Answer:
5 words.
Step-by-step explanation:
We have been given a graph that shows the number of words remembered after 5 minutes and the number of text messages sent to the participants as distractions. We are asked to find the number of words learned by a student, if he or she is distracted by 7 text messages.
We can see that x-axis represents number of sent text messages and y-axis represents number of words learned by a student.
To find the number of words learned by a student, when student is distracted by 7 text messages, we need to find the y-coordinate corresponding to on the given line.
We can see that the value of y is 5 at , therefore, a person will remember 5 words, if he or she is distracted by 7 text messages.
5 words would a person remember after being distracted by 7 text messages.
What is Graph?The graph is simply a structured representation of the data. It aids in our comprehension of the data. The numerical information gathered through observation is referred to as data.
In a line graph, the information or data is represented as a series of markers, or dots, and is then connected to one another by a straight line.
Given:
A graph that displays the number of words retained after 5 minutes and the quantity of text messages sent to participants to serve as diversions has been provided to us.
We can see that the y-axis shows how many words a pupil has learned, and the x-axis shows how many text messages have been sent.
It is necessary to locate the y-coordinate on the supplied line that corresponds to the value of x=7 in order to determine how many words a student acquired while being distracted by 7 text messages.
A person will only retain 5 words if they are distracted by 7 text messages, as we can see from the value of y at x=7.
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Solve x2 + 12x = –11 by completing the square. Which is the solution set of the equation?
Answer:
you add the 11 back to the other side making it x^2+12x+11=0
then you factor it
(x+11)(x+1)
you should know what to do from here
Answer:
Step-by-step explanation:
x2 + 12x = –11
x2 + 12x +36 = –11 + 36
(x+6)^2 = -11 + 36 = 25 = (+/- 5)^2
x+6 = +/- 5
x+6 = +5 => x=-1
x+6 = -5 => x = -11
So the solution set is S = {-1, -11}
pls need help now.
Answer:
θ = {π/6, 5π/6} +2kπ . . . . for any integer k
Step-by-step explanation:
Multiplying by the product of the denominators, we can simplify this to ...
sin(θ)² +(1+cos(θ))² = 4sin(θ)(1+cos(θ))
sin(θ)² +1 +2cos(θ) +cos(θ)² = 4sin(θ)+4sin(θ)cos(θ)
2 +2cos(θ) = 2sin(θ)(2 +2cos(θ)) . . . . show similar factors
2(2sin(θ) -1)(1 +cos(θ)) = 0 . . . . subtract left side, complete the factoring
These factors are zero when ...
2sin(θ) -1 = 0 ⇒ sin(θ) = 1/2 ⇒ θ = π/6, 5π/6
1 +cos(θ) = 0 . . . . . extraneous solution; makes equation undefined
__
Solutions are periodic with period 2π, so the complete solution set is ...
θ = {π/6, 5π/6} +2kπ . . . . for any integer k
Expand the following:
a) 3(x + 5)
b) 4(x-4)
c) 2(5x + 1)
d) 7(x-9y)
Answer:
a. 3x+15b. 4x-16c. 10x+2D. 7x-63ysolution,
[tex]a. \: 3(x + 5) \\ \: \: = 3 \times x + 3 \times 5 \\ \: \: = 3x + 15[/tex]
[tex]b. \: 4(x - 4) \\ \: \: = 4 \times x - 4 \times 4 \\ \: \: = 4x - 16[/tex]
[tex]c. \: 2(5x + 1) \\ \: = 2 \times 5x + 2 \times 1 \\ \: \: = 10x + 2[/tex]
[tex]d . \: 7(x - 9y) \\ \: = 7 \times x - 7 \times 9y \\ \: \: = 7x - 63y[/tex]
Hope this helps..
Good luck on your assignment..
Answer:
a) 3(x + 5) =
= 3x + 15
b) 4(x-4) =
= 4x - 16
c) 2(5x + 1) =
= 10x + 2
d) 7(x-9y) =
= 7x - 63y
PLEASE HELP ASAP I BEG
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!
The planner needs a clearance of 9 feet under the arch. Has the planner met the minimum height?
Answer:
Yes,planner has met the minimum height, as minimum height was 9 feet and maximum height of arc is 9.6 feet
Step-by-step explanation:
The question is incomplete as all the details have not been given in the question.I have attached the complete question and its options at the bottom. Consult in for better understanding.
As we can see that at the mid value, for x=4, the value of f(x)=9.4
It means that the maximum height occurs at mid of the arc where it is height is 9.6 feet above the ground.
It means that the planner has met the minimum height, as minimum height was 9 feet and maximum height of arc is 9.6 feet
Answer:
B on Edge
Step-by-step explanation:
yes, because the width of the arch is 9.6 feet
PLEASE HELP!! will mark brainliest! Complete the point-slope equation of the line through (1,3) and (5,1). y-3=
Answer:
Step-by-step explanation:
(1-3)/(5-1)= -2/4 = -1/2
y - 3 = -1/2(x - 1)
y - 3 = -1/2x + 1/2
y - 6/2 = -1/2x + 1/2
y = -1/2x + 7/2
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.
The mean of 3,x,14,11,13 is 10. find x
HELP!!! WHAT IS WRONG WITH MY ANSWER?!
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
the average age of 15 men is 40 years the average age of 10 woman is 10 years find the total of average age of these people
Answer:
28
Step-by-step explanation:
15 × 40= 600
10 × 10 = 100
600 + 100 = 700
15 + 10= 25
700÷25= 28
Step-by-step explanation:
A=40years
no. = 15m
total will be 40×15 = 600men
women 10×10 = 100 women
total average = 700÷25 = 28
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.
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
how are slopes different from each other?
Answer:
the slope is the rise over run so how ever many up it goes over how far side to side it goes these numbers are fractions and will very based on the rise over run.
Step-by-step explanation:
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.
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
<!> Brainliest is appreciated! <!>
[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]
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%
Here is a pattern made from sticks: a)How many sticks would be in pattern 6? b) How many sticks would be in pattern number n?
Answer:
a) 26
b) 4n+2
Step-by-step explanation:
From the given figure it is clear that,
Number of sticks in pattern 1 = 6
Number of sticks in pattern 2 = 10
Number of sticks in pattern 3 = 14
Now,
6, 10, 14, ...
It is an AP.
Here, first term = 6
Common difference = 10 - 6 = 4
nth term of an AP is
[tex]a_n=a_1+(n-1)d[/tex]
where, [tex]a_1[/tex] is first term and d is common difference.
So, nth term of given AP is
[tex]a_n=6+(n-1)4[/tex]
[tex]a_n=6+4n-4[/tex]
[tex]a_n=4n+2[/tex]
Now, substitute n=6 in the above equation to find the number of sticks in pattern 6.
[tex]a_n=4(6)+2=24+2=26[/tex]
Therefore, the number of sticks in pattern 6 is 26.
Since [tex]a_n=4n+2[/tex], therefore, the number of sticks in pattern n is 4n+2.
Answer:
A)26
B)4n+2
Step-by-step explanation:
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.
a) If a:b = 2:5 and b:c = 3:4, find (i) a:c(ii) a:b:c
b) If x:y = 1:2 and y:z = 4:5, find (i) x:z(ii) x:y:z
Answer:
A i. a:c=3:10
ii. a:b:c=2:5:10
B i. x:z=2:5
ii. x:y:z=2:4:5
Step-by-step explanation:
A.) If a:b = 2:5 and b:c = 3:4, find (i) a:c(ii) a:b:c
a:b=a/b=2/5
b:c=b/c=3/4
a/b*b/c=a/c
2/5*3/4=a/c
6/20=a/c
3/10=a/c
Therefore, a:c=3:10
a:b:c
a:b=2:5
b:c=3:4
b is common to both ratios
The value of b in the first ratio is 5 and b is 3 in the second ratio
Lets take the LCM of both values
LCM of 5 and 3=15
So, we will change the value of b in the first ratio and second ratio to 15
By doing this, we will multiply the whole first ratio by 3
We have, 6:15
We multiply the whole second ratio by 5
We have, 15:20
Therefore a:b:c=6:15:20
=2:5:10
B. If x:y = 1:2 and y:z = 4:5,
x:y=x/y=1:2
y:z=y/z=4:5
x/y*y/z=x/z
1/2*4/5=x/z
4/10=x/z
2/5=x/z
Therefore, x:z=2:5
x:y:z
x:y=1:2
y:z=4:5
y is common to both ratio
Take the LCM of y values in both ratio
LCM of 2 and 4 =4
So,we will change the value of y in the first and second ratio to 4
By doing this, we will multiply the whole first ratio by 2
We have, 2:4
We will also multiply the whole second ratio by 1
We have, 4:5
Therefore, x:y:z=2:4:5
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
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
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
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)!!
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.
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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:
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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Save a wretched life by answering a geometry question in the pic
A.)10 B.)14 C.)7 D.)17
oooooooooooooooooooooooooooooooo
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.