Answer:
The regular speed is 2 times greater than the reduced speed.
Step-by-step explanation:
The information regarding the regular elevator speed was missing.
The regular elevator speed is 10 miles per hour, if the reduced speed for strong winds is 5 miles per hour, the ratio between those speeds is:
[tex]r=\frac{10}{5} \\r=2[/tex]
The regular speed is 2 times greater than the reduced speed.
Payton cut out two shapes, as shown, that she will later put together to resemble a house. On a coordinate plane, a square and a triangle are shown. The square has points (1, 4), (4, 7), (7, 4), (4, 1). The triangle has points (5, 8), (7, 8), and (8, 5). What is the total area of the two shapes? 20 square units 21 square units 22 square units 23 square units
Answer:
Correct option: second one -> 21 square units
Step-by-step explanation:
First let's find the side of the square.
We can find this side finding the distance between two points of the square, using the formula:
[tex]distance = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}[/tex]
Using points (1,4) and (4,7), we have:
[tex]distance = \sqrt{(1 - 4)^2 + (4 - 7)^2}[/tex]
[tex]distance = \sqrt{(-3)^2 + (-3)^2}[/tex]
[tex]distance = 3\sqrt{2}[/tex]
So the area of the square is:
[tex]area = distance^2[/tex]
[tex]area = (3\sqrt{2} )^2 = 18[/tex]
Now, let's find the three sides of the triangle:
points (5,8) and (7,8):
[tex]distance = \sqrt{(5 - 7)^2 + (8 - 8)^2} = 2[/tex]
points (7,8) and (8,5):
[tex]distance = \sqrt{(7 - 8)^2 + (8 - 5)^2} = \sqrt{10}=3.1623[/tex]
points (8,5) and (5,8):
[tex]distance = \sqrt{(8 - 5)^2 + (5 - 8)^2} = 3\sqrt{2}=4.2426[/tex]
The area of the triangle can be calculated using the formula:
[tex]area = \sqrt{p(p-a)(p-b)(p-c)}[/tex]
Where p is the semi perimeter of the triangle:
[tex]p = (a+b+c)/2 = (2+\sqrt{10} +3\sqrt{2} )/2 = 4.7025[/tex]
So the area is:
[tex]area = \sqrt{4.7025(4.7025-2)(4.7025-3.1623)(4.7025-4.2426)} = 3[/tex]
Now, adding both areas, we have:
Total area = 18 + 3 = 21 square units
Correct option: second one
Answer:
21
Step-by-step explanation:
love you
Zaheer, a boy of height 1.5m was watching the entire programme. Initially he observed the top of theflagpoleat an angle of elevation 300 . When he moved 10 m towards the flag post the angle of elevation of the top of the flagpole increased to 450. What is the height of the flag pole?
Answer:
[tex]h = 15.163\ meters[/tex]
Step-by-step explanation:
(Assuming the correct angles are 30° and 45°)
We can use the tangent relation of the angle of elevation to find two equations, then we can use these equations to find the height of the pole.
Let's call the initial distance of the boy to the pole 'x'.
Then, with an angle of elevation of 30°, the opposite side to this angle is the height of the pole (let's call this 'h') minus the height of the boy, and the adjacent side to the angle is the distance x:
[tex]tan(30) = (h - 1.5) / x[/tex]
Then, with an angle of elevation of 45°, the opposite side to this angle is still the height of the pole minus the height of the boy, and the adjacent side to the angle is the distance x minus 10:
[tex]tan(45) = (h - 1.5) / (x - 10)[/tex]
So rewriting both equations using the tangents values, we have that:
[tex]0.5774 = (h - 1.5) / x[/tex]
[tex]1 = (h - 1.5) / (x - 10) \rightarrow (h - 1.5) = (x - 10)[/tex]
From the first equation, we have that:
[tex]x = (h - 1.5) / 0.5774[/tex]
Using this value of x in the second equation, we have that:
[tex]h - 1.5 = \frac{ (h - 1.5) }{0.5774} - 10[/tex]
[tex]h + 8.5 = \frac{ (h - 1.5) }{0.5774}[/tex]
[tex]0.5774h + 4.9079 = h - 1.5[/tex]
[tex]0.4226h = 6.4079[/tex]
[tex]h = 15.163\ meters[/tex]
There are eight marbles in a bag. Four marbles are blue (B), two marbles are red (R) and two marbles are green (G) Steve takes a marble at random from the bag. What is the probability that Steve will take a blue marble.
Answer:
1/2
Step-by-step explanation:
There are 8 marbles in total and 4 are blue, so 4/8 are blue. Then simplify 4/8 and you will get 1/2.
Answer:
1/2 or 50%
Step-by-step explanation:
Blue= 4, Red= 2, Green= 2
Total marbles= 8
P(B)= 4/8= 1/2 or 50%
A school creates a histogram representing the individual travel times for students riding the bus to school. The histogram is right-skewed, and the mean time is 25 minutes.
Which statement best describes the possible value of the median time of students riding the bus to school?
THIS IS THE COMPLETE QUESTION;
A school creates a histogram representing the individual travel times for students riding the bus to school. The histogram is right-skewed, and the mean time is 25 minutes.
Which statement best describes the possible value of the median time of students riding the bus to school?
The median time is less than 25 minutes.
The median time is exactly equal to 25 minutes.
The median time is approximately equal to 25 minutes.
The median time is greater than 25 minutes.
Answer;
The median time is less than 25 minutes
Step-by-step explanation
✓When the histogram is skewed right, it implies that the mean is greater than the median which means The median time is less than the mean.
This is as a result of few large values that drive as a result of skewed-right data
✓Skewness can be explained as measure of the asymmetry of a histogram When a histogram is symmetrical when it has a normal distribution, i.e when the same amount of data falls on both sides of the mean. Ahistogram has a normal distribution will have a skewness of 0.
✓the skewness can be explained in terms positive/right relationship:
√nonparametric skew implies that the mean is greater than the median, which means it is at the the right.
√A negative/left nonparametric skew can be explained as when the mean is < the median. I e it fall to the left .
Therefore, the median is less than 25 minutes
The statement that most adequately recounts the likely value of median time:
A). The median is less than 25 minutes.
What is the Median?Median is defined as the number that isolates the first and later half of a set of given distribution or number.
As per the question, the bend in the histogram towards the right side signals that the mean value is significantly higher than the median.
The cause behind this is that the greater values have caused this influence.
Hence, this implies that the median values are lesser by the time of 25 minutes.
Thus, option A is the correct answer.
Learn more about "Median" here:
brainly.com/question/300591
The options are missing in the question. They are provided as follows:
The median time is less than 25 minutes.
The median time is exactly equal to 25 minutes.
The median time is approximately equal to 25 minutes.
The median time is greater than 25 minutes.
A 45 foot ladders leaning up against a building. The base of the latter is 20 feet away from the building. What is the angle of elevation to the top of the building
Answer:
The angle of elevation to the top of the building is 63.61 degrees
Step-by-step explanation:
Here, we want to calculate angle of elevation to the top of the building.
For this, we need a triangle
Please check for this in the attachment.
From the diagram, we are to calculate the angle theta.
To do this, we use trigonometric identities.
Looking at what we have, we have the hypotenuse and the adjacent.
So the trigonometric identity to use is the cosine
Mathematically Cosine theta = adjacent/hypotenuse
Thus, Cos theta = 20/45
Cos theta = 0.444444444444444
Theta = Arc cos(0.444444444444444)
Theta = 63.61 degrees
(-38)÷ ------- =not defined.fill in the blanks
please fill the answer
━━━━━━━☆☆━━━━━━━
▹ Answer
∞
▹ Step-by-Step Explanation
The answer is ∞ because anything divided by infinity is not defined.
Hope this helps!
- CloutAnswers ❁
Brainliest is greatly appreciated!
━━━━━━━☆☆━━━━━━━
which of the following represents the factorization of the trinomial below? x^2+9x-22
Answer:
(x+11)(x-2)
Step-by-step explanation:
To factorise: x^2+9x-22
You must first divide the centre term in such a way that the sum of the 2 values will be divisible by x squared and minus 22 respectively.
So x^2+9x-22 = x^2 -2x + 11x - 22.
Now factorize x^2 - 2x and 11x-22 individually.
x^2 - 2x = x(x-2)
11x - 22 = 11(x-2)
Since these both have the same value in the brackets, use 5at one of the brackets and the other is the combination of them together:
(x+11)(x-2)
Hope this helps
Answer: (x + 11)(x - 2)
Step-by-step explanation: Since the constant term is negative, it can be factored as a positive times a negative.
Before we do that however, an x will go in the first position
of each binomial because x² breaks down into x · x.
Remember, the factors of the constant term
must add to the coefficient of the middle term.
So let's list out the factors of -22.
Factors of -22
+22 · -1
-22 · +1
+11 · -2
-11 · +2
Looking at the list above, that pair
of factors that add 9 is +11 and -2.
So our answer therefore is (x + 11)(x - 2).
Note that if you wrote your answer
as (x - 2)(x + 11), it means the same thing.
pleaseee help me w dis asap!!
Answer:
x=2 f(x)=5-x
o≤x≤3 f(x)=x
2＜x＜3 f(x)=1
3＜x≤5 f(x)=5-x
Step-by-step explanation:
The vertex form of h(x) = x2 – 14x + 6 is h(x) = (x – )2 –
Answer:
7 and 14
Step-by-step explanation:
https://brainly.com/question/9917237
Answer:
7 an 43
Step-by-step explanation:
6[13 – 2(4 + 1)] plz help mee
Answer:
18.
Step-by-step explanation:
6 * [13 - 2(4 + 1)] = 6 * [13 - 2(5)] = 6 * (13 - 10) = 6 * 3 = 18
Hope this helps!
Answer:
18
Explanation:
Step 1 - Simplify the expression. To do this, add four and one.
6[13 - 2(4 + 1)]
6[13 - 2(5)]
6[13 - 2 × 5]
Step 2 - Simplify the expression. To do this, multiply two by five.
6[13 - 2 × 5]
6[13 - 10]
Step 3 - Simplify the expression. To do this, subtract ten from thirteen.
6[13 - 10]
6[3]
Step 4 - Simplify the expression. To do this, multiply six by three.
6[3]
18
Therefore, the answer to the given expression is 18.
rearrange w= 3(2a+b) -4 to make a the subject
Answer:
a = - 1/2b + 1/6w + 2/3
Step-by-step explanation:
w= 3(2a+b) - 4
Add 4 on both sides.
w + 4 = 3(2a+b)
Divide 3 into both sides.
w/3 + 4/3 = 2a+b
Subtract b on both sides.
w/3 + 4/3 - b = 2a
Divide 2 into both parts.
w/3/2 + 4/3/2 - b/2 = a
a = w/6 + 4/6 - b/2
a = 1/6w + 2/3 - 1/2b
Answer:
a=(w-3b+4)/6
Step-by-step explanation:
w= 3(2a+b) -4
w=6a+3b-4
6a= w-3b+4
a=(w-3b+4)/6
Which set of algebra tiles represents the sentence below? Ada drove 2 fewer miles today than she drove yesterday. 2 boxes contain negative x and 1 box contains a plus sign. 1 box contains x and 2 boxes contain a minus sign. 1 box contains negative x and 2 boxes contain plus signs. 2 boxes contain x and 1 box contains a minus sign.
Answer:
The correct option is;
1 box contains x and 2 boxes contain minus sign
Step-by-step explanation:
Algebra tiles are used in teaching students algebraic concepts. The unit (small) tile represents the number one. The rectangular tile represents the variable x and the large square tile represents x²
The parameters given are;
Ada drove 2 fewer miles today than she drove yesterday, therefore;
Let X = number of miles Ada drove yesterday
We have number of miles Ada drove today = X - 2
Therefore, the correct option is 1 box contains x and 2 boxes contain minus sign
Answer:
its b
Step-by-step
i got it right on my test
Which graph represents a linear function that has a slope of 0.5 and a y-intercept of 2? On a coordinate plane, a line goes through points (negative 2, 0) and (0, 1). On a coordinate plane, a line goes through points (0, 2) and (4, 0). On a coordinate plane, a line goes through points (0, 2) and (2, 3). On a coordinate plane, a line goes through points (negative 4, 0) and (0, 2).
Answer:
the answer is: D
Step-by-step explanation:
did the test
A line connecting the coordinates (-4, 0), and (0, 2) on a coordinate plane will serve as the equation's representation in graph 4.
What are coordinates?A pair of numbers called coordinates are used to locate a point or a form in a two-dimensional plane. The x-coordinate and the y-coordinate are two numbers that define a point's location on a 2D plane.
Given, a linear function that has a slope of 0.5 and a y-intercept of 2.
thus the equation of line as slope-intercept:
y = mx + c
y = 0.5x + c
Since Y-intercept is 2 thus line passes through (0, 2)
from the equation
2 = 0.5 * 0 + c
c = 2
Equation of the line:
y = 0.5x + 2
Therefore, On a coordinate plane, a line goes through points (negative 4, 0) and (0, 2) and graph 4 will represent the equation.
Learn more about coordinates here:
https://brainly.com/question/20282507
#SPJ2
HELP PLZZZZZZZZZZZ!!!!!!!
Answer:
A) 21/20
Step-by-step explanation:
Tangent = Opposite/Adjacent
Can someone pwease help meh ;((
Answer:
Step-by-step explanation:
Part A:
(400-325)/(5-0)
75/5= 15 is the slope
Part B:
(0, 325) (5, 400)
y - 325 = 15(x - 0)
Part C:
y = 15x + 325
Part D:
x = 12
y = 15(12)+ 325
y = 180 + 325
y = $505
On a coordinate plane, a circle has a center at (0, negative 3). What is the equation of the circle shown in the graph? (x – 3)2 + y2 = 4 (x + 3)² + y² = 2 x² + (y + 3)² = 4 x² + (y – 3)² = 2
Answer:
Hello!
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Your answer would be ( C ) =
x² + (y + 3)² = 4
Hope this helped you!
Answer:
Your answer would be Option C!
Step-by-step explanation:
The answer above was correct and I got it right on edge. :)
Hope this helped confirm the answer for you guys :D
Juan y Luis deben pagar su deuda de suma 4500, si el triple de lo que debe Juan menos, lo que debe Luis asciende a 3500 ¿cuánto es la deuda de cada uno?
Answer:
donda esta laletcha
Step-by-step explanation:
hola
How would 2.15 be represented as a percent? A. 0.0215% B. 21.5% C. 215% D. 2,150%
Answer:
C
Step-by-step explanation:
A percentage is a number over 100, so if you want to find the percentage of a number multiply by 100. 2.15x100= 215
Answer:
C
Step-by-step explanation:
The length of the base of a right-angled triangle ABC is 6 centimeters and the length of the hypotenuse is 10 centimeters. Find the area of the triangle.
Answer:
24
Step-by-step explanation:
Ok, so we see that we have 6 as a leg of the right triangle and 10 as the hypotenuse. As we look closer, we can tell that this makes the Pythagorean triple 6, 8, 10. 6, 8, 10 is just the Pythagorean triple 3, 4, 5 but it is multiplied by 2. So now that we know both the legs of this right triangle, we can use the area of a triangle formula (bh)/2. 6*8=48 and 48/2 = 24 which gives us our answer.
Which of the system(s) below works best to solve by elimination? Why? System 1 : 3m+n=71 2m-n=30
System 2 : 4x+y=1 y=-2x+9
System 3 : 5x+4y=15 5x + 11y=22
Answer:
first option is easiest since it involves just adding both equations term by term.
3m+n=71
2m-n=30
Step-by-step explanation:
The first system looks like the easiest one, because the two equations are listed already in standard form, and the variable "n" appears as positive "n" in the first equation, and as its opposite "-n" in the second equation. Therefore the elimination method works directly by adding both equations term by term (thus cancelling out completely one of the variables in the resultant/combined equation.
You have a wire that is 50 cm long. You wish to cut it into two pieces. One piece will be bent into the shape of a square. The other piece will be bent into the shape of a circle. Let A represent the total area of the square and the circle. What is the circumference of the circle when A is a minimum
Answer:
88.6647727273 cm²
Step-by-step explanation :
The perimeter of the square =(50/2)
= 25 cm
∴ Side of the square = (25/4)
= 6.25 cm
∴ Area of of the square = (6.25)²
= 39.0625 cm²
The circumference of the circle =(50/2)
= 25 cm
∴ 2πr = 25
⇒ r = 25/(22/7)(2)
Area of the circle = (22/7) { 25/(22/7)2} {25/(22/7)2}
= (25×25×7) / (2×2×22)
= 4365/88
= 49.6022727273 cm²
∴ Total area of the circle and the square =(49.6022727273+39.0625000000)
= 88.6647727273 cm²
Hope it helped
If yes mark BRAINLIEST!
the question is the picture
Answer:
given, 4/12=x/18
now,
4/12=x/18
or, 18×4=12x
or, 72 =12x
or, x=72/12
therefore, x=6
so, the answer is x=6....
It is worked out that if 3 ladles full of soup are given to each person, 160 people can be fed. The costumers complained in the past that the proportions are too small. The cool decides to give 5 ladles full of soup to each person. How many people can now be fed
Answer:
96 people
Step-by-step explanation:
Here, we have 3 ladles feeding 160 people, we now want to calculate the number of people 5 ladles will feed.
First, we need to calculate the total number of ladles that fed the 160
people
That would be 3 * 160 = 480 ladles
Now we increased their number of ladles to 5, the number of people we would be feeding is 480/5 = 96 people
Please please help me. I'll give you the BRAINLIEST if correct! Given the equation A=250(1.1)^t, you can determine that the interest is compounded annually and the interest rate is 10%. Suppose the interest rate were to change to being compounded quarterly. Rewrite the equation to find the new interest rate that would keep A and P the same. What is the approximate new interest rate? Convert your answer to a percentage, round it to the nearest tenth, and enter it in the space provided, like this: 42.53%
Answer:
A=250(1+2.5)^4/12
Step-by-step explanation:
A=250(1+0.1)^t
compounded quarterly : divide the annual by 4 : 0.1/4=0.025 or 2.5%
2.5% every 3 month (quarterly), t=4/12 (quarterly)
the equation will be :
A=P(1+r/n)^t (p is the principal),r is the rate, n is the number of compounding , t is the time.
i hope it works, just try it
A=250(1+2.5)^4/12
Answer:
hi skkedklsk sn1. soosis
3. Which number is a solution of the inequality?
m>13/3
A) 3
B) 5
C) -9
D) 2
Answer: B) 5
Step-by-step explanation:
3 = 9/3
9/3 < 13/3
————————
5 = 15/3
15/3 > 13/3
————————
-9 = -27/3
-27/3 < 13/3
————————
2 = 6/3
6/3 < 13/3
What is the domain and range of the function y= (200/x) + 2
Answer:
Answers are below
Step-by-step explanation:
The domain of the function is all real numbers.
The range of the function is also all real numbers.
I graphed the function on the graph below.
11. A roofer calculates his bid price using the formula P = 1.85s + 4.2f, where s is the area of the roof in square feet and f is the length of the fascia in feet. Find the area of the roof with 190 feet of fascia and a price of $4,148. Round to the nearest square foot
Answer:
s = 1,811 square foot
Step-by-step explanation:
Here, we want to calculate the area of the roof.
The best way to proceed here is by substitution.
We simply substitute the length and the price into the bid price equation to get the area of the roof.
From the original equation, the formula to use is ;
P = 1.85s + 4.2f
now from what we are given; s = ?
f = 190 feet and P = $4148
substituting these values, we have;
4148 = 1.85s + 4.2(190)
4148 = 1.85s + 798
1.85s = 4148 -798
1.85s = 3350
s = 3350/1.85
s = 1,810.810810810811
To the nearest square foot, s = 1,811
On line A, each time x increases by 1 y increases by A) .5 B) 1 C) 1.5 D) 2
Answer:
b
Step-by-step explanation:
what is the distance between the points (5,7)and (-3,4) on the coordinate plane
Answer:
[tex]\boxed{D = 8.5 \ units}[/tex]
Step-by-step explanation:
The coordinates are (5,7) and (-3,4)
Distance Formula = [tex]\sqrt{(x2-x1)^2+(y2-y1)^2}[/tex]
D = [tex]\sqrt{(-3-5)^2+(4-7)^2}[/tex]
D = [tex]\sqrt{(-8)^2+(-3)^2}[/tex]
D = [tex]\sqrt{64+9}[/tex]
D = [tex]\sqrt{73}[/tex]
D = 8.5 units
5/8 divided by 4/5 plssss
Answer:
The correct answer is 25/32
Step-by-step explanation:
Let's recall that the division of two fractions is the same as multiplying the first fraction by the inverse or reciprocal of the second fraction. We get the reciprocal of a fraction by interchanging its numerator and denominator.
Upon saying that, we have:
5/8 ÷ 4/5 =
5/8 * 5/4 = (We use the inverse and not it is a multiplication)
25/32
The correct answer is 25/32