Politics Post has published a total of 15 articles this month. If 12 of the articles are about candidates for an upcoming election, what percent of the articles are about candidates?
Answers
Answer:
80%
Step-by-step explanation:
12÷15= .8
.8=80%
..............
Related Questions
Convert the equation f(t) = 227e b= -0.09€ to the form f(t) = ab* Give answers accurate to three decimal places
Answers
= 173.903t
Step-by-step Explanation:
The given equation is: f(t) = 227e^(b*t)
To convert it to the form f(t) = ab, we need to write it in the form of f(t) = a * e^(k*t), where a and k are constants.
Let's start by taking the natural logarithm (ln) of both sides:
ln(f(t)) = ln(227e^(b*t))
Using the properties of logarithms, we can simplify this to:
ln(f(t)) = ln(227) + ln(e^(b*t))
ln(f(t)) = ln(227) + b*t
Now, let's define a new constant, k = b, and rewrite the equation in terms of a and k:
ln(f(t)) = ln(a) + k*t
where a = 227 and k = -0.09
Taking the exponential of both sides, we get:
f(t) = e^(ln(a) + k*t)
f(t) = e^(ln(a)) * e^(k*t)
f(t) = a * e^(k*t)
Substituting the values of a and k, we get:
f(t) = 227 * e^(-0.09*t)
Therefore, the equation f(t) = ab is:
f(t) = 227e^(-0.09t) ≈ 173.903t (rounded to three decimal places)
If the Volume of a rectangular prism is 720 what is the width
Height 8 cm
Length 10cm
width???
Answers
Answer:
The width of the rectangular prism is 9 cm.
Step-by-step explanation:
From the formula of the volume of a bar \(V=whl\) we see that \(w=\frac{V}{hl}=\frac{720}{8\cdot 10} = 9\) cm.
What number must you add to the polynomial below to complete the square?2-26xAnswer hereSUBMIT
Answers
To complete the square we must have the form:
\(x^2+2bx+b^2\)In this case b= -13, then we have to add
\((-13)^2=169\)to complete the square.
4х + 1 cm
3х – 2 cm
Simplified
Answers
Answer:
x= -3
Step-by-step explanation:
4x+1=3x-2
4x-3x=-2-1
x={-3}
help me plzzz its too hard
Answers
- 5.3
______
17.97
This is about scatter plots and association i just need number 1
Answers
The form of association that would be found in the variables would be:
Positive association No association Negative association How to find the association ?As the number of hours spent playing a video game increases, the player is likely to reach higher levels within the game. So positive association.
The number of letters in a person's name and the last digit of their phone number are likely to be unrelated and randomly distributed. There is no association.
As the temperature of the drink decreases, the number of ice cubes in the drink is likely to increase, and vice versa. This is therefore negative association.
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To a motorist travelling due North at 50km/hr, the wind appears to come from North West at 60mk/hr. Find the true velocity of the wind.
Answers
Answer:43.1 km/h
Step-by-step explanation:
Suppose velocity of motorist \(\vec{v_1}=50\hat{j}\)
The appeared velocity of wind or resultant velocity is \(\vec{v_r}=60[\hat{i}\cdot \frac{1}{\sqrt{2}}+\hat{j}\cdot \frac{1}{\sqrt{2}}]\)
Suppose the true velocity of wind is \(v_2\)
so, \(\vec{v_1}+\vec{v_2}=\vec{v_r}\)
\(\vec{v_2}=\frac{60}{\sqrt{2}}\hat{i}+(\frac{60}{\sqrt{2}}-50)\hat{j}\\\vec{v_2}=42.42\hat{i}-7.57\hat{j}\\absolute\ velocity=\sqrt{42.42^2+(-7.57)2}=43.09\approx 43.1\ km/h\)
Based on the information in the table, what
was the approximate value of this item in
1980?
Answers
Answer:
B) 4,700
Step-by-step explanation:
6000 - 4000 = 2000
2000 in 15 year, find how much for each year
2000/ 15 = 133.3333333
133.3333333 estimated = 133
133 approximately for each year
1975 to 1980 is five years
133 x 5 = 665
4000 + 665 = 4665
4665 rounded the the nearest hundred
4700
2
if x + 7 x = 9 then x =
Answers
Answer:
x = 1.12
Step-by-step explanation:
1.2 + 7 x 1.12 = 9.04
May I have brainliest please? :)
Answer:
x=9/8
Step-by-step explanation:
1. Combine like terms.
x+7x=9 ----> 8x=9
2. Divide both sides of the equation by the same term
8x=9 -----> 8x/8 = 9/8
3. Simplify
x = 9/8 or 1.125
Which function, g or h, is the inverse function for function f? CHECK PHOTO
Answers
Answer: The function g because the graphs of f and g are symmetrical about the line y=x.
Answer:
A. The function g because the graphs of f and g are symmetrical about the line y=x.
Step-by-step explanation:
If we set α=0.01, what is the probability that we reject the null hypothesis when it was in fact true?
The probability is  _____
Answers
The probability by the given data is 1%.
We are given that;
set α=0.01
Now,
The probability of making a type I error is the significance level, or alpha (α), which is the threshold we set for rejecting the null hypothesis124. It is also known as the false positive rate3.
If we set α=0.01, it means that we are willing to accept a 1% chance of making a type I error. Hence, the probability that we reject the null hypothesis when it was in fact true is 0.01 or 1%.
Therefore, by probability the answer will be 1%.
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To add 20.4 + 3.75 + 4.25, Crystal first added 3.75 and 4.25. Which property did Crystal use to add mentally?
A. Associative Property of Addition
B. Commutative Property of Addition
C. Distributive Property
D. Identity Property of Addition
Answers
Answer:
A) Associative Property of Addition
Step-by-step explanation:
Associative Property of Addition
Let A, B and C be any three real numbers
A+(B+C) = (A+B) + C
Given data
(20.4 + 3.75) + 4.25 = 20.4 + (3.75 + 4.25)
= 20.4 + 8.0
= 28.4
a) For what value(s) of k is the following SoLE inconsistent?
x - 2y + 4z = 3
4x + 5y + kz = 9
y + 3z = 2
Answers
Answer: z = 55.
Step-by-step explanation:
we want to find values of k that make this inconsistent.
x - 2y + 4z = 3
4x + 5y + kz = 9
y + 3z = 2
First, can you can see that k never can make some of the equations linearly dependent because of how constructed is the set. Now, let's see if there are values of k that give problems to our system.
To see it, let's solve the system.
from the third equation we can write y = 2 - 3z, and we can replace it into the first two equations:
x - 2(2 - 3z) + 4z = 3
4x + 5(2 - 3z) + kz = 9
simplify both equations and get
x + 10z = 7
4x + ( k - 15)*z = - 1
from the first equation, we have that:
x = 7 - 10z
we can replace it into the other equation:
4*(7 - 10z) + (k - 15)*z = -1
28 - 40z + (k -15)*z = -1
(k - 55)*z = -29
z = -29/(k - 55)
here you can see that the only value of z that has problems is z = 55, because we never can have a 0 in the denominator.
The equation m=3b represents the times in minutes (m) it takes a chef to cook a certain number of bacon cheeseburgers (b) A: 3 B: 6 C:1/3 D: 1
Answers
For the given equation:
m = 3b
The constant of proportionality is 3, so the correct option is A.
How to determine the constant of proportionality?
After a small search on the internet, I've found that this question asks for the constant of proportionality.
Remember that a proportional relation is of the form:
y = k*x
Where k is the constant of proportionality, and x and y are the variables.
Here the relation is:
m = 3*b
Where m and b are the variables, then the remaining coefficient is the constant of proportionality, which is 3.
In this way, we can see that the correct option is A.
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Part B
Line m has a slope of -3. Another line n is parallel to line m. What is the slope of line n?
Slope of linen is
Answers
Answer:
Step-by-step explanation:
the slope of line n is also -3 as it is parallel to m
The answer is A
DEEPER The scales shown are used to compare the weights of apples, tangerines, grapefruits, and bananas. How many tangerines
will balance one apple?
Justify your answer using a linear system. Let the weights of apples, tangerines, grapefruits, and bananas be represented by a, t,
g, and b respectively.
Equation for first picture:
Equation for second picture:
Equation for third picture:
Answers
Using a system of equations, it is found that 4 tangerines will balance one apple.
The equations are given as follows:
First balance: a + t = g.Second balance: b + t = a.Third balance: 2g = 3b.What is a system of equations?A system of equations is when multiple variables are related, and equations are built to find the numeric values of each variable, according to the relations built in the problem.
For this problem, the variables are given as follows, considering the situation described:
Variable a: weight of an apple.Variable t: weight of a tangerine.Variable g: weight of an grapefruit.Variable b: weight of an banana.For the first picture, one apple and one tangerine balance one grapefruit, hence:
a + t = g.
For the second picture, one banana and one tangerine balance one apple, hence:
b + t = a.
For the third picture, two grapefruits balance three bananas, hence:
2g = 3b.
g = 1.5b.
Replacing on the first equation, we have that:
a + t = 1.5b.
From the second equation, we have that:
b = a - t.
Hence, replacing on the first:
a + t = 1.5(a - t)
1.5a - 1.5t = a + t
0.5a = 2t
a = 4t
Hence 4 tangerines will balance one apple.
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You are preparing to buy a house. Your monthly gross income is $3,200. a. What is the maximum amount you can finance (mortgage)? (4 points)
Answers
The maximum amount you can finance is $896.
We are given that;
The monthly gross income = $3,200
Now,
28% of your gross monthly income on your mortgage, including taxes and insurance
The percentage = 28%
3200* 28/100
=32*28
=896
Therefore, by percentage the answer will be $896.
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In Ms. Block's class 8 students share a box of cherries equally. Each of them receives 9 cherries. There are
then 6 cherries left over. How many cherries were there altogether in the box?
Answers
Answer: 78
Step-by-step explanation:
first, you multiply 8 by 9 then you get 72, and then you can add the leftover cherries with 72 so 72 + 6 = 78
Answer:
Step-by-step explanation:
78
PLEASE HELP ASAP!!!
I'd really appreciate the help, thanks in advance.
The questions below can be solved using the relation between angular size, physical size and distance. For the questions below, provide a complete solution with explanation.
1. Find the Sun's diameter. The sun has an angular diameter of about 0.5° and an average distance from the Earth of about 150 million km. What is the sun's approximate physical diameter? Compare your answer to the actual value of 1 390 000 km.
2. Find a Star's Diameter. The supergiant star Betelgeuse (in the constellation Orion) has a measured angular diameter of 0.040 arcsecond from Earth and a distance from Earth of 720 light-years. What is the actual diameter of Betelgeuse? Compare your answer to the size of our Sun and the Earth-Sun distance.
Answers
The physical diameter of the sun will be 1309000km and the percentage of difference between the diameters will be 5.8%.
How to calculate the diameter?From the information, the sun has an angular diameter of about 0.5° and an average distance from the Earth of about 150 million km. The angular diameter in radians will be:
= 0.5π / 180
= 0.008727 radians
Distance from the sun = 150 × 10^6
The physical diameter of the sun will be:
= 150 × 10^6 × 0.008727
= 1309000km
The difference between the diameters will be:
= 1390000 - 1309000
= 8.1 × 10^4.
The percentage of difference will be:
= (8.1 * 10^4) / 1390000 × 100
= 5.8%
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11 There are 20 marbles in a bag. 0/1 . 4 marbles are green. • 7 marbles are red. 5 marbles are white. • 4 marbles are purple. Based on this information, what is the probability a marble choosen will be green or purple? Show Your Work y Green y Purple u 8 8 20 5 4 니 + 20 marbles You have responded to 11 of 11 questions 1 response does not have any content.
Answers
Answer:
1 There are 20 marbles in a bag. 0/1 . 4 marbles are green. • 7 marbles are red. 5 marbles are white. • 4 marbles are purple. Based on this information, what is the probability a marble choosen will be green or purple? Show Your Work y Green y Purple u 8 8 20 5 4 니 + 20 marbles You have responded to 11 of 11 questions 1 response does not have any content.
Step-by-step explanation:
Carry claimed that the expression -5+m is negative. Determine whether Carry’s claim is always true, sometimes true, or never true. Provide evidence to support your conclusion
Answers
Answer:
Sometimes True
Explanation:
Carry claimed that the expression -5+m is negative.
To determine the truthfulness of the claim, we examine three possible scenarios.
Case 1: When m<5 (say 4)
\(-5+m=-5+4=-1\text{ (Negative)}\)Case 2: When m>5 (say 6)
\(-5+m=-5+6=1\text{ (Positive)}\)Case 3: When m=5
\(-5+m=-5+5=0\)We observe that the expression is negative whenever m is less than 5.
Therefore, we conclude that Carry's claim is sometimes true.
HELP PLEASE DUE IN 3 MINUTES
Answers
Answer:
the last answer... i hope this helps
Step-by-step explanation:
Answer:
Twice as many students had 3 brothers or sisters as students who had 1 brother or sister
Step-by-step explanation:
Im certain. Pls mark brainliest
32 = 25t ^ 2 - 4 round to the nearest tenth
Answers
Answer:
t = 1.2, -1.2
32 + 4 = 25t^2
36 = 25t^2
Root of 36 = root of 25t
6 = 5t
6/5 = t
Therefore t = +-1/2 or +-6/5
(Solving for a). b=(4*a)-3/4
Answers
Answer:
a = 3/28
Step-by-step explanation:
To start solving for a variable, you need to isolate it.
-4/3b = 4a
-4/3 divided by 4 equals -4/12 or -1/3
a = -1/3b
To completely solve for a we need to plug it back in and solve for b.
b = (4(-1/3b)) - 3/4
b = -4/3b - 3/4
7/3b = -3/4
b = -9/28
Finally, we can plug b back in to the previous equation we got for a to solve for a.
a = -1/3(-9/28)
a = 3/28
Furthermore, we can check if this is correct by plugging in 3/28 for a into the original problem and see if we get what we got for b (-9/28)
The half-life of Polonium-210 is 140 days. If 45 grams are present now, how much will be
present after 1 year?
Answers
The amount of Polonium-120 present after 1 year is 7.36 grams.
Half-life:This is the time taken for half the sample of a radioactive material to decay.
To calculate the amount of Polonium-120 present after 1 year, we use the formula below.
Formula:
R' = R/(\(2^{a/n} \))................ Equation 1Where:
R = Amount of Polonium-120 present nowR' = Amount of Polonium-120 present after 1 yeara = Total timen = Half-lifeFrom the question,
Given:
R = 45 gramsa = 1 year = 365 daysn = 40 days.Substitute these values into equation 1
R' = 45/(2³⁶⁵/¹⁴⁰)R' = 45/6.11R' = 7.36 grams.Hence, The amount of Polonium-120 present after 1 year is 7.36 grams
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Annabelle is going to a carnival that has games and rides. Each game costs $1.75 and each ride costs $3.50. Annabelle spent $28 altogether at the carnival and the number of games she played is 7 more than the number of rides she went on. Graphically solve a system of equations in order to determine the number of games Annabelle played, x,x, and the number of rides Annabelle went on, yy.
Answers
Answer:
$15.75
Step-by-step explanation:
1.75 x 7 = 12.25
28 - 12.25 = 15.75
Add dollar sign. Final answer is $15.75
Answer:
y=-1/2x+8
y=x-7
(10,3)
10 games played and 3 rides
Step-by-step explanation:
Improper fraction that equals 2 5/8
Answers
Answer:
21/8
Step-by-step explanation:
you multiply 8 and 2 then get 16 then you add 5 and get 21 keep you demoninator as 8 tho
A bicycle is on sale for 20% off The bicycle regularly costs $129.95 what is the sale price
Answers
Answer:$103.96
Step-by-step explanation: $129.95*0.2= $25.99
129.95-$25.99=$103.96
Answer:
Step-by-step explanation:
Xian is planning a party at the skating rink. The cost for each person attending is $3. 50 for skate rental and $5. 00 for food. Xian cannot spend more than $300. Which inequality could be used to find the greatest number of people, p, that can attend?.
Answers
The inequality could be used to find the greatest number of people, p, that can attend is 3.5p + 5p ≤ 300.
Here the inequality is that the sum of the cost of rentals and food which is represented by 3.5p and 5p, respectively, must be less than or equal to $300. By solving the inequality we can determine the maximum number of people that can attend the party while staying within Xian's budget.
To solve the inequality, we first subtract 5p from both sides to isolate the 3.5p term. This results in 3.5p≤300-5p. Then we divide both sides by 3.5 to isolate p, which yields p≤85.71. Since we can't have a fractional number of people, we can determine the maximum number of 85 people that can attend the party.
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How do I find the sin x
