3. Using the diagram below, answer the following questions. Remember, you must
show your work for credit.
LA = 6y+42
ZC
ZD
A. Solve for y. (2 points)
ZA=
y=
I
B. Find the measure of angles A, C and D showing all work. (2 points)
ZC=
LB = 66
ZD =
Using vertical angles, it is found that:
A. The solution for y is of y = 4.
B. The angle measures are given as follows:
<A = 66º.<C = 114º.<D = 114º.Vertical AnglesIf two angles are opposite by the same vertex in crossing segments, these angles are called vertical angles, and they are congruent, that is, they have the same measure.
In the context of this problem, the angles of 6y + 42 and of 66 are vertical, hence the value of y is calculated as follows:
6y + 42 = 66
6y = 24
y = 24/6
y = 4.
Angles A and C are supplementary, meaning that the sum of their measures is of 180º, hence:
<C + 66º = 180º
<C = 180º - 66º
<C = 114º.
Angles C and D are vertical, hence the measure of angle D is calculated as follows:
<D = 114º.
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Please help me out here!!!!
Answer:
59.3 °
Step-by-step explanation:
its trigonometry
so you have the
opposite side= 43.5
and the adjacent side = 24.8
if you use SOH CAH TOA you will find that to find y you need to use TOA as tou have the opposite and adjacent.
to find the angle (tan) you need to do tue opposite / adjacent
tan^-1 (43.5/25.8)
= 59.3 to 1 d.p.
you need to use tan^-1 as you are finding the missing angle
i just got done cutting and taking out the seeds of chilies and i went to go use the restroom and now my bottom part is BURNING HELP ME
Answer:
Lol I can't help im sorry
how many times can 2 go into 238
Answer:
i think it is 119
What is the surface of this shape
Answer:
Find the area of all of the different shapes (2D)
and then add them up together to find the surface area.
3×2
6×2
6×2
5×3
6×3
1×3
1×4
1×4
4×3
Then you add them up together.
6+12+12+15+18+3+4+4+12=ANS.
Give two points with integer coordinates that have a slope of 2/5 between them.
Answer:
yes
Given a 2D line e.g. (3,10) -> (8.3,16.5), how can I find any point on that line that has has whole-number coordinates?
I can easily iteratively walk along one of the axis in integer steps, seeing if the value on the other axis is integer, but this is slow for very very long lines.
A car was driving for 4 hours and covered 225 miles. A high-speed train is ten times as fast as this car. Find the train's speed.
Answer:
562.5 mph
Step-by-step explanation:
First, let's find how fast the car is going in miles per hour. We do this by dividing the miles by how many hours it took:
225/4 = 56.25
The car was going 56.25 mph
A high-speed train is ten times faster than this car so you multiply 56.25 by 10
(10)(56.25) = 562.5
The train's speed is 562.5 mph
Hope this helps!
- Kay :)
Answer:
The train covers 2250 miles in 4 hours compared to 225 miles covered in 4 hours by the car
Step-by-step explanation:
56.25 miles per hour - Car
562.50 miles per hour - Train
A boat's value over time is given as the function f(x) and graphed below. Use A(x) = 400(b)x + 0 as the parent function. Which graph shows the boat's value decreasing at a rate of 40% per year?
Answer: I can't really tell you the answer because you didn't show the graphs...
Step-by-step explanation:
A boat's value over time is given as the exponential function f(x) = 400(0.6)ˣ
What is an exponential function?An exponential function is in the form:
y = abˣ
Where a is the initial value and b is the multiplication factor.
Given that the boat's value decreasing at a rate of 40% per year, hence:
b = 100% - 40% = 60% = 0.6
A boat's value over time is given as the exponential function f(x) = 400(0.6)ˣ
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does anybody understand triangle angle theorems??
Answer:
It means that states that the three interior angles of any triangle add up to 180 degrees.
Have A Nice DAY!!!!!!
:-)
A sequence can be generated by using an= 3an-1, where a1 = 10 and n is a whole number greater than 1.
What are the first 3 terms in the sequence?
A. 3, 13, 23
B. 10, 30, 90
C. 10, 13, 16
D. 3, 30, 300
Answer:
B
Step-by-step explanation:
using the recursive rule \(a_{n}\) = 3\(a_{n-1}\) and a₁ = 10, then
a₁ = 10
a₂ = 3a₁ = 3 × 10 = 30
a₃ = 3a₂ = 3 × 30 = 90
the first 3 terms are 10 , 30 , 90
the information below and answer the qu e cost of ingredients to produce 30 litres of homemade ginger er is R120. They added 75% to the production costs to cover ir overheads. ) Calculate the production cost of 1 litre of homemade ginger beer. Show ALL calculations. -) Calculate the profit of 60 litres of homemade ginger beer if the mark-up is 30%. Show ALL calculations. The cost of ingredients to produce ten small chicken pies is R63,00. The overheads to make ten small chicken pies is R31,00. The production cost of ONE small chicken pie is... A. R3,10. 3. R6,30. C. R9,40. 60 (4) (4) (1)
The production cost of ONE small chicken pie is R9.40. Option C.
How to find the production costsTo calculate the production cost of 1 litre of homemade ginger beer:
The cost of ingredients to produce 30 litres of ginger beer is R120, so the cost of ingredients per litre is 120/30 = R4.
They added 75% to the production costs to cover their overheads, so the total production cost per litre is 4 + 0.75(4) = R7.
Therefore, the production cost of 1 litre of homemade ginger beer is R7.
To calculate the profit of 60 litres of homemade ginger beer if the mark-up is 30%:
The cost of producing 60 litres of ginger beer is 60 x 7 = R420.
The mark-up is 30%, so the selling price of 60 litres of ginger beer is 420 + 0.3(420) = R546.
The profit is the selling price minus the production cost, so the profit is 546 - 420 = R126.
Therefore, the profit of 60 litres of homemade ginger beer with a 30% mark-up is R126.
To calculate the production cost of ONE small chicken pie:
The cost of ingredients to produce ten small chicken pies is R63, so the cost of ingredients per pie is 63/10 = R6.30.
The overheads to make ten small chicken pies is R31, so the overhead cost per pie is 31/10 = R3.10.
The production cost of ONE small chicken pie is the sum of the cost of ingredients and the overhead cost, so it is 6.30 + 3.10 = R9.40.
Therefore, the production cost of ONE small chicken pie is R9.40.
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What is the answer
10(4 - 3i) =
Answer:
40-30i
Step-by-step explanation:
Use distributive property.
Answer:
40-30iStep-by-step explanation:
10x4–10x3i 40–10x3i 40–30ians: 40–30i
Cereal costs $2 per box. How many boxes did Joe buy if she spent $6?
Answer:
3 boxes
Step-by-step explanation:
Take the total spent and divide by the cost per box
$6/ $2
3
She bought 3 boxes
Factorize q2-4 completely
The completely factorized form of the expression q² - 4 is (q + 2)(q - 2).
What is the factored form of the expression?Given the expression in the question:
q² - 4
To factorize the expression q² - 4 completely, we can use the formula for the difference of squares.
The difference of squares formula states that :
a² - b² can be factored as (a + b)(a - b).
Given that:
q² - 4
Replace 4 with 2²
q² - 2²
From this expression, let a = x and b = 2
a² - b² = (a + b)(a - b)
q² - 2² = (q + 2)(q - 2)
Therefore, the factored form is (q + 2)(q - 2).
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In circle M with m ∠ L M N = 106 and LM=4 units, find the length of arc LN. Round to the nearest hundredth.
The length of arc LN of the circle is 7.40 units rounded to the nearest hundredth.
How to calculate for the length of arc of a circleTo calculate for the length of an arc of a circle, we use 2πr × (θ/360), where r is the radius and θ is the angle formed from the arc.
Thus we evaluate for the length of the arc as follows;
for π = 3.14, r = 4 and θ = 106°
2 × 3.14 × 4 × (106/360)°
25.12 × 0.2944
7.3953
Therefore, the length of the arc 7.3953 and rounded up to 7.40 to the nearest hundredth.
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How many 3-digit numbers can you write using only digits 1, 5, and 7 if you cannot use the same digit twice?
Answer:
You can make six 3-digit numbers with 1, 5, 7 if you cannot repeat the same digit more than once.
Step-by-step explanation:
Since, we've 3 numbers & we need to create 3-digit numbers, each number should be in the hundreds, tens & ones place at least twice. So, the numbers that we get are:
157751517175715571•°• We'll get six numbers.
__________
Hope it helps!
\(\mathfrak{Lucazz}\)
Ashton walked into restaurant and 4 employees were working registers. Use the trend line equation to predict how long he will wait to place his order.
The trend line simply means a line that's drawn over pivot to show the prevailing direction of price.
What is a trend line equation?Your information is incomplete. Therefore, an overview will be given.
The trend line simply means a line that's drawn over pivot to show the prevailing direction of price.
It should be noted that trend lines are use for making trading decisions.
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What are the coordinates of the roots of the equation 3+2x-x^2
Answer:
3+2x-x^3is the answer
what's y / 4 equals -3
Y/4 = -3
Multiply both sides by 4
Y = -12
5x-y=1/4 write in slope-intercept form
The slope intercept form of the given equation is,
y = 5x - 1/4
Given an equation of a line as,
5x - y = 1/4
We have to write the equation of the line in slope intercept form.
Equation of the line in slope intercept form is,
y = mx + c
Here m is the slope and c is the y intercept.
Rearranging the given equation,
5x = y + 1/4
5x - 1/4 = y
or,
y = 5x - 1/4
Hence the slope intercept form is y = 5x - 1/4.
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It took Kendal 45 minutes to write a full page of her book report.
How long will it take her to write the completed 8-page report?
Use a table to solve.
Answer: It takes Kendal 360 minutes to write the completed 8-page report.
Step-by-step explanation:
The lengths of pregnancies in a small rural village are normally distributed with a mean of 269 days and a standard deviation of 17 days.
In what range would you expect to find the middle 98% of most pregnancies?
Between
299.34
Incorrect229.3 and
303.4
Incorrect308.7.
If you were to draw samples of size 58 from this population, in what range would you expect to find the middle 98% of most averages for the lengths of pregnancies in the sample?
Between
264
Correct and
274.1
Correct.
Enter your answers as numbers. Your answers should be accurate to 1 decimal places.
You would expect to find the middle 98% of most averages for the lengths of pregnancies in the sample between approximately 264.0 days and 274.1 days.
To find the range in which you would expect to find the middle 98% of most pregnancies, you can use the concept of z-scores and the standard normal distribution.
For the given data:
Mean (μ) = 269 days
Standard deviation (σ) = 17 days
To find the range, we need to find the z-scores corresponding to the 1% and 99% percentiles. Since the normal distribution is symmetric, we can find the z-scores by subtracting and adding the respective values from the mean.
To find the z-score for the 1% percentile (lower bound):
z1 = Φ^(-1)(0.01)
Similarly, to find the z-score for the 99% percentile (upper bound):
z2 = Φ^(-1)(0.99)
Now, we can calculate the z-scores:
z1 = Φ^(-1)(0.01) ≈ -2.33
z2 = Φ^(-1)(0.99) ≈ 2.33
To find the corresponding values in terms of days, we multiply the z-scores by the standard deviation and add/subtract them from the mean:
lower bound = μ + (z1 * σ) = 269 + (-2.33 * 17) ≈ 229.4 days
upper bound = μ + (z2 * σ) = 269 + (2.33 * 17) ≈ 308.6 days
Therefore, you would expect to find the middle 98% of most pregnancies between approximately 229.4 days and 308.6 days.
Now, let's consider drawing samples of size 58 from this population. The mean and standard deviation of the sample means can be calculated as follows:
Mean of sample means (μ') = μ = 269 days
Standard deviation of sample means (σ') = σ / sqrt(n) = 17 / sqrt(58) ≈ 2.229
To find the range in which you would expect to find the middle 98% of most averages for the lengths of pregnancies in the sample, we repeat the previous steps using the mean of the sample means (μ') and the standard deviation of the sample means (σ').
Now, calculate the z-scores:
z1 = Φ^(-1)(0.01) ≈ -2.33
z2 = Φ^(-1)(0.99) ≈ 2.33
Multiply the z-scores by the standard deviation of the sample means and add/subtract them from the mean of the sample means:
lower bound = μ' + (z1 * σ') = 269 + (-2.33 * 2.229) ≈ 264.0 days
upper bound = μ' + (z2 * σ') = 269 + (2.33 * 2.229) ≈ 274.1 days
Therefore, you would expect to find the middle 98% of most averages for the lengths of pregnancies in the sample between approximately 264.0 days and 274.1 days.
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A rock is thrown from the top of a building. The height s (in feet) as a function of time (in seconds) can be modeled by the function
s(t) = -16t² + 3000
Approximately when will the rock be 1,976 feet above the ground.
O a
Ob
C
8 sec
135 sec
85 sec
15 sec
Answer: the rock will be at a height of 1,976 feet above the ground after approximately 8 seconds
Step-by-step explanation:
We can start by setting the height function equal to 1,976 and solving for t:
-16t² + 3000 = 1976
Subtracting 1976 from both sides, we get:
-16t² + 1024 = 0
Dividing both sides by -16, we get:
t² - 64 = 0
Factoring, we get:
(t + 8)(t - 8) = 0
So t = 8 or t = -8. We can ignore the negative solution since time cannot be negative.
Therefore, the rock will be at a height of 1,976 feet above the ground after approximately 8 seconds.
Answer: (A) 8 sec
Find the length of the missing side.
1.
35 m
21 m
Given the following numbers: a = 12500000 b = 0.00125 c = 1120000
Calculate (ab)÷ (c) and write the answer in standard form. (2.5 marks)
d) Express the interval (-1.5, 4] as an inequality and then graph the interval.
Answer:
Answer to the following question is as follows.
Step-by-step explanation:
Given:
a = 12500000
b = 0.00125
c = 1120000
Calculate (ab) ÷ (c)
Given:
d) Express the interval [-1.5, 4] as an inequality and then graph
Computation:
(ab) ÷ (c) = (a)(b) / c
(ab) ÷ (c) = (12500000)(0.00125) / (1120000)
(ab) ÷ (c) = 25 / 1,792
Express the interval [-1.5, 4]
{x : -1.5 < x ≤ 4}
Graph.
._________._________.
-1.5 0 4
Which type of information could best be displayed on a two-way frequency table? Select all that apply.
A the number of library books, by genre, borrowed by children and adults during the summer
B the amount of rainfall each week during a year
c the number of daylight hours each day for a month
D the number and type of meals students choose in a lunchroom
Answer: B C and D
Step-by-step explanation:
Given the polynomial 9x2y6 − 25x4y8, rewrite as a product of polynomials.
(9xy3 − 25x2y4)(xy3 + x2y4)
(9xy3 − 25x2y4)(xy3 − x2y4)
(3xy3 − 5x2y4)(3xy3 + 5x2y4)
(3xy3 − 5x2y4)(3xy3 − 5x2y4)
Answer:
Option 3
(3xy³ + 5x²y⁴) (3xy³ - 5x²y⁴)
Step-by-step explanation:
Factorize polynomials:
Use exponent law:
\(\boxed{\bf a^{m*n}=(a^m)^n} \ & \\\\\boxed{\bf a^m * b^m = (a*b)^m}\)
9x²y⁶ = 3²* x² * y³*² = 3² * x² * (y³)² = (3xy³)²
25x⁴y⁸ = 5² * x²*² * y⁴*² = 5² * (x²)² * (y⁴)² = (5x²y⁴)²
Now use the identity: a² - b² = (a +b) (a -b)
Here, a = 3xy³ & b = 5x²y⁴
9x²y⁶ - 25x⁴y⁸ = 3²x²(y³)² - 5²(x²)² (y⁴)²
= (3xy³)² - (5x²y⁴)²
= (3xy³ + 5x²y⁴) (3xy³ - 5x²y⁴)
geometry: HELPPPP PLSS!!
Answer:
A, C and G
Step-by-step explanation:
\(\boxed{\begin{minipage}{9.4 cm}\underline{Trigonometric ratios} \\\\$\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}\quad\tan(\theta)=\dfrac{O}{A}$\\\\where:\\ \phantom{ww}$\bullet$ $\theta$ is the angle. \\ \phantom{ww}$\bullet$ $\sf O$ is the side opposite the angle. \\\phantom{ww}$\bullet$ $\sf A$ is the side adjacent the angle. \\\phantom{ww}$\bullet$ $\sf H$ is the hypotenuse (the side opposite the right angle). \\\end{minipage}}\)
From inspection of the given right triangle:
θ = 25°O = aA = bH = cSubstitute the values into the trigonometric ratios:
\(\implies \sf \sin(25^{\circ})=\dfrac{a}{c}\)
\(\implies \sf \cos(25^{\circ})=\dfrac{b}{c}\)
\(\implies \sf \tan(25^{\circ})=\dfrac{a}{b}\)
\(\boxed{\begin{minipage}{4 cm}\underline{Trigonometric values} \\\\$\sin(90^{\circ}- \theta)=\cos \theta$\\$\cos(90^{\circ}- \theta)=\sin \theta$\\$\tan(90^{\circ}- \theta)=\cot \theta$\\\end{minipage}}\)
Using trigonometric values and the calculated trigonometric ratios:
\(\begin{aligned} \sf \sin(90^{\circ}- 25^{\circ})&=\sf \cos (25^{\circ})\\\implies \sf \sin(65^{\circ}) &=\sf \dfrac{b}{c}\end{aligned}\)
\(\begin{aligned} \sf \cos(90^{\circ}- 25^{\circ})&= \sf \sin(25^{\circ})\\\implies \sf \cos(65^{\circ}) &=\sf \dfrac{a}{c}\end{aligned}\)
\(\begin{aligned}\sf \tan(90^{\circ}- 25^{\circ})&= \sf \cot(25^{\circ})\\\implies \sf \tan(65^{\circ}) &= \sf \dfrac{1}{\tan(25^{\circ})}\\\implies \sf \tan(65^{\circ}) & = \sf \dfrac{b}{a}\end{aligned}\)
Therefore, the true equations are:
\(\sf A: \quad \cos(25^{\circ})=\dfrac{b}{c}\)
\(\sf C: \quad \sin(65^{\circ})=\dfrac{b}{c}\)
\(\sf G: \quad \sin(25^{\circ})=\cos(65^{\circ})\)
D.
A
B.
A sidewalk in the shape of two triangles, a rectangle, and a square
was built around the edge of a building as shown.
108 ft²
T
6 ft
162 ft²
144 ft²
180 ft²
11
6 ft
What is the area of the sidewalk in square feet?
11
18 ft
30 ft
The area of the sidewalk is 388 square feet.
How to find the area of the sidewalkTo find the area of the sidewalk you can find the area of each individual shape and add them together.
Area of the first triangle T = (1/2) x 6 ft x 11 ft = 33 sq. ft.
Area of the second triangle = (1/2) x 6 ft x 18 ft = 54 sq. ft.
Area of the rectangle = 6 ft x 30 ft = 180 sq. ft.
Area of the square = 11 ft x 11 ft = 121 sq. ft.
Therefore, the total area of the sidewalk is:
33 sq. ft. + 54 sq. ft. + 180 sq. ft. + 121 sq. ft. = 388 sq. ft.
So, the area of the sidewalk is 388 square feet.
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3) 15x + 4 = 106
Can someone show me the steps ? Pls :)
1) Subtract 4 from both sides to get 15x = 102
2) Divide by 15 on both sides to get x = 6.8
Answer:
x=6.8
Step-by-step explanation:
15x + 4 = 106
subtract 4 from both sides
15x=102
divide both sides by 15
x=6.8