Hey there!
2x^2 - 5 / x + 9
= 2(-1)^2 - 5/ -1 + 9
= (2(-1)^2 - 5) / (-1 + 9)
= (2(1) - 5) / 8
= (2 - 5) / 8
= -3 / 8
≈ -0.375
Therefore, your answer is:
-3/8 OR -0.375
EITHER OF THOSE SHOULD WORK BECAUSE THEY ARE EQUIVALENT TO EACH OTHER!
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
A principal of 4600$ is invested at 9% interest, compounded annually. How much will the investment be worth after 12 years?
Answer:
$12,938.26
Step-by-step explanation:
The equation for solving this is:
A = P(1+r/n)^nt
P = 4600
^ initial amount/principal
R = 0.09
^ rate (9% converted to a decimal)
n = 1
^ how often it is compounded (yearly, so it is 1)
t = 12
^ how long the investment is for (in years)
A = 4600(1.09)^12
A = 12,938.26
^ rounded to the nearest hundred, because when dealing with money it has to be rounded to the nearest hundred. Un-rounded the answer is 12938.2579962.
The investment will be worth $12,938.26 after 12 years.
Please help me I really need it. Please leave how to solve it too thank you.
Step-by-step explanation:
just look at the line.
the distance between 2 whole numbers is split into 1/2, then each 1/2 again into 1/2 = 1/4, and then every 1/4 again into 1/2 = 1/8. so, in total, we are dealing with 8 segments of 1/8 length.
now we count : we have a full 1, and then on the way to 2 we get only 5 units of 1/8 = 5/8.
so, in total the number is
1 5/8
Find the missing number 3+=5?
Answer:
2.
Step-by-step explanation:
We can view this problem as 5-3=?.
5-3=2
So the missing number is 2.
Solve the following equation, answer as a reduced, mixed number. Then place the correct number in the box provided. 4(7 - 3x) = 7(4 - 2x)
Answer:
x = 0
Step-by-step explanation:
4(7 - 3x) = 7(4 - 2x)
28 - 12x = 28 - 14x distributed
28 + 2x = 28 added 14x to both sides
2x = 0 subtracted 28 from both sides
x = 0 divided both sides by 2
Step-by-step explanation:
Middle-school students sold cookies in packages of 12. On the first day, they sold x packages. On the second day, they sold twice as many packages as on the first day. Which expression shows the number of cookies they sold on the second day
Answer:
2x
Step-by-step explanation:
As the question says that the students sold twice the cookies on the second day ans the expression for the first day is 'x' so the expression for second day is 2*x='2x'
Carmen’s dog needs medication. She told the veterinarian that the dog sighs 50lbs. The medicine is measured as 14 mg for each kilogram of the animals mass. How much medicine should be given to Carmen’s dog?
Answer:
317.5144mg
Step-by-step explanation:
50 lb=22.6796 kg
22.6796*14=317.5144
Which of the following represents e5 rounded to the nearest thousandth?
Answer:
C. 148.413
Step-by-step explanation:
Hope it helps!!!
Brainliest pls!!!Answer: c
Step-by-step explanation:
2 math questions please help
Answer:
Step-by-step explanation:
2)Cos²x - Sin² x = √2/2
Cos²x - Sin² x = Cos 2x
⇒ Cos 2x = √2/2
General solution for Cos 2x = √2/2 is
[tex]2x = \dfrac{\pi }{4}+2\pi n \ ; 2x=\dfrac{7\pi }{4}+2\pi n\\\\\\x = \dfrac{\pi }{2*4}+\dfrac{2\pi n }{2} \ ; \ x=\dfrac{7\pi }{4*2}+\dfrac{2\pi n}{2}\\\\\\x =\dfrac{\pi }{8}+\pi n ; \ x=\dfrac{7\pi }{8}+\pi n[/tex]
Option A
Answer:
See below for answers and explanations
Step-by-step explanation:
Problem 1
[tex]f(x)=5sin(\frac{x}{12})+14.5\\\\17=5sin(\frac{x}{12})+14.5\\ \\2.5=5sin(\frac{x}{12})\\ \\0.5=sin(\frac{x}{12})\\ \\\frac{x}{12}=\frac{\pi}{6}+2\pi n,\frac{5\pi}{6}+2\pi n\\ \\x=2\pi+24\pi n,10\pi+24\pi n[/tex]
Therefore, the fourth option is correct.
Problem 2
[tex]cos^2x-sin^2x=\frac{\sqrt{2}}{2}\\ \\cos(2x)=\frac{\sqrt{2}}{2}\\\\2x=\frac{\pi}{4}+2\pi n,\frac{7\pi}{4}+2\pi n\\ \\x=\frac{\pi}{8}+\pi n,\frac{7\pi}{8}+\pi n[/tex]
Therefore, the first option is correct.
Look at image………………………
Answer:
If I directly give you the answers they won't help you...so I've shown you how to do the questions instead
Step-by-step explanation:
8/9 + 5/6 (make them have the same denominator)
= 48/54 + 45/54
= 93/54 (make it a mixed fraction)
1 and 39/54
(The second and third one are done the same way... make them have the same denominator by using their equivalent fractions (e.g 1/2 = 2/4), add the numerators ONLY... simplify the result)
1 and 6/9 divided by 5/6
(make the first number an improper fraction)
1 x 9 + 6 = 15 (this is the numerator...the denominator remains the same)
15/9 divided by 5/6 (reciprocate the number after the division sign and then change the division sign to a multiplication sign)
15/9 x 6/5
(Then simplify. e.g the 5 in 6/5 can be divided by the 15 in 15/9)
3/9 x 6/1
(The 6 in 6/1 and the 9 in 3/9 have a common factor... 3)
3/3 x 2/1
(3/3 = 1)
1 x 2
=2
(The other questions are done in the same way... Make the mixed fraction an improper fraction(This means the denominator is larger than the numerator)... reciprocate the number after the division sign (This means flipping it (e.g 2/3 becomes 3/2) then change the division sign to a multiplication sign and either directly multiply the result or simplify it first by dividing numerators with denominators (e.g instead of 9/3 x 12/4 = 108/12 = 9, you could say 1 divided 3 = 4 thus 9/1 x 4/4 (which is = 1) thus 9 x 1 = 9). Either way you should get the same answer whichever way you choose.
PS: YOU COULD ALSO USE A CALCULATOR TO CONFIRM YOUR ANSWER
#1
8/9÷5/6=8/9×6/5=16/15#2
7/10÷12/25=7/10×25/12=35/25#3
2/3÷1/5=2/3×5=10/3#4
1-6/9÷5/6=15/9×6/5=2#5
2-3/4÷3/8=11/4×8/3=22/3help pleaseeeeee
1.) In the number 546,789, what digit indicates the value of "one hundred thousand"?
2.) What is the expanded notation of 8843?
3.) Write the following number in words: 38,403,277
Answer:
1.) 5
2.) 8,000 + 800 + 40 + 3
3.) Thirty-eight million, four-hundred and three thousand, two-hundred and seventy-seven.
Step-by-step explanation:
1.) In the number 546,789, what digit indicates the value of "one hundred thousand"? 5
2.) What is the expanded notation of 8843?
8,000 + 800 + 40 + 3
3.) Write the following number in words: 38,403,277
Thirty-eight million, four-hundred and three thousand, two-hundred and seventy-seven.
Hope this helps!
At a used book sale, the number of books bought and the price paid by five different customers is shown in the table below. Odin knows that there is a linear model that describes the relationship between the number of books bought and the price
Answer:
Part A= 0.5
Step-by-step explanation:
The formula A=3.14(R^2-r^2) , for R=45 mm and r=38mm , is ?
Answer:
1,824.34
Solving steps:
=> A=3.14(R² -r²)
=> 3.14(45² - 38²)
=> 3.14(2025 - 1444)
=> 3.14(581)
=> 1,824.34
You purchase 2 action figures per week. You have 48 action figures, which is 75% of the total number of action figures you need to complete your collection. How many weeks until your collection is complete?
Answer:
Step-by-step explanation:
Let the total number of action figures = x
75% of x = 48
[tex]\dfrac{75}{100}*x=48\\\\Multiply \ by \ 100\\\\75*x =48*100\\\\Divide \ by \ 75\\\\x=\dfrac{48*100}{75}\\\\\\x=16*4\\\\x= 64[/tex]
Remaining action figures need to be collected = total figures - number of action figures I have
= 64 - 48 = 16
Number of weeks = 16 ÷ 2 = 8
It will take 8 weeks to collect 16 action figures.
Evaluate the function at the given values.
h(x) = x² – 3x + 2
a. h(2)
b. h(-2)
c. h(0)
a. h(2)=
Answer:
h(2) =0
h(-2) =4
h(0) = 2
h(2) = 0
Step-by-step explanation:
h(2) = 2^2-3(2)+2 =4 - 6 + 2 = 0
h(-2) = 2^-2 -3(-2) +2 = -4+ 6+2=4
h(0) =0^2 - 3(0)+2 = 0-0 +2 = 2
h(2) = 2^2-3(2)+2 =4 - 6 + 2 = 0
Let $f(x) = 12x^9 + x$. Find $f(3) + f(-3)$.
Answer:
Ok, here goes: f(3) means take f(x) and plug in 3 wherever we see x. So
f(3) = 12*39 + 3 = 236196 + 3
f(3) = 236199
Likewise, f(-3) means take f(x) and plug in (-3) wherever we see x. So
f(-3) = 12*(-3)9 + (-3) = -236196 - 3
f(-3) = -236199
Putting those two things together, we get
f(3) + f(-3) = 236199 - 236199 = 0
Step-by-step explanation:
math help !!! could someone please explain how to find the answer
Help help math math math
Lets see some basics properties of shapes provided in the choices :
⧉ Pαrαllєlσgrαm ↬σppσѕítє ѕídєѕ αrє cσngruєnt αdjαcєnt αnglєѕ αrє ѕupplєmєntαrч ⧉ Rєctαnglє ↬❑ A spєciαl tчpє σf prαllєlσgrαm, with ѕαmє prσpєrtiєѕ
αll αnglєѕ mєαѕurє 90°⧉ Rhσmвuѕ ↬❑ A ѕpєcíαl tчpє σf pαrαllєlσgrαm wíth αll ѕídєѕ єquαl (cσngruєnt) tσ єαch σthєr вut αll αnglєѕ αrє nσt nєcєѕѕαrílч 90°
⧉ Squαrє ↬❑ A ѕpєcíαl kínd σf rhσmвuѕ hαvíng αll ѕídєѕ єquαl αnd єαch αnglє mєαѕuríng 90°
[tex]\rule{20cm}{1 mm}[/tex]
❖ Anѕwєr ~☘ So, what we can conclude from the properties is that square has all required properties asked by the question.
hence, the correct choice is ' D '
[tex]\qquad \qquad\huge \dag\normalsize \sf \boxed{ \underline{ǤríʍɌεαƿєr}} \: \huge \dag[/tex]
PLEASEEE HELP!!!! what’s the relation?
Answer:
ambisyoso
Step-by-step explanation:
yehey lala knows that you are you po Sir
Please can some one help me
Answer: So for Choice A 30% off $25 is $7.50 off or $17.50 which is 70% of the original price and you save 7.50 dollars.
Then for Choice B 25% off $32 is $8 off or $24 which is 75% of the original price and you save 8 dollars.
Therefor the better choice is Choice B.
Step-by-step explanation:
hope it helps
2000:$5 2015:$6.5 what is the percent change
Answer:
30%
Step-by-step explanation:
% of change = 100 x (6.5-5)/ | 5 |
(06.03 MC)
An archer shoots an arrow up towards a target located on a hill, which is shown by the graph.
A graph of a line and a parabola intersecting at (48.63, 10.7).
Which set of equations best models the point of intersection of the arrow and the target?
y = –0.004x2 + 0.25x + 8 and y = x
y = 0.004x2 + 0.25x + 8 and y = 0.22x
y = –0.004x2 + 0.25x + 8 and y = 0.22x
y = –0.004x2 + 0.25x + 8 and y = –x
The set of equation that models the point of intersection of the arrow
and the target is the option; y = -0.004·x² + 0.25·x + 8 and y = 0.22·x
How can the given equations be analyzed?The given parameters are;
Point of intersection of the line and the parabola is the point (48.63, 10.7)
Therefore, the point (48.63, 10.7) satisfies both the equation of the
parabola and the equation of the line, which by plugging in the value x =
48.67 in the different parabolas, we have;
The first set;
y = -0.004 × 48.67² + 0.25 × 48.67 + 8 ≈ 10.7, which corresponds with the ordered pair.The linear function in the first set should be excluded, given y ≠ x in the
ordered pair.
In third set, y = -0.004 × 48.67² + 0.25 × 48.67 + 8 ≈ 10.7, while, from the
ordered pair, we have;
y = C·x
10.7 = 48.63·x
[tex]C = \dfrac{10.7}{48.63} \approx \mathbf{0.22}[/tex]
Therefore;
y ≈ 0.22·x
The set of equations that best models the point of intersection of the arrow and target are therefore;
y = -0.004·x² + 0.25·x + 8 and y = 0.22·xLearn more about the equation of a parabola here:
https://brainly.com/question/4294167
What is the diameter of this circle? AD c C Р E B
AB is the diameter of the circle
The longest chord in the circle is known as the diameter.AP is the radius and AB is its double so its diameter. As we know that, Diameter is 2× radius...~Your credit card has a limit of $9,500 and you have a current balance of $3,200. Answer the following questions using complete sentences: is the debt ratio more or less than 43%(if you could show work for this i would apricate it )
Answer:
Step-by-step explanation:
9500/3200=296.88% i believe i did it backwards at first sorry
Which product is positive
Answer:
Answer: It is number 4. You are correct.
Step-by-step explanation:
-2/5-8/91/32/7
Simplify the expression
5(k + 4) - 2k
Answer:
3k + 20
Step-by-step explanation:
5(k + 4) - 2k
First distribute
5k + 20 - 2k
Then subtract (combine) the like terms
3k + 20
Answer:
The answer is 3k + 20
Step-by-step explanation:
5k + 20 - 2k
Combine like terms: 5k - 2k = 3k
which makes your answer 3k + 20
Hope this helps:).......if not sorry for wasting time:)
how much money did she have at first
Step-by-step explanation:
x = the total money she had first.
x - x×1/4 - (x - x×1/4)×1/2 = 15
you see, first we needed to deduct 1/4 of x from x. that left us with (x - x×1/4). and from that we need to deduct 1/2.
now, we can simplify :
(x - x×1/4) = (x×4/4 - x×1/4) = x×3/4
x×3/4 - x×3/4 × 1/2 = 15
x×3/4 - x×3/8 = 15
we multiply both sides by 8 (4 is a factor of 8, so this handled both fractions perfectly) :
x×3×2 - x×3 = 120
6x - 3x = 120
3x = 120
x = $40
she had $40 at the beginning.
Please answer QUICKLY!!!
Answer:
the range is {7,5,1}
Step-by-step explanation:
To find the range, just plug in the domain into the function.
f(-1) = -2(-1) + 5 = 7
f (0) = -2(0) + 5 = 5
f(2) = -2(2) + 5 = 1
A group of 180 students is divided into 20 teams for a competition. b. Part way through the competition, the students are gathered together and divided into 15 teams. If there are still 180 students in the competition, how many students are on each team now? (Enter your answer as a whole number. For example, 5)
Answer:
12 people per team
Step-by-step explanation:
180/15=12
A dance studio is purchasing tutus for an annual performance. The table represents the number of tutus available for different prices. What is the difference between the unit price of the LEAST EXPENSIVE DEAL and the unit price of the MOST EXPENSIVE DEAL?
Answer: 8
Step-by-step explanation:
420/12 is 35
540/20 is 27
35-27=8
What's the answer?????
Answer:
0
Step-by-step explanation:
basically plug a and b back into the equation so (0)÷(48) will equal 0 which is equal to C because 0 out of any number is always equal 0 because you're not taking taking any value out of it
Answer:
Step-by-step explanation:
zero is always a nasty piece of work. You need to be careful how you handle it. What do you get when you divide 0 by 48?
Answer, you don't get anything because no matter if b is 1 or 48, you get 0 as the result.
Answer: B