Answers
Answer:
2nd one
Step-by-step explanation:
Related Questions
Which relation is a function?
Select all that apply.
{(1,4), (2,4), (3, 4), (4,4)}
{(3,1), (−3,1), (4, 3), (−4,3)}
{(3,1), (3,3), (3, 2), (2,3)}
{(3,1), (3,2), (3, 3), (3,4)}
{(3,3), (−2,−2), (0, 0), (−4,4)}
Answers
Answer:
1. yes
2. yes
3. no
4. no
5. yes
Step-by-step explanation:
Answer:
the first one
Step-by-step explanation:
Suppose the radius of the cylinder is decreasing at a rate of 2 cm/sec, but the volume is constant. How fast is the height changing when the radius is 10 cm and the height is 35 cm? Include units with your answer. Hint: If the volume is constant, what do you know about the rate of change of the volume?
Answers
According to the question,
r = 10 cmh = 35 cm[tex]\frac{dr}{dt} = -2 \ cm/s[/tex]As we know the formula,
[tex]V = \pi r^2 h[/tex]then,
→ [tex]\frac{dv}{dt} = \pi [2r\frac{dr}{dt} h+ r^2 \frac{dh}{dt} ][/tex]
→ [tex]0 = \pi [2 \pi h\frac{dr}{dt} + r^2 \frac{dh}{dt} ][/tex]
By substituting the given values,
→ [tex]0 = 2\times 10\times 35\times (-2)+(10)^2\times \frac{dh}{dt}[/tex]
[tex]\frac{dh}{dt} = \frac{2\times 10\times 35\times 2}{10\times 10}[/tex]
[tex]\frac{dh}{dt} = \frac{140}{10}[/tex]
[tex]\frac{dh}{dt} = 4 \ cm/s[/tex]
Thus the answer above is right.
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six friends share a 15 once bag of nuts equally between witch too whole numbers will each get
Answers
Answer:
if you divide 15 by 6 you should get 2.5 as your answer
Answer:
between 2 and 3
Step-by-step explanation:
15/6=2.5
2<2.5<3
those are the two whole numbers closest to 2.5
Divide. Write the quotient in lowest terms.
1
Col
What is 1/4 divided by 1 1/8
Answers
Answer:
2/9 or 0.222.
Step-by-step explanation:
convert 6¼ % into decimal
Answers
Answer:
6.75
Step-by-step explanation:
Answer:
Step-by-step explanation:
6.25 percent would be 0.0625
You are to take a multiple-choice exam consisting of 100 questions with 2 possible responses to each question. Let x represent the number of correct responses on the test. A) What is your expected score on the exam?B) Compute the variance and standard deviation of x.
Answers
Answer:
50 ;
25 ;
5
Step-by-step explanation:
Given that:
Number of multiple choice questions = 100
Number of possible responses = 2
Hence, probability of success, p = 1/2 = 0.5
Using normal approximation :
The expected score = mean = n*p
Expected score (X) = 100 * 0.5 = 50
standard deviation = std(X) = √
Var(X) = n*p*q
q = 1 - p = 1 - 0.5 = 0.5
Variance = Var(X) = (100 * 0.5 * 0.5)
Var(X) = 25
Var(X) = 25
The Standard deviation (Std) = √Var(X)
Std(X) = √25
Std(X) = 5
A card is drawn from a well-shuffled deck of 52 cards. Find the probability that the card is a red card or a 6?
Answers
Answer:
50% chance of it being red; a 13% chance of it being 6.
Step-by-step explanation:
50% because half the deck is red or black
13% because only 4 cards a 6 so 52÷4=13
What is the least common multiple (LCM) of 3 and 5?
O 30
O 2
O 15
O 8
pls help
Answers
Answer:
15
Step-by-step explanation:
magical it is 15 because it is what it is
I need help with this
Answers
Answdf-ipuofnvpaosnpvpsivdi
the asnwer is b
Step-by-step explanation:
wef iweufhnwefhewihwnfvbrgfnhpfbovnv urfghv nvmv
Helppppppppppppppp...
Answers
Answer:
180 degrees
Step-by-step explanation:
Answer:
It’s 180 degrees I think
Step-by-step explanation:
You have discovered another alien. Find the correct rescue path before answering this question. Which statements are true about the equation of the line used to save this alien? The y-intercept is not visible on the graph. The slope does not exist for this line. The y-intercept is positive. The line crosses the x-axis at –3.
Answers
The correct answers are option A and option D.
What is a slope?In mathematics, a line's slope, also known as its gradient, is a numerical representation of the line's steepness and direction
From the given graph it is clear that the spaceship is located at (-4,3). The alien is at (-2, -3).
If a line passes through two points (x₁ ,y₁) and (x₂, y₂) ,
then the equation of line is
y - y₁ = (y₂- y₁) / (x₂ - x₁) x (x - x₁)
y - 3 = (-3 -3 ) / (-2 + 4) x (x + 4)
y - 3 = -3x -12
y = -3x -9
The equation of the line is;
y = -3x -9 {equation 1}
Slope intercept form of a line is
y = mx + b {equation 2} ,
where m is the slope and b is the y-intercept.
On comparing the equation (1) and (2) we get
It means,
Slope = -3
y-intercept = -9
Points from -6 to 6 are labeled on y-axis. The y-intercept is -9, so it is not visible on the graph.
Option A is correct.
Substitute y=0 in equation (1) to find the x-intercept.
Divide both sides by 3.
x-intercept is -3. It means the line crosses the x-axis at -3.
Option D is correct
Therefore, the correct options are A and D.
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Please help me I’m so sad I don’t know nothing and I just HELPP me
Answers
Answer:
Step-by-step explanation:
42k³ + 28k² - 63k
Answers must be in standard form:
(K+4)(3k+2)
Answers
Answer:
3kK+2K+12k+8
Step-by-step explanation:
Answer:
k3-k4
Step-by-step explanation:
Need it ASAP will give brainliest
Answers
Answer:
Step-by-step explanation:
Option A is the correct answer
256 x 343 / 7 x 64
87808 / 448
= 196 = 14^2
Answer:
Option A is the correct answer
Step-by-step explanation:
256 x 343 / 7 x 64
87808 / 448
= 196 = 14^2
Jacinta buys 4 pounds of turkey and 2 pounds of ham. She pays a total of $30, and the turkey costs $1.50 less per pound than the ham. What would be the combined cost of 1 pound of turkey and 1 pound of ham?
A. $7.50 B. $9.50
C. $10.50 D. $15.00
Answers
Answer:
Step-by-step explanation:
The correct answer would be C $10.50 have a good day.
Johannes needs to buy replacement team uniforms and is looking at different prices he has a budget of 300 he needs 18 pairs of plants and 12 shirts let x represent
Answers
Answer:
12 Shirts would be $275.
18 Pairs of Pants would be about $284 and some change.
Therefore, he would not be able to purchase the amount of shoes AND shirts that he needs for the team uniforms.
Step-by-step explanation:
One number is 4 more than the other. The difference between their squares is 72. What are the numbers
Answers
someone please help me idk what to doooo
Answers
Answer:
65°
Step-by-step explanation:
ΔCAT ≅ ΔJSD
m∠C = m∠J
3x + 2 = 5x - 40
2x = 42
x = 21
m∠ACT = 3 × 21 + 2 = 65°
12x-20y=180 slope-intercept form
Answers
Answer:
y=3/5x-9
this is what im learning as well
Regular: 12x-20y=180
In slope-int form: y = 3/5x - 9
that should be your answer.Sophia is signing up for a gym membership with a one-time fee to join and then a monthly fee to remain a member. The one-time fee to join the gym is $100 and the total cost of membership, including the joining fee, would be $300 for 5 months. Write an equation for C,C, in terms of t,t, representing the total cost of the gym membership over tt months.
Answers
Answer:
40t+100
Step-by-step explanation:
The equation that represents the total cost of the gym membership over t months is C = 40t + 100.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
It is given that:
Sophia is signing up for a gym membership with a one-time fee to join and then a monthly fee to remain a member.
The one-time fee to join the gym is $100 and the total cost of membership, including the joining fee, would be $300 for 5 months
Based on the data given in the question:
The linear equation can be framed as follows:
C = 40t + 100
Here C represents the total cost of the gym membership over t months.
Thus, the equation that represents the total cost of the gym membership over t months is C = 40t + 100.
Learn more about the linear equation here:
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Select all of the expressions that are equal to the product of 10x9 and (60x–6)–1. Assume X ≠ 0.
Answers
Answer: a and c
Step-by-step explanation:
Answer:
A and C for edge
Step-by-step explanation:
Got it right :)
Please help with this. THank you
Answers
Answer:
8 ones quotient
0 one remaining
Step-by-step explanation:
there is no remaining
Quotient is 8
Reminder is 0
A customer buys 5 books at a bookstore for a total cost of $65. If all the books cost the same amount, how much does 1 book cost?
Answers
Answer:
13
Step-by-step explanation:
Cost of 5 books = $65
So, cost of 1 book = $65 ÷ 5
= $13
The cost of one book is $13.
What is unit rate?A unit rate means a rate for one of something.
Given that, A customer buys 5 books at a bookshop for a total cost of $65.
Cost of 5 books = $65
So, cost of 1 book = $65 ÷ 5
= $13
Hence, The cost of one book is $13.
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State if the two triangles are congruent. If they are, state the triangle congruence theorem that proves it
Answers
Answer:
Not congruent
Step-by-step explanation:
The sides that are equal in length are not in the same place if you align the triangles.
I need help anyone know what this is?
Answers
Answer:
∠[tex]ACD=60[/tex]° or B
Step-by-step explanation:
[tex]110+120+70= 300[/tex]
[tex]360-300=60[/tex]
Answer:
B 60
Step-by-step explanation:
Do not let all the extra triangles on the outside trip you out. The shape is a trapezoid which total should equal 360. Add all the angles up and subtract from 360 to get 60
Hope this Helps :)
Selina wants to buy a dress that sells for $55 if the sales tax is 8% exactly how much will the dress cost
Answers
Answer:
59.40$
Step-by-step explanation:
4.4 $ is tax
55$ is cost
totals is 59.4$
HOPE THIS HELPS
PLZZ MARK BRAINLIEST
please help me asap
Answers
Keiko, Abdul, and Bob have a total of $82 in their wallets. Keiko has $7 more than Abdul. Bob has 3 times what Abdul has. How much does each have?
Answers
Answer:
abdul has 15
keiko has 22
bob has 45
Step-by-step explanation:
82= a+7+3a+a
75=a+3a+a
75=5a
15=a
15=abdul
15+7=keiko
3(15)=bob
The table shows the lengths of four trails at a horseback riding camp. The estimated length of all four trails is 12 miles. Find a possible length for trail D. Show your work.
Answers
Answer:
Step-by-step explanation:
2.6 plus 1.8 plus 4.2 is 8.6. subtract this from 12 to get your answer of 3.4
If the estimated length of all four trails is 12 miles the possible length for trail D will be 3.4 miles.
What is an arithmetic operation?It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that are +, -, ×, and ÷.
Terms are similar, and we can perform arithmetic operations on them like addition and subtraction.
It is obtained from the table that the length of trails A, B, and C will be 2.6, 1.8, and 4.2 miles.
It is given that the estimated length of all four trails is 12 miles the length of Trail D is obtained by adding all the given lengths of the trails and subtracting it from the total length.
= 2.6 + 1.8, + 4.2 miles.
= 8.6 miles
The length of trail D is,
= 12 miles - 8.6 miles
= 3.4 miles.
Thus, if the estimated length of all four trails is 12 miles the possible length for trail D will be 3.4 miles.
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A map has a scale of 2 inches = 50 miles. If the
distance between two cities on the map is 7 inches,
what is the actual distance between the cities?
Answers
Answer:
175 miles apart.
Step-by-step explanation:
This is because 2 goes into seven 3 times and half of 50 is 25 so for 1 inch it would be 25 miles. 50+50+50+25=175 miles.