Answers
Answer:
2y+1+5y-3=180
Step-by-step explanation:
7y-2=180
7y=180+2
7y=182
y=182/7
y= 26
Answer:
y = 26
Step-by-step explanation:
2y + 1 + 5y - 3 = 180
combine like terms
7y - 2 = 180
+2 +2
7y = 182
divide by 7
y = 26
Hope I helped! Plz mark as brainliest! Have a nice day/night!!! :D
-Lil G
Related Questions
A lab is testing the amount of a certain active chemical compound in a particular drug that has been recently developed. The manufacturer claims that the average amount of the chemical is 95 mg. It is known that the standard deviation in the amount of the chemical is 5 mg. A random sample of 25 batches of the new drug is tested and found to have a sample mean concentration of 89.9 mg of the active chemical.
Calculate the 95% confidence interval for the mean amount of the active chemical in the drug. Give your answers to 2 decimal places. (suppose to be number less than and equal to mean less than and equal to another number)
Answers
Answer:
The 95% confidence interval is "87.94, 91.86".
Step-by-step explanation:
The given values are:
Sample batches,
n = 25
Sample mean concentration,
[tex]\bar{x}[/tex] = 89.9 mg
Amount of chemical,
σ = 5
α = 0.05
The critical value from Z table will be:
= [tex]Z(\frac{\alpha}{2} )[/tex]
= [tex]Z(\frac{0.05}{2} )[/tex]
= [tex]1.96[/tex]
Now,
The confidence interval will be:
= [tex]\bar{x} \pm Z(\frac{\alpha}{2} )\times \frac{\sigma}{\sqrt{n} }[/tex]
On substituting the values, we get
= [tex]89.9 \pm Z(\frac{0.05}{2})\times \frac{5}{\sqrt{25}}[/tex]
= [tex]89.9 \pm Z(\frac{0.05}{2})\times \frac{5}{5}[/tex]
= [tex]89.9 \pm1.96\times 1[/tex]
Lower limit will be:
= [tex]89.9 -1.96\times 1[/tex]
= [tex]87.94[/tex]
Upper limit will be:
= [tex]89.9 +1.96\times 1[/tex]
= [tex]91.86[/tex]
Juan determines that a triangle has sides that measure 5 cm, 12 cm, and 13 cm. The same triangle also has one 90°° angle and two angles that are less than 90°°. Which best describes the triangle Juan is measuring?
isosceles right
scalene acute
scalene right
equilateral right
Answers
Answer:
scalene right
Step-by-step explanation:
A scalene right has no equal side lengths, has a right side(90) and will have two angles less than 90 because all three triangle sides need to equal to be 180. So scalene right is your answer. Hope that helped!
1
The area of a square window is
given by the expression
m’ - 16m+64. Which expression
represents the length of one side
of the window?
a)m - 8
b) m + 4
c)m - 4
d) m + 8
Answers
Answer:
Step-by-step explanation:
-8 ok!
In the last several weeks, 18 days saw rain and 29 days saw high winds. in the same time period 7 days saw both rain and high winds. How many days saw either rain or high winds
Answers
Answer:
40 days saw either rain or high winds
Step-by-step explanation:
We solve this question using Venn sets.
I am going to say that:
Set A: Rain
Set B: High winds.
18 days saw rain
This means that [tex]A = 18[/tex]
29 days saw high winds
This means that [tex]B = 29[/tex]
7 days saw both rain and high winds.
This means that [tex]A \cap B = 7[/tex]
How many days saw either rain or high winds?
This is
[tex]A \cup B = A + B - A \cap B[/tex]
Sp
[tex]A \cup B = 18 + 29 - 7 = 40[/tex]
40 days saw either rain or high winds
PLS HELPP i need this
Answers
Answer:
[tex] \therefore x =2[/tex]
Step-by-step explanation:
[tex] \triangle TPR \sim \triangle SQR... (given) [/tex]
[tex] \therefore \frac{TP}{SQ} = \frac{PR}{QR}[/tex]
[tex] \therefore \frac{TP}{SQ} = \frac{PQ+QR}{QR}[/tex]
[tex] \therefore \frac{3}{x} = \frac{1\frac{1}{3} +2 \frac{2}{3}}{2 \frac{2}{3}}[/tex]
[tex] \therefore \frac{3}{x} = \frac{\frac{4}{3} + \frac{8}{3}}{\frac{8}{3}}[/tex]
[tex] \therefore \frac{3}{x} = \frac{\frac{12}{3}}{\frac{8}{3}}[/tex]
[tex] \therefore \frac{3}{x} = \frac{12}{8}[/tex]
[tex] \therefore x = \frac{8\times 3}{12}[/tex]
[tex] \therefore x = \frac{24}{12}[/tex]
[tex] \therefore x =2[/tex]
The floor of a storage unit is 6 ft long and 8 feet wide what is the distance between two opposite corners of the floor
Answers
Answer:
10 ft
Step-by-step explanation:
Use theorem pythagoras
Length = x
[tex] {x}^{2} = 8 {}^{2} + {6}^{2} \\ x = - 10 \\ x = 10[/tex]
the answer is 10 because length can't be in negative number
1) A population of bees is increasing at a rate of 8% per week. If
the population had an original size of 250 bees. Then how many
bees will there be after 10 days? (state equation)
Answers
Answer:
≈387,7
Step-by-step explanation:
I hope it's right. Sorry if it's not right.
A customer at Lost Pastores placed an order for 3 burritos which was priced at x amount of dollars each. He also ordered a plate of corn tacos for $12.95. His total bill was $32.46.as
Answers
Answer:
3x +12.95 = 32.46
Step-by-step explanation:
3 burritos plus x + 12.95 = $32.46
Answer:
i don't know lololololol
Step-by-step explanation:
atomic structure escape room level 2 (HELP ASAP!!) what does each one lead to
Answers
Answer:
2c 1d 3b 4a is this for your schoooooools
What is the length of PR?
Answers
Answer: The length of PR is 7 units.
Step-by-step explanation:The length of PR is 7 units.
Answer:
A.7
Step-by-step explanation:
What are the three ordered pairs that should be in the table of values y=2x-3
Answers
Answer:
(-2, -7), (0, -3), (2, 1)
Step-by-step explanation:
Equation is given as y = 2x - 3.
To complete the table, plug in each value of x into y = 2x - 3 to get their corresponding y-value.
✔️When x = -2:
y = 2(-2) - 3
y = -4 - 3
y = -7
✔️When x = 0:
y = 2(0) - 3
y = -3
✔️When x = 2:
y = 2(2) - 3
y = 4 - 3
y = 1
A sample of 26women is obtained, and their heights (in inches) and pulse rates (in beats per minute) are measured. The linear correlation coefficient is 0.208and the equation of the regression line is ModifyingAbove y with caret equals 17.8 plus 0.940 x,where x represents height. The mean of the 26heights is 63.5in and the mean of the 26pulse rates is 77.9beats per minute. Find the best predicted pulse rate of a woman who is 71in tall.
Answers
Answer:
The pulse rate is 84.54bpm
Step-by-step explanation:
Given
[tex]\^{} y = 17.8 + 0.940x[/tex]
Required
Find [tex]\^{}y[/tex] when [tex]x = 71[/tex]
Substitute 71 for x in: [tex]\^{} y = 17.8 + 0.940x[/tex]
[tex]\^{} y = 17.8 + 0.940 * 71[/tex]
[tex]\^{} y = 17.8 + 66.74[/tex]
[tex]\^{} y = 84.54[/tex]
The pulse rate is 84.54bpm
A kite was broken into two triangles of the same size and shape .
The area of each triangle is ? Square centimeters
20,40,80,160
The total are of the kite is ? Square centimeters
40,80,160,320
ANSWER_
The answers are 40 and 80
Answers
Answer:
hey the answer is 402
Step-by-step explanation:
Answer:
40 and 80
Step-by-step explanation:
got it on edgenuit y
Is the value 2 a solution to the equation p+9=11 ?
IF YOU ANSWER THIS YOU GET 50 POINTS! <3
Answers
Answer:
P=2
Step-by-step explanation:
Domain and range of graph need ASAP
Answers
Answer:
Domain: [tex]-6 \leq x \leq 3[/tex]
Range: [tex]-3 \leq x \leq 6[/tex]
Step-by-step explanation:
The domain is the set of real values which can be inputted into a function and produce a real output. In this case, the domain is the following: [tex]-6 \leq x \leq 3[/tex], because this is the set of real values for which the function will produce a real output.
The range is the set of real values which a function outputs when a value from the domain is entered into the function. This is the set of y-values that one can see on the graph, the possible y-values are in between (-3) and (6).
124,567 is closer to 100,000 than 200,000
Answers
Square Root Equation! HELP ME!!!!
Do not scam or false answers.
Answers
which of the following fractions is larger in these fractions 2/5, 1/3, 1/15
Answers
Answer:
2/5
Step-by-step explanation:
PLEASE HELP!!!! The problem is in the photo below.
Answers
Answer:
A is correct.
Step-by-step explanation:
Here, the x would represent the gallons per minute. The minutes are unknown, so it's just a variable. It can't be B either, because the addition sign would mean that the pool is being filled instead of drained.
What are the coordinates of each point after quadrilateral ABCD is reflected across the y-axis and then translated 2 units down? Drag numbers 1
complete the coordinates Numbers may be used once, more than once, or not at all
Answers
Answer:
[tex]A" = (3,2)\ \ B" = (-1,1)\ \ C" =(-3,4)\ \ D =(-1,4)[/tex]
Step-by-step explanation:
Given [Missing]
[tex]A = (-3,4)[/tex]
[tex]B = (1,3)[/tex]
[tex]C =(3,6)[/tex]
[tex]D =(1,6)[/tex]
The first transformation: reflection across the y-axis.
The rule is: [tex](x,y)==>(-x,y)[/tex]
So:
[tex]A = (-3,4)[/tex] ==>[tex]A' = (3,4)[/tex]
[tex]B = (1,3)[/tex] ==> [tex]B' = (-1,3)[/tex]
[tex]C =(3,6)[/tex] ==> [tex]C' = (-3.6)[/tex]
[tex]D =(1,6)[/tex] ==> [tex]D' = (-1,6)[/tex]
Translation 2 units down
The rule is: [tex](x,y)==>(x,y-2)[/tex]
So:
[tex]A' = (3,4)[/tex] ==> [tex]A" =(3,4-2) =(3,2)[/tex]
[tex]B' = (-1,3)[/tex] ==> [tex]B" = (-1,3-2) = (-1,1)[/tex]
[tex]C' = (-3.6)[/tex] ==> [tex]C" = (-3,6-2) = (-3,4)[/tex]
[tex]D' = (-1,6)[/tex] ==> [tex]D" =(-1,6-2) = (-1,4)[/tex]
Hence:
[tex]A" = (3,2)\ \ B" = (-1,1)\ \ C" =(-3,4)\ \ D =(-1,4)[/tex]
What is the slope of the slope of the line y=2x+7
Will give brainliest
Answers
i need more characters lol ahjkffhewqjfe
Is (x-4) a factor of x^3 +x^2 -16x-16x 3 +x 2 −16x−16 ?
Answers
Answer:
For x – 4 to be a factor, you must have x = 4 as a zero. Using this information, I'll do the synthetic division with x = 4 as the test zero on the left:
Step-by-step explanation:
What is the complement to an angle that measures (6x+15)°
Answers
Answer:
(75 - 6x)°
Step-by-step explanation:
Measure of complement of (6x+15)° = 90° - (6x+15)°
= (90 - 6x - 15)°
= (75 - 6x)°
To the nearest 1000, there are 18,000 people at a festival . Write down the minimum possible number of people at the festival
Answers
Answer:
17500
Step-by-step explanation:
17499 rounds down
17500 rounds up
The number of people is an illustration of approximation and estimation
The minimum possible number of people at the festival is 17500
The approximated number of people is:
People = 18000
Because 18000 represents people, it means that the population is a whole number
The smallest whole number that can be approximated to 18000 is 17500
i.e.
People = 17500
Hence, the minimum possible number of people at the festival is 17500
Read more about approximation and estimation at:
https://brainly.com/question/24586443
Math "The odd integers between 2 and 15".
O [2, 3, 5, 7, 9, 11, 13, 15)
O [3, 5, 7, 9, 11, 13)
O (3, 57, 9, 11, 13, 15)
NEXT QUESTION
ASK FOR HELP
Answers
3 , 5 , 7 , 9 , 11 , 13
Based on 2017 sales, the six top-selling compact cars are the Honda Civic, Toyota Corolla, Nissan Sentra, Hyundai Elantra, Chevrolet Cruze, and Ford Focus (New York Daily News). The 2017 market shares are Honda Civic 20%, Toyota Corolla 17%, Nissan Sentra 12%, Hyundai Elantra 10%, Chevrolet Cruze 10%, and Ford Focus 8%, with other small car models comprising the remaining 23%. A sample of 400 compact car sales in Chicago showed the following number of vehicles sold.
Honda Civic 98
Toyota Corolla 72
Nissan Sentra 54
Hyundai Elantra 44
Chevrolet Cruze 42
Ford Focus 25
Others 65
Required:
Use a goodness of fit test to determine whether the sample data indicate that the market shares for cars in Chicago are different than the market shares suggested by nationwide 2017 sales. Using α= 0.05 level of significance, what is the p-value?
Answers
Answer:
1. p value = 0.0203
2. We conclude that the market share for cars are different from what was suggested by the nation wde sales in 2017
Step-by-step explanation:
first we solve for the chisquare of this data.
from the attachment i have uploaded, a table of the ch square that i calculate gave:
Chisquare = 14.99
n = 7
degree of freedom = 7-1 = 6
we formulate hypothesis
H0; no diference in market share
H1: there is difference in market share
alpha = 0.05
we find the p value using the excel formula
CHIDIST(14.99, 6)
p value = 0.0203
the p value lies between 0.01 and 0.025
so we reject null and conclude that market share for for cars are different from what is suggested by nationwide sales in 2017
please help. will mark brainliest
Answers
Answer: AC = A'C'
Then you can use the hypotenuse leg theorem to say that the two triangles are similar
Step-by-step explanation:
Step-by-step explanation:
the measure of side AC = 53.33
18/30 = 32/x
18x = 960
x = 53.33
Milan has a total of 51 nickels and dimes worth $4.95. How many of each coin does she have?
Answers
Answer: 75 coins total, 51 nickels and 24 dimes.
Step-by-step explanation:
A car purchased for $20,000 depreciates annually at a rate of 8%. What will be the approximate value of the car in the 10th year?
Answers
Answer:
$4000
Step-by-step explanation:
20000x0.08=1600
1600x10=16000
20000-16000=4000
Answer:
$8687.76
Step-by-step explanation:
100-8=92
20,000*0.92=18400 (This is after one year)
20,000*0.92^10= 8687.7690 (After 10 years)
which rule descibes the pattern?
Answers
Answer:
-1/2
Step-by-step explanation:
I think not 100% sure tho
Answer:
“multiply by 2 and then subtract 1.
Step-by-step explanation: