Answer:
78.54
Step-by-step explanation:
Answer:
78.54
That is the definite answer
m.
x-intercept =
1/2
and y-intercept = 3
Write an equation for the line in point-slope form and in slope-intercept form
Answer:
slope intercept form: y= -6x+3
point slope form: y-0= -6(x -1/2)
Step-by-step explanation:
point slope form: y - y1 = m(x - x1)
substitute the values y-0=-6(x-1/2)
slope intercept form:
find the slope using two given points
m = (y2 - y1) / (x2 - x1)
= (3 - 0) / (0 - 1/2)
= 3 / (-1/2)
= -6
substitute into equation
y= -6x+3
What is the slope of (-1,2) and (0,-4)
Answer:
- 6
Step-by-step explanation:
\(slope = \frac{ - 4 - 2}{0 - ( - 1)} = \frac{ - 6}{0 + 1} = \frac{ - 6}{ 1} = - 6 \\ \)
Which of the following ratios are equivalent to 124:20? plsss anwer right asap plss im wasted all my points !!!!!!!!!!!!:(
Answer:
It is 31:5
Step-by-step explanation:
Hope this helped have an amazing day!
Jody buys 20 yards of fencing to build a garden. The garden will have 5 sides. What is the area of the largest garden she can build?
The 5-sided figure with the largest area for a given perimeter is a *blank* pentagon. Since Jody has 20 yards of fencing, the sides of the figure must measure *blank*
The area of the garden will be
approximately *blank*
square yards.
Answer:
27.5 square yards
Step-by-step explanation:
the Pentagon is a regular Pentagon since it has equal sides. each side will be 4 yards. the area of the Pentagon is 0.5 x perimeter x apothem.
perimeter is 5 sides x 4 yards = 20 yards
apothem = 2/tan(36deg) = 2.75 yards
area = 27.5 yards
Answer:
Regular
4 yards, 4 yards, 4 yards, 4 yards, 4 yards
28
Suppose 232subjects are treated with a drug that is used to treat pain and 50of them developed nausea. Use a 0.01significance level to test the claim that more than 20%of users develop nausea. Identify the null and alternative hypotheses for this test.
A. Upper H0?: p equals 0.20
Upper H1?: p not equals 0.20
B. Upper H0?: p equals 0.20
Upper H1?: p greater than 0.20
C. Upper H0?: p greater than 0.20
Upper H1?: p equals 0.20
D. Upper H0?: p equals 0.20
Upper H1?: p less than 0.20
Identify the test statistic for this hypothesis test. Identify the P-value for this hypothesis test.
Identify the conclusion for this hypothesis test.
A. Reject Upper H 0. There is sufficient evidence to warrant support of the claim that more than 20?% of users develop nausea.
B. Fail to reject Upper H 0. There is sufficient evidence to warrant support of the claim that more than 20?% of users develop nausea.
C. Reject Upper H 0. There is not sufficient evidence to warrant support of the claim that more than 20?% of users develop nausea.
D. Fail to reject Upper H 0. There is not sufficient evidence to warrant support of the claim that more than 20?% of users develop nausea.
Answer:
A
The correct option is B
B
\(t = 0.6093\)
C
\(p-value = 0.27116\)
D
The correct option is D
Step-by-step explanation:
From the question we are told that
The sample size is \(n = 232\)
The number that developed nausea is X = 50
The population proportion is p = 0.20
The null hypothesis is \(H_o : p = 0.20\)
The alternative hypothesis is \(H_a : p > 0.20\)
Generally the sample proportion is mathematically represented as
\(\r p = \frac{50}{232}\)
\(\r p = 0.216\)
Generally the test statistics is mathematically represented as
=> \(t = \frac{\r p - p }{ \sqrt{ \frac{p(1- p )}{n} } }\)
=> \(t = \frac{ 0.216 - 0.20 }{ \sqrt{ \frac{ 0.20 (1- 0.20 )}{ 232} } }\)
=> \(t = 0.6093\)
The p-value obtained from the z-table is
\(p-value = P(Z > 0.6093) = 0.27116\)
Given that the \(p-value > \alpha\) then we fail to reject the null hypothesis
please answer all 3 questions
1. The equation of the form y = a • bˣ is y = 81 x (¹/₃)ˣ
2. His stamp should be worth approximately $7,851.47 after 6 years.
3. The equation of the form y = a • bˣ is y = (¹/₁₆) x 2²ˣ ⁺ ⁵
How did we get our values?1. One will see that y is decreasing by a factor of 3 as x increases by 1. Therefore, we can write the equation as:
y = 81 x (¹/₃)ˣ
2. The increase in value of the stamp can be calculated using the formula:
V = P(1+r)ᵗ
where V is the future value, P is the present value, r is the annual interest rate as a decimal, and t is the number of years.
Substituting the given values:
V = 4900(1+0.075)⁶
V ≈ $7,851.47
Therefore, the stamp should be worth approximately $7,851.47 after 6 years.
3. One will see that y is increasing by a factor of 2 as x increases by 1. Therefore, we can write the equation as:
y = (1/16) x 2²ˣ ⁺ ⁵
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What times 1/4 = 4/3
Answer:
answer is 16/3
Step-by-step explanation:
let the number be x
1/4*x=4/3
x=4/3*4/1
x=16/3
now checking the answer .In place of x put 16/3
1/4*16/3
16/12
4/3
hence 16/3 times 1/4 is 4/3
DESPERATE PLZ HELP NOW
find a slope of the two numbers (-4,-5) (2,10)
Answer:
The slope is 2.5
Step-by-step explanation:
y = 2.5x + 5 or
y = 5/2x + 5
When x=0, y = 5
When y=0, x = -2
Answer:
slope = 5/2
\(y = \frac{5}{2}x + 5\)
Step-by-step explanation:
(x₁ ,y₁) = (-4 , -5) & (x₂, y₂) = (2 , 10)
\(Slope=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\\\=\frac{10-[-5]}{2-[-4]}\\\\=\frac{10+5}{2+4}\\\\=\frac{15}{6}\\\\=\frac{5}{2}\\\\= 2.5\)
m = 5/2 ; (-4 , -5)
Equation: y - y1 = m(x -x1)
\(y - [-5] = \frac{5}{2}*(x - [-4])\\\\y + 5 = \frac{5}{2}(x + 4)\\\\y + 5 =\frac{5}{2}x + \frac{5}{2}*4\\\\y + 5 = \frac{5}{2}x + 5*2\\\\y + 5 = \frac{5}{2}x + 10\\\\ y = \frac{5}{2}x + 10 - 5\\\\ y = \frac{5}{2}x + 5\)
You pick a card at random, put it back, and then pick another card at random. 5 6 7 8 What is the probability of picking a prime number and then picking a prime number? Simplify your answer and write it as a fraction or whole number.
In fraction form, the answer is 1/4, which represents the simplified probability of the given event occurring.
To find the probability of picking a prime number and then picking another prime number, we first need to determine the total number of possible outcomes and the number of favorable outcomes.
Given the four numbers: 5, 6, 7, and 8, we can see that there are two prime numbers (5 and 7) and two non-prime numbers (6 and 8).
The total number of possible outcomes is 4 since there are four cards to choose from.
Now, let's consider the favorable outcomes, which are picking a prime number and then picking another prime number.
The probability of picking a prime number on the first draw is 2/4, as there are two prime numbers out of the four total cards.
Since we replace the card before the second draw, the probability of picking a prime number on the second draw is also 2/4.
To find the probability of both events occurring, we multiply the individual probabilities:
(2/4) * (2/4) = 4/16 = 1/4
Therefore, the probability of picking a prime number and then picking another prime number is 1/4.
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Solve for v:
5(5v + 4) = 17v + 8v+ 9 + 9
Omg Pleasssee Help Me
Answer:
5(5v+4)=17v+8v+9+9
25v+20=25v+18
25v-25v=18-20
0v=-2
i think soooo
this question is very very irrelevant
Step-by-step explanation:
Scientists developed a maze for rats that has 5 compartments, and each compartment had a different food. In each trial, scientists would record which compartment the rat went to first. They were curious if the rats favored some compartments more than others. Here are the results from 1000 trials.
Compartment #1 #2 #3 #4 #5
Observed arrivals 191 203 207 199 200 They want to perform a x' goodness-of-fit test to determine if these results suggest that rats get to one specific compartment more often than the other compartments. What is the expected count of arrivals to the second compartment? You may round your answer to the nearest hundredth.
The expected count of arrivals to the second compartment is 200.
To calculate the expected count of arrivals to the second compartment, we first need to assume that the rats have an equal chance of going to each compartment.
Since there are 5 compartments, the probability of a rat going to any compartment is 1/5.
Next, we multiply the total number of trials (1000) by the probability of going to the second compartment (1/5).
Expected count for compartment #2 = (Total trials) × (Probability of going to compartment #2)
Expected count for compartment #2 = 1000 × (1/5)
Now, we calculate the result:
Expected count for compartment #2 = 1000 × 0.2
Expected count for compartment #2 = 200.
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Write the equation that describes the line with slope = -8 and y -intercept = 2 in slope -intercept form (y=Mx+b).
Answer:
y=-8x+2
Step-by-step explanation:
The reason that is the answer is because the slope-intercept form is y=mx+b where m is the slope and b is the y-intercept so y=mx+b would be y=-8x+2
How do you do this question?
Answer:
a. 42%
b. 16%
Step-by-step explanation:
a. According to the curve, the bottom 80% of families has about 58% of the income, so the top 20% has about 42%.
b. The bottom 60% of families have about 32% of the income, and the bottom 40% of families have about 16% of the income. So the third quintile has about 32% − 16% = 16%.
The frame of a roof is shown. How long is each of the top pieces?
9514 1404 393
Answer:
4√3 ft ≈ 6.93 ft
Step-by-step explanation:
The ratios of side lengths in a 30-60-90 triangle are 1 : √3 : 2. This means ...
x/(6 ft) = 2/√3
x = (6 ft)(2/√3) = (6 ft)(2√3)/3
x = 4√3 ft
The top pieces are 4√3 ≈ 6.93 ft long.
If x < 0 and y < 0, where is the point (x, y) located?
Answer:
Point (x, y) is at Quadrant III.
Step-by-step explanation:
If x < 0, and y < 0, then the point (x, y) is located at Quadrant III.
The Cartesian plane is divided into four regions called "Quadrants."
Quadrant I: both the x- and y-coordinates are positive.
Quadrant II: x-coordinates are negative, but the y-coordinates are positive.
Quadrant III: both x- and y-coordinates are negative.
Quadrant IV: x-coordinates are positive, but y-coordinates are negative.
Given the description of the point, (x, y) where it states that x < 0 and y < 0 (which means that the point, (x, y) has negative coordinates), therefore located at Quadrant III.
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The lion population in a certain reserve drops by 5% every year. Currently, the population's size is 325. i.Write a function that gives the lion population size,P(t), t years from today ii. What will the population be in 4 years. Write an exponential function for all three
Answer:
1. The function that gives the lion population size P(t), t years from today is:
P(t) = 325(0.95)^t
2. To find the population in 4 years, we can substitute t=4 in the function:
P(4) = 325(0.95)^4
P(4) = 279.14
So the population will be approximately 279 lions in 4 years.
3. The exponential function for all three years is the same as in part 1:
P(t) = 325(0.95)^t
What is the inequality on this word problem.
Nancy has $240 in the bank. She wants to buy as many $15 video games as possible. How many video games could she buy if she wanted to keep at least $120 in the bank?
Nancy can buy maximum 8 video games.
How to solve inequality?Steps to solve inequality:
Get rid of all fractions by multiplying all terms by the fractions' lowest common denominator. Simplify the inequality by merging like terms on each side.To get the unknown on one side and the numbers on the other, add or subtract the appropriate amounts. multiply each term in the inequality by the unknown coefficient.The inequality will not change if the coefficient is positive.
The inequality will be the other way around if the coefficient is negative.
If Nancy wants to keep at least $120 in her account and at present, she is having $240
So, she can spend = 240-120= $120
And, one video game price= $15
Let us consider she can buy maximum 'X' games
15×X=$120
X = 8 units
Hence, she can buy a maximum of 8 video games.
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how many tickets are there when it weighs 135 grams
Answer:
about like 4-5
Step-by-step explanation:
its 4 or 5
PLS HELP :( i’ve been trying to understand this but i cant. please explain this if you know how to do it pleaseee
Answer:
\(\huge\boxed{\sf x = 17}\)
Step-by-step explanation:
Since m is a straight line, its measure is 180 degrees.
So,
2x + 5 + 8x + 5 = 180
2x + 8x + 5 + 5 = 180
10x + 10 = 180
10x = 180 - 10
10x = 170
Divide both sides by 10
x = 17
\(\rule[225]{225}{2}\)
Hope this helped!
~AH1807Peace!geometry, not sure if i’m right or wrong, if wrong what is the answer and how?
From the figure we can say that KM/KJ = (2x + 5)/(8x - 18) = 1/2
8x - 18 = 2(2x + 5) = 4x + 10
4x = 10 + 18 = 28
x = 28/4 = 7
x = 7
MN = 2x + 5 = 2(7) + 5 = 14 + 5 = 19
Answer:
MN = 19
What would the next step look like for simplifying the expression with the exponent?
Solution:
Given the expression below
\(\left(11c^9\right)^2\)The next step in simplifying the expression with the exponent will be
By applying exponent rule
\(\begin{gathered} \left(a\cdot \:b\right)^n=a^nb^n \\ (11c^9)^2=11^2\cdot c^{9\cdot2} \end{gathered}\)Hence, the answer is
\(\begin{equation*} 11^2\cdot c^{9\cdot2} \end{equation*}\)Please help me answer this correctly,
anywhere you see x, input the value in the brackets.
eg f(-2) = 2(-2)+8
= -4+8
=4
Answer:
if x= -2
then f(x) = 2×(-2)+8
= -4+8
= 4
if x=0
then f(x)=2×0+8
=0+8
=8
if x=5
then f(x)=2×5+8
=10+8
=18
x is an acute angle. Find the value of x in degrees.
COS x=0.2
write your answer as an integer or as a decimal rounded to the nearest hundredth.
The value of x in degrees will be x=78.46
What is trigonometry?The branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles.There are different angles like Cos,Sin,tan,cosec,sec and cot in the trigonometry.
It is given that:
We have the value of CosX=0.2 we will take inverse of the value 0.2 and find the angle X. after taking the cos inverse of the value 0.2 we found out the angle X=78.46
Cos X = 0.2
X = Cos¹ 0.2
X = 78.46°
Hence the value of x in degrees will be x=78.46
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Subtract (8b^2+7b+5)-(b+4)
finle answers
Answer:
\( {7}^{2} \)
\(7\)
equations
What are the coordinates of the vertices of the final image? A. P’(12, -6), Q’(8, -7), R’(4, -4), and S‘(7, -1) B. P’(12, 8), Q’(8, 9), R’(4, 6), and S‘(7, 3) C. P’(-12, 6), Q’(-8, 7), R’(-4, 4), and S‘(-7, 1) D. P’(12, 6), Q’(8, 7), R’(4, 4), and S’(7, 1)
Answer:
Given that the vertices of quadrilateral PQRS are P(6,3), Q(4,2), R(2,4) and S(4,5) and the quadrilateral is dilated with a scale factor of 2, about the origin.
Now, let's find the new vertices of the dilated image:
Vertex P is dilated by a scale factor of 2, its new coordinates will be (2 × 6, 2 × 3) = (12, 6). Therefore, the new vertex P' is at (12, 6).
Vertex Q is dilated by a scale factor of 2, its new coordinates will be (2 × 4, 2 × 2) = (8, 4). Therefore, the new vertex Q' is at (8, 4).
Vertex R is dilated by a scale factor of 2, its new coordinates will be (2 × 2, 2 × 4) = (4, 8). Therefore, the new vertex R' is at (4, 8).
Vertex S is dilated by a scale factor of 2, its new coordinates will be (2 × 4, 2 × 5) = (8, 10). Therefore, the new vertex S' is at (8, 10).
Therefore, the coordinates of the vertices of the final image are P’(12, 6), Q’(8, 4), R’(4, 8), and S’(8, 10).So, the correct option is D. P’(12, 6), Q’(8, 4), R’(4, 8), and S’(8, 10).
Step-by-step explanation:
Hope this helps you!! Have a good day/night!!
What is the value of the expression 2^2 + 8^2 ÷ 2^2?
8
10
17
20
Answer:
answer is 20
Step-by-step explanation:
2^(2) =4
8^(2) =64
2^2 =4
4+64-:4
64-:4=16
16+4=20
HELP PLEASE I’ll give you 5 stars
Answer & Step-by-step explanation:
On the left:
There are 4 triangles that indicate -x, so this is -4
There are 3 circles that indicate -1, so these are -3.
Insert as an expression:
\(-4x-3\)
On the right:
There are 2 triangles that indicate -x, so this is -2x.
There are 2 circles that indicate -1, so these are -2.
Insert as an expression:
\(-2x-2\)
Combine both expressions into an equation:
\(-4x-3=-2x-2\)
Solve for x. Add 3 to both sides:
\(-4x-3+3=-2x-2+3\\\\-4x=-2x+1\)
Add 2x to both sides:
\(-4x+2x=-2x+2x+1\\\\-2x=1\)
Isolate the variable. Divide both sides by -2:
\(\frac{-2x}{-2} =\frac{1}{-2}\\\\ x=-\frac{1}{2}\)
:Done
What is the best estimate for the value of the expression?34 163O-30-23/O0707/12/2O
Given:
Expression is given
Required:
What is the best estimate for the value of the expression
Explanation:
-3(whole number)
-2.6(1 decimal places)
-2.64(2 decimal places)
Required answer:
Option A
#10:
The weight (in pounds) of each wrestler on the high
school wrestling team at the beginning of the season is
listed below.
178 142 112 150 206 130
Two more wrestlers join the team during the season.
The addition of these wrestlers has no effect on the
mean weight of the wrestlers, but the median weight
of the wrestlers increases 3 pounds.
Determine the weights of the two new wrestlers.
The two new wrestlers must weigh 164 pounds each in order for the median to increase by 3 pounds.
What is median?Median is used to identify the central tendency of the data and is calculated by sorting the data in order from smallest to largest and then selecting the middle value.
Since the median weight of the wrestlers increases by 3 pounds, the median of the new data set (with the two new wrestlers) must be 153 pounds.
To calculate the weights of the two new wrestlers, we need to arrange the data set in ascending order first.
When the two new wrestlers are included, the new data set looks like this: 112, 130, 142, 150, 178, 206, x, y.
The median number in this data set is the average of the third and fourth numbers, 150 and 178.
Thus, the equation is written as
(150 + 178) / 2 = 164.
We can then solve this equation to find the weights of the two new wrestlers.
150 + 178 = 328
328 / 2 = 164.
So, the two new wrestlers must weigh 164 pounds each in order for the median to increase by 3 pounds.
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The floor of a storage unit is 7 meters long and 2 meters wide. Starting at the far left corner, Irma walks down the length, across the width, and then diagonally back to the far left corner. How far does Irma walk? If necessary, round to the nearest tenth.
Answer: 14.4
Step-by-step explanation: