Answer:
4 streamlined shapes reduces friction on airplane
A streamlined shape reduces friction on an airplane. The correct statement is 4.
What is decision-making?The process of making choice is by identifying the correct decision, gathering information, and assessing alternative solutions.
To determine the correct statement will be
1. Friction is a force causing rotation.
The statement is incorrect because the cause of rotation is force.
2. Efficiency of the lever is a highly efficient 1st class lever.
The statement is incorrect.
3. Torque is output divided by input.
The statement is incorrect because the output divided by input is known as productivity.
4. Streamlined shape reduces friction on an airplane.
The statement is correct.
5. Equal-arm balance loss of energy.
The statement is incorrect.
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Which of the following equations has no solutions?
A) 2x – 6 = 2x + 8
B) 4x – 8 = 10
C) 5x + 20 = 5x + 20
D) 9x = 9
Answer: I did the math in my head and I think it’s B
Step-by-step explanation:
Suppose ABCD is a rhombus with AB = 12 inches. The midpoints of its sides are joined to form a quadrilateral. What type of quadrilateral is formed?
Answer:
A rectangle
Step-by-step explanation:
The given parameters are;
The quadrilateral ABCD is a rhombus;
The length of the sides of the rhombus = 12 inches
The lengths of the sides of a rhombus are equal
The opposite interior angles of the rhombus are equal
The length of each midpoint from the vertex = 12 in./2 = 6 in.
Therefore, we have;
The line joining the midpoints form a quadrilateral with the length of the opposite sides equal
The sum of the interior angles of the rhombus = 180°
From the diagram created with Microsoft Visio, we have;
4·a + 4·b + 360 = 4 × 180 = 360 + 360
4·a + 4·b = 360
a + b = 90°
We have;
The interior angles of the quadrilateral formed = x
a + b + x = 180° Sum of angles on a straight line
∴ x = 180° - (a + b) = 180° - 90° = 90°
x = 90°
Therefore, the interior angles of the quadrilateral formed = 90°
The quadrilateral formed having equal opposite sides, and all interior angle of 90° each is a rectangle
If the value of y varies inversely with x , which function represents the relationship between x and y if y = 48 when x = 3?
A. Y= 144/x
B. Y= 16/x
C. Y= x/16
D. Y= x/144
Answer:
A. Y = 144/x
Step-by-step explanation:
Inversely means y = 1/x
If y = 48, when x = 3
so 144/3 = 48
Therefore the answer is A
If the value of y varies inversely with x then the function Y= 144/x represents the relationship between x and y if y = 48 when x = 3
What is a function?A relation is a function if it has only One y-value for each x-value.
If y varies inversely with x, it means that y is inversely proportional to x, or y=k/x, where k is a constant of proportionality.
To find k, we can use the given values of y and x:
y = k/x
48 = k/3
k = 144
Now that we know k, we can write the function that represents the relationship between x and y:
y = 144/x
Therefore, if the value of y varies inversely with x then the function Y= 144/x represents the relationship between x and y if y = 48 when x = 3
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solve for the right triangle
Answer:
its a little blurry
Step-by-step explanation:
That is the relationship between the pair of angles ZAXC and _BXC shown
in the diagram?
100"
80°
A
B
A. They are supplementary angles,
B. They are right angles,
C. They are vertical angles.
D. They are complementary angles,
The correct relationship between the pair of angles m ∠AXC and m ∠BXC are,
A. They are supplementary angles,
What is mean by Angle?An angle is a combination of two rays (half-lines) with a common endpoint. The latter is known as the vertex of the angle and the rays as the sides, sometimes as the legs and sometimes the arms of the angle.
Given that;
Measure of angle m ∠AXC and m ∠BXC are,
m ∠AXC = 100 deg.
m ∠BXC = 80 deg.
Hence, We get;
m ∠AXC + m ∠BXC
= 100 + 80
= 180 degree
Thus, The correct relationship between the pair of angles m ∠AXC and m ∠BXC are,
A. They are supplementary angles,
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Write a brief summary of what you know about
slope.
In a bag of marbles, 12% were red, 14% were blue, and the rest were
white. If the bag has 250 marbles, how many were red or blue?
Answer:
30 marbles were red
35 marbles were blue
Step-by-step explanation:
turn the percentages into decimals and multiply by total value
0.12•250= 30 red marbles
0.14•250= 35 blue marbles
hope this helps <3
help me this is difficult
Answer:
Last one
Step-by-step explanation:
I’ve attached my work, hope this helps!
Its the last one
Step-by-step explanation:
trust me on this one
A dune buggy company rents dune buggies at the beach. They charge an initial fee of $30 plus
$10 for each hour the buggy is rented. Let x represent the number of hours and y represent the
total cost of the rental.
b. What is the slope-intercept equation of the line that fits this information?
Answer: y = 10x + 30 is the correct answer
Can someone help me please
Answer:
15
Step-by-step explanation:
Tuesdays interquartile range is 45, and monday's is 30. 45 - 30 = 15. Hope this helps!
complete the table for each value of m. an the table be used to show that the expression are equivalent? explain
it is qustion 4. i really need help
Answer and Step-by-step explanation:
m_| 2(3m + 7) |_6m + 14_|
1 | 20 | 20 |
2 | 26 | 26 |
This table can be used to show that the expression are equivalent because every time the variable was plugged in, the output was the same for both equations.
Also, the first equation is the undistributed version of the second equation.
#teamtrees #PAW (Plant And Water)
what is a simulation
A: the probability of two or more events happening at once
B: a model of a real-world situation that can be used to find probabilities
C: a probability based on expected results
D: a probability based on actual results from an experiment
Answer:
b
Step-by-step explanation:
its a simulation of the real work or place etc
Y=2x-10
3x-7y=37 I need to solve by substitution
Answer:
x=3, y=-4
Step-by-step explanation:
3x-7(2x-10)=37
3x-14x+70=37
-11x=37-70
-11x=-33
x=3
y=2(3)-10
y=6-10
y=-4
Please do 6-7 ASAP
Answer:
Step-by-step explanation:
(6). y = [tex]\frac{1}{3}[/tex] x + 2 [ linear function ]
(7). y = 4 [ horizontal line, linear function ]
(8). x = 2 [ vertical line, not a function ]
Someone please help me!!!!!
1. A scientist is growing cell cultures and examining the effects of various substances on them as part of his research. The culture in one petri dish increases according to the expression +47 + 4 for timet in minutes. Another increases according to 12 + 2t+4. He needs to feed all the cells equally, so he needs to know the expression for the total number of cells in both dishes because the food is proportional to the total number of cells. Find the expression.
Pay attention in class
In ΔIJK, j = 800 cm, k = 240 cm and ∠I=173°. Find the area of ΔIJK, to the nearest square centimeter.
Answer:
11699 square centimeters
Step-by-step explanation:
In ΔIJK, j = 800 cm, k = 240 cm and ∠I=173°. Find the area of ΔIJK, to the nearest square centimeter.
When given two sides of a triangle and an angle, the area of the triangle is calculated as:
1/2jksintheta
theta = 173°
Hence:
Area of triangle =
1/2 × 800 × 240 × sin 173
= 11699.456967 square centimeters
Approximately = 11699 square centimeters
A local company employs a varying number of employees each year, based on its needs. The labor costs for the company include a fixed cost of $44,604.00 each year, and $27,396.00 for each person employed for the year. For the next year, the company projects that labor costs will total $1,715,760.00. How many people does the company intend to employ next year?
A.
731
B.
125
C.
61
D.
31
The cell phone company charges $42 plus .02 per text (t). Which algebraic expression represents the total charge per
month?
A. 42.02t
B. 42 + .02t C. 44t. D. 42 + t
PLEASE HELP
Answer:
the answer is b) 42 + .02t
What is the constant rate of change between the two quantities
in the table? PLLSSS HELP PLSSSSSSS GIVING BRAINLIEST
Time (minutes) (x) 15 30 45 60
Number of Pages Read(y) 10 20 30 40
Answer: number of pages is going by 10. The number of minutes is multiplying 2 times.
Step-by-step explanation:
To find the COP use an in book resource or search it pretty simple
1. Bernardo de Gálvez was a friend to the United States. He helped in providing _____________ and weapons.
Abigail is 54 inches tall. Which of the following is Abigail's height?
Answer:
If you wanted it to be converted to ft, then her height would be: 4 ft , 5 inches
~hope this has helped you out, have a gr8 day!~
Step-by-step explanation:
Brand XYZ dog food costs $36 for 15 pounds of dog food . What is the cost per pound?
Answer:
$2.40
Step-by-step explanation:
36÷15=2.4
since we are talking about money you add a zero.
Hope this helps
Cost of the dog food per pound is $2.4
What is cost?Cost is the value of money that has been used up to produce something or deliver a service
Cost of 15 pound of dog food = $36
Cost of 1 pound of dog food = [tex]\frac{36}{15}[/tex]= $2.4
Hence, the cost of 1 pound of dog food is $2.4
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factorise (x+3)²-25
help meeeeee
Answer:
(x + 8)(x - 2)
Step-by-step explanation:
(x+3)²-25
x² + 6x + 9 - 25
combine like terms:
x² + 6x - 16
(x + 8)(x - 2)
A 4-L water filter is used to fill 200 mL cups and three 750 mL drink bottles How much water is left in the water filter
Answer:
1550 mL
Step-by-step explanation:
Total capacity of water = 4 Litre
4 L = 4 * 1000 mL = 4000 mL
200mL cups filled = 1 ; 200 mL
750mL cups filled = 3 ; 750 * 3 = 2250 mL
Total = (200 + 2250) mL = 2450 mL
Water left in filter :
(4000 - 2450) mL = 1550 mL
please help with this vocab will mark brainliest
Answer:
1. Semicircle
2. Arc Length
3. Minor arc
4. Arc Measure
5. Circumference
6. Diameter
7. Radius
Plz telll me someoneeee
Step-by-step explanation:
part 1
Area =2L×2B
2(9in) ×2(6in)
18in×12in
=216in²
Part 2
Area of a triangle =½×base ×height
½×9in×14in
=63cm²
There are 7 cupcakes, 2 brownies, and 6 cookies on a platter what is the ratio of cupcakes to brownies?
7x(15+5) plz help me solve this question by formula BODMAS
The brackets are first, then the multiplication
Which of the following set of numbers is made up of integers?
1. -12, 0, +11, -14, +13
2. 12, -15, 0, 1/4, 0.75
3. -3.2, 4.75, 0, 1 1/2, -3/4
4. None of the above
Answer:
the answer is number 1
Step-by-step explanation:
integers are whole numbers