A smokestacks, AB, is 55 m high. From two points C and D on the same side of the smokestack’s base B, the angles of elevation to the top of the smokestack are 40 degrees and 36 degrees repectively. Find the distance between C and D to the nearest metre.
Plz guys help me with this question ASAP
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Thank you so much God Bless you brother
Answer:
CD=10.15m
Step-by-step explanation:
Find the distance of BC.
Tan(40)=55/BC
BC=65.55m
Find the distance of BD.
Tan(36)=55/BD
BD=75.70m
Use BC and BD to find CD
BD-BC=CD
75.70-65.55=CD
CD=10.15m
Check all the true statements.
Answer:
The true statements are:
2DE = AC1/2AC = DEDE || ACStep-by-step explanation:
As we are given,
AD = 3.5 and BD = 3.5
CE = 3 and BE = 3
From the given triangle ΔABC, it is clear that:
The segment DE bisects the sides AB and BC, so
AD = BD
CE = BE
It is clear that the segment DE is parallel to the segment AC, thus
DE || AC
As DE is the midsegment between AB and BC, so
2DE = AC
1/2AC = DE
Thus, the true statements are:
2DE = AC1/2AC = DEDE || ACWhat is the surface area and Volume?
Answer:Surface area and volume are calculated for any three-dimensional geometrical shape. The surface area of any given object is the area or region occupied by the surface of the object. Whereas volume is the amount of space available in an object. ... Each shape has its surface area as well as volume.
Step-by-step explanation:
Solve the system of linear equations by using the elimination method:
4x+ y = 36
8x- y = 60
Answer:
(8,4)
Step-by-step explanation:
y and -y cancels out leaving you with "12x=96"
that simplifies to "x=8"
Then you substitute 8 into the "x" from either equation and y should equal 4
What is the image point of (4,5)(4,5) after a translation left 5 units and down 3 units?
Answer:
The image of point (-1,2)
Step-by-step explanation:
Step(i):-
Given point ( 4,5)
The Horizontal translation left '5' units then the transformed to
(x ,y ) → (x - 5 ,y)
(4,5)→ (4-5 , 5)
Step(ii):-
Again the vertical translation down '3' units then transformed to the co-ordinate point is (x, y)→ ( x, y-3)
(4-5 , 5)→ ( 4-5 , 5 -3)
(-1 , 5) → (-1 , 2)
Final answer:-
The image of point (-1,2)
Can someone please help me by solving this and showing your work? Thank you!! GO INTO DETAIL PLSS
Answer:
63.84 is area
Step-by-step explanation:
so its 8.4 x 15.2 divided by 2
Equation:
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x +
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= 180 Angle B =
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degrees Angle A =
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degrees
Answer:
x = 41; B = 41°; A = 77°
Step-by-step explanation:
All of the angles add up to 180 so to solve for X you do (x) + (2x-5) + (62) = 180. Solve for X and you get 41. Lastly plut the answer back into the equation.
can you help me with this question plzz?
Answer: The answer is 96 wizards.
Step-by-step explanation:
So what I like to do is fraction formatting.
you start with x/blank [tex]\frac{blank}{120}[/tex] and [tex]\frac{80}{100}[/tex] you do cross multiply divide
and multiple 120 by 80(=9600) and divide by 100 (=96) because wizards are 20% less of the population than goblins, so they are equivalent to 80% of the goblins! Hope this helped!
Evaluate the expression below. 18 - 71- 4 + 3(-1)
Answer:
18 - 71 -4 + 3(-1)
-53 - 4 - 3
-57 - 3
-60
hope it's helpful ❤❤❤❤
THANK YOU.
help aaaaaaaaassssspp
Answer:
8) A. (1,-4) 9) D. (4,0)
Step-by-step explanation:
You can substitute the x and y coordinates in each inequality and use process of elimination to figure out whether the ordered pair is the solution.
Fred and Stacey both have books to read over the summer. Fred has read 42 pages and Stacey has read 49 pages. What is the ratio of the number of pages Stacey has read to the number of pages Fred has read?
A. 7:6
B. 1:42
C. 6:7
D. 42:1
answer m/40 + 50 = 51
Answer:
m=40
Step-by-step explanation:
First you would subtract 50 from both sides to get -> m/40=1. So finally if you want to multiply 40 to both sides it would be m=40. Hope this helps!
What steps would you take in order to solve the equation 38=6x-16
•Subtract 16 and then divide by 6
•Divide by 6 and add 16
•Add 16 and then divide by 6
•Multiply by 6 and add 16
Answer:
in my opinion it should be Add 16 and then divide by 6
Step-by-step explanation:
Answer:
C. Add 16 and divide by 6
Step-by-step explanation:
If you add by 16 you will get a result of
54=6x
Then when you divide by 6 you will result in
9=x or x=9 which will solve the equation
Hope this helps!
Plz help I don’t understand how to do this problem
Answer:
a) 6b) 3t² - 17t + 28c) 3t² - 5t - 2Step-by-step explanation:
Given function:
g(t) = 3t² - 5t + 4a) g(2)
g(2) = 3*2² - 5*2 + 4 = 3*4 - 10 + 4 = 12 - 6 = 6b) g(t - 2)
g(t - 2) = 3(t - 2)² - 5(t - 2) + 4 = 3(t² - 4t + 4) - 5t + 10 + 4 = 3t² - 12t + 12 - 5t + 16 = 3t² - 17t + 28c) g(t) - g(2)
g(t) - g(2) = 3t² - 5t + 4 - 6 = 3t² - 5t - 2PLEASE HELP!!!
kari deposited $1,840 into an account that pays 3.5% interest compounded annually. What will the balance be in five years? round your answer to the nearest cent (hundredth)
bro I got the answer
The graph of f(x) = 2x + 3 shifts 10 units to the right when it is replaced with the graph of f(x) = 2x − k. What is the value of k? (1 point) 3 7 10 13
Answer:
10
Step-by-step explanation:
k represents how many places the graph will be shifted. -k means that is being shifted to the right and positive means being shifted to the left.
So when moving 10 units to the right, k will equal 10
Answer:
its 10
Step-by-step explanation:
i think i may have the answer but im not sure. if you answer thanks sm :)
Answer:
F
Step-by-step explanation:
3(5) would be the equivalent of 3*5, adding the + n.
Your next Pre-Algebra test is worth 93 points and contains 38 multiple choice and short answer problems. Each
multiple choice problem is worth two points and each short answer is worth three points. How many of each type of
problem is on the test?
Answer:
There are 21 multiple-choice problems and 17 short answers.
Step-by-step explanation:
Let there are x multiple-choice problems and y short answers.
ATQ,
x+y = 38 ....(1)
Each a multiple-choice problem is worth two points and each short answer is worth three points.
2x+3y = 93 ....(2)
Multiply equation (1) by 2.
2x+2y = 76 ....(3)
Subtract equation (2) and (3) we get :
2x+3y-(2x+2y) = 93-76
2x+3y-2x-2y = 17
y=17
Put the value of y in equation (1).
x+17 = 38
x=21
Hence, there are 21 multiple-choice problems and 17 short answers
can someone help me with these 3 questions please!!
1. Use greatest common factor and the distributive property to write an equivalent
expression in factored form.
2x + 8y
2. Use greatest common factor and the distributive property to write an equivalent
expression in factored form.
13ab + 15ab
3. Use greatest common factor and the distributive property to write an equivalent
expression in factored form.
20g + 24h
Answer:
..
Step-by-step explanation:
Explain you answer plsss! What is K? 2k-3(4-k)=3k+4!!!! I will give a lot of pointssss!
Answer:
k=8
Step-by-step explanation:
First step: 2k-3(4-k)=3k+4
Second Step: 2k-12+3k=3k+4
Third Step: 2k-12=4
Fourth Step: 2k=4+12
Fifth Step: 2k=16
Sixth Step: 2k/2 = 16/2
Answer: k=8
Answer:
K=8
Step-by-step explanation:
2k-3(4-k)=3k+4
2k-12+3k=3k+4
2k-12=4
2k=4+12
2k=16
k=8
The supplementary angle to 80degrees is
Answer:
its 100 degrees
Step-by-step explanation:
i have no clue how to solve this can someone help?
Answer:26
Step-by-step explanation:
Write the equation of a vertical line running through the point (-2,-10)
Answer:
The equation of a vertical line is x = -2
Step-by-step explanation:
Explanation:-
The equation of a vertical line is x = a
The graph of a vertical line is take values only 'x'
Given that the point is (-2,-10)
The equation of a vertical line is x = -2
Is there a way to quickly find a function if you have a handful of ordered pairs?
ex. (-6, 10) (-4, 7) (-2, 4) (0, 3) (2, 0) (4, -3)
What is 2x34+80......................
Answer:
148
Step-by-step explanation:
2 × 34 = 68
68 + 80 = 148
hope this helps....
Answer:
I think the answer is 148!?
Step-by-step explanation:
The rainfall amount last year was 6 inches below normal. The rainfall this year was 13 inches more than last year. What is the difference between the rainfall amount this year and the normal amount of rainfall? (Hint: Draw a number line to help you visualize the scenario)
Answer:
7
Step-by-step explanation:
The term difference means to subtract. Therefore, 13in - 6in, is equal to 7 inches.
13-6=7
Hope this Helps!!!
need help with ASAP!
Answer: 8y^6x^6
Step-by-step explanation:
Volume = l*w*h so multiply all the variable by multiplying the numbers and adding the exponents so
2y^2*4x^4y=8y^3x^4
then 8y^3x^4*x^2y^3=8y^6x^6
which number line correctly grass the numbers in the list. -6,4,-1,0,5
Is (5,1) a solution to the equation y=5x
Answer:
Are this form1 question
Tonys terrific tools is selling a hammer at 30% discount the sale price is $12.60 what is the original price of the hammer
Answer:
100: x
70 : 12.6
7x=1260
x=1260/70
x or original price= $18
Step-by-step explanation: