Answer:
\((6,8 )\)
Step-by-step explanation:
Midpoint Formula: \((\frac{x_1+x_2}{2},\frac{y_1+y_2}{2} )\)
Simply plug in your coordinates into the midpoint formula to find midpoint:
\((\frac{5+7}{2},\frac{9+7}{2} )\)
\((\frac{12}{2},\frac{16}{2} )\)
\((6,8 )\)
The rear windshield wiper of a car rotated 120 degrees,as shown. Find the area cleared by the wiper. 25inch,120 degrees, 14inch
The rear windshield wiper of a car rotated 120 degrees, as shown in the figure. The area cleared by the wiper blade is approximately 205.875 square inches.
The problem states that a car’s rear windshield wiper rotates 120 degrees, as shown in the figure. Our aim is to find the area cleared by the wiper.
The wiper's arm is represented by a line segment and has a length of 14 inches.
The wiper's blade is perpendicular to the arm and has a length of 25 inches.
Angular degree measure indicates how far around a central point an object has traveled, relative to a complete circle. A full circle is 360 degrees, and 120 degrees is a third of that.
As a result, the area cleared by the wiper blade is the sector of a circle with radius 25 inches and central angle 120 degrees.
The formula for calculating the area of a sector of a circle is: A = (θ/360)πr², where A is the area of the sector, θ is the central angle of the sector, π is the mathematical constant pi (3.14), and r is the radius of the circle.
In this situation, the sector's central angle θ is 120 degrees, the radius r is 25 inches, and π is a constant of 3.14.A = (120/360) x 3.14 x 25²= 0.33 x 3.14 x 625= 205.875 square inches, rounded to the nearest thousandth.
Therefore, the area cleared by the wiper blade is approximately 205.875 square inches.
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PLEASE HELP
Libby flips a quarter 2 times in a row.
What is the probability of the quarter landing on heads at least 1 time?
A. 1/4
B. 1/3
C. 3/4
D. 1/2
Find the value of x and the measure of the missing angle labeled A:
Answer:
below with explaination
Step-by-step explanation:
angle A + angle B + angle C = 180
x+x+37+x+67=180
3x+104=180
3x=180-104
3x=76
x=76÷3
x=25.3
angle A = 62.3
Answer:
104 and 90
Step-by-step explanation:
Simplify.
(5n2−4n+6) + (4n2−2n−3)
9n2+6n+9
9n2−2n−3
9n2−6n+3
9n4−6n2+3
Answer:
Let's simplify step-by-step. 5n2−4n+6+4n2−2n−3
=9n2−6n+3
Which expression does the model represent?
Lightest weight
750g
0.7kg
7.5kg
705g
7.05kg
Answer:
.7 kg
Step-by-step explanation:
1. Convert answers in grams into kilograms
1000g = 1 kg
750g = .75kg
705g = .705 kg
2. Find smallest number of kg
= .7 kg
7 ft equal how many inches
Answer:
Step-by-step explanation:
There is 12 inches in a foot: therefore, 12inches x 7ft. = 84 ft.
Answer: 84 inches
Step-by-step explanation:
A conversion factor is a number that is used to multiply or divide one set of units into another. For instance, 12 inches equals one foot when converting between inches and feet.
Since 1 foot = 12 inches
And we are trying to figure out how much inches are in 7 ft.
We can create a conversion (or cross multiply)
\(\frac{12}{1} =\frac{x}{7}\)
Where inches are in the numerator and ft are in demoninator.
When cross multiplying (multiplying in a diagonal) you get:
x = 84 inches
So 7 ft equals 84 inches.
---
A quicker method would be to multiply 7 ft by 12 inches/1 ft (foot), and get 84 inches.
--
what is largest prime factor of 309 squared minus
147squared
Answer:
309^2 - 147^2 is the same as 95,481 - 21,609.
95,481 - 21,609 = 73,872.
Prime Factors of 73,872 =2, 2, 2, 2, 3, 3, 3, 3, 3, 19
Which is the same as = 24 x 35 x 19
m is a negative number.
Which statement is correct?
Choose only one answer.
A m + 9 is always positive
Bm + 9 is always negative
c m + 9 cannot be zero
D m + 9 could be positive or negative or zero
Answer:
D
Step-by-step explanation:
Examples
-10 +9 = -1
-8 +9 = 1
-9+9=0
The triangles shown are similar. Use the image to answer the question.
a triangle DEF with side DF labeled 9 and a second overlapping triangle GEH with side GH labeled 4 and EH labeled 8
Determine the length of side FE.
2.25
10
12
18
Answer:
Since the triangles DEF and GEH are similar, their corresponding sides are proportional.
DF/GH = EF/EH
Substituting the given values, we get:
9/4 = EF/8
Cross-multiplying, we get:
EF = 9/4 * 8 = 18
Therefore, the length of side FE is 18.
So the answer is 18.
Answer:
12
Step-by-step explanation:
look at how large 8 is compared to it
Are these two triangles congruent? Use tracing paper to justify your answer
Answer:
no
Step-by-step explanation:
Answer:
Where's the pic shorty
Step-by-step explanation:
????????
HELP fast please! i’ll mark you
Answer:
yes it is linear
Step-by-step explanation:
it doesnt have two of the x values arent the same
can someone help me please be correct I really need someone help
Answer:
b
Step-by-step explanation:
just because not 100% sure but if i remember correctly how to do it its b
\(\sqrt{7x+2}\)
Answer:
\( \sqrt{7x + 2} \\ \)
for answer please see
please mark me brainliest pleasegiven f(x)=3x-5, solve for x when f(x)= (x-1)
Answer: Pretty sure it should be 2.
Step-by-step explanation:
maybe -2 but i dont think so
PLEASE HELP!! What is the surface area of the cone?
Two angles form a linear pair, the sum of one angle plus 27 is equal to two times the sum of the other angle
The pair of Linear angles are 51° and 129°.
What are Linear Angles:When two lines intersect at a point then they will form two linear angles. The sum of angles of a linear pair is always equal to 180°. Such angles are also known as supplementary angles.
In other words, if the sum of two adjacent angles is 180° then the pair of angles are said to be Linear Angles.
Here we have
Two angles form linear angles
Let x and y be the two angles
=> x + y = 180 ------ (1) [ since both are linear angles ]
Given that the sum of one angle plus 27 is equal to two times the sum of the other angle
=> x + 27 = 2y
=> x = (2y - 27) ---- (2)
Substitute (2) in (1)
=> 2y - 27 + y = 180
=> 3y = 153
=> y = 153/3
=> y = 51
Now substitute y = 51 in (1)
=> x + 51 = 180
=> x = 180 - 51
=> x = 129
The pair of Linear angles are 51° and 129°.
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Which of the following does NOT show an identity property? Group of answer choices
5 ÷ 1 = 5
2 + 1 = 3
4 × 1 = 4
3 − 0 = 3
Answer:
2+1=3
Step-by-step explanation:
Eliana draws a quadrilateral that has sides measuring 12 centimeters, 10 centimeters , 12 centimeters, and 10 centimeters in length. The angles are NOT right angle. What type of quadrilateral did Eliana draw?
Answer:
parallelogram
Step-by-step explanation:
opposite sides are congruent so this meets the minimum requirement to be a parallelogram.
2. How many radians are in 27"?
The answer is 0.471 radians.
FORMULA:
Just do 27° × π/180 = 0.4712rad but then cut off the two.
pls help my test is in a couple of hours and I can’t fail
i wanna answer 1st question.I hope it will be helpful
so what you can do is to do substract of circumference of circle by the rectangle
and you will area value of circle
PLEASE HELP WILL MARK BRAINLIEST!
In the diagram, XY = 12, XZ = 15, YZ = 17.
What is BC?
BC = ?
Answer:
Firstly, from the diagram we are given that the length of XB is congruent to BZ, and YC is congruent to CZ. Based on this information, we know that B is the midpoint of XZ, and C is the midpoint of YZ. This means that BC connects the midpoints of segments XZ and YZ. Now that we know this, we can use the Triangle Midsegment Theorem to calculate the length of BC. This theorem states that if a segment connects the midpoints of two sides of a triangle, then the segment is equal to one-half the length of the third side. In this scenario, the third side would be XY, which has a length of 12 units. Therefore, the length of BC = 1/2(XY), and we can substitute the value of XY and solve this equation:
BC = 1/2(XY)
BC = 1/2(12)
BC = 6
Step-by-step explanation:
Please support my answer.
Question 7 of 10
Evaluate this exponential expression.
4.(2 + 5)2 - 52 =
A. 144
B.8
C. 171
D. 46
Answer:
(2+5)2-52
=7× 2-52
=14-52
= -42
not in this list but that's right answer
A 5 foot person walks at 40 feet per minute on a level path toward a vertical wall. A light on the ground directly behind the person casts a shadow of the person on the wall. The light is loo feet from the wall. How fast is the person's shadow on the wail changing in Length (in feet per minute) when the person is 25 feet from the wall?O -31/9O -32O -8/9O -125/14O -125/28
-32/9 feet/min fast is the person's shadow on the wail changing in Length (in feet per minute) when the person is 25 feet from the wall. So the option a is correct.
In the given question, a 5 foot person walks at 40 feet per minute on a level path toward a vertical wall.
A light on the ground directly behind the person casts a shadow of the person on the wall.
The light is loo feet from the wall.
We have to find how fast the person's shadow on the wail changing in Length (in feet per minute) when the person is 25 feet from the wall.
From the diagram given below;
dx/dt = 40 feet/min
y/100 = 5/x
Multiply by 100 on both side, we get;
y = (5×100)/x
y = (500)/x
dy/dt = -500/x^2(dx/dt)
Now putting the value of dx/dt
dy/dt = -500/x^2 *40
dy/dt = -20000/x^2
from the diagram given below, x = 75 feet
Now putting the value of x
dy/dt = -20000/(75)^2
dy/dt = -32/9 feet/min
Hence, -32/9 feet/min fast is the person's shadow on the wail changing in Length (in feet per minute) when the person is 25 feet from the wall. So the option a is correct.
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Simplify your answer as much as possible.
By using the substitution method, we will see that the value of y is 23.
How to solve the system of equations?Here we have a system of linear equations, the system is:
y - x = 11
x = 12
The second equation is trivial, it just gives the value of x. Then we can use the substitution method and replace it in the first equation, then we will get:
y - 12 = 11
Now we can solve this for y, we will get:
y = 11 + 12
y = 23
That is the value of y.
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You flip a coin 100 times and record that 48 are heads and 52 are tails. What is the relative frequency or experimental probability of landing on heads?
whats the percentage
As a result, the experimental probability of landing on heads is 48%, probability which means that we should expect heads approximately 48 times out of 100 coin flips.
What is probability?Probability is a measure of the likelihood of an event occurring. It is expressed as a number between 0 and 1, with 0 indicating an unlikely event and 1 indicating an unavoidable event. Because there are two equally likely outcomes, switching a fair coin and coin flips has a probability of 0.5 or 50%. (Either heads or tails). Probability theory, a branch of mathematics, is concerned with the investigation of random events rather than their properties. It is used in a variety of fields, including statistics, finance, science, and engineering.
The following formula can be used to calculate the relative frequency or experimental probability of landing on heads:
Number of Heads / Total Number of Flips = Experimental Probability of Heads
The number of heads in this case is 48, and the total number of flips is 100. Therefore,
Heads Experimental Probability = 48 / 100 = 0.48
We can multiply this by 100 to get a percentage:
Heads Experimental Probability = 0.48 * 100 = 48%
As a result, the experimental probability of landing on heads is 48%, which means that we should expect heads approximately 48 times out of 100 coin flips.
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What is the solution to |x-2| + 3 > 17?
Ox<-12 or x > 16
Ox<-14 or x>7
O-12
O-14
Answer:
x<-12 or x>16
Step-by-step explanation:
Answer:
|x - 2| + 3 > 17
|x - 2| > 14
x - 2 < -14 or x - 2 > 14
x < -12 or x > 16
need help with 1 and 2
The conversion of the units gives:
NUMBER 1: 75 mi/hr = 36.957 m/s
NUMBER 2: 5d = 432000 seconds
How to convert miles per hour to meters per second?Unit conversion is the process of converting a quantity expressed in one unit of measurement to another unit of measurement. For example, converting a distance measured in meters to feet, or converting a weight measured in kilograms to pounds.
NUMBER 1
1 mile = 5820 feet, 1 feet = 0.3048 meter.
1 hour = 60 minutes = 60 * 60 seconds = 3600 seconds
To convert 75 mi/hr to m/s, we have:
75 mi/hr = (75 * 5820 * 0.3048)m / (60 * 60)s = 36.957 m/s
NUMBER 2
Since we have 24 hours in a day, 60 minutes in 1 hour and 60 seconds in a minute. Thus, 5 days can be written as:
5d = 5 * 24 * 60 * 60 = 432000 seconds
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A person needs to fill 20 water jugs with a hose. Filling the first 2 jugs has taken 3 minutes. How long to finish filling the remaining jugs
Answer:
Step-by-step explanation:
=20
This take 30 minutes to finish filling the remaining jugs.
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
A person needs to fill 20 water jugs with a hose. Filling the first 2 jugs has taken 3 minutes.
Now,
Let the time to finish filling the remaining jugs = x
Since, A person needs to fill 20 water jugs with a hose. Filling the first 2 jugs has taken 3 minutes.
Hence, By definition of proportion we get;
⇒ 20 / x = 2 / 3
⇒ 20 × 3 / 2 = x
⇒ x = 30
Thus, The time to finish filling the remaining jugs = 30 minutes
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a simple random sample of size n is obtained from a population whose size is and whose population proportion with a specified characteristic is describe the sampling distribution of . round the standard deviation of the sampling distribution to three decimal places.
The sampling distribution of is a binomial distribution with parameters n and p, where n is the sample size and p is the population proportion of the specified characteristic.
The mean of the sampling distribution is np and the standard deviation is \($\sqrt{np(1-p)}$\).
Sampling Distribution of a Simple Random SampleRound the standard deviation to three decimal places, it is \($\sqrt{np(1-p)}$ = $\sqrt{n \cdot p \cdot (1-p)} \approx \sqrt{n \cdot p \cdot 0.99}$\).
The sampling distribution of is a binomial distribution with parameters n and p, where n is the sample size and p is the population proportion of the specified characteristic. The mean of the sampling distribution is np and the standard deviation is \($\sqrt{np(1-p)}$\). This means that for a given sample size n and population proportion p, the standard deviation of the sampling distribution can be calculated by taking the square root of the product of n, p, and (1-p).
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