Answer:
|AB| = 240 km
Step-by-step explanation:
Finding ∠C :
⇒ 27° + 66° + ∠C = 180°
⇒ ∠C = 180° - 93°
⇒ ∠C = 87°
Applying the Law of Sines :
⇒ sin 66° / 220 = sin 87° / AB
⇒ 0.913545458 / 220 = 0.998629535 / AB
⇒ AB = 220/0.913545458 x 0.998629535
⇒ AB = 240.819981 x 0.998629535
⇒ AB = 240.489946
⇒ |AB| = 240 km (nearest whole kilometer)
Answer:
|AB| = 240 km (nearest km)
Step-by-step explanation:
Draw a sketch with the given information (attached).
Calculate the missing angle (shown in red on the attached diagram).
Given:
∠CAB = 27°∠CBA = 66°The interior angles of a triangle sum to 180°
⇒ ∠ACB + ∠CAB + ∠CBA = 180°
⇒ ∠ACB + 27° + 66° = 180°
⇒ ∠ACB = 180° - 27° - 66°
⇒ ∠ACB = 87°
Use Sine Rule for sides to calculate |AB|:
[tex]\sf \dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}[/tex]
(where A, B and C are the angles and a, b and c are the sides opposite the angles)
[tex]\implies \sf \dfrac{|AB|}{\sin ACB}=\dfrac{|AC|}{\sin CBA}[/tex]
[tex]\implies \sf \dfrac{|AB|}{\sin (87^{\circ})}=\dfrac{220}{\sin (66^{\circ})}[/tex]
[tex]\implies \sf |AB|=\dfrac{220\:\sin (87^{\circ})}{\sin (66^{\circ})}[/tex]
[tex]\implies \sf |AB|=240.4899459...[/tex]
[tex]\implies \sf |AB|=240\:km\:(nearest\:km)[/tex]
what is the explicit formula cor ths geometric sequence 224,112,56,28
a_n=224(1/2)^n-1
HURRY I NEED TO FINSIH THIS TEST BEFORE 12:00
What graph represents the piecewise-defined function? 6 if x 3 y = 3 if 3 < x < 2 5 if x 2 >
HURRY I NEED TO FINSIH THIS TEST BEFORE 12:00
What graph represents the piecewise-defined function? 6 if x 3 y = 3 if 3 < x < 2 5 if x 2 >
URGANT!!!!
An amount of $17,000 is borrowed for 10 years at 4.75% interest, compounded annually. If the loan is paid in full at the end of that period, how much must be paid back?
Use the calculator provided and round your answer to the nearest dollar.
Answer:
$27,039
Step-by-step explanation:
Calculating the amount of interest :
A = P (1 + r/n)^(nt)A = interestP = principalr = rate of interest (in decimal)n = number of times compoundedt = time (in years)Given values :
P = $17,000r = 4.75% = 0.0475n = 1t = 10Solving :
A = (17,000)(1 + 0.0475/1)¹⁰A = (17,000)(1.0475)¹⁰A = (17,000)(1.59052433)A = $27,039 (nearest dollar)please solve the problem
Answer:
See below ~
Step-by-step explanation:
Section (xiii) :
m(AB) : m(AC) = m(BD) : m(DC)6 : 8 = 3 : x6/8 = 3/xx = 3/6 x 8x = 0.5 x 8x = 4Section (xiv) :
DE = 1/2(AB)3 = 1/2(x + 1)x + 1 = 6x = 5It is indicated in the diagram that CE = EB :
y - 7 = x - 1y = 5 - 1 + 7y = 12 - 1y = 11Answer: xiii: x=4 xiv: x=5 y=11
Step-by-step explanation:
Ok, for xiii, there is a ratio.
BD:DC aka 3:x You're trying to solve for x (DC)
On the other side of the equation, it's AB:AC aka 6:8 This ratio can be simplified to 3:4 (when you divide both sides by 2)
To set things up:
3:x = 3:4
Notice the similarity? Since they are equal to one another, x must be 4.
Now for xiv, you're trying to find the values of x and y.
DE=3 and AB=x+1
DE=1/2 of AB
so,
3=(x+1)/2 Solving for x, multiply both sides by 2
6=x+1 subtract both sides by 1
-1 -1
x=5
If you plug x to AB, AB = 6
Plug x to BE = 4
To find y, notice how there is a dash that marks them as congruent, so the lengths BE and EC must be equal.
so y-7=4 (adding 7 to both sides)
+7 +7
y=11
Which number is equal to 4/2?
The number that is equal to [tex]\frac{4}{2}[/tex] is 2
How to find the number that is equal to 2
When you ask "What is 4/2 as a whole number?" you are asking to convert the fraction [tex]\frac{4}{2}[/tex] to a whole number.
The fraction [tex]\frac{4}{2}[/tex] has a numerator of [tex]4[/tex] and a denominator of [tex]2[/tex]. To convert [tex]\frac{4}{2}[/tex] to a whole number, you simply divide the numerator by the denominator.
Given that:
[tex]\frac{4/2=2}{2/2=1} =\frac{2}{1}=2[/tex]
Therefore, The number that is equal to [tex]\frac{4}{2}[/tex] is 2
Learn more about finding the whole number of a fraction here:
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Please see attached question I am stuck on.
By looking at this problem:
⇒ must use trigonometric functions:
⇒ (look at image attached for further reference)
Let's solve:
For side 'a'[tex]sin(10)=\frac{a}{13}\\ a = 13sin(10)\\a=2.25743[/tex]
For side 'b'[tex]cos(10)=\frac{b}{13} \\b = 13cos(10)\\b = 12.80250[/tex]
Make sure to round your answer to four decimal points
Answer:
a = 2.2574b = 12.8025Hope that helps!
In the figure below, O is between M and P, and N is the midpoint of MO. If =MP16 and =NO4, find OP.
Answer:
O is in between m and p so it is 6
Step-by-step explanation:
In the figure below, O is between M and P, and N is the midpoint of MO. If =MP16 and =NO4, find OP.
find the domain and range with a vertex of (1,-2)
Answer:
see explanation
Step-by-step explanation:
the domain ( values of x ) that a quadratic can have is all real numbers
domain : - ∞ < x < ∞
the range ( values of y ) are from the vertex upwards , that is
range : y ≥ - 2
A line contains the two points plotted in the coordinate plane below.
What is the slope of the line?
Answer:
The slope would be 3.
Step-by-step explanation:
The formula for finding slope is [tex]\frac{y1-y2}{x1-x2}[/tex]
We can plug these numbers into the equation by doing [tex]\frac{1--5}{2-0}[/tex]
1--5 is equal to 1+5, which is 6.
2-0 is equal to 2.
[tex]\frac{6}{2}[/tex] is 3, which is how you get your answer.
I hope this helps! :)
Please help I’m not sure about this one x=106
Answer:
Question?
Step-by-step explanation:
where is the Question?
Consider the line y=-2/3x+9 . Find the equation of the line that is parallel to this line and passes through the point (-8,3) . Find the equation of the line that is perpendicular to this line and passes through the point (-8,3) .
The equation of line which is parallel to line is y = (-2x-7)/3.
What is Gradient?
Gradient is the ratio between change in y-axis to change in x-axis.
Here, Given Equation of line is y = [tex]\frac{-2}{3}x+9[/tex]
gradient of line m₁ = -2/3
Equation of line passing through point (-8, 3) and gradient -2/3 (parallel to given line) is
(y - y₁) = m₂(x - x₁)
( y - 3) = -2/3(x+8)
3y - 9 = -2x -16
3y = -2x -16 + 9
3y = -2x -7
y = (-2x-7)/3
Thus, the equation of line which is parallel to line is y = (-2x-7)/3
Learn more about Gradient from :
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If JK = 20, KL = x + 9, and JL = 6x + 9, what is KL?
[tex]\underset{\leftarrow ~~ 6x+9 ~~ \to }{J\stackrel{20}{\rule[0.35em]{15em}{0.25pt}} K\stackrel{x + 9}{\rule[0.35em]{10em}{0.25pt}} L} \\\\\\ \stackrel{JL}{6x+9}~~ = ~~\stackrel{JK}{20}+(\stackrel{KL}{x+9})\implies 6x+9=29+x\implies 5x+9=29 \\\\\\ 5x=20\implies x=\cfrac{20}{5}\implies x=4\hspace{5em}\boxed{\underset{KL}{\stackrel{(4)~~ + ~~9}{13}}}[/tex]
The two formats used in an observation checklist are:
A. Video recording and audio recording
B. Performance profiles and Tallies
C. Tallies and video recording
D. Performance profiles and SMART Targets
Answer:
The two formats used in an observation checklist are:
A. Video recording and audio recordingB. Performance profiles and Tallies
C. Tallies and video recording
D. Performance profiles and SMART Targets
#CarryOnLearning
a) Fill in the gaps below to describe the transformations.
clockwise/anticlockwise about (-1,0) to give
triangle A'.
Triangle A' is then reflected in the line
to give triangle A".
b) What type of single transformation maps triangle A onto triangle A"?
A"
Triangle A is rotated
O
-4
A
a) Triangle A is rotated 90 degrees anticlockwise about (-1,0) to give triangle A'.
Triangle A' is then reflected in the line y=0 to give triangle A''.
b) Rotation
a) Triangle A is rotated 90 degrees anticlockwise about (-1,0) to give triangle A'. Triangle A' is then reflected in the line y=0 to give triangle A''.
b) Rotation
Given,
Triangles A , A' , A'' .
Here,
The triangles are rotated and reflected to get different triangles .
Firstly ,
Triangle A is made to be rotated by 90° in anticlockwise direction at point (-1 , 0) .
To get A'' triangle A' is reflected from horizontal axis.
Triangle A maps into triangle A'' by rotation .
Know more about triangle transformation,
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What is the name of this polygon? rhombus rectangle square trapezoid A quadrilateral. What is the name of this polygon?
rhombus
rectangle
square
trapezoid
A quadrilateral. Each angle has a small square.ach angle has a small square.
Step-by-step explanation:
Rectangle: A quadrilateral with four right angles; a rectangle is a type of parallelogram. Square: A quadrilateral with four congruent sides and four right angles; a square is both a rhombus and a rectangle. Trapezoid: A quadrilateral with exactly one pair of parallel sides (the parallel sides are called bases)
MULTIPLE CHOICE
A sphere has the same radius as a cylinder. In the cylinder, the radius equals the height. If
the cylinder has a volume of 150 cubic units, what is the volume of the sphere?
A
450 cubic units
B
200 cubic units
С
112.5 cubic units
D
50 cubic units
Answer:
B
Step-by-step explanation:
150 = πr² * r
r = 3.62783
V = 4/3 (π * 3.62783³)
V = 199.99 cubic units or 200
please help will mark Brainliest!!.
Answer:
A square
Step-by-step explanation:
Its hard to mark the coordinates but its likely for it to be a square
A large company boasts in their promotional literature that 75% of their employees have college degrees. A simple random sample of 54 employees from this company is taken, and the proportion with a college degree is calculated. If a hypothesis test were to be performed to test the company’s claim, which of the following would represent the appropriate pair of hypotheses?
The hypotheses that represent the appropriate pair of hypotheses will be H₀: p = 0.75 and Hₐ: p ≠ 0.75. Then the correct option is C.
What are null hypotheses and alternative hypotheses?In null hypotheses, there is no relationship between the two phenomena under the assumption that it is not associated with the group. And in alternative hypotheses, there is a relationship between the two chosen unknowns.
A large company boasts in their promotional literature that 75% of their employees have college degrees.
A simple random sample of 54 employees from this company is taken, and the proportion with a college degree is calculated.
If a hypothesis test were to be performed to test the company’s claim.
Then the hypotheses represent the appropriate pair of hypotheses will be
H₀: p = 0.75
Hₐ: p ≠ 0.75
Thus, the correct option is C.
More about the null hypotheses and alternative hypotheses link is given below.
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Assume that the salaries of computer programmers are normally distributed, with a mean of $66,000 and a standard deviation of $14,000.
If four programmers are selected at random, find the probability that they have a mean salary between $40,000 and $50,000.
a) 0.52
b) 0.09
c) 0.26
d) 0.01
The probability that they have a mean salary between $40,000 and $50,000 is 0.01.
What is Z- score test?A z-test is a statistical test to determine whether two population means are different when the variances are known and the sample size is large.
The z-score for 40,000 is
= (40,000 - 66000) / (14,000 / √4)
= -26000/7000
= -3.714, P- value is 0.000102
The z-score for 50,000
= (50,000 - 66,000) / (14,000 / √4)
=-2.285, P- value is 0.0111564
P(40,000 < x < 50,000) = P( -3.714< z < -2.285)
So,
= P(50,000)-P(40,000)
= 0.0111564-0.000102
=0.011
Hence, the probability that they have a mean salary between $40,000 and $50,000 is 0.01.
Learn more about this concept here:
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Find the mean, median, mode, and range for the data set.
12, 46, 32, 18, 26, 41, 46
5890 108 134 115 221
7.3.16
Answer:
515.1
Step-by-step explanation:
easy
200(x-0.3)=600
-10(x-1.7)=-3
Answer:
x = 33.
x = 2.
Step-by-step explanation:
200(x-0.3)=600
200x - 60 = 600
200x - 60 + 60 = 600 + 60
200x = 660
x = 660/200
x = 3.3.
-10(x-1.7)=-3
-10x + 17 = -3
-10x + 17 - 17 = -3 - 17
-10x = -17 - 3 = -20
x = 2.
Question 6 (Essay Worth 6 points)
(06.03)
4(2x + 3) + 5y
From the expression above, provide an example of each of the following: sum, term, product, factor, quotient, and coefficient. If any are not presen
write "not present."
Answer:
A term is a single number or variable, in this case, the number 2.
The sum in this equation would be 4x + 2.
The product is the result of multiplication, in this equation, the result of 5(4x + 2).
The factors are the digits that are being multiplied, in this case, 5 & 4x + 2
The quotient is the result of a division, in this case, the result of (4x + 2) / 7y.
A coefficient is a number that is being multiplied by a variable, in this case, 4 & y.
Would the value of (12 - 4) = 4+1 change if the parentheses were removed? Explain.
Answer:
It would not
Step-by-step explanation:
(12-4)=4+1 would be 8=5
12-4=4+1 would also be 8=5
6) In a shipment of 150 televisions, 11 are defective. If a person buys three televisions from that
shipment, what is the probability that they are all defective?
Answer:
0.03%
Step-by-step explanation:
[tex]\frac{11}{150}(\frac{10}{149})(\frac{9}{148})[/tex]
≈ 0.03%
$800 is deposited in an account
that pays 9% annual interest,
compounded annually. Find the
balance after four years.
$[ ? ]
Answer:
$1,129.27
Step-by-step explanation:
Compounded interest formula is
[tex]A=P(1+\frac{r}{n} )^{nt}[/tex]
Where [tex]A[/tex] is the final amount, [tex]P[/tex] is the principal, [tex]r[/tex] is the anual interest in decimal, [tex]n[/tex] is the numer of compounded periods in one year and [tex]t[/tex] is the time in years.
[tex]P= 800\\r= 0.09\\n= 1\\t= 4[/tex]
So then we plug our numbers...
[tex]A=800(1+\frac{0.09}{1})^{1(4)}=800(1.09)^{4}[/tex]
[tex]A=$1,129.27[/tex]
After 4 years the amount would be $1,129.27
Help me please this is confusing
Answer:
40/8
Step-by-step explanation:
last one i think
Composition of the functions is
commutative.
Answer:
The rule a+b=b+a, for all real numbers a,b, is the commutative law for addition. The fact that we can have g∘h≠h∘g, for some functions g,h, says that composition of functions is not commutative. Composition of functions is not the same as multiplication of functions: f=h∘gmeansf(x)=h(g(x))j=h⋅gmeansj(x)=h(x)g(x).
What percent of 17 is 3?
Answer: 3 is 17.6471% of 17
Step-by-step explanation:
Find the lateral area and surface area of the regular square pyramid.
Round to nearest tenth.
Answer:
Step-by-step explanation:
lateral edge is an edge from the base to the vertex. As opposed to a base edge.
If the base edge is 6, the base diagonal is 6√2
Now draw a right triangle from the center of the base to the vertex, including one base corner.
(6√2/2)^2 + h^2 = (√34)^2
18 + h^2 = 34
h = 4
So, now we have height 4 and base edge 6, so the faces are triangles with
base = 6
height = √(3^2 + 4^2) = 5
lateral area is thus 4 * 1/2 (6)(5)
add the square base if desired.
i need this answer fast and as soon as possible
Find the volume of the podium in the shape of a prism.
Answer:
8640
Step-by-step explanation:
1) Volume of the lower prism:
V1 = 27*20*12 = 6480
2) Volume of the higher prism:
V2 = 9*20*12 = 2160
3) Volume of the podium: V1 + V2 = 8640