Answer:
Cluster Random Sample
Step-by-step explanation:
The operating rooms were divided into (hospital locations) and inspectors sampled every operating room from some of the groups.
Sampling method is the method where the subset of an overall population is selected.
The sampling method used was cluster sampling
From the question, we understand that:
The inspectors select some locationsThen all selected locations was checkedThe above illustrates cluster sampling.
This is so because, cluster sampling involves breaking down a population into smaller size.
In this case, the smaller size are the locations that were selected.
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What is the area of a parallelogram that has a base of 4 ½ inc. and a height of 2 ¼ in. ?
Answer:
4.5
Step-by-step explanation:
A farmer sell 7. 9 kilograms of pears and apples at the farmers market. 3/5 of this wieght is pears,and the rest is apples. How many apples did she sell at the farmers market?
The farmer sold 3.16 kilograms of apples at the farmers market.
What is division?
A division is one of the fundamental mathematical operations that divides a larger number into smaller groups with the same number of components. How many total groups will be established, for instance, if 20 students need to be separated into groups of five for a sporting event? The division operation makes it simple to tackle such issues. Divide 20 by 5 in this case. 20 x 5 = 4 will be the outcome. There will therefore be 4 groups with 5 students each. By multiplying 4 by 5 and receiving the result 20, you may confirm this value.
Let's start by finding out the weight of pears the farmer sold.
Weight of pears = 3/5 x 7.9 kg = 4.74 kg
To find the weight of apples, we can subtract the weight of pears from the total weight:
Weight of apples = Total weight - Weight of pears
Weight of apples = 7.9 kg - 4.74 kg
Weight of apples = 3.16 kg
Therefore, the farmer sold 3.16 kilograms of apples at the farmers market.
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factor this polynomial completely\(10 {x}^{2} - 11x + 3\)
Given:
There are given the equation:
\(10x^2-11x+3=0\)Explanation:
According to the question:
we need to find the factor of the given equation:
So,
From the equation:
\(\begin{gathered} 10x^{2}-11x+3=0 \\ 10x^2-6x-5x+3=0 \\ (2x-1)(5x-3)=0 \end{gathered}\)Final answer:
Hence, the factor of the given equation is shown below:
\((2x-1)(5x-3)=0\)Jake drove 66 miles in 2/5 hour. what's the unit rate in miles per hour?
Answer:
He was going about 26 miles an hour.
Step-by-step explanation:
This is a fraction equal to
66 miles ÷ 2.5 hours
We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 2.5
66 miles ÷ 2.5
2.5 hours ÷ 2.5
=
26.4 miles
1 hour
=
26.4 miles
hour
= 26.4 miles per hour
Sophie is making a copy of an angle. The original angle will be labeled G and the new angle will be labeled B. She has just finished using a compass, with the point on G, to draw an arc that intersects both rays of angle G. Which of the following should she do next
Answer:
The next step is;
Label the two intersection points
Step-by-step explanation:
To make a copy of an angle, the steps are;
1) Draw the rays of the original angle passing through the point B
2) Open the compass slightly and place the compass point on the vertices G where the two rays meet to draw an arc that intersect both rays
3) Label the point of intersection of both rays points C and D
4) With the compass still opened to the same width, move the compass to the point B on the line the angle is to be copied and draw a similar arc intersecting the ray at J
5) Open the compass to the width of C and D on the original angle and place the compass at point J to mark the arc on the copied angle location at M
6) Draw a line from B passing through M to complete the second ay of the copied angle.
HEEEEEEEEEELPPPPPPPPPPPPPP ASAAAAAAAAAAAAAAAPPPPPPPP
Answer:
\(C)~3x^3 y\)
Step-by-step explanation:
\(~~\sqrt[3]{27x^9 y^3}\\\\=\left(27 x^9 y^3 \right)^{\tfrac 13}\\\\=\left(3^3 x^9 y^3\right)^{\tfrac 13}\\\\=3x^3y\)
how many 7 letter words can be made from mathisfun if each word must have 4 consonants and 3 vowels?
There are 5040 possible combination of 7 letter words using 3 vowels and 4 consonants.
We know that the word must have 4 consonants and 3 vowels. We have the following vowels in "mathisfun" : i, a, and u.
We have 7 letters that can be used as consonants: m,t,h,s,f,n.
First we need to find the number of ways to choose the 4 consonants out of 7 possible letters, which is 7C4 = 35.
Then we need to find the number of ways to arrange the 4 consonants and 3 vowels, which is 4!*3! = 144
Finally, we multiply those two values together: 35 * 144 = 5040.
So there are 5040 7 letter words that can be made from "mathisfun" if each word must have 4 consonants and 3 vowels.
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Find the perimeter and area of the figure.
2 in.
2 in.
2 in.
2 in.
1 in.
Help please branliest ASAP
Answer: (x+(-1), y+4)
Step-by-step explanation:
Figure II ==> Blue point: (0, -1)
Figure I ==> Black point: (1. -5)
(0, -1)-(1. -5)=
(0-1, -1-(-5))=
(-1, -1+5)=(-1,4) ==> (x+(-1), y+4)
Please answer the math problem... I will mark you brainliest
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the measure of 2 angles are (3y+11) and (11 y+15). What is the value of y if the angles are congruent
As a result, if the two angles' measurements are (3y+11) and (11y+15) and they are congruent, then y must equal -1/2.
What is angle?An angle is a geometric figure formed by two rays that have a common endpoint, called the vertex. The rays are also known as the sides or legs of the angle. Angles are typically measured in degrees, with a full circle measuring 360 degrees. Angles can also be measured in radians, which are another unit of angular measurement used in mathematics and physics. One radian is equal to the angle subtended by an arc of a circle that has a length equal to the radius of the circle. The size of an angle is determined by the amount of rotation that occurs between the two rays. This is typically measured relative to the positive x-axis, with counterclockwise rotations being considered positive and clockwise rotations being considered negative. Angles are used in a wide range of mathematical and scientific applications, including geometry, trigonometry, physics, engineering, and architecture. They are also used in many everyday situations, such as measuring the size of an opening or the angle of incidence of sunlight on a surface.
Here,
If the two angles are congruent, then they must have the same measure.
So we can set the expressions for the measures of the two angles equal to each other and solve for y:
3y + 11 = 11y + 15
Subtracting 3y from both sides:
11 = 8y + 15
Subtracting 15 from both sides:
-4 = 8y
Dividing both sides by 8:
y = -1/2
Therefore, if the measure of the two angles is (3y+11) and (11y+15) and they are congruent, then y must equal -1/2.
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Oof :<
I can’t put my fInGer on this question
Answer:
B 21.50 dollars
Step-by-step explanation:
Is (-1, -2) a solution to this system of equations?
12x - 2y = 13
14x - 4y = -6
Answer:
No.
Step-by-step explanation:
12(-1)-2(-2)=-12+4=-8, not 13.
A ball is thrown horizontally at the speed of 24 meters per second from the top of a cliff. If the ball hits the ground 6.0 seconds later, approximately how high is the cliff?
Answer:
\(h=4m\)
Step-by-step explanation:
Speed \(V=24m/s\)
Time \(t=6.0s\)
Generally the equation for Height is mathematically given by
\(h=\frac{V}{t}\)
\(h=\frac{24}{6}\)
\(h=4m\)
Geometric sequences
Generate the first 4 terms
a1=1 r=2
If the first term is 1, and the ratio is 2
The first 4 terms are 1, 2, 4, 8
Barry wants to buy chickens. He has enough room for up to 12 chickens. Each hen costs $5 and each rooster costs $6. Barry doesn't want to spend more than $50. Write a system of inequalities to represent this scenario where x represents the number of hens and y represents the number of roosters.
The system of inequalities to represent this scenario for Barry will be:
x + y = 12
5x + 6y ≤ 50
What is an inequality?Inequalities are created through the connection of two expressions. It should be noted that the expressions in an inequality aren't always equal. Inequalities implies that the expressions are not equal. They are denoted by the symbols ≥ < > ≤.
Let x represents the number of hens.
Let y represents the number of roosters.
The inequality will be:
5(x) + 6(y) ≤ 50
5x + 6y ≤ 50
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whats 2 to the power of 4 in standard form??
Answer:
16....
Step-by-step explanation:
find the area of the region bounded by the given curves. y = 6x2 ln(x), y = 24 ln(x)
The area of the region bounded by the given curves. y = 6x2 ln(x), y = 24 ln(x) is 2.85 sq.units.
In this question we need to find the area of the region bounded by the given curves. y = 6x^2 ln(x), y = 24 ln(x)
Equating both the equations of the curve,
6x^2 ln(x) = 24 ln(x)
24 ln(x) - 6x^2 ln(x) = 0
x = 1, 2
This means, the curves intersect at x = 1 and x = 2.
So, the required area would be,
A = ∫[1 to 2] [24 ln(x) - 6x^2 ln(x)] dx
First we find the indefinite integral ∫[24 ln(x) - 6x^2 ln(x)] dx
= -6 ∫[-4 ln(x) + x^2 ln(x)] dx
= -6 ∫ln(x) (x^2 - 4) dx
= -6 ln(x) (1/3 x^3 - 4x) + 2/3 x^3 - 24x
So, ∫[1 to 2] [24 ln(x) - 6x^2 ln(x)] dx
= [-6 ln(x) (1/3 x^3 - 4x) + 2/3 x^3 - 24x] _(x = 1 to x = 2)
= 32 ln(2) - 58/3
= 22.18 - 19.33
= 2.85 sq.units.
Therefore, the area of the region is 2.85 sq.units.
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Help with this equation plzz
Answer:
option C I think
Step-by-step explanation:
I remember learning about this last year
Answer:
D
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = \(\frac{1}{3}\) x - 2 ← is in slope- intercept form
with slope m = \(\frac{1}{3}\)
Given a line with slope m then the slope of a line perpendicular to it is
\(m_{perpendicular}\) = - \(\frac{1}{m}\) = - \(\frac{1}{\frac{1}{3} }\) = - 3 , then
y = - 3x + c ← is the partial equation
To find c substitute (4, - 7) into the partial equation
- 7 = - 12 + c ⇒ c = - 7 + 12 = 5
y = - 3x + 5 → D
the soccer field at bianca’s school has a length of 120 yards and a width of 85 yards. if she runs across the diagonal from one corner to another, how far does she run, in yards? round your answer to the nearest tenth.
The distance that she runs from one corner of the field to another is given as follows:
147.1 yards.
What is the Pythagorean Theorem?The Pythagorean Theorem states that for a right triangle, the length of the hypotenuse squared is equals to the sum of the squared lengths of the sides of the triangle.
The distance in this problem is the diagonal of a rectangle, which is the hypotenuse of a right triangle in which the length and the width are the sides, hence:
d² = 85² + 120²
d = sqrt(85² + 120²)
d = 147.1 yards.
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yoko made $323 for 17 hours of work. at the same rat how much would she make for 8 hours of work
Answer:
$152
Step-by-step explanation:
To find Yoko's hourly pay, we will divide the $323 she made after working by 17, which is the number of hours she worked:
323 ÷ 17 = 19
We now know that Yoko makes $19 an hour (dang, she's probably a doctor or something) however, we're not done yet.
We will multiply $19 by 8 hours of work to see how much she'll make after 8 hours:
19 × 8 = 152
Yoko makes $152 after 8 hours of work.
Please rate 5 stars and/or say thanks if I helped!
~Roi
1. Differentiate the function f(x) = ln (81 sin^2 (x)) f’(x) 2. Differentiate the function P(t) = in ( √t2 + 9) p' (t) 3. if x2 + y2 + z2 = 9, dx/dt = B, and dy/dt = 4, find dz/dt when (x,y,z) = (2,2,1)
dz/dt =
First you will get 4dz
A train left Vicky's town and traveled for 4 hours and 50 minutes to Wildgrove. Then it traveled 2 hours and arrived in Westminster at 12:28 P.M. What time did the train leave Vicky's town?
Answer:
5:38 am
Step-by-step explanation:
Since the train arrived at it's final destination at 12:28 pm and it took two hours to get there. Subtract two hours from the final destination time and it's 10:28 am. Then it took 4 hours and 50 minutes to arrive to Wildgrove, so subtract four hours of the time when the train arrived. It is now 6:28 am. Subtract fifty minutes from that and you would get 5:38 am.
p.s. There are time calculators online if you need an answer if this is kinda hard to understand
please help me with this question fast!!!!
If you answer this question then you can might add me as a friend
Answer:
Bro dats 16
Step-by-step explanation:
8/2=4 (2+2)= 16
8 divided 2=4 2+2=4 4x4=16
Answer:
16
Step-by-step explanation:
8/2= 4
2+2=4
4x4+16
y + 1 = -2x-3 in standard form *
Answer:
y = -2x - 4
Step-by-step explanation:
y + 1 = -2x - 3
Subtract 1 from both sides to get the y by itself
y = -2x - 3 - 1
Simplify (Combine Like terms)
y = -2x - 4
three traffic lights on a street span 120 yards. if the second traffic light is 85 yards away from the first, how far in yards is the third traffic light from the seccond
The distance between the third traffic light from the second traffic light is 35 yards.
What is the distance?Three traffic lights on a street span 120 yards.
If the second traffic light is 85 yards away from the first.
Therefore, the third traffic light is 120 - 85 =35 yards away from the second traffic light.
This means that the third traffic light is directly adjacent to the first traffic light. The third traffic light from the second traffic light is at the same location as the first traffic light.
Thus, the distance between the third traffic light from the second traffic light is 35 yards.
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To make purple paint, you need 3 parts red and 5 parts blue. How much red paint is needed if I use 20 ounces of blue paint?
Answer:
12
Step-by-step explanation:
5x4=20
3x4=12
Answer:
12 Parts Red
Step-by-step explanation:
5*4=20
3*4=12
12 Parts Red
A tuss is a structure that consiss of members in to connect triangle so that the overall assembly... What is length a
Cas study
The length a on the truss is given as follows:
a = 20.
How to obtain the length a?As shown in the image given at the end of the answer, the truss is composed by a series of right triangles, hence the trigonometric ratios can be used to find the desired lengths on the truss.
The three trigonometric ratios are given as follows:
Sine of angle = length of opposite side divided by the length of the hypotenuse.Cosine of angle = length of adjacent side divided by the length of the hypotenuse.Tangent of angle = length of opposite side divided by the length of the opposite side.For side length a, we have that it represents the hypotenuse of a right triangle with side of 10 adjacent to the angle of 60º, hence the cosine function is used, as follows:
cos(60º) = a/10
1/2 = a/10
a = 2 x 10
a = 20.
Missing InformationThe truss is given by the image shown at the end of the answer.
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The measure of angle C is 20.5 angles C and D are complementary angles Find m
Answer:
69.5 if C and D both add up to 90, M=90 if both angles C and D were complementary to combine to a supplementary.
Step-by-step explanation:
You're trying to find m which is a variable for measurement for the "D" angle.
Info Given:
20.5 for angle C
Unknown for angle D
Both angles are Complementary.
_____________________________________________
I have 2 answers for this (The question was stated unclearly so I have 2 interpretations of this)
1st Answer:
If you're asking to solve for M but the C and D angles add up to 90 then do
90 - 20.5 = 69.5
2nd Answer:
We know that both angles are complementary which are 90-degree angles.
If we combine them then the angles add up to 180.
So C and D add up to form a Supplementary Angle.
20.5+69.5 + m = 180
Then M could possibly be 90.