Answer:
B. Second
Step-by-step explanation:
Levers are defined as the simple machine, which consists of a rod fixed at a pivot, load, and fulcrum. The levers are classified into first class, second, and third class.
What is lever?A lever is a simple machine made of a rigid beam and a fulcrum. The effort (input force) and load (output force) are applied to either end of the beam. The fulcrum is the point on which the beam pivots. When an effort is applied to one end of the lever, a load is applied at the other end of the lever.
here, we have,
The difference between different types of levers are:
1. In the first-class levers, the fulcrum is present between the load and effort. The mechanical advantage can be greater, less, or equal to 1.
2. The second class levers, the load is present between the fulcrum and effort. The mechanical advantage is always greater than the 1.
3. The third class levers, the effort is present between the fulcrum and load. The mechanical advantage is always less than 1.
Thus, the correct answer is Option 1.
To know more about levers,
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complete question:
What distinguishes first class levers from both second and third class levers? A. The fulcrum is between the load and effort. B. There is a fulcrum on both sides of the load. C. Greater effort is required to move the load. D. The first class lever is not found in the human body. Please select the best answer from the choices provided. A B C D.
I'm a little bit confused about how to approach this can someone help?
Answer:
4
Step-by-step explanation:
ΔABC is congruent with ΔDEF. That means the corresponding sides are congruent.
Look at the order of the letters. EF are the last two letters of ΔDEF. So this corresponds with the last two letters of ΔABC. Therefore, EF ≅ BC.
EF ≅ BC
x² + 8x = 48
x² + 8x − 48 = 0
(x + 12) (x − 4) = 0
x = -12 or 4
Since x can't be negative, x = 4.
Triangle QRS has the angle measures shown.
What is the measure of the obtuse angle?
18
54
108
216
Answer:
C. 108Step-by-step explanation:
An obtuse angle has a measurement greater than 90 degrees but less than 180 degrees.Correct choice is
C. 108Answer:
108
Step-by-step explanation:
Meteorology A Weather forecaster uses a barometer to measure air pressure and make weather predictions. Suppose a standard mercury barometer reads 29.8 in. The mercury rises 0.02 in. And then false 0.09 in . The mercury falls again 0.18 in. Before rising 0.07 in. What does the word "rise" suggest? What does the word "fall" suggest?
Answer:
rise : atmospheric pressure increases
fall : atmospheric pressure decreases
Step-by-step explanation:
In the context, it is given that a weather forecaster takes the help of the barometer to check the air pressure and predicts the weather. The column of mercury level in the barometer shows a rise or fall in the glass tube as the weight of the atmosphere falling on the mercury surface changes.
Here it is given that the mercury rises for 0.02 in, then it falls 0.09 in, it then rises by 0.07 in and then again falls by 0.18 in. The word "rise" here shows that the weight of the atmosphere is more. In other words, increase in atmospheric pressure increases the level of mercury in the glass tube and the decrease in or "fall" in the mercury level shows the drop in atmospheric pressure.
please help me to solve this problem
Answer:
x=3
Step-by-step explanation:
[tex] \LARGE{ \underline{ \tt{Required \: answer:}}}[/tex]
To Solve:
[tex] \large\rm{ { \dfrac{3}{5} }^{x} . { \dfrac{5}{3} }^{2x} = \dfrac{125}{27} }[/tex]Solution:
[tex] \large\rm{ \leadsto { \dfrac{5}{3} }^{ - x}. { \dfrac{5}{3} }^{2x} = \dfrac{5 {}^{3} }{3 {}^{3} } } [/tex]
[tex]\large \rm{ \leadsto \dfrac{5 {}^{2x - x} }{ {3}^{2x - x} } } = \dfrac{5 {}^{3} }{ {3}^{3} } [/tex]
[tex]\large \rm{ \leadsto \dfrac{5 {}^{x} }{ {3}^{x} } = \dfrac{5 {}^{3} }{ {3}^{3} } }[/tex]
[tex] \large\rm{ \leadsto { \bigg( \dfrac{5}{3} \bigg) }^{x} = \bigg( \dfrac{5}{3} \bigg) ^{3} }[/tex]
Then,
[tex] \large{ \boxed{ \rm{x = 3}}}[/tex]The required value of x is 3.
⛱️ [tex] \large{ \blue{ \bf{FadedElla}}}[/tex]
Hank deposits money in an account that pays
1.5% simple annual interest. He earns $50.25
interest in the first year. How much money did
he deposit?
Answer:
principal = $3350
Step-by-step explanation:
principal = interest / (rate x time)
principal = 50.25 / (0.015 x 1)
principal = 50.25 / 0.015
principal = 3350
Which function rule does the graph represent?
In 56 years, Kevin will be 999 times as old as he is right now.
Answer:
55,944
Step-by-step explanation:
Answer:Wont that mean he would be dead? Or is he like a type of animal that lives for a very long time?
Step-by-step explanation:
Please help I need this answered. Find x and explain. I’ll give brainliest.
Answer:
I dont know what you mean by find x but if you want to find x you have to isoulat the varubal.
Step-by-step explanation:
Are the triangles similar? If so, determine the scale factor of POR and EFD? A) No B) Yes; 2:1 C) YES;4:5 D) Yes; 17:10
Answer:
C) yes
Step-by-step explanation:
a major Fishing Company does its fishing in a local League the first year of the company's operation it managed to catch 190000 fish due to population decreases the number of fish the company was able to catch decreased by 8% each year how many total fish did the company catch over the first 12 years round to the nearest whole number
The breadth and length of a rectangle are in the ratio 4:5 and its area is
32 sqm. What are the length and breadth?
Answer:
[tex]length=(\sqrt{40} )m,breadth=\frac{4\sqrt{40} }{5} m[/tex]
Step-by-step explanation:
So the ratio 4:5 relates the length and breadthNow the length is always longer that the breadth so 5 represents the length and 4 the breadthA ratio can be written as a fraction so [tex]4:5=\frac{4}{5}[/tex] Let [tex]l[/tex] mean length and [tex]b[/tex] breadth, so the ratio [tex]b:l=4:5,so,b:l=\frac{b}{l}=\frac{4}{5}[/tex] So if [tex]\frac{b}{l}=\frac{4}{5}[/tex] then multiply both sides by [tex]l[/tex] and you get [tex]b=\frac{4}{5} l[/tex] Now the equation for area is [tex]area=length*breadth[/tex] or [tex]A=l*b[/tex]Since our breadth [tex]b[/tex] equals [tex]\frac{4}{5} l[/tex] then we substitute for the breadthSo [tex]A=l*(\frac{4}{5}*l)=\frac{4}{5}*l*l=\frac{4}{5} l^2[/tex] so [tex]A=\frac{4l^{2}}{5}[/tex] We know the Area is [tex]32m^2[/tex] so [tex]32m^2=\frac{4l^{2}}{5}[/tex] so we simplify [tex]5*(32m^2)=5*(\frac{4*l^{2}}{5})\\ 160m^2=4*l^2\\ \frac{160m^{2}}{4}=\frac{4*l^{2}}{4} \\ 40m^2=l^2\\ l^2=40m^2\\ \sqrt{l^{2}} =\sqrt{40m^{2}} \\ l=(\sqrt{40})m[/tex] Now we find the breadth, since [tex]b=\frac{4}{5}*l \\ b=\frac{4}{5}*(\sqrt{40} )m\\ b=\frac{4\sqrt{40} }{5} m[/tex]A boat was bought for $9500 and sold at a profit of 32%. What was the selling price ?
select all the factors of:
x^2+ 3x - 10
A) (x-5)
B) (x+2)
C) (x-2)
D) (x+5)
Answer:
c & d
Step-by-step explanation:
Factor x^2 + 3 x − 10 using the AC method
hye guys i ned help
how do you muiltply dobule digits lik 10x11 help!!!!!!!!!11!
Answer: 11 x 10 = 110.
Step-by-step explanation: you can use a calculator for these types of problems
Answer:
One way is that you do across multiplication so if you did that for 10x11 that'll equal 110
Step-by-step explanation:
can someone please help me with this problem will give me brainliest.
Answer: as a decimal 274877906944
Step-by-step explanation:
hey guys what is point Q on this one??
Answer:
Letter c is the answer
Step-by-step explanation:
Hope this helped!!
A flagpole is 15 feet tall. Its shadow is 20 feet long. How far is it from the top of the flagpole to the end of the shadow?
Answer:
5 feet.
Step-by-step explanation:
The angle of the height and length go down to 5 feet diagonally.
Answer:
25ft
Step-by-step explanation:
To find the length of the top of the flagpole to the end of the shadow, you have to use the Pythagorean theorem a² + b² =c²
15² + 20² = x²
225 + 400 = x²
625 = x²
√625 = √x²
x = 25
PLEASE HELP
Jennifer walks 9 blocks south and 5 blocks west. Approximately how many blocks is she from
home if she were to take a direct path?
Answer:
10.3 (Rounded up)
Step-by-step explanation:
Pythagorean's theorem.
a^2 + b^2 = c^2
You're finding c^2, which is the direct path she would take to get back home. 9^2 + 5^2 is 81 + 25 = 106. Square root of 106 is 10.3 rounded up.
The table shows the prices of some candy items at a store. Jake selected 1.6 pounds of Fruit Chews and 2.6 pounds of Jelly Beans. The sales tax for his purchase was $0.52.
Item Price Per Pound.
Fruit Chews. $4.70
Jelly Beans. $2.35
Chocolate. $3.50
If Jake had $25 to spend at the candy store, how much money did Jake have left after his purchase?
Answer:
10.85
Step-by-step explanation:
1.6 x 4.70 + 2.6 x 2.35 = 7.52 + 6.11 = 13.63 + .52 = 14.15
25 - 14.15 = 10.85
Jake has $10.85 dollars left
A picture frame 4 inches wide by 6.5 inches high has a 3 inch by 5 inch photograph place in the center. What is the area of the frame?
Area = l × w
= 6.5 × 4
= 26 feet2
Answer:
[tex]A_f=11~inches[/tex]
Step-by-step explanation:
Area of a Rectangle
A rectangle of width W and height H has an area of:
A = W.H
We have one rectangle inside another. The first rectangle corresponds to the frame and its contents. The second rectangle corresponds to the photograph.
The area of the frame without its contents is the difference between both areas:
[tex]A_f = A_e-A_i[/tex]
Where Ae is the external area of the frame, and Ai is the internal frame of the photograph.
The frame has W=4 inches and L=6.5 inches, thus:
[tex]A_e=4~inches*6.5~inches[/tex]
[tex]A_e=26~inches[/tex]
The photograph has W=3 inches and L=5 inches, thus:
[tex]A_i=3~inches*5~inches[/tex]
[tex]A_i=15~inches[/tex]
The area of the frame is:
[tex]A_f = 26 - 15 = 11~inches[/tex]
[tex]\mathbf{A_f=11~inches}[/tex]
Given congruent triangles ΔRST ΔLMN where MN = 33, LN = 54, and RT = 4x+6 . Find the value of x
Answer:
x=12
Step-by-step explanation:
We know that both triangles are congruent meaning corresponding parts are equal. We know that line LN=54 and that RT=LN meaning that RT also equals 54. With that information we can simply subtract 6 from 54 to get 48 then divide by 4 to get 12. Hope this helps!
Najenda has $17.25 in her pocket and several twenty dollar bills in her purse she has a total of $297.25 . write and solve an equation to show how many bills she has
40% of attendees at Martika's wedding order
the steak for dinner. There are 160 people eating
steak. How many people will be at the wedding?
Answer:
400 people
Step-by-step explanation:
equation: 40/100 = 160/x
cross multiply: 40 * x = 100 * 160
multiply: 40x = 16000
divide each side by 40: x = 400
there is 400 people
I hope this helped, please mark Brainliest, thank you !!
what number must be added to the expression below to complete the square x^2+8x-5=15
Answer:
Add 16 to both sides.
General Formulas and Concepts:
Pre-Alg
Equality PropertiesAlgebra I
Completing the Square: b/2aStep-by-step explanation:
Step 1: Define expression
x² + 8x - 5 = 15
Step 2: Solve
Isolate x terms: x² + 8x = 20Complete the Square: (x² + 8x + 16) = 20 + 16Simplify: (x + 4)² = 36Write and equation that represents the graph
Answer:
Assuming this is slope intercept form: y= 6/5x+-5
Step-by-step explanation:
Brainlist thingy and 20
Kong took %15, percent fewer seconds than Nolan took to complete his multiplication timed test. Kong took 85 seconds.
How many seconds did Nolan take?
Answer:
Nolan takes 100s
Step-by-step explanation:
x = x - 15x/100
x = 0.85x
x = 85/0.85
x = 100s
As an estimation we are told 5 miles is 8 km.
Convert 96 km to miles.
Answer:
90km is equal 56.25 miles
Answer:
Around 60 miles.
Step-by-step explanation:
First I found that 1 mile was equivalent to around 1.6 km.
8/5=1.6
To find how many miles were equivalent to 96 km I did
96/1.6=60.
60 miles are equivalent to 96 km.
(If you used a km to miles converter it would say exactly 59.6516)
Eric conducted a survey of the cars in four parking lots and wrote the following observations:
15 of the 36 cars in lot 1 were blue
43 of the 92 cars in lot 2 were blue
12 of the 30 cars in lot 3 were blue
32 of the 52 cars in lot 4 were blue
Based on the survey, which parking lot had the greatest percentage of blue cars?
Lot 1
Lot 2
Lot 3
Lot 4
LOT 4 its the answer
what is z- 4/4 +8 simplified?
Answer:
aw baby naw that not cool
Step-by-step explanation:
Please help ASAP! Is angle BAD less than, greater than, or equal to 90 degrees? Explain why. What about angle BCD?
9514 1404 393
Answer:
∠BAD < 90°∠BCD > 90°Step-by-step explanation:
Angle BAD is an inscribed angle, so is half the measure of the arc it intercepts. Chord BD is on the far side of the circle's center from vertex A, so the arc intercepted by angle BAD is less than 180°. This means angle BAD is less than 180°/2 = 90°.
∠BAD < 90°
__
Angles BAD and BCD are supplementary, so if one is less than 90°, the other must be greater than 90°.
∠BCD > 90°
Answer: I would say that it is equal to.
Step-by-step explanation: The angle in the bottom corner of the triangle is a right angle if you measure it with a protractor.