I need this please help me
9514 1404 393
Answer:
B, C, D
Step-by-step explanation:
In this diagram, all of the acute angles are congruent. Those are angles 2, 4, 6, and 75°. Similarly, all of the obtuse angles are congruent. They are supplementary to the acute angles, so we have angles 1, 3, (x-15)°, and 5 all have measure 180° -75° = 105°.
This means x = 105° +15° = 120°.
The true statements are ...
B. angle 2 = angle 6
C. x = 120°
D. angle 1 and angle 6 are supplementary
find 3 rational numbers between 1/3 and 1/2
A 95% confidence interval for a population mean is computed from a sample of size 400. Another 95% confidence interval will be computed from a sample of size 100 drawn from the same population. Choose the best answer to fill in the blank: The interval from the sample of size 400 will be approximately _____ as the interval from the sample of size 100.
Answer:
A 95% confidence interval for a population mean is computed from a sample of size 400. Another 95% confidence interval will be computed from a sample of size 100 drawn from the same population. Choose the best answer to fill in the blank: The interval from the sample of size 400 will be approximately _______as the interval from the sample of size 100.
2x2 - 32 = 0 solve in factored form
Answer:
2(x - 4)(x + 4) = 0
x = {-4, 4}
Step-by-step explanation:
2x² - 32 = 0
factor out 2
2(x² - 16) = 0
This is a difference of squares
Factor
2(x - 4)(x + 4) = 0
x = {-4, 4}
Answer:
Step-by-step explanation:
Hope it helps you!!
1. The shape shown below is dilated by a scale factor of 2.6. It is in the attachment that was included.
(a) Calculate the length of each side of the dilated image.
(b) Draw the new image and label it .
Answer:
L' = 26cm
W' = 39cm
Step-by-step explanation:
a) Given the dimension of the shape;
length L = 10cm
Width W = 15cm
After dilating by a scale factor os 2.6
New length L' = 2.6(10) = 26cm
New width = W' = 2.6(15) = 39cm
Hence the length of each sides of the dilated image are 26cm and 39cm
b) The new image will be similar to the given image but of with the resulting length gotten in (a).
Find the mean ,median and mode of the weights of people shown
Answer:
[tex](a)\ Mean = 80kg[/tex]
[tex](b)\ Median = 76kg[/tex]
[tex](c)\ Mode = 61kg[/tex]
Step-by-step explanation:
Given
[tex]Data:105kg, 53kg ,76kg ,91kg ,120kg ,61kg ,55kg ,98kg ,61kg[/tex]
[tex]n = 9[/tex]
Solving (a): The mean
This is calculated using:
[tex]\bar x = \frac{\sum x}{n}[/tex]
[tex]\bar x = \frac{105kg+53kg +76kg +91kg +120kg +61kg +55kg +98kg +61kg}{9}[/tex]
[tex]\bar x = \frac{720kg}{9}[/tex]
[tex]\bar x = 80kg[/tex]
Hence:
[tex]Mean = 80kg[/tex]
Solving (b): The median
[tex]Data:105kg, 53kg ,76kg ,91kg ,120kg ,61kg ,55kg ,98kg ,61kg[/tex]
Arrange in ascending order
[tex]Data: 53kg ,55kg, 61kg ,61kg,76kg ,91kg ,98kg , 105kg,120kg[/tex]
[tex]n = 9[/tex]
So, the position of the median element is:
[tex]Median = \frac{n+1}{2}th[/tex]
[tex]Median = \frac{9+1}{2}th[/tex]
[tex]Median = \frac{10}{2}th[/tex]
[tex]Median = 5th[/tex]
The 5th element is 76kg
Hence:
[tex]Median = 76kg[/tex]
Solving (c): The mode
In the given data
[tex]Mode = 61kg[/tex]
Because it has a frequency of 2 (the highest), others have 1
Someone please help me thank you
P = 20.6, I hope this helps you!!!!!
Using the sine rule, a/sin(A) = b/sin(B) = c/sin(C)
But we have to have at least two angles and two lengths to equate it to one another. We could find the third angle in this triangle to use as our second angle, but we do not know the value of x, so we have to find the second length.
To do that, we use Pythagoras theorem;
a^2 = b^2 + c^2
a^2 = 7^2 + 5^2
a^2 = 49 + 25
a^2 = 74
square root both sides to get rid of the square on a:
a = sqrt(74)
a ~ 8.60
Now we can apply our sine rule. Note that the lengths and angles are the ones opposite each other. For example, the corresponding angle of 8.60 is 90° and the one for 5 is x°.
So,
8.60/sin(90) = 5/sin(x)
8.60/1 = 5/sin(x), since sin(90) = 1
Make sin(x) the subject,
sin(x) = 5/8.60
sin(x) = 0.5814
x = sin^-1(0.5814)
x ~ 35.6°
a line segment with endpoints A = (3, 0) and B = (7,0). Then, plot all points
C = (x, y) such that the triangle ABC has an area of 12 square units.
What geometric formula and theorem are needed to solve this problem?
Answer:
C(0,6)
Step-by-step explanation:
1) find the length of the base of the triangle
AB = 7-3 = 4
2) find the the height of the triangle
A = (base x height)/2
A x 2 = base x height
height = (A x 2)/base
height = (12 x 2)/4 = 6
3) find the equation of the line that passes threw the points AB
the two points have the same y so the equation of the line is
y = 0
4) use the formula of the distance between a point and a line to find C
|ax+by+c|/√a^2 + b^2 = distance
x = 0
y = 6
C (0,6)
Albert has 10 red beads, and he has 5 fewer yellow beads than red beads. Albert also has 4
more green beads than red beads. How many beads does Albert have in all?
beads
HELPPP FACTUAL ANSWER
Answer:
29 beads
Step-by-step explanation:
Red beads: 10
Green beads: 10 - 5 = 5
Yellow beads: 10 + 4 = 14
Add, 10 + 5 + 14 = 29
Albert has 29 total beads
Have a wonderful day! :)
Need help lol. last day to turn this in and failing by 1 point please help
Three years ago the sum of the ages of father and his son was
48 years and three years hence father's age will be three times
that of his son. Find the present ages of the father and his son.
Answer:
The father is 42 years old and the son is 12 years old.
Step-by-step explanation:
Since three years ago the sum of the ages of father and his son was 48 years, and three years hence father's age will be three times that of his are his, to find the present ages of the father and his are his, the following calculations must be performed:
F + S = 48
F + 6 + S + 6 = 3S
34 + 14 = 48 /// 34 + 6 = 40 --- 14 + 6 = 20 (x 3 = 60)
38 + 10 = 48 /// 38 + 6 = 44 --- 10 + 6 = 16 (x 3 = 48)
40 + 8 = 48 /// 40 + 6 = 46 --- 8 + 6 = 14 (x 3 = 42)
39 + 9 = 48 /// 39 + 6 = 45 --- 9 + 6 = 15 (x 3 = 45)
39 + 3 = 42
9 + 3 = 12
Therefore, the father is 42 years old and the son is 12 years old.
(5p^3 - 3) +(2p^2-3p^3)=
Answer:
4p^3-3 jejeieooejejenjekeoeoeo
A teaspoon of salt has a mass of 6 grams what is its mass in milligrams
Answer:
6000 milligrams
Step-by-step explanation:
trust
HELP pls
which of the above solids has the larger surface area
Answer:
B. solid B
Step-by-step explanation:
solid a surface area: 150
solid b surface area: 184
Answer:
mmmmm
Step-by-step explanation:
The submarine is 217 feet below sea level. Identify the integer
that represent the opposite of its location and its absolute value.
Answer:
okay
Step-by-step explanation:
PLEASE HELP MATH QUESTION 99 POINTS HELP ASAP PLEASE
LOOK AT LINKED IMAGE FOR QUESTION.
Answer:
Graph A. not a function
Graph B. is a function
Mapping A. is a function
Mapping B. not a function
Table A. not a function
Table B. is a function
Answer:
a graph. not a function
b graph.function
a table. not a function
b table. function
maaping a. function
mapping b. not a function
Step-by-step explanatio n:
mark me brainelst plz
how many odd integers are between −20/3 and 51/4
Answer:
-20/3 = -6.666
51/4 = 12.some
Odd integers between -6.66 to 12..
= -5,-3,-1,1,3,5,7,9,11
:)
The odd integers in between−20/3 and 51/4 are -5,-3,-1,1,3,5,7,9,11 so it is nine.
What is an integer?An integer is a whole number irrespective of the sign that the integer is all whole numbers that are going from 0 to infinite or 0 to minus infinite.
Integer ; ....-2 , -1 , 0 , 1 , 2 , .....
Integers are non-decimal numbers and all integers are rational numbers.
Given the two numbers,
−20/3 = -6.67
51/4 = 12.75
So integers in between −20/3 and 51/4 are ;
-5,-4,-3,-2,-1,1,2,3,4,5,6,7,8,9,10,11,12
Now odd integers out of them are;
-5,-3,-1,1,3,5,7,9,11
Hence "The odd integers in between−20/3 and 51/4 are -5,-3,-1,1,3,5,7,9,11 so it is nine".
To learn more about integers,
brainly.com/question/1768254
#SPJ2
A cylinder has a height of 3 meters and a radius of 5 meters. What is its volume? Use ≈ 3.14 and round your answer to the nearest hundredth.
Answer:
141.37 m^2
Step-by-step explanation:
V = (pi)r^2h
V = (3.14)(3 m)^2(5 m)
V = 141.37 m^2
How can you get a good credit score?
Pay credit card and loan payments late.
Don't apply for credit.
Pay your loan payments on time, every time.
Go above your credit limit.
Answer:
Pay your loan payments on time, every time.
Step-by-step explanation:
The other answers either hurt or have no effect on your credit score.
The option 2 and 3 is right get a good credit score. Avoid the options 1 and 4.
To get a good credit score, you should follow these steps:
Pay your loan payments on time, every time: Timely payments are one of the most crucial factors in building a good credit score. Consistently paying your bills and loans on or before the due date shows lenders that you are a responsible borrower.
Don't apply for credit excessively: Each time you apply for new credit, a hard inquiry is made on your credit report, which can temporarily lower your score. Applying for multiple credit accounts in a short period may signal financial instability to lenders.
Avoid options 1 and 4:
Paying credit card and loan payments late: Late payments negatively impact your credit score and show a lack of responsibility in managing credit.
Going above your credit limit: Maxing out your credit cards or going above the credit limit can harm your credit score as it indicates a higher risk of defaulting on your debts.
Hence, the option 2 and 3 is right get a good credit score. Avoid the options 1 and 4.
Learn more about Loan here:
https://brainly.com/question/11794123
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Round to the nearest tenth
Answer:
22.5
Step-by-step explanation:
13 square root 3 equals that
VX
Which point is located at (0.25,-05)?
X
point A
point C
point R
Answer:
C
Step-by-step explanation:
The scale on both the x and y axes has 1 unit divide into 4 parts.
Then 1 part is one quarter of 1 , that is 0.25 and 2 parts = 0.5
The point with coordinates (0.25, - 0.5 ) is point C
The perimeter of the polygon above
Using the extreme value theorem, what are the
minimum and maximum values of f(x)?
O minimum value = 1; maximum value = 6
O minimum value = 2; maximum value = 6
minimum value = -1; maximum value = 3
O minimum value = -2: maximum value = 3
Answer:
A
Step-by-step explanation:
Edge
The option A, O minimum value = 1; maximum value = 6 is correct.
We have given that,
Using the extreme value theorem, what are the minimum and maximum values of f(x).
What is the extreme value theorem?Extreme Value Theorem An important application of critical points is in determining possible maximum and minimum values of a function on certain intervals.
Therefore, The option A, O minimum value = 1; maximum value = 6 is correct.
To learn more about the extream value theorem visit:
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One criticism of reading comprehension tests is that while they may measure reading comprehension, they also measure other factors not related to reading comprehension. A reading comprehension (RC) test on a major college entrance exam provides short English prose passages, and the examinees answer a set of multiple-choice items about the passage. To see if particular items measure something other than RC, investigators gave the RC test without the reading passages to a random sample of psychology students. The investigators reasoned that if questions were measuring knowledge or memory rather than just RC, students would answer questions at a higher rate than chance (20%, since there were 5 choices for each question).
Suppose that on one question, 30 out of 100 examinees answered the question correctly. Is this sufficient evidence that students are using more than just reading comprehension to answer this question? Test the relevant hypothesis using alpha = .05
Answer:
The p-value of the test is 0.0062 < 0.05, which means that this is sufficient evidence that students are using more than just reading comprehension to answer this question
Step-by-step explanation:
The investigators reasoned that if questions were measuring knowledge or memory rather than just RC, students would answer questions at a higher rate than chance (20%, since there were 5 choices for each question).
This means that at the null hypothesis, we test that the proportion is the probability of answering correctly by change, that is 20%. So
[tex]H_0: p = 0.2[/tex]
At the alternate hypothesis, we test that the proportion is above 20%, that is:
[tex]H_a: p > 0.2[/tex]
The test statistic is:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
0.2 is tested at the null hypothesis:
This means that [tex]\mu = 0.2, \sigma = \sqrt{0.2*0.8} = 0.4[/tex]
Suppose that on one question, 30 out of 100 examinees answered the question correctly.
This means that [tex]n = 100, X = \frac{30}{100} = 0.3[/tex]
Test statistic:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]z = \frac{0.3 - 0.2}{\frac{0.4}{\sqrt{100}}}[/tex]
[tex]z = 2.5[/tex]
P-value of the test and decision:
The p-value of the test is the probability of finding a sample proportion above 0.3, which is 1 subtracted by the p-value of z = 2.5.
Looking at the z-table, z = 2.5 has a p-value of 0.9938
1 - 0.9938 = 0.0062
The p-value of the test is 0.0062 < 0.05, which means that this is sufficient evidence that students are using more than just reading comprehension to answer this question
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Carmen has a piece of wood that is inches in length.
Lucia has a piece of wood that is - inches longer than
Carmen's piece of wood.
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Question 4
10
Answer:
um what
Step-by-step explanation:
What is the linear function equation that best fits the data set?
ŷ = x – 2
ŷ = 4x – 11
ŷ = 2x – 2
ŷ = 4x – 2
Answer:
Option 3
Step-by-step explanation:
Given data set is,
{(1.5, 1), (2.5, 3), (3, 3), (3, 5), (3.5, 5), (4.5, 7), (5, 7), (5, 9), (5.5, 9), (6.5, 11), (7.5, 13)}
By using linear regression calculator,
Equation of the linear function will be,
y = 2x - 2
Therefore, Option 3 will be the correct option.
Gracie had a round slice of watermelon she and her sister shared the slice equally how much did each girl eat?
What is the area of this
irregular shape?
.6 ft
square feet
3 ft
8 ft
16 ft
Answer:
Step-by-step explanation:
area=16×8+1/2×3×6
=128+9
=137 sq. ft.
Find the value of x.
Answer:
143
Step-by-step explanation:
Which ordered pair is a solution of the linear system: x+2y=-8 and
-4x+y=5? *
O A. (-2-3)
OB.(2-3)
C. (-3,-2)
D. (-1,0)
HELP ASAPPPPPP
Answer:
option A
A(-2,-3)
Step-by-step explanation:
make y subject of formula
x+2y=-8
2y=-8-x
y=(-8-x)/2
y=-4-x/2
when x=-2
y=-4-(-2)/2
=-4-(-1)
=-4+1
=-3
(-2,-3) is an ordered pair
