17. A man stands 4300 feet from the Burj Khalifa in
Dubai (world's tallest building). The angle of
elevation from his eyes (5 feet) to the top of the
building is 32°. How tall is the building?
9514 1404 393
Answer:
b. 2692 ft
Step-by-step explanation:
The relation of interest between the sides of the right triangle is ...
Tan = Opposite/Adjacent
Using the given numbers, that is ...
tan(32°) = (building height)/(4300 ft)
Multiplying by 4300 ft, we get ...
building height = (4300 ft)·tan(32°) ≈ 2686.9 ft
This is the height above the observer's eyes, so the height of the building above the ground is ...
2687 +5 = 2692 . . . . feet
The building is 2692 feet tall.
In the figure, a triangular board ABC is right-angled at B. The
lengths of the two legs are 15 cm and 20 cm. If it is rotated about its
hypotenuse, two circular cones are obtained.
(a) Find the height BN of the board with AC as the base.
Measure of BN = 12 cm
solution in attached image !!
off topic but Omg armyyy
WILL REWARD BRAINLIEST! The diameter of a circle has endpoints P(-4, -6) and Q(12, 4). Write an equation for the circle. Be sure to show and explain all work.
Han and Leila live 7 miles apart. They decide to start walking toward each other's houses at
the same time. Leila walks at a rate of 2.5 miles per hour and Han walks at a rate of 3 miles
per hour. How long will it take for them to meet?
2.5 + 3 = 5.5 total speed
7miles / 5.5 mph = 1.27 hours
Answer:
1.27 hours
Step-by-step explanation:
The first step in this process would be adding both rates of Leila and Han together. We know Leila walks at 2.5 miles per hour and Han at 3 miles per hour.
[tex]2.5 + 3 = 5.5[/tex]
We got our sum as 5.5, so now we must complete Step 2, which is the final step. We must divide 7 by 5.5.
[tex]7 / 5.5 = 1.2727...[/tex]
1.2727 ≈ 1.27
the answer to the Question is 1.27 hours.
PLEASE CAN SOMEONE ANSWER ITS SO CONFUSING
3 (.5i - 6) = 12
A. 4
B. -4
C. - 20
D. 20
Translate the following into math: a number "t" split into four equal groups
Can you form a parallelogram by drawing a triangle and then reflecting one or more times? Explain.
Answer:
please give me brainlist and follow
Step-by-step explanation:
No. It is not possible to reflect a triangle in such a way that the result is quadrilateral with any consecutive sides that are congruent.
Are the following figures similar?
Answer:
no
Step-by-step explanation:
45/36=1.25
1.25x18=22.5
not 25
no common factor
so not similar
A water tank is filled with a hose. The table shows the number of gallons of water in the tank compared to the number of minutes the tank was
being filled. The line of best for this data is g = 9m - 0.17.
Answer:391837738:646929:7473
Step-by-step explanation:
I’m doing it too but the answers 3&&
405 gallons of water in the tank in 45 minutes.
What is slope intercept form of line?The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
Given that A water tank is filled with a hose.
The table shows the number of gallons of water in the tank compared to the number of minutes the tank was
being filled.
The line of best for this data is g = 9m - 0.17.
We need to find when it is 45 minutes.
We have to put m value as 45 to find the number of gallons
g=9(45)-0.17
g=405-0.17
g=404.83
Hence, 405 gallons of water in the tank in 45 minutes.
To learn more on slope intercept form click:
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#SPJ2
Someone help and plz make sure it’s right will mark brainiest if it is :)
Answer:
45°
Step-by-step explanation:
sinθ = 24/34
take the inverse sine of 24/34:
[tex]sin^{-1}(24/34)[/tex] = 44.9° ≈ 45°
debbie owes her brother $25 if she plans to pay him back an equal amount from her savings each day for five day describe the change in her savings each day
Answer:
For 5 days, Debbie will lose 5 dollars from her savings.
Step-by-step explanation:
Heres just the last one and I’m good
Answer:
2340
Step-by-step explanation:
15 x 13 ÷ 2 x 24 = 2340
Rose is getting balloons for her grandfather's birthday party. She wants each balloon string to be 6 feet long. At the party store, string is sold by the yard. If Rose wants to get 43 balloons, how many yards of string will she need?
1 foot =
1
3
yard
√4×√9 plz say the answer
Answer:
the answer is 6
Step-by-step explanation:
i took the test, trust me
Hi, I'm confused about how to write a system of equations to model this word problem
Answer:
Step-by-step explanation:
I say seven...
Please help me I don’t under stand helpppp ASAP
Answer:
25
Step-by-step explanation:
Answer:
27.7
Step-by-step explanation:
1) A pizza is cut into 4 pieces. Each piece is then cut into 2 pieces. If
each kid gets 4 pieces, how many pizzas are needed for 60 kids?
Answer: 2 pizzas
Step-by-step explanation: 4 times 4 times 2 is 32. 1/32 divided into 60 to get 2 pizzas
what is the product of (5x-8)(2x+6)
Answer:
10x^2+14x-48
Step-by-step explanation:
5x*2x=10x^2
5x*6=30x
-8*2x=-16x
-8*6=48
combine them and you'll get 10x^2+14x-48
Answer:
24x-48
HOPE THIS HELPS
-Todo <3
Step-by-step explanation:
5x*2x=10x
5x*6=30x
-8*2x=-16x
-8*6=-48
40x-16x=24x
24x-48
Find the lateral surface area of the triangular prism shown below.
Answer:
my classmates answer is in the11cm dawStep-by-step explanation:
yan Ang answer ng classmate koSolve the equation for Y
Answer:
y = 2
Step-by-step explanation:
-2y + 1 = y-5
-2 - y = -5 - 1
-3y = -6
y = -6 ÷ -3
y = 2
2
Select the three expressions that are equivalent to -2 (4-30) + (50 -
A 2 10
11 - 10
C-8 + lla - 2
D 8 - ll - 2
E-8 + 6 + 5 - 2
F
8 30 + 50 - 2
Answer:
I really don't know this one but I have a feeling it os option c
A cubic yard is what kind of measurement?
O A. perimeter
O B. surface area
O c. volume/capacity
O D. length
O E. weight
Which of the following is equivalent to(x2+6x+9)
(x-3)(x+3)
(x+2)(x-7)
(x-6)(x+3)
(x+3)2
Which expression has the same value as -5x+ 10y?
-10y - (-5x)
5x + 10y
10y + 5x
-5x – (-10y)
Answer:
-5x-(-10y)
Step-by-step explanation:
-5x-(-10y)
-5x+10y
Answer:
-5x – (-10y)
Step-by-step explanation:
-5x – (-10y) is the same as -5x+ 10y. The two negatives will cancel out and become a positive.
Difference between 3/5 of Raman's present age and his age 4 years ago is zero. What will be his age after 5 years?
Answer: 15 years
Step-by-step explanation:
Given
Difference between [tex]\frac{3}{5}[/tex] Raman's present age and his age 4 years ago is 0
Suppose Raman's present age is [tex]x[/tex]
So, we can write
[tex]\Rightarrow \dfrac{3x}{5}-(x-4)=0\\\Rightarrow \dfrac{3x-5x}{5}+4=0\\\Rightarrow \dfrac{-2x}{5}+4=0\\\Rightarrow x=\dfrac{20}{2}=10[/tex]
His age after 5 years is [tex]x+5=15\ yr[/tex]
The equation t= 6 + wrepresents the relationship between the number of weeks and the total amount saved.
TRUE OR FALSE
AND WHY
Answer:
hello my followers and my
there yall go pls do this for me and thanks
Answer:
area= l X w
are=20
4 x 5= 20
volume=l x w x h
20 x 5
20 x 5= 100
volume=100
Step-by-step explanation:
Answer:
100, multiply the area and the height to get the volume. 20 x 5 = 100.
12. The table of values below describes a quadratic relation. Find the missing value and include calculations that demonstrate that this is the correct value.
Answer:
The quadratic equation is;
y = 3x^2-7x + 5
when x = 4, y = 25
Step-by-step explanation:
Mathematically, the general form of a quadratic equation is;
y = ax^2 + bx + c
From the first point, we have that x = 0
Thus;
5 = a(0)^2 + b(0) +c
c = 5
Now, in a case when x is 2
3 = a(2)^2 + b(2) + 5
3 = 4a + 2b + 5
4a + 2b = -2 ••••••(i)
when x = 6
71 = a(6)^2 + b(6) + 5
66 = 36a + 6b ••••••(ii)
From equation i,
2b = -2-4a ••••(iii)
we can rewrite equation ii as
66 = 36a + 3(2b)
Substitute iii into ii
66 = 36a + 3(-2-4a)
66 = 36a - 6 - 12a
66 + 6 = 36a -12a
24a = 72
a = 72/24
a = 3
Recall;
2b = -2-4a
2b = -2-4(3)
2b = -2-12
2b = -14
b = -14/2
b = -7
So the quadratic equation would be;
y = 3x^2 -7x + 5
Now let us test;
when x = 10, y = 235
That would be:
y = 3(10)^2 -7(10) + 5
y = 300 - 70 + 5
y = 235
This shows that the derived quadratic equation is correct
Now, when x = 4; we have it that;
y = 3(4)^2 -7(4) + 5
y = 48 -28 + 5
y = 20 + 5 = 25
please help meee!!!!!!!
Answer:
x+8 +=98
Step-by-step explanation:
x + to 90 so 98
Answer:
3 3/8 pounds.
Step-by-step explanation:
That is the one with three x's.
Total weight = 3 * 1 1/8
= 3 3/8.
Mason wants to play with Maliyah's Doll House, but first he needs to stop at the clubhouse. If all
three stops are in the shape of a triangle, which of the following distances would NOT be an option?
Answers :
5 6 9 city blocks
6 8 14
7 9 10
8 15 17
Answer:
B. 6, 8, 14 city blocks
Step-by-step explanation:
Out of the 4 options, the distances 6 8 14 would not be an option.
What is triangle inequality?Triangle inequality states that the sum of any two sides in a triangle is always greater than the third side.
A)5+6>9
6+9>5
5+9>6
So the triangle is possible.
B) 6+8=14 while the condition is that the sum of any two sides in a triangle is always greater than the third side i.e 6+8 must be greater than 14.
So, the triangle is not possible.
Similarly, C and D are possible triangles.
Hence, out of the 4 options, the distances 6 8 14 would not be an option.
To get more about triangles visit:
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