Answer:
-56/34 is the answer
Step-by-step explanation:
Mark as brainlist if it's helpfull
Compare the two linear functions listed below and determine which has a negative slope.
Answer:
Gift card
Step-by-step explanation:
Given
Function 1 and 2
Required
Which has a negative slope
For the first function (Gift card), we have the following observation.
As x increases from 0, 1, 2 and then 3
The values of y keep reducing
This means that the gift card function has a negative slope
For the second function (calculator rental)
We have:
[tex]c = 10 + 5m[/tex]
The slope of function [tex]y =mx + b[/tex] is m
So, by comparison
[tex]m=5[/tex]
5 is positive,
This means that the gift card function has a negative slope
emergency helpn please i dk wut they mean
Answer:
below
Step-by-step explanation:
that is the procedure above
ABCD is a kite, find the value of y
Answer:
All triangles add to 180 degrees.
180 = 90 + 40 + angle ABX
angle ABX = 180 - 90 - 40
Angle y = 50
Step-by-step explanation:
Josh's annual salary is $39.000. A total of $12.330.96 will be deducted for taxes and health insurance. He will receive his paycheck monthly in 12 equal installments. How much will he get paid with each paycheck?
Answer:
Step-by-step explanation:
without tax and insurance deduction- 3,250 (monthly)
with tax and insurance deduction-26,669.04/12=2,222.42 (monthly)
Write the prime factorization of 4
Answer:
2 x 2
Explanation:
The prime numbers that multiply to 4 are 2 and 2.
What is the distance between points F(2, 9) and G(4, 14)? Round to the nearest whole number
Answer:
5
Step-by-step explanation:
5.4 rounded is 5
Change 10 miles per hour to meters per second (hint: you'll need to
change from miles to kilometers, then change kilometers to meters)
how do i do this work shown!!
Answer:
10 miles per hour = 0.1862 meter per second
Step-by-step explanation:
Given
Speed in miles per hour = 10 miles per hour
As we know
1 mile = 1609.34 meters
and 1 hour = 24*60 *60 seconds
Thus, 10 miles per hour in meter per second would be
10 * 1609.34/24*60 *60
= 0.1862 meter per second
Is this answer correct? If not, which one is correct?
Answer:
correct
Step-by-step explanation:
A concrete beam may fail either by shear (S) or flexure (F). Suppose that three failed beams are randomly selected and the type of failure is determined for each one. Let X = the number of beams among the three selected that failed by shear. List each outcome in the sample space along with the associated value of X.
S: FFF SFF FSF FFS FSS SFS SSF SSS X:
Answer:
[tex]\begin{array}{cc}{Outcome} & {X's} & {FFF} & {0} & {SFF} & {1} & {FSF} & {1} & {FFS} & {1} & {FSS} & {2}& {SFS} & {2}& {SSF} & {2}& {SSS} & {3} \ \end{array}[/tex]
Step-by-step explanation:
Given
[tex]S_S = \{FFF, SFF, FSF, FFS, FSS, SFS, SSF, SSS\}[/tex]
[tex]X \to[/tex] Number of beams failed by shear
Required
List each outcome and the value of X
To do this, we simply count the occurrence of S in each outcome.
This is tabulated as follows:
[tex]\begin{array}{cc}{Outcome} & {X's} & {FFF} & {0} & {SFF} & {1} & {FSF} & {1} & {FFS} & {1} & {FSS} & {2}& {SFS} & {2}& {SSF} & {2}& {SSS} & {3} \ \end{array}[/tex]
Which expression is equivalent to 3/4x -1/4xy
Answer:
\frac{3+x\frac{-4}{4xy}}{4x}
4x
3+x
4xy
−4
Step-by-step explanation:
which of the following us the graph of f(x)=-0.5| x+3| -2
annual survey in which readers rate their favorite cruise ship. All ships are rated on a -point scale, with higher values indicating better service. A sample of ships that carry fewer than passengers resulted in an average rating of , and a sample of ships that carry or more passengers provided an average rating of . Assume that the population standard deviation is for ships that carry fewer than passengers and for ships that carry or more passengers. Round your all answers to two decimal places.
This question is incomplete, the complete question is;
Condé Nast Traveler conducts an annual survey in which readers rate their favorite cruise ship. All ships are rated on a 100-point scale, with higher values indicating better service.
A sample of 37 ships that carry fewer than 500 passengers resulted in an average rating of 85.36, and a sample of 44 ships that carry 500 or more passengers provided an average rating of 81.40.
Assume that the population standard deviation is 4.55 for ships that carry fewer than 500 passengers and 3.97 for ships that carry 500 or more passengers. What is the value of the test statistic? Round your all answers to two decimal places.
Answer:
value of the test statistic is 4.13
Step-by-step explanation:
Given the data in the question;
fewer than 500 passengers more than 500 passengers
n₁ = 37 n₂ = 44
x'₁ = 85.36 x'₂ = 81.40
s₁ = 4.55 s₂ = 3.97
Now, to get the test statistics, we use the following formula;
z = (x'₁ - x'₂) / √( [tex]\frac{s_1^2}{n_1} + \frac{s_2^2}{n_2}[/tex] )
we substitute
z = ( 85.36 - 81.40 ) / √( [tex]\frac{(4.55)^2}{37} + \frac{(3.97)^2}{44}[/tex] )
z = 3.96 / √( [tex]\frac{20.7025}{37} + \frac{15.7609}{44}[/tex] )
z = 3.96 / √( 0.5595 + 0.3582 )
z = 3.96 / √0.9177
z = 3.96 / 0.957966596
z = 4.1337 ≈ 4.13
Therefore, value of the test statistic is 4.13
Dina invests $600 for 5 years at a rate of 2% per year compound interest.
Calculate the value of this investment at the end of the 5 years,
Answer:
The investment after 5 years is $ 662.45.
Step-by-step explanation:
Principal, P = $ 600
Time, t = 5 years
Rate of interest, R = 2 %
Time , t = 5 years
The amount after the time 5 years is
[tex]A = P \times \left ( 1+\frac{R}{100} \right )^t\\\\A = 600\left ( 1+0.02 \right )^5\\\\A = 662.45[/tex]
So, the investment after 5 years is $ 662.45.
If 25x2 – 35x – 18 is written as a2 – 7a – 18, what is a in terms of x?
a =
Answer:
a = 5x
Step-by-step explanation:
The value of an in terms of x will be a = 5x.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that the expressions are 25x² – 35x – 18 is written as a² – 7a – 18.
The value of an in terms of x will be calculated as:-
25x² – 35x – 18
a² – 7a – 18.
Compare the first term of the two equations,
25x² = a²
a = √25x²
a = 5x
To know more about an expression follow
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factorise a2-17a+42
Answer:
(a-14) (a-3)
Step-by-step explanation:
Answer:
(a - 14) (a - 3)
Step-by-step explanation:
a² - 3a - 14 a + 42
a(a - 3) - 14 ( a - 3)
(a - 14) (a - 3)
Use mathematical induction to prove the statement is true for all positive integers n, or show why it is false.
I need help with the k+1 part of the proof
The base case is true, since
1² = 1
1 (6×1² - 3×1 - 1) / 2 = 1
Assume the equality holds for n = k, so that
1² + 4² + 7² + … + (3k - 2)² = k (6k ² - 3k - 1) / 2
Then for n = k + 1, we would have
1² + 4² + 7² + … + (3k - 2)² + (3 (k + 1) - 2)² = k (6k ² - 3k - 1) / 2 + (3 (k + 1) - 2)²
… = (6k ³ - 3k ² - k) / 2 + (3k + 3 - 2)²
… = (6k ³ - 3k ² - k) / 2 + (3k + 1)²
… = (6k ³ - 3k ² - k) / 2 + 9k ² + 6k + 1
… = (6k ³ - 3k ² - k + 18k ² + 12k + 2) / 2
… = (6k ³ + 15k ² + 11k + 2) / 2
We want to end up with
(k + 1) (6 (k + 1)² - 3 (k + 1) - 1) / 2
which means the numerator should have a factor of k + 1; it does, since
(6k ³ + 15k ² + 11k + 2) / (k + 1) = 6k ² + 9k + 2
This quotient should be equal to
6 (k + 1)² - 3 (k + 1) - 1
and it is; you can confirm this by expanding:
6 (k ² + 2k + 1) - 3 (k + 1) - 1 = 6k ² + 9k + 2
and we're done.
You measure 20 turtles' weights, and find they have a mean weight of 45 ounces. Assume the population standard deviation is 11.5 ounces. Based on this, what is the maximal margin of error associated with a 90% confidence interval for the true population mean turtle weight. Give your answer as a decimal, to two places
Answer: the maximal margin of error associated with a 90% confidence interval for the true population mean turtle weight = 4.23
Step-by-step explanation:
Formula for margin of error : [tex]E=\dfrac{z^*\times (Population\ standard\ deviation)}{\sqrt{Sample\ size}}[/tex]
, where z* = Critical z-value.
Given: population standard deviation = 11.5 ounces
Sample size = 20
Z value for 90% confidence level = 1.645
margin of error (E) = [tex]\dfrac{1.645\times11.5}{\sqrt{20}}[/tex]
[tex]\approx4.23[/tex]
Hence, the maximal margin of error associated with a 90% confidence interval for the true population mean turtle weight = 4.23
The vertex of the parabola below is at the point (2, -5). Which of the equations
below could be the one for this parabola?
On a coordinate plane, rhombus W X Y Z is shown. Point W is at (7, 2), point X is at (5, negative 1), point Y is at (3, 2), and point Z is at (5, 5).
What is the perimeter of rhombus WXYZ?
the answer is 4,13 of the perimeter
Which type of sequence is shown? -2, 0, 2, 4, 6, . . .
Answer:
The type of sequence that is show is an arithmetic sequence
Step-by-step explanation:
Need help in understanding how to solve this problem.
>> Find an equation of the plane through (−2,3,2) and parallel to the plane 3x+y+z= 4
Answer:
Step-by-step explanation:
3x+y+z= 4
3x+ y = 4 - z
y = 4-z-3x
We then make parallel
y-2 = 4−z−3x
y-2 = 4-2 -z-3x
y-2 = 2-z-3x
y = -z-3x+2
A 12 SIDED DIE WITH SIIDES LABLELED 1-12 ARE ROLLED ONCE. EACH NUMBER IS LIKELY TO BE ROLLED .WHAT IS THE PROBABILITY OF ROLLING A NUMBER GREATER THAN 10
Answer:
p=.1666
11 or 12
2 out of 12
2/12
1/6
p=.1666
Step-by-step explanation:
Need help will give brainliest
Answer:
X=15
Step-by-step explanation:
line segment with length 18 is tangent and other one is secant so
[tex] {18}^{2} = 12(12 + x) \\ 324 = 144 + 12x \\ 324 - 144 = 12x \\ 180 = 12x \\ x = 180 \div 12 \\ x = 15[/tex]
(x+iy)^4 -(x+iy)^2 +16=0
Answer:
below
Step-by-step explanation:
that is the procedure above
What is x3 – 25x factored completely
Answer:
x(x2-25)=o
x=0;x=5 and -5
Answer:
[tex] {x}^{3} - 25x \\ = x( {x}^{2} - {5}^{2} ) \\ = x(x - 5)(x + 5)[/tex]
..........................HELP.....................BRAiNLIEST TO FIrSt 2 answers
Answer:
14) 9:15 pm
15) 6hrs 30min
Step-by-step explanation:
Hope this helps
Answer:
1. 6 hours 30 mins
2. 8: 15 PM
Step-by-step explanation:
1. To figure this out, we need to find the number of hours between 2 AM and 8 AM. Hence, 8-2 which is 6.
Now we need to find the time between 8 AM and 8:30 AM, which is 30 minutes.
Put them together and you get 6 hours and 30 mins.
2. For this one, we need to go 9 hours back from 6 AM, which is 9 PM. From 9 PM, we need to go back another 3/4 of an hour.
1 hour = 60 minutes
1/4 hour = 15 minutes
1/2 hour = 30 minutes
3/4 hour = 45 minutes
Since 3/4 of an hour is euqal to 45 minutes, we need to go back 45 minutes from 9 PM which is 8:15 PM.
Hope This Helps!
7. Your closet has 10 shirts for every 4 sweaters. Your closet has 40 shirts. How many sweaters are
in your closet?
Answer:
16 sweaters
Step-by-step explanation:
4=10
4=10
4=10
4=10
4x4=16
What is the distance between the points (4.10) and (-3,-14) on the coordinates plane?
Answer:
25 units
Step-by-step explanation:
use the distance formula to get the square root of 24² + 7²
this will give you the square root of 625, which is 25
A: A
B: B
C: C
D: D
Show work!
Answer: A
Step-by-step explanation:
Area of a triangle is base times height
We have a base made by point m and n with a length of 6
now the third point has to form a height which when put with the base, gets you 18
area of triangle is bh/2
so lets set height as h, 6x/2 = 18 6x = 36 x = 6
This means the point has to be 6 apart either left or right. Only point that matches this is a.
Can someone help me solve this
Answer:
[tex]y = {(x + 8)}^{3} - 9[/tex]