Answer:
550km/h
Step-by-step explanation:
v (speed) = d/t
v = 1375/2.5
v =550
What is 1000x45553x5305806x643598754?
Answer:
= 1.55554846 × [tex]10^{23}[/tex]
after a 20% increase, there was 48 marbles in the bag. how many marbles was in the bag originally?
Answer:
60
Step-by-step explanation:
Which of the following would be an appropriate scale to use on an 8 1/2 by 11 sheet of paper for a sketch of the room and carpet? 1 inch = 1 foot 1/2 inch = 1 foot 1 inches = 1 foot 2 inches = 1 foot
Answer:
1 foot = 2 inches
Step-by-step explanation:
This is the other question!
Step-by-step explanation:
I think the correct answer is false. true and true
Ms. Ramirez earns 250 each week plus 7% of any amount she sells. she earned 845 last week. How much did she sell ?
Answer:
8500
Step-by-step explanation:
That's my answer and thats correct brainliest me please trust me
Answer:
8500
Step-by-step explanation:
hope it helps you bro
7th grade math help me plzzzz
Answer:
the answer is 11 days
Step-by-step explanation:
if you placed the other choices for d it won't equal 160 but if you place 11 for d like this 380-20(11)= 160, multiply 20×11, you will get 220, then subtract 220 from 380, it will exactly equal 160. I hope I helped you
Can Anyone Help Me ??!?
Answer:
D
Step-by-step explanation:
this is a "strategic" guess
Different types of encoding affect a person’s ability to remember words. You can test this by asking a participant to first do a task involving either visual, auditory, or semantic encoding. Then ask the participant to recognize the encoded words. For example, for visual encoding, the participant may be asked to judge whether the word appears in all capital letters, whereas for auditory encoding, the participant may be asked to judge whether the word rhymes with another word.
A professor of cognitive psychology is interested in the percent accuracy on this memory encoding task among college students. She measures the percent accuracy for 49 randomly selected students. The professor knows that the distribution of scores is normal, but she does not know that the true average percent accuracy on this memory encoding task among college students is 0.794 percent correct with a standard deviation of 0.105 percent correct.
The computation of the data shows that the standard error is 0.015.
How to calculate the standard error?From the information, the following can be deduced:
Number of students n = 49
Randomly selected students = 0.794
The standard error will be:
= 0.105/✓49
= 0.105/7
= 0.015
In conclusion, the standard error is 0.015.
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f(x)=6x+4 find the inverse of f(x)
Answer:
(x+4)/6
Step-by-step explanation:
What you are trying to find now is what x equals. So first it's x=6y-4, then you solve for y algebraically.
Raspberries cost twice as much as blueberries. A B The prices of blueberries and raspberries represent proportional relationships. Cost (dollars) Raspberries Weight (lb.) Raspberries Select all of the graphs that could represent the cost of raspberries and blueberries. (Select all that apply.)
answer choices are in the attached picture
Answer:
I believe A and B
Step-by-step explanation:
C cant be it due to the blueberry price being more and I dont believe its D
Graph [1] will represent the cost of raspberries and blueberries perfectly.
What is the general equation of a Straight line?The general equation of a straight line is -
[y] = [m]x + [c]
where -
[m] → is slope of line which tells the unit rate of change of [y] with respect to [x].
[c] → is the y - intercept i.e. the point where the graph cuts the [y] axis.
The equation of straight line also represents direct proportionality as -
y = mx
m = y/x
[m] is constant of proportionality.
We have Raspberries (R) cost twice as much as blueberries (B). The prices of blueberries and raspberries represent proportional relationships.
We can write the relation as -
y[R] = 2 x[B]
Graph [1] will represent the cost of raspberries and blueberries perfectly. The slope of the line representing raspberry is 2 times that of blueberry.
Therefore, Graph [1] will represent the cost of raspberries and blueberries perfectly.
To solve more questions on straight lines, visit the link below-
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Which data set has a mode of 17 and a median of 16?
12, 12, 18, 13, 17, 15, 17, 17, 15
20, 19, 17, 18, 16, 13, 12, 13, 11
12, 13, 14, 15, 16, 17, 18, 20, 17
Answer:
12, 13, 14, 15, 16, 17, 18, 20, 17
The data set with mode 17 and median 16 is third data set.
What is Mode and Median?Mode of a data set is the value that occur most frequently in a data set.
Median of a data set is the element in the middle if the data are arranged in increasing or decreasing order.
Given are three data sets.
For the first one,
12, 12, 18, 13, 17, 15, 17, 17, 15
Mode = 17 [Since it is repeated most 3 times]
To find median, arrange in ascending order.
12, 12, 13, 15, 15, 17, 17, 17, 18
Three are 9 elements. The middle element is the 5th element.
Median = 15
For the second one,
20, 19, 17, 18, 16, 13, 12, 13, 11
Mode = 13 [ since it is repeated most, 2 times]
Arranging in ascending order,
11, 12, 13, 13, 16, 17, 18, 19, 20
Again the middle element is the 5th element.
Median = 16
Hence the correct option is third data set.
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2/3 devided by 3/4 plsss
Answer:
8/9 or 0.889
Step-by-step explanation:
Used a calculator
what is 8/4 as a mixed number
Answer:
[tex]2[/tex]
Step-by-step explanation:
[tex]\frac{8}{4}[/tex]
[tex]\mathrm{Divide\:the\:numbers:}\:\frac{8}{4}=2\\[/tex]
[tex]=2[/tex]
Cleaning pumps remove waste from a dump site at the rate modeled by the function R, given by r of t equals 3 plus 2 times the cosine of the quantity 2 times pi times t divided by 15 with t measure in hours and and R(t) measured in tons per hour. How much waste will the pumping stations remove during the 8 hour period from t = 0 to t = 8? Give 3 decimal places.
By integrating the rate, we will see that waste pumped from t = 0 to t = 8 is A = 24.279
How to get the waste pumped in that interval?
We have the function:
R(t) = 3 + 2*cos(2pi*t/15)
This is the rate at which the waste is removed, then the waste that the station pumps between t = 0 and t = 8 is given by:
[tex]A = \int\limits^8_0 {3 + 2*cos(2pi*t/15)} \, dt[/tex]
That integral gives:
[tex]A = \int\limits^8_0 {3 + 2*cos(2pi*t/15)} \, dt \\\\A = 3*(8 - 0) + 2*(15/2pi)*(sin(2pi*8/15) - sin(2pi*0/15))\\\\\\A = 24.279[/tex]
If you want to learn more about integrals, you can read:
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2x+4y = 4
solve for y
Answer:
y= −1 /2 x+1
Step-by-step explanation:
Let's solve for y.
2x+4y=4
Step 1: Add -2x to both sides.
2x+4y+−2x=4+−2x
4y=−2x+4
Step 2: Divide both sides by 4.
4y /4 = −2x+4 /4
y= −1 /2 x+1
Answer:
y= −1 /2 x+1
:14=15:21lololololol i have to put 20 characters lolol
Answer:
10
Step-by-step explanation:
x:14=15:21
14/21 = 2/3
Multiply each term by 2/3
15 *2/3 :21*2/3
10:14
The missing number is 10
Please help I will give brainliest
Step one answers:
1. Subtract
2. Distribute
3. Divide
4. Add
Step two answers:
1. Multiply by
2. Subtract
3. Divide by
4. Add
Step 3 answers:
1. Add
2. Subtract
3. Divide by
4. Multiply by
Step 4 answers
1. Multiply by
2. Add
3. Subtract
4. Divide by
Given the parent function f(x)=|x|, write the equation of the function g(x) whose graph is pictured
F(x) =|x|g(x)
G(x)= ????
By analyzing the graph of the transformed function, we can see that:
g(x) = 2*|x - 2| - 4
How to get the function g(x)?
In the image we have two graphs, the yellow one is the graph of g(x).
First, analyzing the vertex we can see the translation used, you need to remember:
Horizontal translation:
For a general function f(x), a horizontal translation of N units is written as:
g(x) = f(x + N).
If N is positive, the shift is to the left.If N is negative, the shift is to the right.Vertical translation:
For a general function f(x), a vertical translation of N units is written as:
g(x) = f(x) + N.
If N is positive, the shift is upwards.If N is negative, the shift is downwards.We can see that the new vertex is at (2, -4), so the translation is 2 units to the right and 4 units down, then we have:
g(x) = |x - 2| - 4
Now, you also can see that the yellow function is narrower, such that for each increase in the x-unit, we have an increase of 2 in the y-axis, then we need to multiply by 2 the absolute value part:
g(x) = 2*|x - 2| - 4
This is the transformed function.
If you want to learn more about transformations, you can read:
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can someone help me please
Answer:
B is the answer
Step-by-step explanation:
(10×2 +1/2)÷(2×4+1/4)
(21/2)÷(9/4)
Then calculate it and the answer is B
The base of a rectangular prism is 7 cm long,and 5 cm wide. If the surface area of the prism
is 310 cm², what is the volume of the
prism?
Answer:
V=280
Step-by-step explanation:
7·5=35
310\35 = 8.8
V=whl=5·8·7=280
50 is what percent of 275
50 percent of 275 is 137.5
Answer:
50 is 18.18% of 275
Step by step guide!
50 of 275 can be written as 50/275
To find percentage, we need to find an equivalent fraction with denominator 100. Multiply both numerator & denominator by 100
50/275* 100/100
= (50 * 100 /275) × 1/100 = 18.18/100
Therefore, the answer is 18.1818%
Which of the following would a scale be used to measure?
the distance between two points on a trail
the volume of water a fish tank can hold
the weight of a fish after it is caught
the length of a piece of wood for building a treehouse
The scale that can be used to measure is the length of a piece of wood for building a treehouse
What is measurement scale?Measurement is the comparison of an unknown quantity with a known quantity. Scaling is the assignment of objects to numbers
A measurement scale is used to qualify or quantify data variables during measurement.
The scale that can be used to measure is the length of a piece of wood for building a treehouse
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(HELP PLEASE) A molecule may contain two atoms of the same element.
True or False
Answer:
true
Step-by-step explanation:
molecules can have the two same atoms, hope this helps!!
Solve ax-5=19 for x. Assume a≠0.
Answer:
x = 24/a
Step-by-step explanation:
Answer:
x = 24/a
Step-by-step explanation:
ax-5=19
Add 5 to each side
ax-5+5=19+5
ax = 24
Divide each side by a
ax/a = 24/a
x = 24/a
16x5=? then its the answer to that question x 128 please help I need to get this right.
To investigate the influence of distracted driving, 13
volunteers were asked to participate in a study involving
a driving simulator. The participants drove at a safe
speed but were told to stop the car at a random moment
during the simulation. The scatterplot shows the reaction
time and the simulated car's stopping distance (in feet)
for each volunteer. The value of r for the scatterplot is
0.935.
Driving Reaction Times
How would the correlation change if the stopping
distances were recorded in meters, rather than feet?
O The value of the correlation coefficient would not
change.
O Since the points would be more spread out, the value
of the correlation coefficient would decrease.
O Since the number of meters would be less than the
number of feet, the value of the correlation coefficient
would increase.
© Since the number of meters would be less than the
number of feet, the value of the correlation coefficient
would decrease.
The value of the correlation coefficient remains the same when the unit is changed from feet to meters.
What is correlation coefficient?The term correlation coefficient is a measure of how much association there is between variables in a scatter plot. A high positive value of correlation coefficient means that there is a strong positive association between the variables and vice versa.
If we change the measurement unit from feet to meters, the value of the correlation coefficient will remain the same.
Learn more about correlation coefficient:https://brainly.com/question/12400903
Answer:
its a
Step-by-step explanation:
The tempature at 3PM was 16⁰C
Plot all this information on the graph.
B.The tempature rose by 4⁰C between two of the measurements.Write down the times of these measurements.
Write down the times of these 2 measurements.
.............. and
.................
Answer:
put a point at 16 for 3 pm, and the temperature rose by 4 degrees between 11 am and noon
Step-by-step explanation:
Help me out this is confusing. Just take these points..
I think there might be a mistake/typo. If the book had 385 pages, the answer would be 8,855. But it says the book has 365 pages, so the answer would be 8,395.
Reasoning:
It says to multiply the pages by 23, and it says there are 365 pages. When you multiple that, you get 8,395.
Therefore I think there was a mistake when writing the question.
Answer:
I'm not sure what going on with that, just email your teacher ig
Step-by-step explanation:
If Mrs. Coates uses 10 scoops of baking soda for
every 15 cups of water in her science experiment. She
uses a total of 45 cups of water. How many scoops of
baking soda does she need?
An attorney charges a fixed fee on $250 for an initial meeting and $150 per hour for all hours worked after that. Write an equation in slope-intercept form. Find the charge for 26 hours of work.
Answer:
y=150x+250
Charge: $4,150
Step-by-step explanation:
Set the number of hours the attorney worked equal to x and the total amount of money he charges equal to y. If he charges 150 dollars an hour, then the amount of money he charges would be 150 dollars multiplied by the number of hours he worked. Thus, y=150x.
Next, it is known that the attorney also charges a fixed rate of 250 dollars for the initial meeting, so we have to add that to the amount of money he makes each hour, as it is a flat rate. Thus, y=150x+250.
Finally, if the attorney worked for 26 hours, we would then plug that number into the equation we created for x, the number of hours worked. Thus the total charge of the attorney would be $150 multiplied by 26 hours, $3900, and then adding the $250 flat rate for the initial meeting, for a grand total of $4,150.
Hope this helps!