Answer:
65degrees
Step-by-step explanation:
In rectangle SORE below, m∠REO = (x + 50)° and m∠SEO = (3x - 20)°, what is the measure of m∠RSE?
From the rectangle SORE, m<SEO + m<RSE = 90
Substitute the given angles
x+50+3x-20 = 90
4x + 30 = 90
4x = 90-30
4x = 60
x = 60/4
x = 15
Get m<RSE
mRSE = m<REO = x+50
m<RSE = 15+50 = 65degrees
Amy is building a cardboard box in the shape of a triangular prism. The dimensions of the box are shown in the diagram. 2 cm 1.5 cm What is the total surface area of this box in square centimeters? 33 cm? 37.5 cm2 A B31.5 cm2 D 7.5 cm? Please help
Answer:
37.5
Step-by-step explanation:
you have to multiply all the dimensions
Answer:
TSA=Ph+2B
(2+1.5+2.5)5+2(1/2*1.5*2)
6(5)+2(1.5)
30+3
33
Step-by-step explanation:
Please help answer this
Identify the y-intercept of the graph below
Answer:
I want to say it's A
Step-by-step explanation:
the y-intercept is where the line crosses through the y-axis.
80 POINTS PLEASE HELP!!!
Consider functions f and g.
f(x) = log(x - 1)
g(x) = 1/3x^2 - 4
Which statement is true about the solutions of the equation f(x) = g(x)?
Answer:[tex]g (f (x)) = 3^{2} + 24[/tex]
Step-by-step explanation:
The true about the solutions of the equation f(x) = g(x) is
The solution of the graph where the graph of function intersect at
x = 1 and x = 3.642.
What is Function?A mathematical phrase, rule, or law that establishes the link between an independent variable and a dependent variable (the dependent variable).
We have function,
f(x) = log(x - 1)
g(x) = 1/3x² - 4
As, f(x) = g(x)
log (x-1) = 1/3 x² - 4
Now, putting x= 1, x= 3.642, x= 4.464, x= 4 , x= 0.422 into the formula for the observation.
So, the solution of the graph where the graph of function intersect at
x = 1 and x = 3.642
Learn more about Function here:
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Find the area of a circle with a diameter of 16.
Either enter an exact answer in terms of or use 3.14 for at
and enter your answer as a decimal.
units?
Help me
Answer:
A=200.96.
Step-by-step explanation:
A=3.14×16/2^2.
A=3.14×8^2.
A=3.14×64.
A=200.96 or A=201.
help me,,.,,.,.,,,,,..,,,,..
Answer:
90
Step-by-step explanation:
that's a right angle
Plzz help me I am timed plzz!
Answer:
B) 2
Step-by-step explanation:
6/3 = 2
3/3 = 1
6÷3 = 2
Hopefully this helps :3 Sorry if wrong :( Plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3
-Bee~
What is the equation of line d and c? What is the slope of line d and line c?
Answer:
Step-by-step explanation:
I understand why this was kind tough
the slope of line d is infinite and the slope of line c is zero
so line c 's equation looks like y = 3 ... it's kinda confusing but the line is always 3 so you could pick any x value and y = 3 still. the equation y=3 doesn't rely on x at all to answer it. But x is part of the "frame work" that is implied.
line d is x = 3 , again , y is part of the "frame work" and implied that y doesn't matter in this equations, you always have x = 3 .. or a vertical line , btw. line d does NOT pass the vertical line test , and therefore isn't a function, so the question is wrong, that d will have an equation, b/c there is an implication that d is a function when you say "what is the equation to line d" that is must be a function. But in this case it's not. hm :/ food for thought
Need help plz and thank u
Write a function called Radians_To_Degrees which will convert an angle from Radians to Degrees. In your Lesson 06 script: a. convert 1.62 radians to degrees b. Convert pi/9 radians to degrees
Answer:
a) 92.9 degrees
b) 20 degrees
Step-by-step explanation:
Using the conversion factor;
180 degrees = pi radians
For 1.62 radians;
1.62 radians = x
pi radians = 180 degrees
Divide both expressions;
1.62/pi = x/180
pi * x = 1.62 * 180
pi * x = 291.6
x = 291.6/pi
x = 291.6/3.14
x = 92.9 degrees
Hence 1.62 radians is equivalent to 92.9 degrees
b) Recall that
pi radians = 180 degrees
pi/9 rad = y
Cross multiply
y * pi = 180pi/9
y = 180/9
y = 20 degrees
Hence pi/9 radians is equivalent to 20 degrees
If a central intercepts an arc of 6.3 cm. in a circle whose
radius is 4.2 cm., find the measure of the central in radians.
3 over 2 +2over3 what does it equal
Answer:
13/6 Which you can divide and get a decimal instead (Decimal: 2.166667)
Step-by-step explanation:
Please help if you can
Answer:
quadrant three I think.
Answer:
quadrant IV
Step-by-step explanation:
(x,y) the x line has positive numbers while the y has negative numbers
The length of a cell phone is 1.41.4 inches and the width is 4.44.4 inches. The company making the cell phone wants to make a new version whose length will be 1.751.75 inches. Assuming the side lengths in the new phone are proportional to the old phone, what will be the width of the new phone?
Answer:
Step-by-step explanation:
Answer:
5.573.75
Step-by-step explanation:
because math
A local hamburger shop sold a combined total of 390 hamburgers and cheeseburgers on Wednesday. There were 60 fewer cheeseburgers sold than hamburgers. How many hamburgers were sold on Wednesday?
Answer:
225 hamburgers
Step-by-step explanation:
system of equations:
h + c = 390
c = h-60
use Substitution:
h + h - 60 = 390
2h - 60 = 390
2h = 450
h = 225
Pls help I’ll brainlest
Do question 10
Show your work
Answer:
Step-by-step explanation:
285 - 60= 225
225/45= 5
5 weekdays
6. Missing data, nonrandom samples, and outlying observations True or False: If the data for an observation on either the dependent variable or one of the independent variables are missing at random, then the size of the random sample available from the population must be reduced, which reduces the estimator's precision and introduces a bias.
Answer:
False
Step-by-step explanation:
The answer to this question is false because the missing observation does not introduce bias to the estimator. But missing observations reduces the size of the sample that is available from the given population. Therefore reducing the precision of the estimators.
In conclusion, no bias is introduced because of missing observations so the answer is false.
Find the missing angle
bro what angle I don't see one here so how we are able to solve this problem
MULTIPLY
Answer
Answer
Answer
Answer
Answer
Answer: i cant see all of them
Step-by-step explanation:
Solve for x
Please help me
9514 1404 393
Answer:
x = 8.2
Step-by-step explanation:
As indicated on the supplied diagram, the measure of arc GH is ...
GH = 360° -83° -115° = 162°
The inscribed angle at F is half this measure, so we have ...
(10x -1)° = 162°/2
10x = 82 . . . . . . . . add 1 and simplify
x = 8.2 . . . . . . . . . divide by 10
Ana wants to place 11 plants on 3 shelves each shelf holds the same number of plants there are two plants that do not fit model this situation with an equation and a hanger diagram of p is a number of plants that fit on each shelf
Answer:
31
Step-by-step explanation:
The linear equaiton is 3p + 2 = 11.Then the number of plants that fit on each shelf will be 3.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
Ana wants to place 11 plants on 3 shelves each shelf holds the same number of plants there are two plants that do not fit.
Let 'p' be the number of plants in a row. Then the equation is given as,
3p + 2 = 11
Simplify the equation, then we have
3p + 2 = 11
3p = 11 - 2
3p = 9
p = 9 / 3
p = 3
The linear equaiton is 3p + 2 = 11.Then the number of plants that fit on each shelf will be 3.
More about the solution of the equation link is given below.
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Pls help this is due today! A circular plate has a circumference of 14p in. Find the area of the same plate.
Answer:
area = 153.86 in²
Step-by-step explanation:
Diameter = 14π / π = 14
radius = 1/2(14) = 7
area = π7² = 153.86 in²
What is the measure of
Answer:
B
Step-by-step explanation:
180°= straight line
180°-42°=138
round to the nearest 10th
Almost done. I need help with this part
Answer:
[tex]\%Percent = 14.3\%[/tex]
Step-by-step explanation:
Required
15 is what percentage of 105
To do this, simply divide 15 by 105 multiplied by 100%.
So, we have:
[tex]\%Percent = \frac{15}{105} * 100\%[/tex]
[tex]\%Percent = \frac{15*100}{105}\%[/tex]
[tex]\%Percent = \frac{1500}{105}\%[/tex]
[tex]\%Percent = 14.3\%[/tex] --- approximated
A newspaper hires a polling company to determine the level of support in the county for raising property taxes in order to increase funding for local schools. The polling company calls phone numbers chosen at random from a phone number registry between the hours of 5 p.m. and 7 p.m. What are some potential sources of bias in this sampling method?
Some sources of bias may be:
The fact the company is calling in such a narrow time window. They need to expand their hours of operation. Not everyone has a listed phone number, and many cell phones are unlisted, so that leaves many people out of the picture. The sample is likely not representative of the population. The company may be better off doing email or social media surveying methods. Many people often get annoyed at unsolicited phone calls, so they may not be willing to do a survey. Those that do answer the survey may show off volunteer response bias which is often present in political surveys.Answer:
There are three correct answers:
Step-by-step explanation:
The method excludes people who have unregistered numbers.
The method excludes people who work between 5:00 P.M. and 7:00 P.M.
The method excludes people who do not have phones.
CL 6-153
In 2012 the average cost for a new midsized car was about
$31,000. New car prices tend to go up about 2% every year.
a. What is the multiplier for this situation?
b. If this trend continues, what will the cost be in 4 years?
c. Write an equation to calculate the cost in n years. What does
each of the factors in your equation represent?
Answer:
A) The multiplier for this situation is 0.02.
B) The cost in 4 years will be $ 33,555.39.
C) 31,000 x 1.02 ^ N = X
Step-by-step explanation:
Since in 2012 the average cost for a new midsized car was about $ 31,000, and new car prices tend to go up about 2% every year, to determine what is the multiplier for this situation, what will the cost be in 4 years if this trend continues and to write an equation to calculate the cost in n years the following calculations must be performed:
A)
31,000 x 2/100 = X
31,000 x 0.02 = X
Thus, the multiplier for this situation is 0.02.
B)
31,000 x 1.02 ^ 4 = X
33,555.39 = X
Thus, the cost in 4 years will be $ 33,555.39.
C)
31,000 x 1.02 ^ N = X
Here, N represents the number of years over which the price increase will be calculated, and X represents the price after that number of years.
Bailey wanted a new pair of shoes. She put the $142 cost on her
credit card. Because Bailey has been irresponsible with her credit,
the credit card company charges her 22% annual interest. Figure
Bailey's balance after 180 days, assuming she made no payments.
Answer:
Bailey's balance after 180 days is $ 157.39.
Step-by-step explanation:
Since Bailey wanted a new pair of shoes, and she put the $ 142 cost on her credit card, but because Bailey has been irresponsible with her credit, the credit card company charges her 22% annual interest, for figure Bailey's balance after 180 days, assuming she made no payments, the following calculation must be made:
365 = 100
180 = X
180 x 100/365 = X
18,000 / 365 = X
49.31 = X
22 x 0.4931 = 10.84
142 x 1.1084 = X
157.39 = X
Thus, Bailey's balance after 180 days is $ 157.39.
The FDA regulates that fresh Albacore tuna fish that is consumed is allowed to contain 0.82 ppm of mercury or less. A laboratory is estimating the amount of mercury in tuna fish for a new company and needs to have a margin of error within 0.023 ppm of mercury with 97% confidence. Assume the population standard deviation is 0.143 ppm of mercury. What sample size is needed
Answer:
A sample size of 183 is needed.
Step-by-step explanation:
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1 - 0.97}{2} = 0.015[/tex]
Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].
That is z with a pvalue of [tex]1 - 0.015 = 0.985[/tex], so Z = 2.17.
Now, find the margin of error M as such
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
Margin of error within 0.023 ppm of mercury with 97% confidence. What sample size is needed?
We have to find n for which [tex]M = 0.023[/tex]. We have that [tex]\sigma = 0.143[/tex]. So
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
[tex]0.023 = 2.17\frac{0.143}{\sqrt{n}}[/tex]
[tex]0.023\sqrt{n} = 2.17*0.143[/tex]
[tex]\sqrt{n} = \frac{2.17*0.143}{0.023}[/tex]
[tex](\sqrt{n})^2 = (\frac{2.17*0.143}{0.023})^2[/tex]
[tex]n = 182.02[/tex]
We have to round up(182 is not quite in the desired margin of error), so a sample size of 183 is needed.
Calculate the area of the figure in square centimeters.
Answer:
20.283
Step-by-step explanation:
1) the formula of the required Area is:
A=A₁+A₂, where A₁ - area of semicircle, A₂ - area of rectangular;
2) the radius of the semicircle is: r=(7-2-1)/2=2 cm, then the area A₁:
A₁=0.5*π*r²=2π≈6.283 (cm²);
3) A₂=7*2=14 (cm²);
4) finally, A=A₁+A₂=6.283+14=20.283 (cm²)