Answer:
true
Step-by-step explanation:
The given statement is true.
What are credible source?A credible source is one that is written by someone who is an expert in their discipline and is free of errors and bias.
Yes, identifying the purpose would increase the credibility of the source.
Including the intent of the information in the source will help place the information in a wider context - and often the context is necessary to fully understand the content of a source.
Otherwise, researchers or journalists would question the authenticity of the source. When doing research, it is very important to have enough credible sources to support the arguments of our work. So researchers need to double-check the validity of the information, make comparisons if necessary, that can prove the data included in the research is correct.
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Help ASAP!!!! The bill for dinner at Island's was $56.98 If we would like to leave a 20% tip for the waiter, how much money should we leave for a tip?
a
$11.40
b
$20.00
c
$11.30
d
$5.70
Answer:
$11.40
Step-by-step explanation:
make the percent a decimal and multiply the total by the percent in decimal form
56.98*0.20=11.396
then round to the nearest tenth
11.40
Shannon makes and sells picture frames. She charges different rates depending on the material she uses for the frame. Shannon sold a frame for $45. Which type of frame did Shannon sell? Use the drop-down menus to show and explain your answer.
Answer: Shannon sold the silver plated frame because 45 divided by 2.5 = $18, which is the wood frame rate.
STEP BY STEP EXPLANATION:
I know this because 45 divided by 2.5 = $18 And that’s the silver plated frame.
A
rope
cut off?
is 3m long. If 25% is cut off, how many com was
25% of 3
Answer:
0.75meters
Step-by-step explanation:
25% of 3 is 0.75
Plz mark me brainliest
What is the probability that a randomly selected customer likes hot or iced coffee?
A.
B.
C.
D
Answer:
0.83
Step-by-step explanation:
add the hot, cold, and both sections together
xoxo, your highness...The probability of people liking hot or iced coffee is 0.61. Therefore, option C is the correct answer.
What is the probability?Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.
We know that, probability of an event = Number of favourable outcomes/Total number of outcomes
Given that, according to sales records at a local coffee shop, 75% of all customers like hot coffee, 30% like cold coffee and 22% like both hot and iced coffee.
People like only hot coffee = 0.53
People like only iced coffee = 0.08
Customers like hot or iced coffee =0.53+0.08
= 0.61
Therefore, option C is the correct answer.
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Find the distance between the points (4,-3) and (5,1)
Distance =
Answer:
d = sqrt(17)
Step-by-step explanation:
d = sqrt( x2 - x1)^2 + (y2 - y1)^2 )
d = sqrt( (4 - 5)^2 + (-3 - 1)^2 )
d = sqrt( (-1)^2 + (-4)^2 )
d = sqrt ( 1 + 16)
d = sqrt(17)
Solve for X...........
Answer:
x = 60°
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASEquality PropertiesGeometry
A box on an angle signifies a 90° angleAll angles in a triangle add up to 180°Step-by-step explanation:
Step 1: Set up equation
x° + 90° + 30° = 180°
Step 2: Solve for x
Combine like terms: x + 120 = 180Subtract 120 on both sides: x = 60°Find the range for the observations,5.6,7.1,8.3,3.7,6.8,4.1,8.4,2.7,4.4,8.2,2.8
Answer:
the range is 8-1=7
Step-by-step explanation:
James ran 4 laps and walked 2 laps when running his average speed was 2.5 minutes per lap when walking his average speed was 4.9 minutes per lap how long did it take james to complete the 6 laps
Answer:11.1 I believe?
Step-by-step explanation:
Forgive me if I am wrong.
Answer:
14.8
Step-by-step explanation:
im gessing thats what it is
Pls help need to pass lesson
Answer:
Explanation below
Step-by-step explanation:
First Degree Equations
A first-degree equation can have one, none, or infinitely many solutions.
An equation like
2x + 3 = -x + 6
Has one solution: x=1
An equation like:
4x + 2 = 4x + 1
Has no solutions because when trying to solve for x we get:
2 = 1
This equality is false and no value of x can make it true
Finally, the equation:
3x + 2 = x + 2x + 2
Has infiniteyl many solutions, because when trying to solve it, we get:
2 = 2
Which is true regardless of the value of x
The first given equation:3x + 9 + 4x + x = ??
can be simplified as:
8x + 9 = ??
For this equation not having solutions, we should have 8x plus any number but 9 on the right side of the equation:
8x + 9 = 8x -3, or
8x + 9 = 8x + 4
The second given equation:3x + 9 + 4x + x = ??
can be simplified as:
8x + 9 = ??
If the equation has one solution, the only condition is that we should not have 8x on the right side. Thus any of those will do:
8x + 9 = 3x + 9
8x + 9 = -x + 5
8x + 9 = 0
The third equation:3x + 9 + 4x + x = ??
can be simplified as:
8x + 9 = ??
For this equation to have infinitely many solutions, the right side must be exactly equal to the left side:
8x + 9 = 8x + 9
What is -3/4 + 2 3/4
3 1/2
3 3/4
2 1/2
2
Answer:
2
Step-by-step explanation:
Answer:
Fourth Option
Step-by-step explanation:
In order to find the answer to this question you need to change the mixed number into a improper fraction and then add by finding the least common denominator (LCD).
[tex]-\frac{3}{4} +2\frac{3}{4}[/tex]
Convert into improper fraction:
[tex]2\frac{3}{4} =4\times2=8+3=11[/tex]
[tex]-\frac{3}{4} +\frac{11}{4}[/tex]
Since how the denominators are the same you can just add numerators:
[tex]-3+11=8[/tex]
[tex]=\frac{8}{4}[/tex]
Reduce:
[tex]8\div4=2[/tex]
[tex]4\div4=1[/tex]
[tex]=\frac{2}{1}[/tex]
[tex]\frac{2}{1} =2[/tex]
Hope this helps.
a company makes two different-sized ice cream cones. The smaller cones are 3.5 inches tall and have a diameter of 3 inches. The larger cones are 5.1 inches tall and have a diameter of 4.5. inches. About how much greater, to the nearest tenth of a cubic inch, is the volume of the larger cone than the volume of the smaller cone?
9514 1404 393
Answer:
18.8 cubic inches
Step-by-step explanation:
The formula for the volume of a cone is useful:
V = 1/3πr²h
Where r is half the diameter, we can use r=d/2 to write this in terms of diameter:
V = 1/3π(d/2)²h = (π/12)d²h
For the given dimensions, the volumes are ...
large cone: v = (π/12)(4.5 in)²(5.1 in) ≈ 27.04 in³
small cone: v = (π/12)(3 in)²(3.5 in) ≈ 8.25 in³
Then the difference in volume is ...
(27.04 -8.25) in³ ≈ 18.8 in³
The larger cone has about 18.8 cubic inches more volume.
Solve for the distance between the points (0, -9) and (-4, 3).
A total of 356 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was three times the number of adult tickets sold. How many adult tickets were sold
Answer:
x + 3x = 356
4x = 356
x = 356/4 = 89.
answer: 89
Step-by-step explanation:
hopefully this helped :)
A person 6ft tall stands 10ft from point P directly beneath a lantern hanging 30 ft above the ground. The lantern start to fall, thus causing the person shadow to lengthen(L). Given that the lantern falls 16t2 feet in t seconds, how fast will the shadow be lengthening when t=1
Answer:
[tex]\frac{dL}{dt}=30 \frac{ft}{s}[/tex]
Step-by-step explanation:
In order to solve this it is always a good idea to start by drawing a diagram of the situation (See attached picture).
From the diagram we can see that we are dealing with similar triangles. We can use similar triangles to build an equation that relates the length of the shadow with the height of the lamp, so we get:
[tex]\frac{L}{6}=\frac{10+L}{h}[/tex]
the height of the lamp can be found by subtracting the [tex]16t^{2}[/tex] distance the lamp falls in a given time t from the original 30ft the lamp was located at.
So the equation will now lok like this:
[tex]\frac{L}{6}=\frac{10+L}{30-16t^{2}}[/tex]
So now we can solve the equation for L, we can start by multiplying by the LCD SO WE GET:
[tex]L(30-16t^{2})=6(10+L)[/tex]
next, we can distribute the right side of the equation so we get:
[tex]L(30-16t^{2})=60+6L[/tex]
and subtract 6L from both sides so we get:
[tex]L(30-16t^{2})-6L=60[/tex]
and factor L, so we get:
[tex]L(30-16t^{2}-6)=60[/tex]
and solve for L:
[tex]L=\frac{60}{24-16t^{2}}[/tex]
now, we can differentiate this equation by using the chain rule, so we get:
[tex]dL=-\frac{60}{(24-16t^{2})^{2}}(-32t)dt[/tex]
which can be simplified to:
[tex]\frac{dL}{dt}=\frac{1920t}{(24-16t^{2})^{2}}[/tex]
and now we can substitute t for 1s so we get:
[tex]\frac{dL}{dt}=\frac{1920(1)}{(24-16(1)^{2})^{2}}[/tex]
[tex]\frac{dL}{dt}=30 \frac{ft}{s}[/tex]
PLEASE HELP MEEE If there are 83 men and 17 women. What percentage of women are there
Answer: 17%
Step-by-step explanation: 83+17 = 100, 17/100 = 0.17 = 17%
PLEASEEEE HELP AND SHOW WORK WILL GIVE BRAINLIEST... LOVE Y'ALL!!! The time it takes to fly from Los Angeles to New York varies inversely as the speed of the plane. If the trip takes 5 hours at 950 km/h, how long would it take at 850 km/h?
Answer:
4 hour
Step-by-step explanation:
The time it takes to fly from Los Angeles to New York varies inversely as the speed of the plane i.e.
[tex]t\propto v^2[/tex]
Here, t₁ = 5 h, v₁ = 950 km/h, v₂ = 850 km/h, t₂=?
[tex]\dfrac{t_1}{t_2}=\dfrac{v_1^2}{v_2^2}\\\\t_2=\dfrac{t_1v_2^2}{v_1^2}\\\\t_2=\dfrac{5\times (850)^2}{(950)^2}\\\\t_2=4\ h[/tex]
If the speed is 850 km/h then the time is 4 h.
Anybody Know This. ? I Wanna Be Positive It’s C
Answer:.
Step-by-step explanation:
Answer:
The correct answer is A
Step-by-step explanation:
I think you are trying to find corresponding sides. In the answer that you think it is, it says BC = DF. Well, is you look triangle ABC you see that BC is at the bottom. However, this differs from triangle DEF because EF is the bottom line. So if you look at the answer A, you see that it has the correct corresponding sides. I hope that helps :))
You buy butter for $3 a pound.
One portion of onion compote requires 1.7 oz of butter.
How much does the butter for one portion cost? Round to the nearest cent.
There are 16 ounces in one pound.
Set up a proportion and solve for x.
3/x = 16/1.7
16x = 3(1.7)
16x = 5.1
x = 5.1 ÷ 16
x = 0.31875
Rounding to the nearest cent, we get 30 cents.
Answer each part. If necessary, round your answers to the nearest hundredth.
(a) Joe bought 13 pounds of rice for $7. How many pounds of rice did he get per dollar? pounds per dollar
(b) At Smith's Bike Rentals, it costs $29 to rent a bike for 6 hours. How many hours of bike use does a customer get per dollar? hours per dollar
Step-by-step explanation:
a) 13=$7
x=$1
(do cross multiplication)
13=7x
x=1.86 pounds
Which relationship is always true for the angles x, y, and z of triangle ABC?
a
x + z = y
b
y + z = x
c
x + y + z = 180 degrees
d
x + y + z = 90 degrees
estimate the different by rounding each number to the nearest tenth : 0.68-0.17
Answer:
0.5
Step-by-step explanation:
0.68 - 0.17
0.68 ≈ 0.7
0.17 ≈ 0.2
0.7 - 0.2 = 0.5
What is the product?
2 x [-1/0]
Answer:
=38
Step-by-step explanation:
Answer:
It's C [-2 0]
Step-by-step explanation:
If you multiply the product [-1 0] both by 2 you get [-2 0]
Solve the equation. 3x + 2(4x − 6) = 8x + 1 What is the value for x? x =
Answer: x= 13/3
Step-by-step explanation: solve x
by simplifying both sides of the equation, then isolating the variable.
Answer:
[tex]x=\frac{13}{3}[/tex]
Step-by-step explanation:
The explanation on how to solve it is from the attached picture.
Hope this helps! :)
ELP ME PLEASE WILL GIVE BRAINLIEST IF QUICK
Answer:
x = 24
y = 10
z = 17
Step-by-step explanation:
4z - 32 = 36
4z = 68
z = 17
6x - 29 = 115
6x = 144
x = 24
36 + 115 = 151
180 - 151 = 29
3y - 1 = 29
3y = 30
y = 10
Jane is a computer science major planning to take 4 courses next semester. She is planning to take 2 computer science courses and 2 courses from other areas. How many different schedules can she build?
Answer: 24 schedules.
Step-by-step explanation:
Given data:
Courses planning to take = 4
Computer courses = 2
Courses from other areas = 2
Solution:
This problem can be solved using permutation.
For Computer science courses.
npr = n! / ( n - r )!
Where n = 4
r = 2
4p2 = 4!/( 4-2)!
= 4!/2!
= 12
For other courses.
Where n = 4
r = 2
4p2 = 4!/( 4-2)!
= 4!/2!
= 12
Jane can have a total of 24 different schedules.
Pls help me figure out the slope
Answer:
[tex]m=\frac{-4}{5}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (-3, 1)
Point (2, -3)
Step 2: Find slope m
Substitute: [tex]m=\frac{-3-1}{2+3}[/tex]Subtract/Add: [tex]m=\frac{-4}{5}[/tex]You and your four friends have $25 to spend on snacks. A medium size popcorn costs $2.50 and a medium soft drink costs $1.50. Write and graph an inequality that represents the numbers of medium boxes of popcorn and medium soft drinks you can buy.
Answer:
Step-by-step explanation:
Step one:
given
Total money at hand=$25
cost of one popcorn=n $2.5
cost of drink= $1.5
total number of friends plus you= 4+1= 5
let the total amount spent be y
y= 5(2.5)+5(1.5)
y=12.5+7.5
y=20
The above shows that $20 is enough to cover the expenses, and there will be a balance of $5
Karen earns $5 by delivering newspapers each week. She saves $3 and she spends the rest. How many weeks will it take her to save enough money to buy a $35 gift card?
Answer:
give me 1hour
Step-by-step explanation:
In RST, R = 23* and S = 136*. Which list has the sides of RST in order from shortest to longest?
RS, TR, ST
TR, ST, RS
ST, RS, TR
ST, TR, RS
TR, RS, ST
RS, ST, TR
Answer:
RS, ST, TRStep-by-step explanation:
The third angle measures:
T = 180° - (136° + 23°) = 21°Angles and opposite sides are:
S = 136° → TRR = 23° → STT = 21° → RSThe greater the angle, the greater the opposite side, therefore the sides in increasing order will be:
RS, ST, TRIf 7 toothpaste tubes cost 40.50 how much does one tube cost?
Answer:5.78
Step-by-step explanation: It is 5.78 bc do 40.50 divided by 7 and you will get your answer
Brainliest please???
Answer:
Each tube costs about $5.79.
Step-by-step explanation:
To find the cost of each tube, divide the total cost by the total number of toothpaste tubes.
40.50/7 = 5.785714286 which approximates to 5.79