = \frac{e^{0.1t}}{50} + \frac{1000}{50}[/tex]
[tex]P(t) = \frac{e^{0.1t}}{50} + 20[/tex]
It's initial value is:
[tex]P(0) = \frac{e^{0.1(0)}}{50} + 20 = 0.02 + 20 = 20.02[/tex]
Rounding, 20.
A similar problem is given at https://brainly.com/question/23950969
Answer:
P = 1/50e^0.1t + 20
Step-by-step explanation:
Your grandfather placed $5,000 in a trust fund for you. In 12 years, the fund will be
worth $10,000. What is the rate of return on the trust fund?
Answer:
fv/pv=(1+r)^n
10,000/5000=(1+r%)^12
2=(1+r%)^12
r= 5.95
Step-by-step explanation:
fv/pv=(1 + r)^n
10000/5000=(1 + r%)^12
2=(1 + r%)^12
r=5.95
Need helpppppppppppppppppp
Answer:
46.3
Step-by-step explanation:
Mean is the average of all values. You add all the values on the table and divide them by the amount of values (here there are 10 land animals so you would divide by 10).
[tex]\frac{70+61+50+48+45+43+40+39+35+32}{10} =\frac{463}{10} = 46.3[/tex]