Answer:
6x^2-70
Step-by-step explanation:
-b±√b^2-4ac)/2a so we have ±√1680)/12 or (±√105)/3
In 2013 the population of Indonesia was 200 million. The population was increasing by 2.3% per year. What will the population of Indonesia be in 2022.
Answer:
241,400,000
Step-by-step explanation:
200,000,000×100÷2.3= 4,600,000
2022-2013= 9
4,600,000×9= 41,400,000
200,000,000 + 41,400,000 = 241,400,000
Answer:
241,400,000
Step-by-step explanation:
200,000,000×100÷2.3= 4,600,000
2022-2013= 9
4,600,000×9= 41,400,000
200,000,000 + 41,400,000 = 241,400,000
Please, I really need help with this, I can't get the right answer, Please and thank you
Answer:
I believe that y=7I'm not sure what your tring to figure out
What is the maximum value of 5 - 4x - x2 and the value of x for which the maximum occurs? Explain your answer.
Answer:
Max value: 9
Max x value: -2
Step-by-step explanation:
We're trying to find the vertex of y = 5 - 4x - x²
We can try to convert this equation to vertex form
First, subtract 5 from both sides
y = 5 - 4x - x²
- 5 -5
y - 5 = -4x - x²
Then add -4 to both sides (this is because this the sqaure of half b -4)
y - 5 - 4 = -4x - x²+ 4
y - 9 = -4 - 4x - x²
Factor the right side of the equation
y - 9 = -(x + 2)(x + 2)
y - 9 = -(x + 2)²
Add 9 to both sides
y - 9 = -(x + 2)²
+ 9 + 9
y = -(x + 2)² + 9
To find the max values we have to make it to where x + 2 = 0
x + 2 = 0
- 2 - 2
x = - 2
When we make equation inside the parenthesis 0, we get y = 9
y = -(-2 + 2)² + 9
y = -(0)2 + 9
y = 9
At a restaurant, 36%
of the customers
are vegetarians. If there are 200 people
in the restaurant,
how many of them
are not vegetarians?
Answer:
128
Step-by-step explanation:
72 people are vegetarians so 200-72=128
in each diagram below, line A is parallel to line B. in which diagram does the alternate interior angle postulate justify angle 1 being congruent to angle 2
Answer:
Step-by-step explanation:
a
Seiji and Gavin both worked hard over the summer. Together they earned a total of $450. Gavin earned $50
more than Seiji.
(a) Write a system of equations for the situation. Use s for the amount Seiji earned and g for the amount
Gavin earned.
(b) Graph the equations in the system. Let the x-axis = Seiji and the y-axis = Gavin. (Complete the
numbering on the axis)
(c) Use your graph to estimate how much each person earned.
[a] If the total is 450 and Gavin (g or y) earned 50 more than Seiji (s or x) then we can create the following system:
{ s + 50 = g
{ g + s = 450
[b] See attached
[c] Gavin earned $250 and Seiji earned $200
Using the graph, we will look at where the points intercept. The x will be Seiji, and the y will be Gavin. Using this, we can see the answer is (200, 250) leaving Seiji with 200 dollars and Gavin with 250 dollars
(there is also a simpler way to do this, but as I was following the assignment I think this is what you need!)
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
If 3x−y=12, what is the value of 8x and 2y?
A) 212
B) 44
C) 82
D) The value cannot be determined from the information given.
Answer:
With the information that you provided it is D
Haru if you have more information you can repost and I will change the answer
Step-by-step explanation:
Answer:
A) 212
Step-by-step explanation:
y+6≠ 4
please help me
Answer:
[tex]y+6≠ 4 \\ y≠ 4 - 6 \\ y≠ - 2[/tex]
I know I'm in 8th grade but I have dyslexia and I don't learn like others I need help on the easiest way to divide :)
Answer:
Chunking is best for smaller numbers and arithmetic. Short division is great for dividing larger numbers by one digit numbers. Long division is handy for dividing large numbers by numbers with 2 or more digits.
Step-by-step explanation:
Calculate the Land Transfer Tax on a house for 248000
Answer:Calculate the Land Transfer Tax on a house for 248000
Calculation example
1.multiply $55,000 by 0.5% (55,000 × 0.005) = $275.
2.multiply the amount exceeding $55,000 up to $250,000 by 1.0% (195,000 × 0.01) = $1,950.
3.multiply the amount exceeding $250,000 up to $400,000 by 1.5% (150,000 × 0.015) = $2,250.
Step-by-step explanation:
FAST NOW! HELP ASAP
GET RIGHT YOU GET BRAINIEST
Answer:
21 inches squared
Step-by-step explanation:
i think thats the answer???
Answer:3x7=21
Step-by-step explanation:
multiply 3x7 and its 21
find the domain, in interval notation.
Judging by the image the function graphed has an asymptote at x = 3 and extends forever to -infinity along the x axis.
so the answer would be - infinity not included (because infinity is a concept not a number) to +3 not included because the function infinitely approaches x = 3. this is (-∞,3) in interval notation.
I’d like to understand this problem broken down into steps that are easily understood
-2x+7=3-(-2x)
Answer:
X = 1
Step-by-step explanation:
-2x + 7 = 3 - ( -2x)
-2x + 7 = 3 +2x (- - = +) (+ + = +) and (different signs always negative: - + = -)
(any term or numbers moved from one side of the = sign goes from negative to positive or from positive to negative, from multiplying to dividing and from dividing to multiplying. First isolate the additions or subtractions.)
-2x + 7 = 3 + 2x
-2x + 7 - 3 = 2x
-2x + 4 = 2x
4 = 2x + 2x
4 = 4x (a number next to a letter is multiplying. It goes to the other side of the equation dividing)
4 /4 = x
X = 1
-2x + 7 = 3 - (-2x)
-2x + 7 = 3 + 2x
-2x - 2x = 3 - 7
-4x = -4
x = 1
Midpoints
H is the midpoint of iJ, and IH, = 0.75. What is the value of HJ?
IH + HJ = 2 (IH)
0.75 + HJ = 2(0.75)
0.75 + HJ = 1.5
HJ = 1.5 - 0.75
HJ = 0.75
Jerome has $11 for his lunch. Mini hamburgers cost $2 each and fries cost $1. Write and solve an equation to determine how many mini hamburgers Jerome can buy if he orders a single order of fries.
please help
Answer:
8 Dollars for the hamburger and fry meal. then use the extra two dollars for a drink.
Step-by-step explanation:
33.33333333333 as a fraction?
Answer:
33/100
Step-by-step explanation:
Answer:
Step-by-step explanation:
3333333333333 / 100000000000
What is the constant in this
expression?
8x – 2 - 6x^3
Answer:
Step-by-step solution :
STEP
1
:
Equation at the end of step 1
(23x2 - 6x) - 3
STEP
2
:
Trying to factor by splitting the middle term
2.1 Factoring 8x2-6x-3
The first term is, 8x2 its coefficient is 8 .
The middle term is, -6x its coefficient is -6 .
The last term, "the constant", is -3
Step-1 : Multiply the coefficient of the first term by the constant 8 • -3 = -24
Step-2 : Find two factors of -24 whose sum equals the coefficient of the middle term, which is -6 .
-24 + 1 = -23
-12 + 2 = -10
-8 + 3 = -5
-6 + 4 = -2
-4 + 6 = 2
-3 + 8 = 5
-2 + 12 = 10
-1 + 24 = 23
Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored
Final result :
8x2 - 6x - 3
44:53
Ellen makes and sells bookmarks. She graphs the number of bookmarks sold compared to the total money earned. What is the rate of change for the function graphed to the left?
Answer:
Given coordinates on the graph is (4,0), (8,10), (12,20).
We need to find the rate of change for the function graphed.
Actually rate of change is the second name of slope.
So, we need to find the slope between given coordinates.
We know slope formula
Let us choose first two coordinates (4,0), (8,10).
(x1,y1) = (4,0) and (x2,y2) = (8,10).
Plugging values of x1,x2,y1 and y2 in slope formula, we get
Slope=
Therefore, rate of change is 5/2 or $2.5 earned per bookmark sold.
Step-by-step explanation:
PLz Mark as Brainliest
a x + 2 d = 2 c x + 5 b
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
Please help haha imm failing math 5(x−2 2/5)=−5.2
Answer:
x= 1.36
Step-by-step explanation:
Answer:
Step-by-step explanation:
5(x−2 2/5) = −5.2
1. We need to use distibutaive property
5×x and 5×-2.4
5x - 12 = -5.2
2. We need to get x alone.
5x - 12 = -5.2
-12 -12
5x = 6.8
3. We need to divide
5x = 6.8
/5 /5
x = 1. 36
check:
5(1.36−2 2/5)=−5.2
6.8 - 12 = 5.2
y= -2x+5 what is the answer
Answer:
???
Step-by-step explanation:
What is x, if you know what x is maybe I could help you?!?
Answer:
x=5/2
Step-by-step explanation:
y= -2x + 5
0 =-2x+5
2x=5
Graph the piecewise function
f(x)= {-2x-3 if -1
plz help
25pts and brainliest
Answer:
A
Step-by-step explanation:
[tex]\frac{7}{8}.(- 16).(- 7).(- \frac{1}{14}) \\\\\\\ 7.(- 2).\frac{7}{14} \\\\\\\ 7.(- 2).\frac{1}{2} \\\\\\ 7.(- 1) \\\\ - 7[/tex]
I hope I've helped you.
Jared predicted that the number of mango trees, x, planted in a farm could yield y = (x + 40)² + 60 mangoes per year. If you will graph the number of mango trees, planted per year what is the turning point? *
a. (-4,6)
b. (4,6)
c. (40,60)
d. (-40,60)
Answer:
the option d is the correct answer
I'll GIVE BRAINLY!! PLZ EXPLAIN
Solve the following quadratic function by utilizing the square root method.
y=16-4x^2
Answer: y = 14x^2 + 16
Step-by-step explanation: Sorry if it wrong and plz let me know.
Answer:
The answer is x= 4 root
Step-by-step explanation:
because 16-4^2, now 4^2=16 because 4x4, so 16/4= 4 which is x, but rooted
1 1\4-2\7 show your work
Answer:
27/28
Step-by-step explanation:
You would have to find the LCM of 4 and 7, which is 28. Then you multiply the numerators by the same number you multiplied on the denominator. You would then get 1 7/28 - 8/28 = 35/28 - 8/28 = 27/28.
if a cylinder with a radius of 2cm has a volume of 314cm^3, what is the height of the cylinder? assume 3.14 for pi
Answer:
25 cm
314 cm^3 = 3.14 × 2^2 × h
h = 314 ÷ 4 ÷ 3.14
h = 25 cm
Select each equation which is equivalent to 60% of 25.
0.6 • 25 = x
x • 1.6 = 25
610=x25
60100=25x
x25=60100
6.0 • 25 = x
Answer:
answer is 0.6 x 25 = x
Step-by-step explanation:
to find % of number, you simply just need to convert the percent to a decimal, which is done by division of 100.
60 / 100 = 0.6
2 2/3 divided by 1 3/5?
Answer:
1.67 or 5/3
Hope this helps
Answer:
1 2/3
Step-by-step explanation:
First:
Convert any mixed numbers to fractions.
Then your initial equation becomes:
[tex]\frac{8}{3}[/tex] ÷ [tex]\frac{8}{5}[/tex]
Applying the fractions formula for division,
= [tex]\frac{8}{3} x \frac{5}{8}[/tex]
=[tex]\frac{40}{24}[/tex]
Simplifying 40/24, the answer is
1[tex]\frac{2}{3}[/tex]
Hope this helps!!! :)))
find the values for c and d that make the function differentiable:f(x) = 5x^2 + c if x = or < than 3dx^2 - 3 if x > 3
9514 1404 393
Answer:
c = -3; d = 5
Step-by-step explanation:
The function is differentiable if it is continuous and the derivative is continuous.
This function will be continuous if the limit as x approaches 3 from either side is the same. From the left, the limit is ...
5(3^2) +c = 45 +c
From the right, the limit is ...
d(3^2) -3 = 9d -3
__
The derivative will be continuous if the limit as x approaches 3 from either side is the same. From the left, the limit is ...
f'(x) = 10x
= 10(3) = 30
From the right, the limit is ...
f'(x) = 2dx
= 2d(3) = 6d
__
This gives us a pair of simultaneous equations in 'c' and 'd':
45 +c = 9d -3
6d = 30
The latter tells us d = 5. Then the former tells us ...
45 +c = 9(5) -3 ⇒ c = -3
The function is differentiable if c = -3 and d = 5.
_____
Additional comment
With these values, the function becomes ...
[tex]f(x)=\begin{cases}5x^2-3&\text{if }x\le 3\\5x^2-3&\text{if }x>3\end{cases}[/tex]
