Answer:
I'm pretty sure that would be 6.1 - considering negative numbers and positive numbers are opposites.
0.75% of 80 is what number
Answer:
i got it is 0.6. That is the number
Answer:
75 percent of 80 is 60....
Step-by-step explanation:
Please provide the answer
The radius of the circle is determined as r = 5.
option B.
What is the radius of the circle?The radius of the circle is determined by applying the general formula for circle equation.
(x - h)² + (y - k)² = r²
where;
h, k is the center of the circle r is the radius of the circlex, y are the coordinates of any point on the circleThe given circle equation;
4x² + 4y² = 100
Simplify the equation by dividing through by 4;
x² + y² = 25
x² + y² = 5²
So from the equation above, the radius of the circle corresponds to 5.
r = 5
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A human-factors expert recommends that there be at least 9 square feet of floor space in a college classroom for every student in the class. Find the minimum floor space that 18 students require.
A human-factors expert recommends that there be at least 9 square feet of floor space in a college classroom for every student in the class. The minimum floor space that 18 students require is 162 square feet.
What do you mean by human factor?
Environmental, organizational, and job elements as well as human and individual qualities that have an impact on behavior at work and could jeopardize health and safety are referred to as "human factors."
9ft²=1student
xft²=18 students
9ft² xft²
_______=_________
1student 18 students
Cross multiply
1x=162
divide both sides by 1
x=162ft²
Hence the correct answer is 162ft²
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What is the distance between point T (-5,1) and point I (-1,1)
The distance between point T (-5, 1) and point I (-1, 1) is 4 units.
To find the distance between two points, we can use the distance formula, which is derived from the Pythagorean theorem. The formula is:
Distance = √((x2 - x1)² + (y2 - y1)²)
Let's apply this formula to find the distance between point T (-5, 1) and point I (-1, 1):
x1 = -5, y1 = 1 (coordinates of point T)
x2 = -1, y2 = 1 (coordinates of point I)
Plugging these values into the formula, we have:
Distance = √((-1 - (-5))² + (1 - 1)²)
= √(4² + 0²)
= √(16 + 0)
= √16
= 4
Therefore, the distance between point T (-5, 1) and point I (-1, 1) is 4 units.
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A ladder is leaning against a building, forming a 70° angle with the ground: The base of the ladder is 8.2 ft from the base of the
building.
What is the length of the ladder?
Round your answer to the nearest tenth of a foot.
22.5 ft
24.0 ft
28.0 ft
28.7 ft
The length of the ladder that is leaning on the building would be = 24ft. That is option B.
How to determine the length of the ladder?To determine the length of the ladder, the sine rule needs to be obeyed. That is
= a/sinA = b/sinB
Where;
a = 8.2 ft
A = 180-( 70+90
= 180- 160
= 20°
b = X
B = 90°
That is;
8.2/sin20° = b/sin90°
Make b the subject of formula;
b = 8.2×1/0.342020
= 23.9
= 24 ft
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Jon has 4 shelves with 22 dinosaurs
Answer:
Whats the question?
Im guessing that its 4 shelves with 22 dinos in each so the question might be how many dinos in all?
22 x 4 = 88
Select the correct answer.
Alejandra is packing a bag for a flight. The airline has a baggage welght limit, and Alejandra has already packed her bag with some essentials. All
she has left is her outfits and shoes, which must weigh less than 30 pounds total.
If Alejandra estimates that one outfit welghs two pounds and one pair of shoes welghs three pounds, which graph represents the number of
outfits and shoes that Alejandra can pack while staying under the weight limit?
Use the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway is 70 miles per hour, with a standard deviation of 3 miles per hour. Estimate the percent of vehicles whose speeds are between 64 miles per hour and 76 miles per hour.
Answer:
The Empirical Rule states that for a normal distribution, approximately 68% of the data falls within one standard deviation of the mean, approximately 95% of the data falls within two standard deviations of the mean, and approximately 99.7% of the data falls within three standard deviations of the mean.
In this case, the mean speed is 70 mph and the standard deviation is 3 mph. So, we can estimate the percent of vehicles whose speeds are between 64 mph and 76 mph as follows:
64 mph = 70 mph - 3 mph * 1
76 mph = 70 mph + 3 mph * 1
Since the speeds are within one standard deviation of the mean, we can use the Empirical Rule to estimate that approximately 68% of the vehicles have speeds between 64 mph and 76 mph.
So, the answer is approximately 68%.
Find the slope and y-intercept of the equation.
y + 7 = 4x
slope: 7
&
y-intercept: 4
slope: 4
&
y-intercept: -7
slope: 4
&
y-intercept: 7
slope: -4
& y-intercept: 7
Answer:
slope: 4
Y-intercept: -7
Step-by-step explanation:
you would have to solve for y so you subtract the 7 on both sides. then it is in slope-intercept form which is y=mx+b where m is slope and b is the y-intercept. the slope would be 4 and the y-intercept would be -7
heather has divided 6300.00 between two investments, one paying 9% the other paying 5% how much did she invest in both if her return on the investment is 427.00
In linear equation, 2800 did she invest in both if her return.
What is the most effective way to explain linear equations?
An x-y linear relationship, or two variables in which the value of one of them (often y) relies on the value of the other one, is what is known as a linear equation in two variables (usually x).
In this scenario, y is referred to as the dependent variable because it depends on the independent variable, x.
assuming that the two investments are X & Y
X + Y = 6300
X = 6300 - Y (1)
9/100X + 4/100 Y = 427 (2)
replacing X from (1) into (2)
9/100(6300-Y) + 5/100 Y = 427
567 - 9/100Y + 5/100Y = 427
(-9+5)/100Y = 427 - 567
4/100Y = - 140
Y = 100* 140/4 = 3500
From (1) we can get X
X = 6300 - 3500 = 2800
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Which are monomials?
-7
a
x + y
24r2st3
bx
Answer:
A,B,E,F
Step-by-step explanation:
0,1,1,12,2,2,3,3,4,5,10 find the mean and the standard deviation for each data set
Answer:
Step-by-step explanation:
Doesn't give the correct set of numbers im sorry I can't help you :(
help please :((( this is the last math problem
Answer:
11.53 degrees.
Step-by-step explanation:
ok so we know the hyp and opp sides. this means that it is sin. according to SOHCAHTOA we do sin^-1(2/10). you should get 11.53
Answer:
11.5396°
Step-by-step explanation:
Please see the attached image
We can do sin(x)=2/10, which simplifies to sin(x)=1/5
To get x by itself do \(x=sin^{-1}\)(1/5) which ≈11.5396°
Please help thank you!!!
Answer:
(x,y) --> (-1x, y).
yes it's rigid motion as its a rotation
Step-by-step explanation:
the mapping rule is (x,y) --> (-1x, y).
We can figure this out by diving the xs of the primes by their originals. The conversion factor is multiplying by -1.
Yes it's a rigid motion, it's a rotation.
100 pnts!!!
A scientist is studying the growth of a particular species of plant. He writes the following equation to show the height of the plant f(n), in cm, after n days:
f(n) = 12(1.03)n
Part A: When the scientist concluded his study, the height of the plant was approximately 16.13 cm. What is a reasonable domain to plot the growth function? (4 points)
Part B: What does the y-intercept of the graph of the function f(n) represent? (2 points)
Part C: What is the average rate of change of the function f(n) from n = 3 to n = 10, and what does it represent? (4 points)
The reasonable domain to plot the growth function is {x : 0 ≤ x ≤10}.
y intercept of the graph of the function represents the initial height of the plant.
Average rate of change of the function f(n) from n = 3 to n = 10 is 0.43.
Given a growth function,
f(n) = 12 (1.03)ⁿ
Part A :
When the scientist concluded his study, the height of the plant was approximately 16.13 cm.
12 (1.03)ⁿ = 16.13
(1.03)ⁿ = 1.344
Taking logarithms on both sides,
n log (1.03) = log (1.344)
n = log (1.344) / log (1.03)
n = 10.006 ≈ 10 days
Domain = {x : 0 ≤ x ≤10}
Part B :
The y intercept of the graph of the function is the height of the plant in 0 days, that is the initial height of the plant.
Part C:
Average rate of change of the function f(n) from n = 3 to n = 10 is,
f(10) - f(3) / 10 - 3
f(10) = 12(1.03)¹⁰ = 16.127
f(3) = 12(1.03)³ = 13.113
Average rate of change = (16.127 - 13.113) / 7 = 0.43
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I will give u a crown The rectangles below are similar in shape and their sides are proportional. The large rectangle is 42 feet tall and 54 feet wide. The smaller rectangle is 36 feet wide. How tall is the smaller rectangle? *
Answer:
28ft tall
Step-by-step explanation:
Since they are proportional, you can set up a ratio of length to width.
L/W=L/W
42/54=L/36
L=(42*36)/54
L=28
If you help I will give you brainliest
9514 1404 393
Answer:
5 miles
Step-by-step explanation:
Time/speed/distance problems can be worked a number of ways. Here, we want to know the distance walked. We know the total time and the total distance and the two different speeds. So, we can use a variable to represent the value we want to know: w = distance walked (in miles).
The total time is 9:00 -6:50 = 2:10 = 2 1/6 hours = 13/6 hours.
The total time is the sum of times for the two parts of the trip: walking and riding.
walking time = walking distance/walking speed
= w/3
riding time = riding distance/riding speed
= (20-w)/30
The total time is that given above:
w/3 +(20-w)/30 = 13/6
10w +(20 -w) = 65 . . . . . . . . multiply by 30
9w = 45 . . . . . . . . . . . . subtract 20, collect terms
w = 5 . . . . . . . . . . . divide by 9
The girl walked 5 miles.
How many calories are there in 2 1/2 cup of cereal
Answer:
330 calories if it is 2 1/2 cup of cheerios.
Step-by-step explanation:
140 is 1 cup of cheerios multiply it by 2
50 is half a cup
now add 280 (140 x2) plus 50 which equals = 330 calories for 2 1/2 cups of cheerios.
Can someone please help me with this
Answer:
(x = 0, y = 0) and (x = 3, y = 0)
Step-by-step explanation:
Let's test out each pair by substituting the values into the inequalities.
Case 1: x = 0, y = 0
0 <= 6
0 < 6
It works!
Case 2: x = -5, y = -15
-15 <= 10 + 6 = 16
-5 + 15 = 10 < 6
It doesn't work.
Case 3: x = 4, y = -2
-2 <= -8 + 6 = -2
4 + 2 = 6 < 6
It doesn't work.
Case 4: x = 3, y = 0
0 <= -6 + 6 = 0
3 < 6
It works!
Case 5: x = 10, y = 0
0 <= -20 + 6 = -14
From here we can already see that it doesn't work
Case 1 and 4 work!
i need x and the two angles
Answer:
x= 13
both angles are equal to 106
Step-by-step explanation:
8x + 2= 14x - 76
-8x +76 - 8x +76
78 = 6x
78/6 = 13
8 (13) + 2 = 104 + 2 = 106
14(13) - 76 = 182 - 76 = 106
one and three fifths plus three and two thirds equals blank
Answer: 5 4/15
Step-by-step explanation:
1 3/5 + 3 2/3 = 8/5 + 11/3
Find the common denominator (5 and 3) = 15
So 8/5 equals to 24/15 because if 5 x 3 = 15 , 8 must also multiply by 3.
11/3 equals to 55/15 because if 3 x 5 = 15 , 11 must also multiply by 5.
Thus 24/15 + 55/15 = 79/15
This is an improper fraction, so converting to mixed number:
79/15 = 5 4/15 because 5 x 15 + 4 = 79
kallie looks down 30 yards from the top of a ferris wheel to see who is getting on next. How far will she travel to get to the ground?
May please get help with finding out weather it can be lengths of a triangle or not, for each length please
Triangle inequality theorem: the sum of any two sides of a triangle is greater than or equal to the third side.
Given lengths:
1-
\(\begin{gathered} 17+4\ge8 \\ 21\ge8 \\ \\ 4+8\ge17 \\ 12\ge17 \\ \\ 17+8\ge4 \\ 25\ge4 \end{gathered}\)As you can see above not all the inequalities are true. Then, those lengths cannot be side lengths of a triangle.
2-
\(\begin{gathered} 13.3+4.3\ge9.9 \\ 17.6\ge9.9 \\ \\ 4.3+9.9\ge13.3 \\ 14.2\ge13.3 \\ \\ 9.9+13.3\ge4.3 \\ 23.2\ge4.3 \end{gathered}\)All the inequalities are true. Then, those lengths can be side lengths of a triangle
3-
\(\begin{gathered} 22+6\ge6 \\ 28\ge6 \\ \\ 6+6\ge22 \\ 12\ge22 \\ \end{gathered}\)As you can see above not all the inequalities are true. Then, those lengths cannot be side lengths of a triangle
4-
\(\begin{gathered} 13+6\ge16 \\ 19\ge16 \\ \\ 6+16\ge13 \\ 22\ge13 \\ \\ 13+16\ge6 \\ 29\ge6 \end{gathered}\)All the inequalities are true. Then, those lengths can be side lengths of a triangle
When you woke up this morning, the temperature was -5.8°C. At noon, the temperature was 2.9°C. Which expression and statement describes the situation?
Answer:
-5.8<2.9
Step-by-step explanation:
Solve this system of equations without graphing. 5x+4y=24 and 2x-8y=36
Answer:
x= 7
y= -2.75
Step-by-step explanation:
It's a system of equations so you have to use elmination to get a varibale.
I elminiated the y by multipling 5x+4y=24 by 2 and combining the two equations.
So now we are on 12x= 84. solve
x=7
plug it back into any formula, I chose 2x-8y=36 and solve for y
and you get the answer, Voila!
Answer:
5x + 4y = 24 (-4/5y + 24/5)
2x - 8y = 36 (4y + 18)
Step-by-step explanation:
Add -4y to both sides 1) 5x + 4y (-4y) = 24 (-4b)
Divide both sides by 5 2) 5x/5 = -4y+24/5
3) x = -4/5y + 24/5
Add 8y to both sides 1) 2x - 8y (8y) = 36 (8y)
Divide both sides by 2 2) 2x/2 = (8y + 36)/2
3) 4y +18
From 100 yards away, a marksman hit 27/50 of the targets last year.
The marksman hit 54% of the targets last year when expressed as a percentage, based on hitting 27 out of 50 targets from a distance of 100 yards.
From the given information, we know that a marksman hit 27 out of 50 targets last year from a distance of 100 yards.
To analyze this data, we can calculate the hit rate or success rate of the marksman. The hit rate is calculated by dividing the number of hits by the total number of attempts or trials.
Hit rate = Number of hits / Total number of attempts
In this case, the number of hits is 27, and the total number of attempts is 50.
Hit rate = 27 / 50
Simplifying the fraction, we get:
Hit rate = 0.54 or 54%
Therefore, the marksman had a hit rate of 54% last year.
This means that out of the 50 targets attempted from a distance of 100 yards, the marksman successfully hit 27 of them.
The hit rate serves as a measure of accuracy and effectiveness in target shooting. A higher hit rate indicates a higher level of skill and precision.
It's important to note that other factors such as weather conditions, visibility, and the difficulty level of the targets can influence the hit rate. Additionally, the marksman's skills may improve or vary over time, so this hit rate represents their performance specifically for the past year.
By analyzing the hit rate, we can gain insights into the marksman's accuracy and assess their proficiency in target shooting from a distance of 100 yards.
The question was incomplete. find the full content below;
Rewrite The Fraction In The Sentence Below As A Percentage.
From 100 Yards Away, A Marksman Hit 27/50 Of The Targets Last Year.
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Real-life Problems Question 6
The amount of money that Theresa has left is equal to £2,740.
How to write a linear equation to model this situation?In order to write a linear equation to describe this situation, we would assign variables to the cost of flights for each of them and the cost of accommodation for each of them respectively, and then translate the word problem into a linear equation as follows:
Let the variable a represent cost of flights for each of them.
Let the variable f represent cost of accommodation for each of them.
Since Theresa paid for herself and 11 friends to go on holiday with a flight cost of £339 and accommodation cost of £266, a linear equation to describe this situation is given by;
y = 12(a + b)
y = 12(266 + 339)
y = £7,260
For the amount of money left, we have:
Amount of money left = £10,000 - £7,260
Amount of money left = £2,740.
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Jamison needs a total of $395 to buy a new bike. He has $35 saved. He earns $15 each week delivering newspapers . How many more weeks will Jamison have to deliver papers to earn enough money for a bike?
An equation is formed of two equal expressions. The number of weeks for which Jamison needs to deliver papers to earn enough money for a bike is 24.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
Given that Jamison needs a total of $395 to buy a new bike but he has only $35 saved. Also, He earns $15 each week delivering newspapers.
Now, the equation that can represent the situation can be written as,
Cost of the bike = Amount Saved + Earning by delivering newspapers
Substituting the values,
$395 = $35 + $15x
where x is the number of weeks for Which Jamison needs to work in order to purchase the new bike. Therefore, solving the equation for x,
395 = 35 + 15x
395 - 35 = 15x
360 = 15x
x = 360 / 15
x = 24
Hence, the number of weeks for which Jamison needs to deliver papers to earn enough money for a bike is 24.
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when adding an entry to a binary search tree, the search ends at a leaf if the entry is not already in the tree.
The statement " when adding an entry to a binary search tree, the search ends at a leaf if the entry is not already in the tree" is true.
A tree is a type of data structure made up of nodes and contains the following features:
1- Every tree has a root node (also known as a parent node) at the top that contains some value (can be any datatype).
2- There are 0 or more child nodes of the root node.
3- There are zero or more child nodes for each child node, and so forth. As a result, the tree gains a subtree. Each node has a separate subtree that consists of its offspring and their offspring, etc. This implies that any node can function as a tree on its own.
In addition, a binary search tree (BST) has the following two features:
1- Each node has a maximum of up to two children.
2-For each node, the values of its left descendent nodes are less than that of the current node, which in turn is less than the right descendent nodes (if any).
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234,143 rounded to the nearest hundred
Answer:
234,100
anything that is below 50 will go down.
Step-by-step explanation:
Answer:
234,100
Step-by-step explanation:
4 below let him go
5 and above bump him up
if youre looking in the hundreds place (the 1) you look to the right to see what number you have, if you follow the saying ^^ then 4 is let go so you just keep 100.
or if you want to look at it on a number line, 143 is closer to 100 than 200 :)