Answer:
s part a i don't know what the question is asking, I think n n n the are the same equation
a part b is 9
p
Step-by-step explanation:
I know that 5*9 equals 45 so basically it turns into
5(9)=45
45+2=47
dsan168
Please help!! Will give brainliest! I need the steps too
Answer:
Day 44
Step-by-step explanation:
Given function:
[tex]f(t)=500t^2[/tex]
where:
f = number of daily hitst = times (in days)To find the day on which the number of daily hits reaches 1,000,000, set the function to 1,000,000 and solve for t:
[tex]\begin{aligned}f(t) & =1000000\\ \implies 500t^2 & = 1000000\\ t^2&=\dfrac{1000000}{500}\\ t^2 & = 2000\\ t & = \pm \sqrt{2000}\\ t & = \pm 44.72135955...\end{aligned}[/tex]
As time in positive, t = 44.72135955 only.
This tells us that the number of daily hits reaches 1,000,000 during the 44th day.
After a heavy rainstorm, Barbara's dog left muddy paw prints all over her back patio. She decided to rent an electric
pressure washer to clean up the mess. The piecewise function below shows the rental charges for the pressure
washer, dependent upon how many hours she rents it. Due to high demand, you cannot rent the washer for more
than 24 hours at a time. Barbara's brother asked to use the washer and agreed to pay Barbara for any additional
monies owed.
(26,0
y= {26 + 5% - 4),4
60,8
If Barbara used the washer for 3 hours and her brother returned it to the store 7 hours after she rented it, how much
does her brother owe her?
$15.00
O $41.00
$60.00
$61.00
Answer:
$15.00
Step-by-step explanation:
Just did the quiz
By evaluating the piecewise function, we will see that the brother owes $15.
How much does her brother owe her?
The piecewise function is:
y = 26, if 0 < h < 4
y = 26 + 5*(h - 4), if 4 < h < 8
y = 60, if 8 < h
Barbara uses it for 3 hours, so we only need to use the first part for her, so she needs to pay $26.
Then the brother uses it for 4 hours (and we need to add the 3 hours that Barbara used it, so we have h = 7).
Then for the 7 hours the two brothers need to pay:
y = $26 + $5*(7 - 4) = $41
If we subtract the part that Barbara needs to pay we get.
$41 - $26 = $15
This means that the correct option is $15.
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A cube of side 14 cm is surmounted by a hemisphere. What is the greatest diameter the hemisphere can have? Find the surface area of the solid?
Answer:
Greatest diameter of hemisphere = 14 cm
Surface area of solid = 1330 cm²
Step-by-step explanation:
Side of the cube (a) = 14 cm
If a cube is surmounted (placed right over its top) by a hemisphere, then that means that the greatest diameter of the hemisphere will be equal to the measure of the edge of the cube (a cube has equal sides). Hence, the greatest diameter of the hemisphere is 14 cm & the radius (r) will be 14/2 = 7 cm (radius = ½ diameter)
Now, we need to find the surface area of the solid.
Here, the solid comprises of a cube & a hemisphere sharing a same circular base area. Hence,
Surface area of the solid
= Surface area of cube + Curved surface of hemisphere - Circular base area
= 6a² + 2πr² - πr²
= 6a² + πr²
= 6(14)² + 22/7×(7)² [π = 22/7]
= 1176 + 154
= 1330 cm²
[tex]\rule{150pt}{2pt}[/tex]
NOTE:
Refer to the attached picture to see how a hemisphere is surmounted on top of a cube.
[tex]\rule{150pt}{2pt}[/tex]
Please find attached herewith the solution of your question.
If you have any doubt, feel free to ask.
solve: 3/5x +30 is ≥ 150
Answer: x>=200
Step-by-step explanation:
Anna ordered a large pizza with 2 toppings. What was the total cost of her pizza? Show your equation and the total cost.
Answer: $15.49.
Step-by-step explanation: So far, her pizza already costs $13.99 because she chose large. However, she also ordered two toppings for $0.75 each, which is $1.50. We need to add $13.99 and $1.50 to find out the total cost of her custom pizza.
$13.99 + $1.50 = $15.49.
Therefore, the total cost of her pizza is $15.49.
Have a great day! :)
Solve the equation (x-2)(3x-1)=0
x=2
_______
x= [tex]\frac{1}{3}[/tex]
(4 questions) Is 8km greater than 8000mm? Is 50km greater than 5000m? Is 10m greater than 100cm? (last one) Is 4mm greater than 40cm?
Answer:
1. 8000mm is the same as 8 metres. So 8km is greater than 8000mm
2. 5000m is the same as 5 km. So 50 km is greater than 5000m
3. 100cm is the same as 1 m. So 10m is greater than 100cm
4. 40 cm is the same as 400mm. So 4mm is less than 40cm.
in a sale the normal price of a boat is 15%, the sale price of the boat is £272000, work out the normal price of the boat
Step-by-step explanation:
normal 100 part sale 15 part saple price 85 part
85/100 = 272000/normal price
normal price = 272000 × 100/85
= 320000
Answer:
312800
Step-by-step explanation:
You could do 272000 times 15% then add the discount price
which is 272000 + 40800 = 312800
Please
Solve!
For the Perimeter and Area
I can see if the answer is correct or not by putting the answer in the box.
The user that is correct will get brainliest! If someone else answers!
PLEASE HELP!!!! I’LL GIVE BRAINLIEST!
use vertical angles to find the value of x.
Answer:240
Step-by-step explanation: ×/6 =40
Multiply both sides by 6
× is 240
The cutoff point for the p-value area is called the:.
Answer:
It is called the test statistic
Step-by-step explanation:
Hope this helps:)...if not then sorry for wastign your time and may God bless you:)
What percent of the time did Mountain View get at least 4,000 visitors?
In the coordinate plane, what is the distance between the points (- 2, 3) and (4, 0) HELP
Answer:
Exact Form:
3√5
Decimal Form:
6.70820393
Step-by-step explanation:
Answer:
Distance = 3√5 or 6.708203932,,,
Step-by-step explanation:
Find the distance between the y-values and x-values which in this case would be 6 and 3. Use the Pythagorean theorem.
[tex]3^2 + 6^2 = 45[/tex]
Simplify.
[tex]\sqrt{45} = 3\sqrt{5}[/tex]
Ty earns a base rate of $12 an hour and receives a weekly attendance award of $20. He works 40 hours this week. What would be his total compensation for the week
Ty total compensation for the week where he earns a base rate of $12 per hour and receive a weekly attendance award of $20 is $500.
What is rate ?Rate is the ratio between two related quantities in different units.
Therefore, he earn a base rate of $12 per hour and receives a weekly attendance award of $20.
If he works 40 hours a week, his compensation will be as follows:
let
y = total compensation
x = number of hours worked
Hence,
y = 12x + 20
y = 12(40) + 20
y = 480 + 20
y = $500
Therefore, Ty total compensation is $500.
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b) Work out (7 x 10^5) x(9x 10^7)
Give your answer in standard form.
Answer:
3,500
Step-by-step explanation:
700,000/200
7,000/2
3,500
kindly answer it....
Answer:
1. 360 km
2. 2 seconds
Step-by-step explanation:
Question 1Formula
distance = speed × time
Given:
speed = 120 km/htime = 3 hours⇒ distance = 120 × 3 = 360 km
----------------------------------------------------------------------------------
Question 2Given:
initial velocity (u) = 0 m/sfinal velocity (v) = 20 m/sacceleration (a) = 10 m/s²To find time (t), use the SUVAT equation: v = u + at
⇒ 20 = 0 + 10t
⇒ 20 = 10t
⇒ t = 20/10
⇒ t = 2 s
is √16 rational or unrational?
Answer:
Rational number
Step-by-step explanation:
√16 is Rational number simply because its value is 4, which can be expressed as a Ratio of Two Numbers
which equation represents the line through (4, -6) (0, 2)
Answer:
[tex]y=-2x+2[/tex]
Step-by-step explanation:
Firstly we need to find the gradientWe can do this with [tex]\frac{\triangle y}{\triangle x}[/tex] ([tex]\frac{change\ in\ y}{change\ in\ x}[/tex])[tex]\frac{2--6}{0-4}[/tex][tex]\frac{8}{-4}=-2[/tex]So far we have [tex]y=-2x+c[/tex]Choose one of the pairs of coordinatesI’ll choose (0,2)[tex]2=c[/tex]So your equation is [tex]y=-2x+2[/tex]Answer:
y = -2x +2 I think
Step-by-step explanation:
Urgent !!!
What does the absolute value of the correlation coefficient say about the predictions in part B? How do you know? Write an explanation of about one to two sentences
Part B attached
The line of best fit shows that Luther can expect the speed to be 51 miles/hour when he throws 80 pitches and 64 miles/hour when he throws 54 pitches.
How to calculate the speed?The average speed of Luther's pitches when he throws 80 pitches will be:
y = -0.511x + 91.636
= -0.511(80) + 91.636
= 50.756
= 51
Also, the number of pitches that Luther can throw when the speed is 64 miles per hour will be:
y = -0.511x + 91.638
64 = -0.511x + 91.638
0.511x = 91.638 - 64
0.511x = 27.636
x = 54
Therefore, the number of pitches will be 54.
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If 2 dozens of eggs cost #300. How much will 5 eggs cost?
answer:62.5
a dozen=12 eggs
12× 2 eggs=300
5 eggs=x
cross multiply
24x=1500
thus x=62.5
How many different ways can 1 committee of 5 students be selected from a class of
25?
Answer:
125 ways
Step-by-step explanation:
5 x 25 = 125
Hope this helps!
The top of the table can be modeled with a cylinder, and the legs can be modeled with rectangular prisms. Estimate the amount of paint needed to cover all parts of the table, to the nearest square inch.
Answer:
A. 3,703 inches squared
Step-by-step explanation:
I took the test and got it right. #platofam
2. Cordasha is making her morning Starbucks run before school. She is buying
several coffees for her teachers. An Espresso costs $5.50 and a latte costs
$7.25. In total she spent $45.50 and bought a total of 7 types of coffees.
Write a system of equations that finds the amount of Espresso's and latte's
that Cordasha bought.
Answer:
x*5.5 + y* 7.25 = 45.5
x + y = 7
Step-by-step explanation:
every Espresso cost 5.5 => x*5.5
And the total cost is 45.5 so the sum should be 45.5
there are 7 coffees. means that the number of Espresso and latte is 7
HELP PLEASEEEEEEEE
Ashley's bus ride to school is 7/10 of a mile and Gavin's bus ride is 1/5 of a mile. How much longer is Ashley's bus ride than Gavin's?
help me please ,this is my school work and i need help .
Answer:
2-5f ≤ 52, so -5f ≤ 50
f≥-10, because we flip the sign when multiplying or dividing by a neg number for inequalities.
Draw a closed circle on -10 and in the direction all the way towards the right arrow.
A rectangular prism is 30 yards long, 29 yards wide, and 33 yards high. What is the surface
area of the rectangular prism?
square yards
The table below shows the gender and type of movies they prefer to watch.
What is the approximate probability that a person will be a female and prefer suspense movies?
Probability helps us to know the chances of an event occurring. The probability that a person will be a female and prefer suspense movies is 0.047.
What is Probability?Probability helps us to know the chances of an event occurring.
[tex]\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}[/tex]
The total number of people who were surveyed are:
Total Number of people = 82 + 94 +18 + 46 + 48 + 91 = 379
Also, it is mentioned in the table that the number of females who prefers suspense movies is 18. Therefore, the probability that a person will be a female and prefer suspense movies will be,
[tex]\rm Probability = \dfrac{\text{Number of females who prefers suspense movies}}{\text{Total Number of people}}\\\\Probability = \dfrac{18}{379} = 0.047[/tex]
Hence, the probability that a person will be a female and prefer suspense movies is 0.047.
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Calculate the cost (omit commission) of buying the 500 shares of Delta Air at $50.61.
Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. The cost of 500 shares of Delta Air is $25,305.
What is multiplication?Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. For example, 3 × 4 means 3 is added to itself 4 times, and vice versa for the other number.
The cost of a single share is $50.61, therefore, the cost of 500 shares will be,
Cost of 500 shares = 500 × cost of single share
= 500 × $50.61
= $25,305
Hence, the cost of 500 shares of Delta Air is $25,305.
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Kyle competes in 100 m wheelchair races. Hel
calculates the information below using his last 4
race times.
His minimum race time was 19.8 s.
The range of his race times was 5.6 s.
The median of his race times was 23.8 s.
The mode of his race times was 25.4 s.
If Kyle includes a new race time of 25.7 s in his
calculations, how much will the mean change
by?
Answer:
0.5s
Step-by-step explanation:
His initial mean would be calculated by:
His minimum race time = 19.8s
The maximum race time = 19.8 + 5.6 = 25.4s
Since the mode is also 25.4, there are 2 25.4s races.
Since the median is 23.8s and the number of race times is even, the final race time can be calculated by:
25.4- 23.8s = 1.6s
23.8-1.6 = 22.2s
So the race times are 19.8s, 22.2s, 25.4s and 25.4s.
This means that his initial mean was (19.8+22.2+25.4+25.4)/4 = (42+50.8)/4= 92.8 /4 = 23.2s
With the new race time, the equation will change to (92.8+25.7)/(4+1)= 118.5/5= 23.7s
So the mean change would be 23.7 - 23.2 = 0.5 s.
Hope this helps!
[tex]f(x) = 2^{x + 1} - 2^{x - 1} [/tex]
please help, we need to find the derivative, explain step by step
Note the derivative rule
[tex]\\ \boxed{\star\bf \dfrac{d}{dx}(x^n)=nx^{n-1}}[/tex]
Let's see
[tex]\\ \rm\Rrightarrow \dfrac{d}{dx}(2^{x+1}-2^{x-1})[/tex]
[tex]\\ \rm\Rrightarrow \dfrac{d}{dx}2^{x+1}-\dfrac{d}{dx}2^{x-1}[/tex]
[tex]\\ \rm\Rrightarrow (x+1)2^{x+1-1}-(x-1)2^{x-1-1}[/tex]
[tex]\\ \rm\Rrightarrow (x+1)2^x-(x-1)2^{x-2}[/tex]
[tex]\\ \rm\Rrightarrow (x+1)2^x-(x-1)2^x/2^2[/tex]
[tex]\\ \rm\Rrightarrow (x+1)2^x-(x-1)2^x2^{-2}[/tex]
[tex]\\ \rm\Rrightarrow 2^x(x+1-(x-1)2^{-2})[/tex]
[tex]\\ \rm\Rrightarrow 2^x(x+1-x/4-1/4)[/tex]