Answer:
it has 1 solutions and its x = 3
Step-by-step explanation:
Answer:
[tex]x=3[/tex], [tex]x=3[/tex]
Step-by-step explanation:
[tex]x^{2} -6x+9=0\\x^{2} -3x-3x+9=0\\x(x-3)-3(x-3)=0\\x-3=0 , x-3=0\\x=3,x=3[/tex]
Although we get the sdame answer twice we can also say that we get 2 answers.
Your Statistics group wanted to determine what percent of Dulles High School senior like pineapple on their pizza. You randomly sampled 60 seniors and 36 responded that pineapple is one of their favorite topping. You wanted to construct a 90% confidence interval to report your findings. (Use your Confidence Interval Notes and the assigned videos to answer the questions) A margin of error (ME) tells you how many percentage points your results will differ from the true proportion of the population. For example, a 95% confidence interval with a 4 percent margin of error means that your sample proportion will be within 4 percentage points of the true proportion value 95% of the time. Calculate the ME of your study.
Answer:
The answer is "0.1040"
Step-by-step explanation:
Margin of error[tex]=Z_{\frac{\alpha}{2}} \sqrt{\frac{\hat{p}(1-\hat{p})}{n}}\\\\[/tex]
[tex]=Z_{\frac{0.10}{2}} \sqrt{\frac{\frac{36}{60}(1-\frac{36}{60})}{60}}\\\\=1.645 \times 0.0632\\\\=0.1040\\\\[/tex]
2.77777777778 simplified
Answer:
Step-by-step explanation:
Answer is in the pic I promise nothing bad.
2+2
I really struggle with this one plz help
Answer:
4
Step-by-step explanation:
lol ur kidding . of not u should work really hard :)
can you help me with this please
Answer:
x = Adjacent B). Tangent
Step-by-step explanation:
x = Adjacent
B). Tangent
Answer:
see explanation
Step-by-step explanation:
In relation to the angle 37°
The side opposite is labelled 14 → A
The adjacent side is labelled x → B
Using the trig function tangent would enable x to be found, that is
tan37° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{14}{x}[/tex]
f(n) = 2n− 5; Find f(−8)
Answer:
Step-by-step explanation:
Putting value of n = - 8 in the equation
F(n) = 2n− 5
F(-8) = 2(-8) - 5
= - 16 - 5 = - 21
Will name the brainliest
Answer:
A = 53° (Rounded to the nearest whole number)
Step-by-step explanation:
Since the angle needs to be found out and it's adjacent as well as hypotenuse is given we will used the Cosine ratio;
Cos(A) = [tex]\frac{26}{43}[/tex]
A = Cos⁻¹ ([tex]\frac{26}{43}[/tex])
A = 52.79 or 53
Hope this helps!
-59 Points!-
Below, the two-way table is given for a class of students.
^^^^^ (photo attached)
If a student is selected at random, find the
probability the student is a senior given that it's
female. Round to the nearest whole percent.
[?]%
Answer:
Solution given:
total female [T]=3+4+6+3=16
n[senior female]=3.
probability the student is a senior given that it's
female:[tex] \frac{n[senior female]}{total [T]} [/tex]
:[tex] \frac{3}{16} [/tex]
:[tex] \frac{3}{16} [/tex] is a probability.
Now percentage::[tex] \frac{3}{16}*100% [/tex]=18.75=19%
Answer:
18.75%. Rounding up: 19%
Step-by-step explanation:
From the table : Total Females = 3+4+6+3 = 16
Number of female seniors = 3
If a student is selected at random find the probability the student is a senior given that it's a female:
P(Female | senior) = number of female seniors / total female = 3/16 = 0.1875
In percent, 3/16 * 100 = 0.1875 * 100 = 18.75%
the probability the student is a senior given that it's a female. = 18.75%, which round to nearest whole percent is 19%.
4.
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Answer:
B 84 cm^2 is the surface area of tbe prism
Step-by-step explanation:
A fire department's ladder is 110 feet long. A firefighter is trying to reach the top of a 100 foot building by leaning the ladder against the building. What is the angle of elevation for the rescue ladder?
Answer:
sin-¹(10/11)
Step-by-step explanation:
The height of the building is 100 ft and the ladder is 110ft long .We can imagine this situation as a right angled ∆. For figure refer to the attachment .
We can use ratio sine here. Let the angle of elevation be theta.In ∆ ABC :-
=> sinθ = p/h
=> sinθ = 100ft / 110 ft
=> sinθ = 10/11
=> θ = sin -¹ ( 10/11) .
Hence the angle of elevation is sin -¹ ( 10/11).The verticles of a polygon p(0,4), q(5,4), r(5.-3) and s(0,-3). What are the perimeters of the polygon
Answer:
Following are the responses to the given question:
Perimeter of polygon:
[tex]PQ = 5\\\\RS = 5\\\\PR = QS=\sqrt{74} = 8.60\\\\QR = 7[/tex]
Step-by-step explanation:
In this question we calculate the perimeter of a polygon which can be defined as follows:
Using formula:
[tex]d = \sqrt{(x _2 - x_1)^2 + (y_2 - y_1)^2}[/tex]
When vertices are:
[tex]P ( 0 , 4) \\\\Q(5 , 4)[/tex]
[tex]x_1 = 0\\\\y_1 = 4\\\\x_2 = 5\\\\y_2 = 4\\\\PQ = \sqrt{( 5 - 0)^2 + ( 4 - 4)^2}\\\\= \sqrt{5^2 + 0^2}\\\\= \sqrt{25}\\\\= 5[/tex]
[tex]R( 5 , -3) and S ( 0 , -3)x_1 = 5y_1 = -3x_2 = 0\\y_2 = -3\\RS = \sqrt{ ( 0 - 5)^2 + ( -3 - (-3))^2}\\= \sqrt{( -5)^2 + ( -3 + 3)^2}\\= \sqrt{ 25 + 0}\\= \sqrt{25}\\= 5\\P( 0 , 4)\ and\ R (5 , -3)\\x_1 = 0\\y_1 = 4\\x_2 = 5\\y_2 = -3\\PR = \sqrt{( 5 - 0)^2 + ( -3 - 4)^2}\\= \sqrt{5^2 + (-7)^2}\\= \sqrt{ 25 + 49}\\= \sqrt{74}\\= 8.60\\[/tex]
[tex]Q ( 5 , 4) \ and \ S(0 ,-3)\\x_1 = 5\\y_1 = 4\\x_2 = 0\\y_2 = -3\\QS =\sqrt{ ( 0 - 5)^2 + ( -3 - 4)^2}\\= \sqrt{-5^2 + -7^2}\\= \sqrt{25 + 49}\\= \sqrt{74}\\= 8.60[/tex]
[tex]Q( 5,4\ and\ R(5 , -3)\\x_1 = 5\\y_1 = 4\\x_2 = 5\\y_2 = -3\\QR = \sqrt{(5 - 5)^2 + ( -3 - 4)^2}\\= \sqrt{0^2 + (-7)^2}\\= \sqrt{0 + 49}\\= \sqrt{49}\\= 7\\[/tex]
The fifth term of an arithmetic sequence is 96. Which rule could define the sequence?
Answer:
a+4d = 96
Step-by-step explanation:
Given: fifth term of an arithmetic sequence is 96
This means, a+4d = 96
Where, a is the first term in the series and d is the common difference,
Since, the terms is 5th therefore we can say that
a+4d = 96
a = 96-4d
Answer:
B) an = 18n + 6
Step-by-step explanation:
juan bicycles due north at 20mph eric starting at the same point at the same time bicycles due east at 15mph how.
far apart are they after 2 hours?
A. 10 miles
B. 35 miles
C. 50 miles
D. 70 miles
Dr. Nick has a large red fluffy dice hanging from the rear view mirror in his car. The length of one of the sides of that die is 6 inches. What is the total surface area of that die?
Answer:
Total surface area of Die = 216 inch²
Step-by-step explanation:
Given:
Length of one side of die = 6 inches
Find:
Total surface area of Die
Computation:
Total surface area of Die = Total surface area of cube
Total surface area of cube = 6(side)²
Total surface area of Die = 6(Length of one side of die)²
Total surface area of Die = 6(6)²
Total surface area of Die = 6(36)
Total surface area of Die = 216 inch²
the probability of an event happening is 5/9 what are the odds in favor of the event happening
Answer:
5/9
Step-by-step explanation:
it's literally telling you the answer and asking you
If they want the odds in favor then it's the odds of the event happening
Someone plz help me giving brainliest
Answer:
I think 129 miles.... ..........
Answer:
129 miles
Step-by-step explanation:
Write the name of the property shown by each equation. ( Commutative, Associative, Identity, Properties of Zero.
a. 3 x (2 x r)=(3 x 2 ) x r
b. 15 x 1=15
c. 12 x p=p x 12
d. 35 x 0=0
e. 0 divided by 76=0
f. (8 x9) x 12= 8 x (9x12)
Answer:
Step-by-step explanation:
a. Associative property
b. Identity property
c. Commutative property
d. Properties of Zero
e. Properties of Zero
f. Associative property
6
For a movie scene, a stuntman will slide down a wire that is connected from the top of a building to the ground. The wire,
the side of the building, and the ground can be represented as the sides of a right triangle, as shown in the figure below.
Building
600
Wire
70 feet
x feet
The height of the building where the wire is attached is 70 feet. Based on the angle measure in the figure, which of the
following is closest to the value of x?
A-140.0
B-70.0
C-121.2
D-40.4
Answer:
my best guess would be B for sure
Ms. Biediger family wants to drive 750 miles. If they drive the same distance each day for 5 days what distance d, do they need to drive each day
(answer quickly please)
Last year, Charmaine opened an investment account with $6200. At the end of the year, the amount in the account had decreased by 6.5%. How much is this
decrease in dollars? How much money was in her account at the end of last year?
Answer:
Decreased value- 2,170
Absolute difference- 4,030
Step-by-step explanation:
25 minutes before 9 at night is written as _:__p.m.
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
5.08, 1.99, 4.54, 4.83, 3.2, 1.99, 4.36, 4.8, 4.78
What is the median?
Answer:
4.45
Step-by-step explanation:
it is ordered from highest to lowest1,99 1,99 3.2 4,36 4,54 4,78 4,8 4,83
(2 numbers remain as medium)
is added and divided by 24,36
4,54
8,90/2= 4.45
i hope i have help you :)
PLEASE I NEED THE ANDWER IN THE BEXT MINUTE
Answer:
Step-by-step explanation:
Radius = 28 : 2 = 14 cm
Area = radius^2 x π = 14^2 x π = 196 π cm^2
Answer:
The radius is 13
The area is 530.93
Step-by-step explanation:
To find the radius of a circle, you divide the diameter (26) by 2.
And I dunno abt the area :') I just used a calculator
im sorry but i need help with this seriously difficult question
what is 1+1?
Answer:
2
Step-by-step explanation:
1 + 1 = 2
Answer:
1+1 equals 2 ok are you a ok bye
How many times must you roll an ordinary 6-sided dice for the probability of getting at least one multiple of 3 more than 0.7
Question isn't clearly stated.
The. Probability o
Answer:
Step-by-step explanation:
How many times must you roll an ordinary 6-sided dice for the probability of getting at least one multiple of 3 more than 0.7
Given a six sided die : (1, 2, 3, 4, 5, 6)
Multiple of 3 = (3, 6) = 2
Getting a multiple of 3 on a single roll :
P(multiple of 3) = 2 / 6 = 1/3
Janet must paint her outdoor circular tabletop because it has rusted. The diameter of the table
is four feet. How many square feet of paint will she use to take care of the task
Answer:
12.56 ft²Step-by-step explanation:
The area of the tabletop:
A = πr² = πd²/4 = 3.14*4²/4 = 12.56 ft²Answer: my friend up there did it right
Step-by-step explanation:
PLEASE HELP ASAP!! will mark brainlest!
Answer:
1. Axis of Symmetry: x=-4, Vertex: (-4, -6)
2. Axis of Symmetry: x=2, Vertex: (2, 8)
Step-by-step explanation:
hi! please help i’ll give brainliest
Answer:
The last answer is it I think.
Step-by-step explanation:
Find the mean, median, mode, and range for the following numbers.
62,58,92,16,24
HELP ME PLS
Answer:
Mean: 50.4
Median: 58
Mode: None
Range: 76
Step-by-step explanation:
The mean is all the numbers added together and then divided by 5.
(62 + 58 + 92 + 16 + 24) ÷ 5 = 50.4
The median is the number in the middle. First, arrange the numbers from least to greatest and then pick the one in the middle
16, 24, 58, 62, 92
The mode is the number that appears the most. There is no mode in this data set because every number appears once.
The range is the biggest number subtract by the smallest number.
92 - 16 = 76
2(2x - 3) + 6 = 4x How many solutions does the equation have? A. no solutions B. one solution C. two solutions D. infinitely many solutions
Answer:
D. infinitely many solutions
Step-by-step explanation:
to find how many solutions the equation have, we can solve it
here's the given equation:
2(2x-3)+6=4x
our goal is to isolate the variable onto one side
do the distributive property shown in the equation (multiply both 2x and -3 by 2)
4x-6+6=4x
combine like terms (add -6 and 6)
4x=4x
subtract 4x from both sides, as we still have the variable on both sides
0=0
0 is always equal to 0; that's an identity
if we get to a point in an equation where we get an identity as the answer (ex. 3=3 or in this case, 0=0), the answer is all real numbers, or infinitely many solutions
Answer:
D. Infinitely many solutions.
Step-by-step explanation: