Answer:
x = 18.5°
Step-by-step explanation:
90° = (6x - 21°)
90 + 21 = 6x - 21 + 21
111 = 6x
6x = 111
6x ÷ 6 = 111 ÷ 6
x = 18.5
Answer:
X = 18.5°
Step-by-step explanation:
A grocer wants to mix a type of spice which costs £22 per kilogram with another type
which costs £12 per kilogram, to obtain 20 kilograms of mixture which will cost £15 per
kilogram. What quantity of each spice must the grocer take?
Answer:
60
Step-by-step explanation:
let a = 22 / kg, and b = 12 / kg
a + b = 20 kg
22a + 12b = 15 * 20
12a + 12b = 240
10a = 60
a dilation has center (0,0). Find the image of the point L(-4,0) for the scale factor 7.
The image of the point L(-4,0) after a dilation with a center of (0,0) and a scale factor of 7 is the point L'(-28,0).
A dilation with a center of (0,0) and a scale factor of 7 means that every point in the plane will be multiplied by a factor of 7 from the origin.
To find the image of the point L(-4,0) after a dilation with a center of (0,0) and a scale factor of 7, we can simply multiply the coordinates of L by the scale factor.
The coordinates of the image point L' will be:
L' = (-4 × 7, 0 × 7) = (-28, 0)
Therefore, the image of the point L(-4,0) after a dilation with a center of (0,0) and a scale factor of 7 is the point L'(-28,0).
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What is the rate of change for the interval between 0 and
2 for the quadratic equation as f(x) = 2x² + x - 3
represented in the table?
O
23/1/2
04
05
O 10
\(\begin{array}{llll} f(x)~from\\\\ x_1 ~~ to ~~ x_2 \end{array}~\hfill slope = m \implies \cfrac{ \stackrel{rise}{f(x_2) - f(x_1)}}{ \underset{run}{x_2 - x_1}}\impliedby \begin{array}{llll} average~rate\\ of~change \end{array} \\\\[-0.35em] ~\dotfill\\\\ f(x)= 2x^2 + x -3 \qquad \begin{cases} x_1=0\\ x_2=2 \end{cases}\implies \cfrac{f(2)-f(0)}{2 - 0} \\\\\\ \cfrac{[2(2)^2 + (2) -3]~~ - ~~[2(0)^2 +(0) -3]}{2}\implies \cfrac{7-(-3)}{2}\implies \cfrac{7+3}{2}\implies \text{\LARGE 5}\)
The rate of change for the interval between 0 and 2 for the quadratic equation will be 5. Then the correct option is C.
What is the average rate change?It is the average amount by which the function varied per unit throughout that time period. It is calculated using the gradient of the line linking the interval's ends on the graph depicting the function.
Average rate = [f(x₂) - f(x₁)] / [x₂ - x₁]
The function is given below.
f(x) = 2x² + x - 3
The rate of change of the function for the interval between 0 to 2 is calculated as,
Average rate = [f(2) - f(0)] / [2 - 0]
Average rate = [(2(2)² + 2 - 3) - (2(0)² + 0 - 3)] / 2
Average rate = 10 / 2
Average rate = 5
The rate of change for the interval between 0 and 2 for the quadratic equation will be 5. Then the correct option is C.
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1. Desde el pie de un edificio se observa la parte superior de una torre con un ángulo de elevación de 45°. Desde la azotea del mismo edificio se observa la cúspide de la torre con un ángulo de depresión de 60°. El edificio es 20 m. más alto que la torre. Determinar ambas alturas.
Por razones trigonométricas, encontramos que las alturas de la torre y el edificio son de aproximadamente 11.548 metros y 31.548 metros, respectivamente.
¿Cómo determinar la altura de dos edificios?
En esta pregunta debemos utilizar conceptos de trigonometría para determinar la altura de los dos edificios. A continuación, tenemos las siguientes expresiones trigonométricas:
Diferencia entre las alturas del edificio y el torre
20 = r₁ · sin 60°
r₁ ≈ 23.094 m
Ahora determinamos el valor de r₂ mediante identidades trigonométricas:
r₂ = r₁ · (cos 60°/cos 45°)
r₂ = (23.094 m) · (cos 60°/cos 45°)
r₂ ≈ 16.330 m
Finalmente, obtenemos las alturas de cada edificio:
Torre
h = (16.330 m) · sin 45°
h ≈ 11.548 m
Edificio
h' = h + 20 m
h' = 11.548 m + 20 m
h' = 31.548 m
Por razones trigonométricas, encontramos que las alturas de la torre y el edificio son de aproximadamente 11.548 metros y 31.548 metros, respectivamente.
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Triangle ABC was dilated using the rule Do,4. Triangle AB'C' is the result of the dilation. What is OB? O 1.5 units O 3 units O 4.5 units O 6 units
The segment OB' has a length of 3 units
How to determine the length of OB'?From the question, we have the following parameters that can be used in our computation:
Scale factor = 4
Length of segment OB = 3/4
The above means that:
Length of segment OB' = Length of segment OB * Scale factor
Substitute the known values in the above equation
So, we have the following dilation equation
Length of segment OB' = 3/4 * 4
Evaluate
Length of segment OB' = 3
Hence, the length of OB' is 3 units
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7. Identify the axis of symmetry of the parabola.
y = -1
-8-6-4 P
-2/
X = 1
X = -1
y4
8
y = 1
6-
4-
2+
CO
+
4 68 X
Q
Answer:
The answer is y=-1 (answer is C).
1
What is the measure of A?
The measure of A is: 78°
What’s the area of this only answer if you know the answer if its correct I’ll give brainliest
Answer:
Area is 24 unit ²
Step-by-step explanation:
Given :-
Hypotenuse :- 10unitsBase:- 8unitsHeight:- 6unitsTo find:-
Area of triangleSolution:-
We know , The formula for finding area of triangle is 1/2×b×h
putting the known values ,
Area = 1/2 × 8 × 6 unit²
Area = 24 unit²
The estimated population is 1242 and the actual population is 1378.
The percent error is approximately
The percentage error is approximately 10%
How to estimate the percent error?We have:
Estimated = 1242
Actual = 1378
The change in the measurement is:
Change = Actual - Estimate
So, we have:
Change = 1378 - 1242
Evaluate
Change = 136
The percentage error is then calculated as:
Percentage error = Change * 100%/Actual
This gives
Percentage error = 136 * 100%/1378
Evaluate
Percentage error = 9.869%
Approximate
Percentage error = 10%
Hence, the percentage error is approximately 10%
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What is the value of h(2)?
-2
-1 0 3
Answer:
103 is ur answer hope this helps
Answer:
The answer is 0 or C on Edge.
Step-by-step explanation:
Got it right. 2021.
complete the fraction 9/8=9×
Answer:
1/8
Step-by-step explanation:
9/8=9 x 1/8 because to find this, you have to divide 9 by 9/8. When you divide fractions, you have to find the reciprocal of the fraction. In this case, it would be 1/9=9/8. Multiply those together to get 1/8.
translate in terms of x then solve the algebra equation the sum of a number and 3 is subtracted from 10 the result is 5
Answer:
x=2
Step-by-step explanation:
10 - (x + 3) = 5
To solve for x, we can start by simplifying the left side of the equation:
10 - (x + 3) = 5
10 - x - 3 = 5
7 - x = 5
Next, we can isolate x on one side of the equation by subtracting 7 from both sides:
7 - x = 5
7 - x - 7 = 5 - 7
-x = -2
Finally, we can solve for x by dividing both sides of the equation by -1:
-x = -2
x = 2
Therefore, the solution to the equation is x = 2.
The following lots of Commodity Z were available for sale during the year. Beginning inventory 9 units at $50 First purchase 16 units at $50 Second purchase 21 units at $59 Third purchase 16 units at $62 The firm uses the periodic system, and there are 23 units of the commodity on hand at the end of the year. What is the ending inventory balance at the end of the year according to the FIFO method?
According to the FIFO method, the ending inventory balance for Commodity Z is $1,405
How much inventory is left under FIFO?FIFO means that earlier inventory is sold first and later inventory would be the last goods left.
Since there were 23 units left, all 16 units from the last purchase and 7 units from the second purchase would be available:
= (16 x 62) + (7 x 59)
= 992 + 413
= $1,405
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Write an equation of the line that passes through (18,2) and is parallel to the line 3y - x= - 12 .
Answer:
\(y = \frac{1}{3}x-4\)
Step-by-step explanation:
Step 1: Solve for y in the first equation
\(3y - x = -12\)
\(3y - x + x = -12 + x\)
\(\frac{3y}{3} = \frac{x}{3} - \frac{12}{3}\)
\(y = \frac{1}{3}x - 4\)
Step 2: Determine the important aspects
We know that our line is parallel to the other line that has a slope of 1/3 which means that our slope is also going to be 1/3. We also know that our line crosses the point (18, 2) which means that we can use the point slope form to determine our equation
Point Slope Form → \((y-y_1) = m(x - x_1)\)
Step 3: Plug in the information and solve
\((y-2) = \frac{1}{3}(x - 18)\)
\(y - 2 = \frac{1}{3}x - 6\)
\(y - 2 + 2 = \frac{1}{3}x - 6 + 2\)
\(y = \frac{1}{3}x-4\)
Answer: \(y = \frac{1}{3}x-4\)
Mortgages (47-49)Eli is buying a townhouse that costs $276,650. He has $28,000 in savings and earns $4,475 a month. Eli would liketo spend no more than 30% of his income on his mortgage payment. Which loan option would give Eli the lowestmonthly payment? Show your work.A. 30 year FHA, 3.5% down and a fixed rate of 6.5%B. 30 year fixed, 5% down at a fixed rate of 6.25%C. 30 year fixed, 6.5% down and a fixed rate of 5.75%D. 30 year fixed, 10% down at a fixed rate of 5%
Cost C = $276,650
Initial quote = $28000
If Eli spends 30% of 4,475 = $1342.5 monthly
Then now calculate
3.5% down of $276,650 = $9682.75
Substract $28000- $9682.75 = 18317.25
Now find ,fixed rates
For 6.5% , interest is.
She have to pay a quote of (276,650- 9682.75)/12•30
. = $741.57
For 5% down of $276,650 = 13832.5
Eli have now $28000- $13832.5 = 14167.5
She have to pay a quote of (276,650- 13832)/30•12 = $262818/360
. = $730
Interest fixed rate 6.25%
Then find 730• ( 1+ 6.25/100)^ 30 = 4500 in 30 years
Now option C)
6.5% down = $276,650x 6.5/100 = $17982.25
Eli have now $28000 - 17982.25 = 10017.75
She have to pay a quote of (276,650 - 17982)/30•12
. = $718.52
Then find 718.52•( 1+ 5.75/100)^30 = 3844.6. in 30 years
Option D)
10% down = $276,650x10/100 = $27,665
Eli have now $28000- 27,665 = $335
She have to pay a quote of (276,650 - 27665)/30•12 =
. = $691.625
Then find now 691.625•(1+ 5/100)^30 = $2989.16 in 30 years
So ,in conclusion we have to choose the minor value of quote. In this case is
ANSWER IS
OPTION D) $2989,16
The mapping diagram represents a relation where x represents the independent variable and y represents the dependent variable. A mapping diagram with one circle labeled x values containing values negative 3, negative 1, 1, 3, and 5 and another circle labeled y values containing values 0, 2, and 5 and arrows from negative 3 to 0, negative 1 to 2, 1 to 0, 3 to 2, and 5 to 5. Is the relation a function? Explain. No, because for each input there is not exactly one output No, because for each output there is not exactly one input Yes, because for each input there is exactly one output Yes, because for each output there is exactly one input
Yes, because for each input there is exactly one output. Therefore, the relation represented by the mapping diagram is a function.
To determine if the relation represented by the given mapping diagram is a function, we need to check if each input (x value) has exactly one output (y value) associated with it.
From the given mapping diagram, we can see that:
The input value -3 is associated with the output value 0.
The input value -1 is associated with the output value 2.
The input value 1 is associated with the output value 0.
The input value 3 is associated with the output value 2.
The input value 5 is associated with the output value 5.
As we can see, each input value has exactly one output value associated with it. Therefore, the relation represented by the mapping diagram is a function.
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URGENT HELP NEEDED
Estimate the measure of ∠LMN to the nearest 10
.
Answer:
100 degrees
Step-by-step explanation:
please like and mark brainliest answer
Find the quotient of z₁ by z2. Express your answer in
trigonometric
form.
² - 3 (0 (4) + (*))
Z₁ cos
+/sin
Z₂
²2 = 7 (cos(377)+
COS
8
O A. 7 (cos (577) + i sin (5/77))
8
B.
21(cos(577)+isin (577))
8
OC. 21 cos
21(cos(-7)+ i sin(-77))
O D. 7 (cos(-7) + + sin(-7))
i
+/sin
37T
8
The quotient of z₁ by z₂ in trigonometric form is:
7/21 * (cos(584°) + i sin(584°))
To find the quotient of z₁ by z₂ in trigonometric form, we'll express both complex numbers in trigonometric form and then divide them.
Let's represent z₁ in trigonometric form as z₁ = r₁(cosθ₁ + isinθ₁), where r₁ is the magnitude of z₁ and θ₁ is the argument of z₁.
We have:
z₁ = 7(cos(577°) + i sin(577°))
Now, let's represent z₂ in trigonometric form as z₂ = r₂(cosθ₂ + isinθ₂), where r₂ is the magnitude of z₂ and θ₂ is the argument of z₂.
From the given information, we have:
z₂ = 21(cos(-7°) + i sin(-77°))
To find the quotient, we divide z₁ by z₂:
z₁ / z₂ = (r₁/r₂) * [cos(θ₁ - θ₂) + i sin(θ₁ - θ₂)]
Substituting the given values, we have:
z₁ / z₂ = (7/21) * [cos(577° - (-7°)) + i sin(577° - (-7°))]
= (7/21) * [cos(584°) + i sin(584°)]
The quotient of z₁ by z₂ in trigonometric form is:
7/21 * (cos(584°) + i sin(584°))
Option C, 21(cos(-7°) + i sin(-77°)), is not the correct answer as it does not represent the quotient of z₁ by z₂.
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I NEED YOUR HELP WITH HOMEWORK ASSIGNMENT
The value of c, using the normal distribution, is given as follows:
c = 2.
How to obtain probabilities using the normal distribution?The z-score of a measure X of a normally distributed variable that has mean symbolized by the symbol \(\mu\) and standard deviation represented by \(\sigma\) is obtained by the equation presented as follows:
\(Z = \frac{X - \mu}{\sigma}\)
The z-score quantifies how many standard deviations the measure X is above or below the mean of the distribution of the data-set, depending if the obtained z-score is positive(above the mean) or negative(below the mean).The z-score table is used to obtain the p-value of the respective z-score of the measure, and it represents the percentile of the measure X in the distribution.The p-value of Z = -0.99 is given as follows:
0.1611.
Hence the p-value of c is given as follows:
0.8167 + 0.1611 = 0.9778.
Looking at the z-table, the value of c is given as follows:
c = 2.
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Find the domain and range of the function graphed below. Answer in interval notation.
Answer:
Domain: \((-\infty, 8)\)Range: \((-\infty, -3)\)Step-by-step explanation:
The domain is the set of x values, and the range is the set of y values.
Find the graph of the inequality y>-(1/6)x+1.
Answer:
y > -x/6 + 1
Step-by-step explanation:
Hope this can help
The graph of the inequality \(y > -(\frac{1}{6} )x+1\) is option "A" .
What is graph of inequality?The graph of an inequality in two variables is the set of points that represents all solutions to the inequality. A linear inequality divides the coordinate plane into two halves by a boundary line where one half represents the solutions of the inequality. The boundary line is dashed for > and < and solid for ≤ and ≥.If the symbol ≥ or > is used, shade above the line. If the symbol ≤ or < is used shade below the line.
According to the question
The inequality : \(y > -(\frac{1}{6} )x+1.\)
now first we take out points to plot graph for that we will assume inequality to equation
i.e
\(y = -(\frac{1}{6} )x+1\)
x y
0 1
6 0
Now , as inequality have > sign
i.e according to the graph of inequality rules:
The boundary line is dashed for > and < and If the symbol ≥ or > is used, shade above the line.
Therefore,
Graph will be option "A" only .
Hence, the graph of the inequality \(y > -(\frac{1}{6} )x+1\) is option "A" .
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Given the equation y = 2 csc(7π/4x-21π/2)
The horizontal shift is:
units to the Select an answer (right or left)
The exact period (give as an integer or fraction) is:
The horizontal shift is to the right.
The exact period is 8/7.
How to find the the horizontal shiftIn a trigonometric function, written of the form
y = A csc (Bx - C)
the parameters are interpreted as follows
A is the amplitude
B is period / 2π
C is the horizontal shift
comparing with the equation y = 2 csc (7π/4x - 21π/2). we have that
horizontal shift = -21π/2 since it is positive it is to the right
The exact period is
Period = 2π / (7π/4)
= 8/7
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S
Warm-Up
Determining if a Relationship Is a Function
Determine if each set of ordered pairs represents a function.
(2, 3), (6,-5), (-1, 3)
Function
(1,9), (-3,-2) (1,-4)
(7.-4), (0, 9), (2,-2)
(0, 3), (0, 7), (4,0)
(-6, 5), (-5, 6), (8, 2)
Not a Function
Using it's concept, the set of ordered pairs that represent a function are:
(2, 3), (6,-5), (-1, 3)(7.-4), (0, 9), (2,-2)(-6, 5), (-5, 6), (8, 2)The set of ordered pairs that do not represent a function are:
(1,9), (-3,-2) (1,-4)(0, 3), (0, 7), (4,0)When does a relation represents a function?A relation represents a function if each input X is mapped to only one output Y.
At (1,9), (-3,-2) (1,-4), input 1 is mapped to outputs 9 and -4, hence it is not a function.
At (0, 3), (0, 7), (4,0), input 0 is mapped to outputs 3 and 7, hence it is not a function.
For the other relations, each input is mapped to only one output, hence they are functions.
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What is the y value of y=2x-3 and y=3x-7
Step-by-step explanation:
hope the above solution will help you
Examine the following typical corporate bond listing:
In the name column, NYTel is the abbreviated name of the company (New York Telephone) issuing the bond. What was the closing price of the bond? What was the dollar amount? (See attachments)
a. 101 3/4; $101,750
b. 7 1/4; $7250
c. 101 3/4; $1017.50
d. 107 1/4; $1072.50
Answer:
C. 101 3/4; $1017.50
Step-by-step explanation:
Correct on E2020!
The question is in the picture.
Easy way to do this, divide 24 with 3, you will get 8. That means 8 is 1/3 of 24. To get 2/3 you just add 8+8 which equals to 16
A coin is about to be tossed 50 times. Determine the probability the 8th heads occurs on the 12th toss
Answer:
0.0806
Step-by-step explanation:
From the given information:
Number of toss = 50
The probability of having a head = 1/2 = 0.5
The Probability of 8th head occur on 12th toss can be computed as :
Pr(8th head occur on 12th toss) = Pr(7 heads in 11 toss) × P(8th head on 12th toss)
Pr(8th head occur on 12th toss) = C(11,7) × 0.5⁷ × (1 - 0.5)⁴ * 0.5
Pr(8th head occur on 12th toss) = \(\dfrac{11!}{7!(11-7)!}\) × 0.5⁷ × (1 - 0.5)⁴ × 0.5
Pr(8th head occur on 12th toss) = 0.0806
Answer:
The probability of 8th heads,
That is occurred on 12th toss.
Step-by-step explanation:
A coin is tossed 50 times.
There are two possible outcomes of occurring a head or tail.
Probability of occurring head = no.of head/ possible outcomes
= 1/2
Total number of tossing a coin= 50 times
Probability of 8th heads occurs on 12th toss:
12C8 (1/2)8 (1/2)9 (1/2)10 (1/2)11 (1/2)12
= 12C8 (1/2)8+9+10+11+12
= 12C8 (1/2)50
= 12C8 / 250
= 495 / 1125899906842624
= 4396.48317752 x 10-16
This is the probability of 8th heads,
That is occurred on 12th toss.
First question
English28 minutes ago
+5 pts
2.1. As a 21st century student, you will need to make use of at least three of the six fundamental academic literacies to conduct your research,...
Answer:
I don't really know
Step-by-step explanation:
but good luck
. Write the equation of a line with a slope of 4 passing through the point (3, 1). Write the
equation in slope-intercept form.
Answer:
y = 4x - 11
Step-by-step explanation:
The general equation of the slope-intercept form of a line is given by:
y = mx + b, where
(x, y) are any point on the line,m is the slope,and b is the y-intercept.We can find b, the y-intercept of the line, by plugging in 4 for m and (3, 1) for (x, y) in the slope-intercept form:
1 = 4(3) + b
1 = 12 + b
-11 = b
Thus, the y-intercept is -11.
Thus, the equation of the line with a slope of 4 passing through the point (3, 1) in slope-intercept form is y = 4x - 11
The answer is:
y = 4x - 11Work/explanation:
First, we will write the equation in point slope:
\(\sf{y-y_1=m(x-x_1)}\)
where m = slope;
(x₁,y₁) is a point on the line.
Plug in the data:
\(\sf{y-1=4(x-3)}\)
Simplify
\(\sf{y-1=4x-12}\)
Add 1 on each side
\(\sf{y=4x-12+1}\)
\(\sf{y=4x-11}\)
Hence, the equation is y = 4x - 11.In the picture at right, lines l and m are parallel. The measure of angle
Answer:
Angle APB is 95∘
Step-by-step explanation:
180 - 54 = 126
126 - 31 = 95
Answer:
145 Degree
Step-by-step explanation:
it is a reflex angle and all reflex angle measures at 145 Degrees