Answer:
x= 1.5 Hope that helps!
Step-by-step explanation:
1. 12(5x-4.5)=36 First Divide both by 12 5x-4.5-36/12 = 3
2. 5x-4.5=3 add 4.5 to both sides
3. 5x= 3+4.5 = 7.5
4. 5x=7.5 divide both sides by 5 x=7.5/5= x=1.5
So, x=1.5 would be your answer. Can you make me Brainliest Please
-2c + 8 - 7c - 6 -5c + 14 -5c + 14 -9c + 2 -9c + 2 9c - 14 9c - 14 5c + 14 5c + 14
Answer:
= -152c + 32
Step-by-step explanation:
sry if wrong
Which graph represents the equation y=-
--*x+3?
B)
t
Answer:
The correct answer would be the 3rd graph!
Hope this helps!
Tim had 13 flashlights. He ate 4 of them and went to the hospital. In the hospital he got 2 removed from his body and he pooped out the rest. How much flashlights dose he have now?
Answer:
13 because he never gave them away
on a test of 80 problems, Bill got 75% of the problema correct.
How many did he get correct?
Answer:
60 problems
Step-by-step explanation:
Find how many he got correct by multiplying 80 by 0.75:
80(0.75)
= 60
So, Bill got 60 problems correct
a cylinder has a diameter of 40 ft and the height of 32 ft what is the surface area of the cylinder
Answer:
6534.51 ft.
Step-by-step explanation:
Answer:
6534
Step-by-step explanation:
Im wrong dont put this in unless its multiple choice and you see this awnser
The manager of a restaurant tracks the types of dinners that customers order from the menu correct amount of food is ordered from the supplier each week. Data from customer orders last weekly distribution.
Type of Dinner Beef Chicken Fish Pork Vegetarain
Propotion 0.18 0.41 0.15 0.20 0.06
The manager believes that there might be a change in the distribution from last year to this year. A random sample of200 orders was taken from all customer orders placed last week. The following table shows the results of the sample.
Type of Dinner Beef Chicken Fish Pork Vegetarain
Frequency 32 86 34 30 18
Assume each order is independent. For which type of dinner is the value of its contribution to the appropriate test statistic the greatest?
a. beef
b. chicken
c. fish
d. pork
e. vegetarian
Answer:
The answer is "Option E".
Step-by-step explanation:
In order to find the contribution needed, we must use Chi-Square test statistics here.
Chi-square [tex]= \Sigma [\frac{(O -E)^2}{E}][/tex]
Here frequencies O are observed or frequencies E are expected.
Please find the calculation in the attached table.
Hence the contribution Chi-square is the highest for the vegetarian.
The value of its contribution to the appropriate test statistic the greatest is Vegetarian. The correct option is E.
What is chi-square?It is a measure of the difference between the observed and expected value or frequency of the outcomes of a set of event variables.
The manager of a restaurant tracks the types of dinners that customers order from the menu correct amount of food is ordered from the supplier each week. Data from customer orders last weekly distribution.
Type of Dinner Beef, Chicken, Fish, Pork, and Vegetarian
Proportion 0.18 0.41 0.15 0.20 0.06
The manager believes that there might be a change in the distribution from last year to this year. A random sample of 200 orders was taken from all customer orders placed last week. The following table shows the results of the sample.
Type of Dinner Beef, Chicken, Fish, Pork, and Vegetarian
Frequency 32 86 34 30 18
The table is shown below.
The value of its contribution to the appropriate test statistic the greatest is Vegetarian. The correct option is E.
More about the chi-square link is given below.
https://brainly.com/question/20566562
I don’t understand how to solve this. Please explain the steps. Thanks.
Answer:
D
Step-by-step explanation:
When you are raising something to a fractional power, you are raising it to the power of the numerator and finding the root denoted by the denominator. The explanation above is kinda confusing, so here is an example:
x^(3/5)
This would be written as:
[tex]\sqrt[5]{x^3}[/tex]
Now for the actual problem. Since the numerator is 4, we start by raising x to the 4th power, x^4.
Because the denominator is 5, we find the 5th root:
[tex]\sqrt[5]{x^4}[/tex]
This matches none of the answers shown, so the answer is none of the above or D.
Answer:
D
Step-by-step explanation:
The answer would be 5 square root x^4
See Image Below:)
UYK
♡ The size of a rhombus is half the longer diagonal.
The height of the ronbus is 3cm
and
the area is 21cm². Find the length of the longer
diagonal
Answer:
Step-by-step explanation:
Area = height × side
21 = 3 * side
side = 7 cm
The side of a rhombus is half the longer diagonal
longer diagonal = 2*side =2*7=14cm
ANSWER FAST I JUST NEED ANSWER
Answer:
EDITED
I think 18
monkeeeeeeeeeeeeeeeeeeeeeee also help
[tex] \frac{9}{27} = \frac{1}{3} [/tex]
This is the simplest form of the fraction.
9/27 9 Council it self 1 and goes into 27 three times so the answer will be 1/3.
Does the line passing through the points (−1,−5) and (2,1) intersect the line passing through the points (−1,−6) and (1,2)?
Answer:
Yes
Step-by-step explanation:
As long as the slopes of these two lines are not the same, they will intersect.
Given two points on a line, we can find the slope by taking the difference in the y coordinates and dividing it by the difference in the x coordinates.
Slope of 1st line: [tex]\frac{-5-1}{-1-2} =\frac{-6}{-3} =\frac{1}{2}[/tex]
Slope of 2nd line: [tex]\frac{-6-2}{-1-1} =\frac{-8}{-2}=4[/tex]
The slopes are not equal, therefore the lines intersect.
h(x)=x^2 - 5x g(x)=2x find (h+g)(x)
A) -3x - 2
B) x^2 + 3x
C) -7x + 4
D) x^2 - 3x
Answer:
sorry I don't get the question I am in MIDDLE school
If function f is the parent exponential function f(x) =e^x what is the equation of transformed function g in terms of function f? Replace the value of a to complete the equatlon.
Answer:
a = 3Step-by-step explanation:
Find the y-intercept of f(x):
f(0) = e^0 = 1The y-intercept of g(x) is 3 as per graph.
Solve for a:
g(0) = a*f(0) 3 = a*1a = 3Answer:
a=3
Step-by-step explanation:
passed plato test
write equation that represents the balance hanger above 6x+15=4x+20 unit 1
Answer:
x = 5/2
Step-by-step explanation:
6x+15=4x+20
Collect like terms
6x - 4x = 20 - 15
2x = 5
x = 5 / 2
Find the product of
(−9−11i) and its conjugate.
Answer:
202
Step-by-step explanation:
First, we can find the conjugate of (-9 -11i)
Given a complex number a + bi, the conjugate would be a - bi.
So, the conjugate of -9 -11i is -9 + 11i.
Now, we multiply!
(-9-11i)(-9+11i)
This resembles the special product (a+b)(a-b) which multiplies out to a^2 - b^2
To apply this we subtract the square of the second number from the first.
(-9)^2 - (11i)^2
81 - 121i^2
i^2 is -1, so we can substitute it in:
81 + 121 = 202
R, S, and T represent the lengths of the three sides of a right triangle. Select the equation that represent the relationship between R, S and T. (the two's are exponents)
a. R 2+ S 2= T 2
b. R 2+ T 2 = S 2
c. R 2 + R 2= S 2
d. T 2 + S 2= R 2
e. T 2- S 2= R 2
Answer:
a. R 2+ S 2= T 2
Step-by-step explanation:
Is this multiple choice? If not, then I will explain my answer.
I would say that it is R² + S² = T² because, the original pythagorean theorem equation is a² + b² = c².
They are put in an alphabetical order, a, b, c.
R goes first in the alphabet, then S and T. So, that's why I say it is:
R² + S² = T²
I hope this helps! Please tell me if I'm incorrect! Have a great day may God bless you!
(Also, if you have a keyboard like mine, then you can make an exponent 2, by doing alt + 0178 )
² <-or just cut and paste this
determine the value of the expression 4^3 x 4^ -6
A) -12
B)-1/12
C)64
D)1/64
Answer:
D) [tex]\frac{1}{64}[/tex]
Step-by-step explanation:
The -6 will never make it negative, just divide instead if multiply
(4x4x4) x (4÷4÷4÷4÷4÷4)
what does a business need to do to keep a positive cash flow?
Step-by-step explanation: shoe store
Answer:
promotion maybe or like good customer serves not sure tho
The measure of an angle is 152°. What is the measure of its supplementary angle?
Answer:
[tex]\huge{\boxed{\boxed{\tt { ⎆ Answer :- }}}} \ [/tex]
Supplementary angles form 180°.
One angle = 152°
Other angle = y°
[tex]152 + y = 180 \\ y = 180 - 152 \\ y = 28[/tex]
➳ The measure of its supplementary angle is 28°.
The top of a 220 foot vertical tower is to be anchored by cables that make an angle with a measure of 53 degrees with the ground.
How long must each cable be?_____ feet
How far from the base of the tower should the anchors be placed? ____ feet
Answer:
175.70 ft, 291.95 ft
Step-by-step explanation:
First step is always a diagram, and writing out trig functions for reference:
SOH CAH TOA
First, solving for length of the cable, ie the hypotenuse:
sin53 = 220 / hyp
hyp sin53 = 220
hyp = 220 * sin53
hyp = 175.70 feet
Then, solving for the base length:
tan53 = 220 / adj
adj * tan53 = 220
adj = 220 * tan53
adj = 291.95 feet
A realtor collects the data set given in DS 12.2.4 concerning the sizes of a random selection of newly constructed houses in a certain area together with their appraised values for tax purposes.
1. Fit a linear regression model with appraised value as the explanatory variable and size as the dependent variable.
2. What is the estimate of the error variance?
A B
Area (square feet) Appraised Value ($1000)
1380 76
3120 216
3520 238
1130 69
1030 50
1720 119
3920 282
1490 81
1860 132
3430 228
2000 145
3660 251
2500 170
1220 71
1390 29
The table is missing in the question. The table is attached below.
Solution :
Let X = appraised value
Y = area (square feet)
The regression line is given by :
[tex]$\hat y = b_0+b_1X$[/tex]
[tex]$b_1=\frac{n\sum XY-\sum X \sum Y}{n \sum X^2-(\sum X)^2}$[/tex]
[tex]$=\frac{15(5964990)-(2157)(33370)}{15(404799)-(2157)^2}$[/tex]
[tex]$=12.3267$[/tex]
[tex]$b_0=\frac{\sum Y}{n}-b_1\frac{\sum X}{n}$[/tex]
[tex]$=\frac{33370}{15}-\left(12.3267 \times \frac{2157}{15}\right)$[/tex]
[tex]$b_0=452.0841$[/tex]
The regression line is :
[tex]$\hat Y = 452.0841+12.3267 X$[/tex]
To estimate the error variance, we have:
Error variance, [tex]$\sigma =\sqrt{\frac{\sum (Y-\hat Y)^2}n-2{}}$[/tex]
[tex]$=\sqrt{\frac{587682.3}{15-2}}$[/tex]
[tex]$=212.6178$[/tex]
A company produces millions of 1-pound packages of bacon every week. Company specifications allow for no more than 3 percent of the 1-pound packages to be underweight. To investigate compliance with the specifications, the company's quality control manager selected a random sample of 1,000 packages produced in one week and found 40 packages, or 4 percent, to be underweight. Assuming all conditions for inference are met, do the data provide convincing statistical evidence at the significance level of α= 0.05 that more than 3 percent of all the packages produced ir one week are underweight?
a. Yes, because the sample estimate of 0.04 is greater than the company specification of 0.03.
b. Yes, because the p-value of 0.032 is less than the significance level of 0.05.
c. Yes, because the p-value of 0.064 is greater than the significance level of 0.05.
d. No, because the p-value of 0.032 is less than the significance level of 0.05.
e. No, because the p-value of 0.064 is greater than the significance level of 0.05.
Answer:
We accept H₀ we don´t have enough evidence to support that more than 3 % of the packages are undeweight
Step-by-step explanation:
Sample size n = 1000
x ( defective packages found) = 40
p = 40 /1000 p = 0,04 p = 4 % then q = 0,96
np = 0,04 * 1000 and nq / 0.96 * 1000 both greater than 5
Then we can use the approximation of binomial distribution to normal distribution.
α is significance level α = 0,05
From z- table we find z(c) for α = 0,05 z(c) = 1,64
Test Hypothesis
Null Hypothesis H₀ p = 0,03
Alternative Hypothesis Hₐ p > 0,03
We can see from alternative Hypothesis that the test is a one tail test to the right of the bell shape curve of the normal distribution
To calculate z(c) = ( 0,04 - 0,03 ) / √ ( p*q)/n
z(c) = 0,01 * 31,62 / √ 0,04*0,96
z(c) = 0,3162 / 0,1959
z(c) = 1,6140 z(c) ≈ 1,61
Comparing z(s) and z(c)
z(c) > z(s) 1.64 > 1.61
Then z(s) is in the acceptance region for H₀ we accept H₀
A numerical pass code is required to open a car door. The pass code is five digits long and uses the digits 0–9. Numbers may be repeated in the pass code. How many different pass codes exist? 2995
Answer:
100 000 passcodes
Step-by-step explanation:
n = 10^5 = 100000
Hope this helps
Match the the statements written in English with the mathematical statements.
A is 4
B is 1
C is 5
D is 6
E is 2
F is 3
Which angle(s) is (are) complimentary to the
57
°
angle?
Answer:
90°
Step-by-step explanation:
The complement of 57° is the angle that when added to 57° forms a right angle (90° ).
I hope I am right
Answer:
33°
Step-by-step explanation:
Complimentary angles add up to 90° so:
90° - 57° = 33°
Have a great day <3
im sorry if im asking alot
Answer:
They arrived at 12pm.
Step-by-step explanation:
7:30am + 4 hours = 11:30am.
You still have 30 minutes left, so add those together.
11:30am + 30 minutes = 12pm.
the time when they left = 7:30 am
The interval of the trip on the train = 4hours 30 minutes
that can be written as 4:30
so 7:30+4:30 = 11:60 = 12:00(ans)
Hope it helps
Ahab has a savings account with $4,000 in it that earns 7% simple
interest per year.
How much money, to the nearest penny, will Ahab have in 5 years?
Answer:
In 5 years Ahab will have $ 5,400.
Step-by-step explanation:
Given that Ahab has a savings account with $ 4,000 in it that earns 7% simple interest per year, to determine how much money, to the nearest penny, will Ahab have in 5 years, the following calculation must be performed:
4,000 + (4,000 x 0.07 x 5) = X
4,000 + (280 x 5) = X
4,000 + 1,400 = X
5,400 = X
Therefore, in 5 years Ahab will have $ 5,400.
What is the approximate difference in average daily miles between the two weeks?
a length of 25 meters.cindy cut the string in 4 pieces of equal length.how was each piece
Answer:
6.25 meters
Step-by-step explanation:
25/4 = 6.25
Length of each cut piece is 6.25 m.
What is division?The division is one of the basic arithmetic operations in math in which a larger number is broken down into smaller groups having the same number of items.
Given
A length of 25 meters cut the string in 4 pieces of equal length.
= [tex]\frac{25}{4}[/tex]
= 6.25
Length of each cut piece is 6.25 m.
Find more information about division here
https://brainly.com/question/5805897
#SPJ2
If f(x) = x - 9 and g(x) = -6x - 3,
which statement is true?
Click on the correct answer.
-1 is in the domain of fºg.
-1 is not in the domain of fºg.
9514 1404 393
Answer:
-1 is in the domain of fºg
Step-by-step explanation:
Both functions are odd-degree polynomials (as written here), so both functions have a domain and range of "all real numbers."
-1 is in the domain of f(g(x))