Answer:
80days
Step-by-step explanation:
20m=60days
15m(will take more days)
20÷15×60 = 80 days
HELP!!! WHAT IS WRONG WITH MY ANSWER?!
this is the question is Estimate. 9.8 * 5.2 Choose 1 answer: a 5 b 50 c 500 d 5000
Answer: 50
Step-by-step explanation:
I am rounding it to 1 significant figure.
9.8 = 10 (round up when the last digit is 5, 6, 7, 8 or 9)
5.2 = 5 (round down when the last digit end with 0, 2, 3 or 4)
So it now is 10 x 5 = 50
Rounding to 1 significant figure, we get the product of 9.8 * 5.2 is 50. Thus, option B is correct.
What is rounding a number to some specific place?Rounding some number to a specific value is making its value simpler (therefore losing accuracy), mostly done for better readability or accessibility.
Rounding to some place keeps it accurate on the left side of that place but rounded or sort of like trimmed from the right in terms of exact digits.
Given product is 9.8 * 5.2
Now we are rounding it to 1 significant figure.
Round up when the last digit is 5, 6, 7, 8 or 9
9.8 = 10
Round down when the last digit end with 0, 2, 3 or 4
5.2 = 5
So, 10 x 5 = 50
Thus, option B is correct.
Learn more about rounding numbers here:
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What is the length of the side opposite the 45degree angle
Answer:
In a 45 - 45 - 90 triangle, the legs are equal and the ratio of sides from shortest to longest is 1 : 1 : √2 where 1 are the legs and √2 is the hypotenuse. In this case the leg is 10 / √2 = 5√2.
I need the answer to C.
Answer:
The answer to c is an arc
Answer:
it's an arc of the circle.
Step-by-step explanation:
An arc of a circle is a "portion" of the circumference of the circle.
Solve: 6(1-3) = 2(9-21)
Answer:-12=-24 FALSE
Step-by-step explanation:
6-18= -12
18-42= -24
The statement is false
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[tex]\text{Solve:}\\\\6(1-3) = 2(9-21)\\\\\text{Use the distributive property}\\\\6-18 = 18-42\\\\-12=-24\\\\\text{This would make the equation False, since -12 doesn't equal -24}[/tex]
What are the ordered pairs of the
solutions for this system of equations?
f(x) = x2 – 2x + 3; f(x) = -x + 5
(2, [?]); ([ ], [])
Answer:
The two points solutions to the system of equations are: (2, 3) and (-1,6)
Step-by-step explanation:
These system of equations consists of a parabola and a line. We need to find the points at which they intersect:
[tex]x^2-2x+3=-x+5\\x^2-2x+x+3-5=0\\x^2-x-2=0\\(x-2)(x+1)=0[/tex]
Since we were able to factor out the quadratic expression, we can say that the x-values solution of the system are:
x = 2 and x = -1
Now, the associated y values we can get using either of the original equations for the system. We pick to use the linear equation for example:
when x = 2 then [tex]y=-(2)+5=3[/tex]
when x= -1 then [tex]y=-(-1)+5=6[/tex]
Then the two points solutions to the system of equations are: (2, 3) and (-1,6)
Find the area of the shaded regions
Answer:
c
Step-by-step explanation:
Which inequality is represented by the accompanying graph?
Thank you!!!
Answer:
y<3
Step-by-step explanation:
It is y<3 because all areas below y=3 are shaded.
In addition, the line y=3 is dotted, which means it is not part of the inequality (i.e. strict inequality).
If it had been a full line, then it would be y<=3.
A regular hexagon has a radius of 4 inches. What is the approximate area of the hexagon? a. 24 b. 42 c. 48 d. 84
Answer:
The approximate area of the hexagon is 42 in²
Now, the length of one side is 4 inches.
Answer:
B. 42 in.^2
Step-by-step explanation:
Just took the Unit Test on Edg (2020-2021)!!
Help!!!!! please!!!!!
Answer:
Step-by-step explanation:
r = 15 ft
h = 22 ft
Volume of cylinder = πr²h
= π * 15 * 15 * 22
= 4950π
= 4950 * 3.14
= 15543 cubic ft
Evaluate the expression. 42−3⋅4+7 Enter your answer in the box.
Answer:
23
Step-by-step explanation:
Here we will use BODMAS
42 - 3⋅4 + 7
42 - 12 + 7
42 - 19 = 23
Answer:
Answer is 11
Step-by-step explanation:
I took the quiz
The function C (g) represents the cost to produce g gallons of chocolate chunk ice . Interpret the meaning of the statement C (765=164. It cost to produce gallons of chocolate chunk ice?
Answer:
It cost $164 to produce 765 gallons of chocolate chunk ice
Step-by-step explanation:
The function C(g) represents the cost (C) to produce g gallons of chocolate chunk ice.
Given the statement:
C(765)=164
Comparing with C(g), we have that:
Cost, C = $164
Number of gallons of chocolate chunk ice. g=765
Therefore, the meaning of the given statement is:
It cost $164 to produce 765 gallons of chocolate chunk ice
Five red marbles, 3 green marbles, and 2 blue marbles are place in a jar. What is the probability of selecting a green marble and then a blue marble, given the first marble is not returned to the jar after it is drawn?
Answer:
30%
Step-by-step explanation:
Since its 10 marbles we can just add 1 zero to each number
5 marbles = 50%
3= 30%
2= 20%
Answer:
Step-by-step explanation:
P=3/5 ×1/6=1/10
A. True
B. False
Plz answer
Answer:
TRUEStep-by-step explanation:
≅ mens the triangles are congruent (the same arcs and the same sides in both). Basicaly it means they are the same exept its positon (can be mirrored or rotated)
So if ΔDEF is the same as ΔABC and the same as ΔMNO that maens ΔMNO must be the same as ΔABC
{ΔABC≅ΔDEF and ΔDEF≅ΔMNO} ⇒ ΔABC≅ΔMNO
And if ΔMNO is the same as ΔABC and the same as ΔPQR that maens ΔPQR must be the same as ΔABC
{ΔABC≅ΔMNO and ΔMNO≅ΔPQR} ⇒ ΔABC≅ΔPQR
The mean of 3,x,14,11,13 is 10. find x
PLEASE HELP ASAP I BEG
factor out the greatest common factor. 6x^5-15x^2+12x=?
Answer:
Factor GCF: 3x(2x⁴ - 5x + 4)
Step-by-step explanation:
Simply take out the greatest variable first and then take out the GCF of the numbers to find out factored GCF.
please helllpppppp please hellepp
Answer:
b
Step-by-step explanation:
A line sloping upwards from left to right has a positive gradient.
A line sloping downwards from left to right has a negative slope
If the line crosses the y- axis above the x- axis then y- intercept is positive.
If the line crosses the x- axis below the x- axis then y- intercept is negative.
The line shown slopes downwards from left to right, thus negative gradient
The line crosses the y- axis above the x- axis thus y- intercept is positive
An infinite series is represented by:
Which of the following pairs of angles are supplementary? Select all that apply.
The supplementary angles are:
<1 and <3
<1 and <4
<2 and <3
<2 and <4
what are supplementary angles?Angles that add up to 180 degrees are referred to as supplementary angles. For instance, angle 130° and angle 50° are complementary angles since the sum of these two angles is 180°. The sum of complimentary angles is 90 degrees.
Given:
As, the supplement angles forms 180 angles.
So, from the angles that are supplementary are
<1 and <3
<1 and <4
<2 and <3
<2 and <4
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Write an equation for the vertical translation y=-2/9 |x| -7; 1 units down
Answer:
y = -2/9 |X| - 8
Step-by-step explanation:
I'm not certain whether the -7 is part of the |X| or it's just out of the equation. But shifting an equation up or down is very intuitive.
If you want to move an equation up a certain unit, you just add that many units (positive) onto the end of an equation. The same goes for moving a unit down, where you subtract that many units you want to go down.
Answer:
y=-2/9 |x| -8
Step-by-step explanation:
y = f(x) + C C < 0 moves it down
y=-2/9 |x| -7 Shift down 1 by subtracting 1
y=-2/9 |x| -7-1
y=-2/9 |x| -8
d. An effort of 10 N is applied to lift a load of 50 N. If the effort arm
is 10 cm, calculate the load arm, input work and output work
[Ans: 2 cm, 100 Nm, 100 Nm)
Answer:
Output work = 1Nm
Input work = 1Nm
Load arm = 0.02m
Step-by-step explanation:
Given the following :
Effort applied = 10N
Load = 50N
Effort distance = 10cm = 10/100 = 0.1m
Calculate : the load arm, input work and output work
Input work = Effort × distance moved by effort
Input work = 10N × (0.1)m = 1J
B) Load arm or load distance :
Mechanical advantage (MA) = load / effort
MA = 50 / 10
MA = 5
MA = input distance / output distance
5 = 0.1 / load arm
load arm = 0.1 / 5
load arm = 0.02m
C.) Output work :
Load × load distance
50N × 0.02
Output work = 1J
A bug splatters on the windshield of a moving car. Describe the 1. Forces 2. Impulses 3. Momentum changes 4. And accelerations of both the bug and the car
Answer:
acceleration=force/mass
Due to variation in the mass[ as same force as per magnitude acts on both of them] the acceleration developed in the bug will be more and the acceleration developed in the car is negligible.
impulse=change in momentum
The impulse of bug is more and that of car is small.
momentum changes=change in momentum
force=change in momentum/time of contact
the force exerted by car on the bug will be more than the converse
Total. momentum is conserved , so magnitude of change in momemtum or impulse is same. By Newtons third law, since the bug have smaller mass, its change in magnitude of velocity is larger.
Step-by-step explanation:
Save a wretched life by answering a geometry question in the pic
A.)10 B.)14 C.)7 D.)17
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WILL MARK BRAINLIEST!!! PLZ HELP!!!
Answer:
Choice C.
Step-by-step explanation:
There are students listening to music for 6.5 hours. So, the students will be in a range where the numbers on the x-axis go to 9.
According to the table, there are 11 students who listen to music for 0 to 3 hours. There are 3 students who listen to music for 3 to 6 hours. There is 1 student listening to music from 6 to 9 hours. This data matches up with the histogram from Choice C.
Hope this helps!
Which expression is equivalent to
3x + (-7) – 23x - (-2)?
Answer:
-20x -5
Step-by-step explanation:
3x + (-7) – 23x - (-2)
Subtracting a negative is like adding
3x -7 -23x +2
Combine like terms
3x-23x -7+2
-20x -5
Answer:
-20x - 5
Step-by-step explanation:
Simplify the expression
3x - 7 - 23x + 2
Combine like terms
-20x - 5
Use the substitution method to solve the system of equations. Choose the
correct ordered pair.
x + 3y = 9
y = x-5
A. (6,3)
B. (3,-2)
C. (1,-5).
D. (6,1)
Answer:
D (6,1)
Step-by-step explanation:
[tex]x + 3y = 9[/tex]
[tex]y = x-5[/tex]
When [tex]y = x-5[/tex], it means we don't need to move the variables to the left side and right side. We can use [tex]y = x-5[/tex] to substitute into the first equation [tex]x + 3y = 9[/tex] directly.
[tex]x + 3y = 9[/tex]
[tex]x+3(x-5)=9[/tex]
[tex]x+3x-15=9[/tex]
[tex]4x=9+15[/tex]
[tex]4x=24[/tex]
[tex]x=6[/tex]
When x=6, we can substitute the value of x into any equation whatever you want. You can choose [tex]x + 3y = 9[/tex] or [tex]y = x-5[/tex]. I choose [tex]y = x-5[/tex] is easier to get the value of y.
When x=6, substitute into [tex]y = x-5[/tex]
[tex]y=6-5[/tex]
[tex]y=1[/tex]
Hooray, now you have the value of x and y which are x=6 and y=1.
I hope you will understand the answer.
You can ask any question here if you still cannot get the point. Don't be shy.
Answer:
d (6,1)
Step-by-step explanation:
a pex
Suriland cannot both export wheat and keep bread plentiful and affordable in Suriland. Accordingly, Suriland's wheat farmers are required to sell their crop to the government, which pays them a dollar per bushel less than the price on the world market. Therefore, if the farmers could sell their wheat on the world market, they would make a dollar per bushel more, less any additional transportation and brokerage costs they would have to pay.
Which of the following, if true, most seriously weakens the argument?
(A) Suriland's wheat farmers have higher production costs than do farmers in many other wheat-producing countries.
(B) Sale of a substantial proportion of Suriland's wheat crop on the world market would probably depress the price of wheat.
(C) The transportation and brokerage costs that Suriland's farmers would face if they sold their wheat outside Suriland could amount to almost a dollar per bushel.
(D) Suriland is surrounded by countries that do not import any wheat.
(E) The price of a bushel of wheat on the world market occasionally drops below the average cost of producing a bushel of wheat in Suriland.
Answer:
the most accurate argument is (C) The transportation and brokerage costs that Suriland's farmers would face if they sold their wheat outside Suriland could amount to almost a dollar per bushel.
Step-by-step explanation:
The cost of transportation and other logistics is being covered by the government that is why the government pay less than dollar per bushel.
so the price of the wheat would have to decrease at home so that the cost of the transportation can be covered by the government who are buying directly from the farmers.
HELPPP PLZZZZZZZZZ i will make Brainlynest
Answer:
(11, 3)
Step-by-step explanation:
A force of newtons is applied to a 20cm^2 surface. The force applied is then increased by f Newtons and the surface area is increased by 5cm^2. Complete the following sentence describing the outcome of the increases.
Answer:
The pressure decreased by 18%
Step-by-step explanation:
Given two scenarios:
Step 1: Find the initial pressure
Initial force = 90 Newtons
Initial surface force is applied on = 20 cm²
Initial pressure = initial force/initial surface
*Note: the SI unit for pressure is N/m²
We need to convert cm² to m²
1 cm² = 0.0001 m²
20 cm² = 0.002 m²
Initial pressure = 90/0.002 m²
Initial pressure = 45,000 N/m²
Step 2: find new pressure
New force = 90+5 = 95N
New area = 20+5 = 25 m² = 0.0025m²
New pressure = 95/0.0025 = 38,000
Step 3: find the outcome of the increases by calculating the % change in pressure
% change in pressure = (new pressure - initial pressure)/initial pressure × 100
Thus,
% change in pressure = (38,000 - 45,000)/38,000 × 100
= -7,000/38,000 × 100
= -18.42 ≈ -18%
The outcome of the increase resulted in a decrease in pressure. Thus,
The pressure decreased by 18%
Answer:
The pressure is decreased by 15.56%