Answer:
The answer would be A)
Step-by-step explanation:
3^-2 = 1/9
5^-2 = 1/25
1/9 * 1/25 = 1/225
15^2 = 225
meaning,
3^-2 * 5^-2 = 1/15^2
Hope this helps yo! :)
The ratio of right-handed to left-handed people in a coffee shop is 16:4.
What fraction of people are left-handed? Give your answer in its simplest form.
Answer:
1/5
Step-by-step explanation:
There is a total of 20 people. 4 out of 20 of them are left-handed. 4/20 simplified is 2/10. 2/10 simplified is 1/5.
A bad punter on a football team kicks a football approximately straight upward with a velocity 90 ft/sec. The height h (in feet) of the ball t seconds after being kicked is given by h = –16t2 + 90t + 4. Find the time(s) at which the ball is at a height of 90 feet. Round to one decimal place.
The time it will take the ball to reach a height of 90feet is 1.2 and 4.4secs
How to calculate the height of a ballGiven the height h (in feet) of the ball t seconds after being kicked expressed as:
h = –16t2 + 90t + 4.
If the ball is at a height of 90feet, hence:
90 = –16t2 + 90t + 4
–16t2 + 90t + 4 - 90 = 0
16t^2 -90t + 86= 0
8t^2 -45t + 43= 0
Factorizing the result to get the values of t:
[tex]t=\frac{45 \pm \sqrt{45^2-4(43)(8)} }{16} \\t=\frac{45 \pm \sqrt{2,025-1376} }{16} \\t=\frac{45 \pm {25.47}}{16} \\t=4.4s \ and\ 1.22secs[/tex]
Hence the time it will take the ball to reach a height of 90feet is 1.2 and 4.4secs
Learn more on quadratic function here: https://brainly.com/question/25841119
f(x) = 7x+2 what's the value of f(7)
Find the values of X and Z
Answer:
x = 12, z = 109
Step-by-step explanation:
12x - 73 = 71
12x = 71 + 73 = 144
x = 144/12 = 12
z = 180 - 71 = 109
Graph the parabola that has the following properties:
Vertex (0.1)
x-intercept = none
y-intercept = 1
Direction of opening is up
ABC def ghi jkl mno pqr stu vwy z
3,100 x 1/10 what is the value of the expression?
Answer:
310
Step-by-step explanation:
1/10=0.1
3100 x 0.1=310
What is the median of the following string of values?
Answer:
the value is 52
Step-by-step explanation:
pls brain list me
Tito's taxi charges $6,26 fee for a ride plus $2.75 for each additional mile. Write an
expression that gives the cost for a trip of d miles?
a) Algebraic Expression:
b) How much would it cost to travel 23 miles?
Answer Sentence:
Answer:
A. ok so lets make a alebra equation
2.75d+6.26
first of all they charge a certain amount per mile so thats why we multiply that by the number on miles then we add the base price of 6.26
B. ok so lets just plug in
77.76
Hope This Helps!!!
(a)
Given the info that Tito charges a $6.26 fee for a ride plus $2.75 for every ride, we derive
Y is the amount of money in total
X is the amount of miles for each ride
Algebraic Expression: Y=2.75X+6.26
(b)
Plugging in 23, we get
Y=2.75(230+6.26
Y=69.51
Answer Sentence: It would take $69.51 to travel 23 miles on TIto's taxi.
-Hunter
Help please 10 points
Find the difference
(2/7x-3) - (5/2+1/5y)
Step-by-step explanation:
Distribute the negative sign:
[tex]\frac{2}{7} x-3 -5/2-\frac{1}{5}y[/tex]
From the given, we can only find the difference with the integers.
Subtract the integers:
[tex]\frac{2}{7} x-\frac{1}{5}y-0.5[/tex]
The length and breath of a rectangular garden are 2m 60cm and 4ft 8in respetively.find the diferences between the length and the breath in ft
Answer:
2m 60cm-4ft 8in=1.1776 meters which in feet
3.86351706 ft
Hope This Helps!!!
Question 8 of 13
The table below represents the closing prices of stock ABC for the last five
days. Using your calculator, what is the equation of linear regression that fits
these data?
Day
1
2
Value
24.31
23.31
23.01
23.16
23.27
4
Un
5
O A. y=-0.147x + 19.217
O B. y=-0.223x + 24.081
O c. y = 0.194x - 24.815
O D. y=-0.237x + 25.139
SUBMIT
Linear regression are used to represent scatter plots
The linear regression equation is: [tex]y = -0.223x + 24.081[/tex]
How to determine the linear equationStart by entering the table values in a graphing calculator.
From the graphing calculator, we have the following calculation summary
Sum of X = 15Sum of Y = 117.06Mean X = 3Mean Y = 23.412Sum of squares (SSX) = 10Sum of products (SP) = -2.23Hence, the linear regression equation is:
[tex]y = -0.223x + 24.081[/tex]
Read more about linear regression at:
https://brainly.com/question/25987747
The line of best fit is y = -0.223x + 24.081
Linear equation
A linear equation is in the form:
y = mx + b
where y, x are variables, m is the slope of the line (rate of change) and b is the y intercept (initial value of x).
Plotting the values of the table using geogebra online graphing tool, the line of best fit is y = -0.223x + 24.081
Find out more on Linear equation at: https://brainly.com/question/14323743
I need help figuring out what the area is of the given shape
Answer:
15ft square
Step-by-step explanation:
Area of triangle =1/2b×h
=1/2×6ft×5ft
=1/2×30ft square
=15ft square
I want question 9 answered I’ll give you brainliest
Tyler orders a meal that costs $15
the sales tax in tyler’s county is 6.6%
how much will the sales tax be on tyler’s meal?
Answer:
0.44
Step-by-step explanation:
Divide the percent with the original price to get your answer
How do I solve other problems like this?
y=mx+b
Answer:
y = -2x - 3
Step-by-step explanation:
in the equation y = mx + b,
m = slope b = y-intercept
The y-intercept is provided in the point, (0, -3), because that is where it crosses the y. You're y-intercept is -3
Now you need to find slope. You need to find the difference between these two points to find slope.
[tex]-2+0 = -2[/tex]
[tex]1-3=-2[/tex]
so your slope is going down by 2 and to the left by 2.
Hope this helps! Might be wrong. Try with another example and tell me if it works. <3
Answer: B
Step-by-step explanation:
m is the value of the slope between the two points on the graph
If the two coordinates is (x1,y1) and (x2,y2), the slope is (y1-y2) / (x1-x2)
So the slope for this question is (1-(-3)) / (-2-0) = -2 so the answer is B
Which of the following statements is true, based on the graph?
O The distribution of favorite color is the same for each eye-color group.
O The group that had the highest percentage of those who like blue is the brown eye group.
The group that had the highest percentage of those who like red is in the hazel eye group.
The group that had the lowest percentage of those who like orange is the green eye group.
Answer:The distribution of favorite color is the same for each eye-color group.
Step-by-step explanation: A EDGE22
Which step is not part of the 5-point credit card debt elimination plan?
a.
calculate how much money you earn each month
b.
list all of your current credit cards
c.
add up all the amounts you have in the minimum payment column
d.
pay only the minimum amount on all credit cards
Please select the best answer from the choices provided
A
B
C
D
Answer:
It's D. I did the test and got it right.
Mitch bought 4.6 feet of fabric. Each foot cost $3.50. How much did he spend in all on fabric?
Answer:
$16.10
Step-by-step explanation:
He spent $16.10 in total. Because 3.5 x 4.6 feet = 16.1
Answer:
$16.10
Step-by-step explanation:
3.50 x 4.6 = 14 + 2.10
Can you please help me with this question????
Answer:
60
Step-by-step explanation:
because it is parallel then ,you can use alternate angles to look for answer.
with alternate angles you know that the other side of the h angles is 120°
so you should take 180°(a straight line fixed angle) -120° and get 60°.
the answer is x-2/3(x-3) but i need the explanation
Answer:
[tex]\frac{x-2}{3(x-3)}[/tex]
Step-by-step explanation:
The area of the shaded rectangle is [tex]A_1=\frac{x-2}{3}\times\frac{x+1}{4}[/tex]
The area of the large rectangle is [tex]A_2=\frac{x-3}{2}\times\frac{x+1}{2}=\frac{(x-3)(x+1)}{4}[/tex]
So the fraction is [tex]\frac{A_1}{A_2}=A_1\times\frac{1}{A_2}=\frac{x-2}{3}\times\frac{x+1}{4}\times\frac{4}{(x-3)(x+1)}=\frac{x-2}{3(x-3)}[/tex]
estimate the area of a circle with 28 cm
Answer:
[tex]A=784\pi[/tex]
Step-by-step explanation:
Calculate area of the circle:
[tex]A=784\pi[/tex]
Use the slope formula to find the slope of the line through the points (4,8) and (−7,6).
Slope:-
[tex]\\ \rm\longmapsto m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\\ \rm\longmapsto m=\dfrac{6-8}{-7-4}[/tex]
[tex]\\ \rm\longmapsto m=\dfrac{2}{11}[/tex]
24 is 3/4 of ___
Find the answer
Answer:
24 is 3/4 of 32.
Step-by-step explanation:
if you understand:
24 divided by 3 (3 in 3/4) is 8.
8 x 3 = 24, so if we need to fill in the extra 1 in 3/4 (making it 4/4), we would need to add another 8. 24 + 8 = 32. (u can look up ' what is 3/4 of 32 too ')
Would you prefer a fully taxable investment earning 8.1 percent or a tax-exempt investment earning 6.1 percent
Answer:
Assuming that all other factors are equal, (and they never are), I would prefer a 20% or more ROI investment, located in a tax deferred, or tax exempt account!
Assuming that you are for some reason entirely unmotivated to look for better investments than the two you have pointed out, why not just buy the 8.1% investment with your IRA, Roth IRA, 401(k), SEP IRA, or spousal IRA funds?
You can then pretty much ignore your tax rate. Just move over any portion of your standard deduction that remains unused near the end of the year, via a Roth conversion. You will pay no additional taxes, and the money converted will forever remain free of RMDs, (which will otherwise occur later on), for the rest of your life!
Step-by-step explanation:
Use your now freed up taxable money to invest in tax free transactions, (similar to the effect of having a periodic Roth IRA), and live happily ever after!
As always, upvote and follow me, either if you are entertained by my answers, or, if you are sufficiently curious to investigate my other answers posted on Quora, and realize that you COULD be making FAR MORE money with your investments than you have been!
Thank you for reading and I hope it helps
Travis spies an owl in a tall tree. He estimates the height of the tree to be 85 feet and the angle of elevation to the bird from where he stands to be 68°. The leaves on the tree make it difficult for Travis to watch the bird, so he takes several steps away from the tree to get a better view. He now estimates his angle of elevation to be 41°.
How many feet did Travis step back to gain a better view of the bird? Round your answer to the nearest hundredth of a foot.
Using the slope concept, it is found that he stepped back 63.44 feet.
What is a slope?The slope is given by the vertical change divided by the horizontal change.
It's also the tangent of the angle of depression.
Initially, we have that:
The vertical change is of 85 feet.The horizontal change is his distance d.The angle is of 68º.Hence:
[tex]\tan{68^{\circ}} = \frac{85}{d}[/tex]
[tex]d = \frac{85}{\tan{68^{\circ}}}[/tex]
[tex]d = 34.34[/tex]
When he stepped back, the angle was of 41º, hence:
[tex]\tan{41^{\circ}} = \frac{85}{d}[/tex]
[tex]d = \frac{85}{\tan{41^{\circ}}}[/tex]
[tex]d = 97.78[/tex]
97.78 - 34.34 = 63.44.
Hence he stepped back 63.44 feet.
You can learn more about the slope concept at https://brainly.com/question/26291396
Need help need help Fast
Answer:
920 cm^2
Step-by-step explanation:
There are 2 rectangles in the overall shape, find the areas of each rectangle... The first one is 800 and the second is 120 then we add those to make the whole shape: 920!
What 2 numbers add up to 5 and multiply to 4?
Answer:
1 and 4
Step-by-step explanation:
Products of 4:
1 and 42 and 2Pairs of numbers that sum to 5:
1 and 42 and 3Therefore, the two numbers that add up t o 5 and multiply to 4 are: 1 and 4
A cell phone plan charges $45.50 a month, plus $0.05 per text message. Write and graph an expression to find how many text messages, x, can be sent while still keeping the monthly bill under $60.
Answer:
289 messages
equation: [tex]y=0.05x+45.5[/tex]
graph: attached below
Step-by-step explanation:
We can write this in slope-intercept form, or [tex]y=mx+b[/tex]. Since x is defined as the #of text messages, and 0.05 is the cost of a text message, 0.05 will be m. 45.5 is the base price, or the y-intercept, so it will be b.
Plugging in these numbers, we get [tex]y-0.05x+45.5[/tex]
now we make y = 60, since that is the total amount they have
[tex]60=0.05x+45.5\\14.5=0.05x\\x=290[/tex]
So, they can send 290 messages for 60, but they need the bill under 60, so 1 text message less will be 289, and that's enough.
What is the volume of this sphere?
Use a ~ 3.14 and round your answer to the nearest hundredth.
6 m
Answer:
113.1
Step-by-step explanation:
Using the volume (for sphere) formula:
V = (4/3)*pi*(r^3)
You can plug in the radius (diameter/2, the diameter is 6m) to get a volume of 113.1.
Answer:
113.04m³
Step-by-step explanation:
[tex]Solution,\\\\Diameter(d)=6m\\\\Radius(r)=6m/2=3m\\\\Now,\\\\Volume=\frac{4}{3} \pi r^{3} \\\\Volume=\frac{4}{3} *3.14*(3m)^{3} \\\\Volume=113.04m^{3}[/tex]