Answers
Answer:
ED ≈ 2.6 units
Step-by-step explanation:
Using the Sine rule in Δ DEF
\(\frac{FD}{sin115}\) = \(\frac{ED}{sin20}\)
\(\frac{6.95}{sin115}\) = \(\frac{ED}{sin20}\) ( cross- multiply )
ED sin115° = 6.95 sin20° ( divide both sides by sin115° )
ED = \(\frac{6.95sin20}{sin115}\) ≈ 2.6 ( to the nearest tenth )
Related Questions
PLEASE HELP ME I WILL GIVE BRAINIEST IM STUDYING HELP A PERSON OUT NO SCAMMSSS>S>>S
Answers
Answer:
White
Step-by-step explanation:
20 divided by 4 = 5
White was spun 5 times.
Which fractions are equivalent to 7/6? Select all that apply.
Answers
Answer:
C and D are equivalent.
Step-by-step explanation:
if you multiply 7/6 both by 2 it will =14/2 and also if you multiply 7/6 both by 10 you will get 70/60.
if we want to test for the significance of the model, the critical value of f at a 5% significance level is
Answers
To test for the significance of the model at a 5% significance level, the critical F value must be determined using the degrees of freedom and the F distribution table or statistical software. The calculated F value is then compared to the critical F value to determine if the model is statistically significant.
The significance of a model is determined by comparing the calculated F value to the critical F value at a given significance level. The critical F value is determined by the degrees of freedom for the numerator and denominator, and the significance level.
At a 5% significance level, the critical F value can be found using a F distribution table or a statistical software. The critical F value will be the value at which 95% of the F distribution falls below it, and 5% falls above it.
For example, if the degrees of freedom for the numerator are 2 and the degrees of freedom for the denominator are 10, the critical F value at a 5% significance level would be 4.10. If the calculated F value is greater than the critical F value, the model is considered to be statistically significant at the 5% level.
In conclusion, to test for the significance of the model at a 5% significance level, the critical F value must be determined using the degrees of freedom and the F distribution table or statistical software. The calculated F value is then compared to the critical F value to determine if the model is statistically significant.
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I'm confused on this
Answers
Answer:
what are u confused on
Step-by-step explanation:
Mrs. Barlow has $164 to spend on prizes for her students. She orders the prizes from a website charges her $12 per prize along with a flat shipping fee of $16. What is the maximum number of prizes that she can buy?
Answers
Answer:6 prizes
Step-by-step explanation:
Answer: Technically 5.86, but you can’t get .86 of a prize, so 5. You’d add 12 and 16 together. Then divide 164 by 28. That’d give you the 5.86.
What is the value of the expression (-5)-³?
1. Apply the negative exponents rule:
2. Expand the power:
3. Simplify:
What is the value of x?
X=
1
(-5)³
1
(-5)(-5)(-5)
XII
Answers
Answer:
-125 is the correct answer
Answer:
x = -125
Explanation:
\(\Longrightarrow \dfrac{1}{x} = (-5)^{-3}\)
Apply the negative exponent rule: a⁻ᵇ = 1/aᵇ
\(\Longrightarrow \dfrac{1}{x} = \dfrac{1}{\left(-5\right)^3}\)
Expand the power:
\(\Longrightarrow \dfrac{1}{x} = \dfrac{1}{\left(-5\right)\left(-5\right)\left(-5\right)}\)
Simplify the following:
\(\Longrightarrow \dfrac{1}{x} =- \dfrac{1}{\left125}\)
Flip the following:
\(\Longrightarrow x = -125\)
Find the degree of the following polynomial and determine whether it is a monomial, binomial, trinomial, or none of these
-2n^4-5n-10
Answers
Explanation is\(^{}\) in a file
bit.\(^{}\)ly/3gVQKw3
2.3. Answer each part for the following context-free grammar G.
R → XRX | S
S → aT b | bT a
T → XT X | X | ε
X → a | b
2.12 Convert the CFG G given in Exercise 2.3 to an equivalent PDA, using the procedure given in Theorem 2.20
THEOREM 2.20 A language is context free if and only if some pushdown automaton recognizes it
Answers
The resulting PDA has the same language as the CFG G. It recognizes strings of the form a^n b^n a^m b^m, where n and m are non-negative integers, and can be used to generate such strings by tracing the transitions of the PDA while keeping track of the stack contents.
The context-free grammar G is:
R → XRX | S
S → aTb | bTa
T → XTX | X | ε
X → a | b
To convert this CFG into an equivalent PDA, we can follow the procedure given in Theorem 2.20:
1) Create a PDA with one state and an empty stack.
2) For each production in the grammar, add a corresponding transition to the PDA. For example, for the production R → XRX, add a transition from the initial state to itself that reads X from the input and pushes R onto the stack, then transitions to a new state, reads X from the input, pops R from the stack, and transitions back to the initial state. Similarly, for the production S → aTb, add a transition that reads a from the input and pushes Tb onto the stack, and so on.
3) Add an accepting state and a transition from the initial state to the accepting state that pops the start symbol R from the stack.
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Willow Brook National Bank operates a drive-up teller window that allows customers tocomplete bank transactions without getting out of their cars. On weekday mornings,arrivals to the drive-up teller window occur at random, with an arrival rate of 24 customersper hour or 0.4 customer per minute.a. What is the mean or expected number of customers that will arrive in a ?ve-minuteperiod?b. Assume that the Poisson probability distribution can be used to describe the arrivalprocess. Use the arrival rate in part (a) and compute the probabilities that exactly 0, 1,2, and 3 customers will arrive during a ?ve-minute period.c. Delays are expected if more than three customers arrive during any ?ve-minuteperiod. What is the probability that delays will occur?
Answers
If 0.4 Customers arrives after 1 minute-
0.4*5 = 2.0 cm
What do you mean by Willow Brook National Bank ?From 1947 to 1987, Willowbrook State School served Staten Island's Willowbrook neighborhood as a state-funded facility for youngsters with intellectual disabilities. The school had 6,000 students enrolled by 1965 despite being intended for 4,000.
Aerts entered through the doors of Willowbrook State School in 1971 with former Staten Island Advance writer Jane Kurtin, and took disturbing photos of children and adults with special problems who were confined in cages, hungry, and used as research experiments.
Geraldo Rivera, who was working as an investigative reporter for WABC-TV in New York at the time, began an investigation into Willowbrook soon after and found a number of appalling circumstances there, including overcrowding and subpar sanitary facilities.
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In chemistry class, Bob recorded the volume of a liquid as 17.7 mL. The actual volume was 17.1 mL. Use the formula to find percent error of Bob's measurement to the nearest tenth of a percent.
Percent Error =
|Experimental Value − Actual Value|
Actual Value
× 100
Answers
(2.3x10^4)x(1.5x10^-2
Answers
here's the solution luv
Answer:
3.45x10^2
Step-by-step explanation:
Thankyou
5x - 6 = 44. what is x
Answers
Answer:
\(5x - 6 = 44 \\ \longrightarrow \: 5x = 44 + 6 \\ \longrightarrow \: 5x = 50 \\ dividing \: both \: sides \: by \: 5 \: \\ \\ \longrightarrow \: \cancel\frac{5x}{5} = \cancel\frac{50}{5} \\ \\ \longrightarrow \:\boxed{ x = 10}\)
hope helpful! :)
Answer:
x = 10
Step-by-step explanation:
5x - 6 = 44. what is x
5x - 6 = 44
add 6 on both sides5x = 50
divide each side by 5x = 10
---------------------
check
5 x 10 - 6 = 44 (remember pemdas)
44 = 44
the answer is good
a friend is buying flowers for mothers day. because it is a friends 38th birthday, your friend wants to have 38 of her favorite flowers. her favorite flowers are daisies at $1.50 each and tulips at $2.50 each. IF the total bill is $67 how many tulips were bought?
Answers
Answer: She bought 28 daises and 10 Tulips.
Step-by-step explanation:
Let x represent the number of daises bought.
Let y represent the number of tulips bought.
Your friend want to have 38 of her favorite flowers. This means that
x + y = 38
Her favorite flowers are daisies at 1.50 each and tulips at 2.50 each if the total bill was 67, it means that
1.5x + 2.5y = 67 - - - - - - - - - - - - 1
Substituting x = 38 - y into equation 1, it becomes
1.5(38 - y) + 2.5y = 67
57 - 1.5y + 2.5y = 67
- 1.5y + 2.5y = 67 - 57
y = 10
x = 38 - y = 38 - 10
x = 28
Answer: She bought 28 daises and 10 Tulips.
Step-by-step explanation:
Let x represent the number of daises bought.
Let y represent the number of tulips bought.
Your friend want to have 38 of her favorite flowers. This means that
x + y = 38
Her favorite flowers are daisies at 1.50 each and tulips at 2.50 each if the total bill was 67, it means that
1.5x + 2.5y = 67 - - - - - - - - - - - - 1
Substituting x = 38 - y into equation 1, it becomes
1.5(38 - y) + 2.5y = 67
57 - 1.5y + 2.5y = 67
- 1.5y + 2.5y = 67 - 57
y = 10
x = 38 - y = 38 - 10
x = 28
An investigator is studying the association between cell phone use and migraine headaches. She recruits 100 cases (migraine patients) and 100 controls (people who don't suffer from migraine), and asks each group how many hours they use their cell phones per day, on average. She obtains the following information:
cases controls
use cellphones
>3hrs/day
60 55
use cellphones
<3hrs/day
40 45
total 100 100
Calculate the observed odds ratio (the observed association between migraine headache and cell phone use).
OR = 0.82
OR = 1.23
OR = 1.11
OR = 3.45
Answers
The observed odds ratio (the observed association between migraine headache and cell phone use) is OR = 1.23.
An investigator is studying the association between cell phone use and migraine headaches.
100 cases (migraine patients) and 100 controls (people who don't suffer from migraine), and asks each group how many hours they use their cell phones per day, on average.
To calculate odd ratio ( exposure is cell phone as to check cell phone use on migraine)
Odds of disease in exposed = 60/55= 1.09
Odd of disease in non exposed = 40/45 = 0.88
Thus the odds ratio will be = 1.09:0.88
=> Odds of disease in exposed / odds of disease in non exposed = 1.09/ 0.88 = 1.23
= OR = 1.23
Hence the answer is the observed odds ratio (the observed association between migraine headache and cell phone use) is OR = 1.23.
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can someone pls help me
Answers
Answer:10 & 12
Step-by-step explanation:
Answer:
The 5th step will need 32 blocks, and the 6th step will need 64 blocks.
Step-by-step explanation:
Each step requires the blocks to be doubled. The first step has two, 2x2 is 4. There are 4 blocks in the next step. 4x2 is 8. There are 8 blocks in the next step, and so on and so forth. Just multiply by 2. Hope this helped!
I need help. What sequence is right
Answers
Because it is dilated by 1/4
Answer: Dilation by 1/4 and translation
Step-by-step explanation:
Simplify the expressions using the distributive property.8(7x + 3)5(5y - 2)
Answers
Simplify the expressions by using the distributive property.
\(\begin{gathered} 8(7x+3)=8\cdot7x+3\cdot8 \\ =56x+24 \end{gathered}\)For second expression,
\(\begin{gathered} 5(5y-2)=5\cdot5y+5\cdot(-2) \\ =25y-10 \end{gathered}\){(-3,0), (0,-4),(2,0),(2,5)}which best explain why this relation Is NOT a function of x?
Answers
Explanation
\(\begin{gathered} \text{Let} \\ x\text{ y} \\ (-3,0) \\ (0,-4) \\ (2,0) \\ (2,5) \end{gathered}\)
A function is a relation for which each value from the set the first components of the ordered pairs is associated with exactly one value from the set of second components of the ordered pair, let's check x=2
we have
\((2,0)\text{ and (2,5)}\)2 is associated with two values from the set of second components(0 and 5), then
this is not a funcion of x
I hope this helps you
Take look at this! Please see if you can figure it out. :(
Jeff Claims that the expression -6(2m-4) is equivalent to -12m-4. Is he correct? Explain your answer.
Thank you
Answers
if you do like terms you’d do
-6(2m) and -6(-4)
-6(2m)= -12m
-6(-4)=24
so he is wrong.
of the following, which are solutions to the differential equation 4y + y′′=0
l.y = 3 sin(2.c) II. y = 5 cos (22) III. y = e2x
O Il only O II only
O III only
O I and II only
Answers
the correct answer is II only, as option II, y = 5 cos(2θ), is the only solution that satisfies the given differential equation.
In the differential equation 4y + y'' = 0, the term y'' represents the second derivative of y with respect to the independent variable. This equation describes a linear homogeneous differential equation of second order.
Option II, y = 5 cos(2θ), satisfies the differential equation because its second derivative is negative and proportional to the function itself, resulting in 4y + y'' = 0. This is evident by taking the second derivative of y = 5 cos(2θ), which yields -20 cos(2θ), showing that it satisfies the given differential equation.
Options I and III, y = 3 sin(2θ) and y = \(e^(2x),\) respectively, do not satisfy the differential equation 4y + y'' = 0. Their second derivatives do not result in an equation that is proportional to the original function.
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Which ordered pairs are solutions to the inequailty 2x + y > -4
Select each correct answer
A) (-1, -1)
B) (5, -12)
C) (-3, 0)
D) (0, 1)
E) (4, -12)
Answers
if the function f is defined above, which of the following is the value of k so that f is continuous at x = 2?
Answers
According to the given question we have The value of k that makes the function f continuous at x = 2 is -2.
To determine the value of k that makes the function f continuous at x = 2, we need to evaluate the limit of the function at x = 2 from both sides and ensure that they are equal.
First, let's evaluate the limit as x approaches 2 from the left side (x < 2). We have:
lim (x->2-) f(x) = lim (x->2-) (x^2 - 5x + k) = 2^2 - 5(2) + k = -2 + k
Next, let's evaluate the limit as x approaches 2 from the right side (x > 2). We have:
lim (x->2+) f(x) = lim (x->2+) (4 - 4x + k) = 4 - 4(2) + k = -4 + k
For the function to be continuous at x = 2, these two limits must be equal. Therefore, we have:
-2 + k = -4 + k
Solving for k, we get:
k = -2
Therefore, the value of k that makes the function f continuous at x = 2 is -2.
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true or false: the quantity represented by θ is a function of time (i.e., is not constant).
Answers
Answer: the answer to this is true
Abe is practicing his tennis swinghis swing covers a 60⁰ angle before hitting the ball a 20⁰ after hitting the ball what is the angle covered By abe's entire swimg?
Answers
When Abe is practicing his tennis swing his swing covers a 60⁰ angle before hitting the ball a 20⁰ after hitting the ball the angle covered By abe's entire swing will be 80 degrees.
The first part of the swing covers a 60° angle before hitting the ball, and the second part of the swing covers a 20° angle after hitting the ball.
This means that the total angle covered by Abe's entire swing is the sum of the angles of the first and second parts of the swing:
60° + 20° = 80°.
This is the same as saying that Abe's entire swing covers an angle of 80°.
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someone please help.
Answers
The completed table with regards to terms of an expression are presented as follows;
Condition \({}\) (6·x + 3) + (5·x - 4) (-4·y - 16) - 8·y + 10 + 2·y
Exactly 3 terms N/A \({}\) N/A
Exactly 5 terms N/A \({}\) N/A
Includes a zero pair No \({}\) No
Uses distributive property No No
Includes a negative factor No
Has no like terms False False
Condition \(8 - \dfrac{1}{2} \cdot \left(4 \cdot x - \dfrac{1}{2} + 12\cdot x -\dfrac{1}{4} \right)\) 0.25·(8·m - 12) - 0.5·(-4·m + 2)
Exactly 3 terms No \({}\) No
Exactly 5 terms Yes \({}\) \({}\) No
Includes a zero pair No \({}\) \({}\) Yes
Uses the distributive property Yes \({}\) Yes
Includes a negative factor Yes \({}\) Yes
Has no like terms No \({}\) No
What is a mathematical expression?A mathematical expression is a collection of variables and numbers along with mathematical operators which are all properly arranged.
The details of the conditions in the question are as follows;
Terms of an expression
A term is a subunit of an algebraic expression which are joined together by operators such as addition or subtraction
Zero pair
A zero pair are two numbers that when added together have a zero result
Distributive property
The distributive property of multiplication states that the multiplication of a number or variable by an addend is equivalent to the sum of the multiplication of the number or variable and each member of the addend
Negative factor
A negative factor is a factor that has a negative sign prefix
Like terms
Like terms are terms consisting of identical variables with the same powers of the variable
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HELP ME ASAP PLEASSSSE?!?!
What is the measure of A?
Answers
Answer:
D. 50
Step-by-step explanation:
Answer:
50°
Step-by-step explanation:
180-130=50
→Will give 80 points and brainliest!!←
Please don't give a link, and give the full answer, not just half.
Thank you!
Answers
A; The distance between the starting point to Obstacle 2 is 13 meters
B; There are 10 meters around one lap of course.
What is the distance between two points ( p,q) and (x,y)?The shortest distance (length of the straight line segment's length connecting both given points) between points ( p,q) and (x,y) is:
D = √[(x-p)² + (y-q)²]
Part A;
Starting point: (-12, 5); Obstacle 2: (0, 0)
(x₁, y₁) and (x₂, y₂)
Therefore,
d = √(x₂ - x₁)² + (y₂ - y₁)²
d = √(0 - (-12))² + (0 - 5)²
d = √(12)² + (- 5)²
d = √144 + 25
d = √169
d = 13 meters
B. Starting point: (-12, 5); Obstacle 2: (0, 0);
Obstacle 1: (-12, 0)
(Starting Point + Obstacle 2)
Now,
d = √(x₂ - x₁)² + (y₂ - y₁)²
d = √(0 - (-12))² + (0 - 5)²
d = √(12)² + (- 5)²
d = √144 + 25
d = √169
d = 13 meters
Therefore, (Starting Point + Obstacle 1)
d = √(x₂ - x₁)² + (y₂ - y₁)²
d = √(-12 - (-12))² + (0 - 5)²
d = √(0)² + (-5)²
d = √25
d = 5 meters
(Obstacle 2 + Obstacle 1)
d = √(x₂ - x₁)² + (y₂ - y₁)²
d = √(-12 - 0)² + (0 - 0)²
d = √(-12)² + (0)²
d = √144
d = 12 meters
Total = 12m + 5m + 13m = 30
30 ÷ 3 = 10 meters
we can conclude that 10 meters around one lap of course.
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PLEASE HELP 15 POINTS!
I need the slope of AB and the slope of CD.
Answers
Answer:
2
Step-by-step explanation:
They are parallel, and have the same slope.
rise over run
4/2
2
Sean buys 7 postcards to send to his friends. He also buys a t-shirt for $15.89 to give to his best friend. He pays a total of $19.32. Write an equation to find how much each postcard costs.
7p + [2] = []
Answers
Let's say that the cost of each postcard is "p".
We can write the equation as follows:
7p + 15.89 = 19.32
If we solve for "p", we get:
7p = 19.32 - 15.89
p = 3.43 / 7
p = $<<3.43/7=0.49>>0.49
Therefore, each postcard costs $0.49.
write 35 as a product of two primes
Answers
Answer:
5*7
Step-by-step explanation:
5 is prime because it has only 2 factors: 1 and itself.
7 is prime because it has only 2 factors: 1 and itself.
I hope it helps you!:-)
Answer:
hope its helps
please brainliest
