Answers
Answer:
•12.12
•56.92
Step-by-step explanation:
•Sin 30° = x ÷ 14√3
x=14√3 *Sin30
x=7√3
x=12.12
•Tan30°=6√3÷x
x=6√30 ÷Tan 30
x=18√10
x=56.92
Related Questions
The speed of sound (shockwave) in an explosion is 100mph. How many seconds does the shockwave reach 2km away?
Answers
Answer:
t = 44.73 s
Step-by-step explanation:
Given that,
The speed of a sound wave, v = 100 mph = 44.704 m/s
We need to find the time taken by the shockwave to reach 2 km i.e. 2000 m
We know that,
Speed = distance/time
So,
[tex]t=\dfrac{d}{v}\\\\t=\dfrac{2000}{44.704}\\\\t=44.73\ s[/tex]
So, it will take 44.73 seconds to reach 2 km.
Which expression is equivalent to 0.06h +h+0.85h?
Answers
Answer:
1.91h
Step-by-step explanation:
0.06h+h+0.85h
1.91h
Answer:
The first one asdfghjkfruyctdf
Step-by-step explanation:
Which is NOT true about a direct proportion?
Answers
Answer:
Because it is acorrding to question answer
Answer:
Its graph must have a slope of 1
Step-by-step explanation:
1.75x+1.25y=2
7x+5y=9
how many solutions does this system of equations have?
Answers
Answer:
Step-by-step explanation:
1.75x+1.25y=2 Multiply this equation by 4
7x + 5y = 8
7x+5y=9
As you can see, the xs and ys have the same coefficient. These lines are parallel. There are NO solutions. Just to show you that, here is a graph.
What is the area of the parallelogram?
Answers
Answer:
78.66cm squared
Step-by-step explanation:
6.90 x 11.40
How many real number solutions does 4x^2+2x+5=0 have?
Answers
f (x) = -(x – 3)2 + 1
Vertex:
AOS:
Direction of opening:
Domain:
Range:
Solutions:
Answers
AOS: x=3
Direction of opening: downward
Domain: All real numbers
Range: ySolutions: 2 and 4
I’m assuming the 2 is to square what’s in the parentheses
Find the missing ratio (n) from the two equivalent ratios 6:15 = n:35.
Answers
Answer:
Solution :-[tex] \sf \: 6 \times 35 = 15 \times n[/tex]
[tex] \sf \: \dfrac{6 \times 35}{15} = n[/tex]
[tex] \sf \: 14 = n[/tex]
Value of n is 14
5. A bag contains 5 blue marbles, 4 yellow marbles and 1 red marble. What 1 point
is the probability of selecting a yellow marble, replacing it, then selecting a
blue marble?
Answers
Answer:
()
Step-by-step explanation:
Use nCr to figure this out, plug in the numbers and probabilities and solve
Answer this please thank you
Answers
Answer:
The second graph
Step-by-step explanation:
hope it help
Aarav and Bahir are running laps around a 400-meter circular track. They started together and ran in the same direction. Each of them is running at a constant rate. When Aarav completed the first lap, Bahir was already 100 meters ahead of him. How many laps will Aarav complete by the time Bahir reaches him from behind on the track?
Answers
Answer:
4
Step-by-step explanation:
for every 400 meters aarav runs bahir runs 500
when bahir is at 2000 aarav is at 1600
En una muestra de 50 restaurantes de comida rápida, la venta media fue de $3.000, y la desviación estándar, $200. El intervalo de confianza del 95% es
Answers
Respuesta:
(2945.411; 3054.589)
Explicación paso a paso:
Dado ;
Tamaño de la muestra, n = 50
Media, xbar = 3000
Desviación estándar, s = 200
Nivel de confianza, Zcrítico al 95% = 1,96
El intervalo de confianza se define como:
Xbar ± margen de error
Margen de error = Zcrítico * s / sqrt (n)
Margen de error = 1,96 * 200 / sqrt (50)
Margen de error = 54.589
Límite inferior = (3000 - 54.589) = 2945.411
Límite superior = (3000 + 54.589) = 3054.589
(2945.411; 3054.589)
Work out the point of intersection of the lines
2x + 3y = 11 and 2y = 13 – 3x
Answers
Answer:
x = 3.4
y = 1.4
Step-by-step explanation:
2x + 3y = 11
2y = 13 – 3x, then y = (13 - 3x)/2
substitute for y:
2x + 3((13 - 3x)/2) = 11
reduce:
2x + (39 - 9x)/2 = 11
reduce:
2x + 19.5 - 4.5x = 11
subtract 19.5 from both sides of the equation and combine for x:
-2.5x = -8.5
divide both sides by -2.5:
x = 3.4
y = (13 - 3(3.4))/2 = (13 - 10.2)2 = 1.4
Which set of coordinates will provide the verticals for the translation of HJK 4 units down
Answers
Answer:
oh ___ dam thats the ____ that I want
Please explain your steps when solving the equation:
-3b + 6 = 18
Answers
Answer:
b=-4
Step-by-step explanation:
-3b+6=18
-3b=12 (subtracted 6 from both sides)
b=-4 (divided both sides by -3)
-6 =-6
-3b = 12
-3b/-3 =12/-3
B = -2
Is the sum of 3+ The Square root of 7 a rational number?
Answers
Answer:
yes
Step-by-step explanation: i did a test like 2 weeks ago and this was a question and i got it right
koalas sleep for 20hours a day. For what fraction of a day do koalas sleep?
Answers
Answer:
5/6
Step-by-step explanation:
There are 24 hours a day and a koala sleeps for 20 hours of it:
20/24
5/6
Answer:
they sleep for 20/24 percent of the day or 4.8 percent.
Step-by-step explanation:
Solve for x.
4x - 4 <8 AND 9x + 5 > 23
Chose 1 answer:
A) 2 3
C) There are no solutions.
D) All values of x are solutions.
Answers
Answer:
C
Step-by-step explanation:
4 (2) - 4 < 8
4 < 8 (true)
9 (2) + 5 > 23
23 > 23 (not a true statement)
4 (3) - 4 < 8
8 < 8 (not a true statement)
9 (3) + 5 > 23
32 > 23 (true)
The area of a right triangle is 3gh. Find the height if the base is 3gh.
Area of a triangle: A = 1/2bh
Answers
Answer: height is 2
Step-by-step explanation:
A = 1/2bh
A = 3; b (base) = 3. Substitute these values in the formula and solve.
3 = 1/2*3*h = 3/2 h
h = 3 * (2/3) = 2
Answer:
Height = 2
Step-by-Step Explanation:
So, I'm not sure if "gh" is a measurement. But I'm thinking it should be solved like this.
Area = 3gh
Base = 3gh
Height = ?
Plug & Chug
3gh = 1/2 (3gh)(h)
2/1 · 3gh = 1/2 (3gh)(h) · 2/1
[tex]\frac{(2)(3gh)}{(3gh)\\}[/tex] = [tex]\frac{(3gh)(h)}{(3gh)}[/tex]
h = [tex]\frac{(2)(3gh)}{(3gh)}[/tex]
h = 2
Apologies if this is wrong, but I hope this helped!
What two numbers have a product of -72 and a sum of 1?
Answers
Step-by-step explanation:
-8 and 9
As 9 × (-8) = -72 and 9 + (-8) = 1
Hope my answer helps !
pls help with this !!
Answers
Answer:
25.12 so the nearest 10 is 25.10
Angles in triangles
Question is in the photo
Answers
Answer:
JSJXJX
Step-by-step explanation:
CF<DC<DE<DF<FE
The square below represents one whole.
What percent is represented by the shaded area?
%
Answers
Answer:
77%
Step-by-step explanation:
b r a i n l i s t to the first person to answer
A rectangle has an area of 1,280.64 square miles and a base of 36.8 miles. What is the height?
Answers
Answer:
34.8 miles
Step-by-step explanation:
First, we know that Area = Length * Width. Let's plug in those values.
1,280.64 = x * 36.8 (I put the variable "x" there since we don't know what it is)
Now, solve for x (we want to have x by itself, so divide both sides by 36.8)
34.8 = x
Now that we know that the width of it is 34.8 miles, let's check our work.
34.8 * 36.8 = 1,260.64
This equation IS true, so:
The width of the rectangle is 34.8 miles. Hope this helps!
True or False
Is 2-1 = 21 ?
Answers
Answer:
false
Step-by-step explanation:
Help due soon!!!!!
If the equation (x+10)x=0 is true, which statement is also true according to the zero product property?
Group of answer choices
only x=0
either x=0 or x+10=0
either x^2=0 or 10x=0
only x+10=0
Answers
Answer:
: either x=0 or x+10=0
Step-by-step explanation:
You conduct a survey in your school to find out each student's favorite fast food restaurant, and you want to create a graph showing the percentage of students who chose each restaurant. Which is the appropriate graph? stem-and-leaf
circle graph
line graph
scatter plot
Answers
Answer:
circle graph
Step-by-step explanation:
A circle graph (pie graph) will show us the percentage the best way.Answer:
answr is circle graph
Step-by-step explanation:
86 + p = 96 what is the answer
Answers
Answer:
p=10
Step-by-step explanation:
86+p=96
Subtract 86 from both sides
86+p-86=96-86
Simplify;
p=10
Geometry - Law of Sines question #17. Please help, I am stuck.
Answers
By the law of sines, m∠EFG is such that
sin(m∠EFG) / (8 in.) = sin(m∠G) / (7.5 in)
so you need to find m∠G.
The interior angles to any triangle sum to 180°, so
m∠DEG = m∠D + m∠G + 43°
m∠DEG + m∠D + m∠G = 2 (m∠D + m∠G) + 43°
180° = 2 (m∠D + m∠G) + 43°
137° = 2 (m∠D + m∠G)
68.5° = m∠D + m∠G
But ∆DEG is isosceles, so m∠D = m∠G, which means
68.5° = 2 m∠G
34.25° = m∠G
Then
sin(m∠EFG) = (8 in.) sin(34.25°) / (7.5 in)
m∠EFG ≈ sin⁻¹(0.600325) ≈ 36.8932°
You deposit $500 in an account that pays 4% interest compounded yearly. What is the balance after 5 years?
Answers
Answer:
100$
Step-by-step explanation:
Since [tex]4%[/tex]% of [tex]500[/tex]=[tex]20,[/tex] then [tex]20x5=100[/tex]
