Answer:
Step-by-step explanation:
2π/3 radians is equivalent to
2π 180°
-------- * ---------- = 120°
3 π rad
This angle (120°) is 30° past 90°. The 'opposite side' of the triangle formed by this ray of length 1 is √3 and the 'adjacent side' is 1.
adj side -1
cos 120° is in Quadrant II. cos 120° = --------------- = ---------
hyp 2
√3
and sin 120° = --------
2
If tan 0= -21/20 what is cos 0 in quadrant 2
Please help!!! This is WAY overdue and I need to submit it by tonight or it won't be accepted!!!!
Answer:
D
Step-by-step explanation:
It's the most logical of them all, it can't be A, it wouldn't make sense if it's C, and for D it says 6 if -5<x<-1 and it has the little line on 6 for y, it sounds a little complicated but that's my logic
40 mi
9 mi
What is the length of the hypotenuse?
Answer:
[tex] = \sqrt{ {40}^{2} + {9}^{2} } \\ = \sqrt{1681} \\ = 41 \: mi[/tex]
Which inequality is true?
1.-1.5>-0.5
2.-1/2>0
3.-2.5<-2
4.-1 1/2>1.5
Answer:
option
3 is the correct answer
which is equivalent?
Answer:
A
Step-by-step explanation:
Given
[tex]\frac{x}{\sqrt{2} }[/tex]
Multiply numerator/ denominator by [tex]\sqrt{2}[/tex] to rationalise the denominator
= [tex]\frac{x\sqrt{2} }{\sqrt{2}(\sqrt{2}) }[/tex]
= [tex]\frac{x\sqrt{2} }{2}[/tex] → A
What is the measure of angle GFH?
What is the distance between the points located at 7 and−112 on the number line?
Answer:
The distance beween the points located 7 and 112 on the number line is -7 i hope this is right
Step-by-step explanation:
4x=3x+5 need help with this problem!
Answer:
its isssssssss x=5
Step-by-step explanation:
.......
Answer:
it's 5
Subtract
3
3x
3x
from both sides of the equation
4
=
3
+
5
4x=3x+5
4x=3x+5
4
−
3
=
3
combine the like terms 4
−
3
=
3
+
5
−
3
}{-3x}}=3x+5-3x
4x−3x=3x+5−3x
1
=
3
+
5
−
3
+
5
−
3
Riley's dentist has an aquarium in his office with the dimensions 16 in. By 8.5 in. By 10.5 in. What is the volume of the aquarium?
Answer:
1428
Step-by-step explanation:
I did 16 times 8.5 times 10.5. Good Luck!
Can some one help me with this question its hard :( down below ill give brainliest
Answer:
B
Step-by-step explanation:
It's B
First we multiply the coefficients. 6*3= 18, so we can immediately cross out A and D. Now, c^2 * c is c^3. So, its B.
Hope this helps !!
-Ketifa
Step-by-step explanation:
=>6c²*3c=>18c²+¹=>18c³If you place a 34-foot ladder against the top of a building and the bottom of the ladder is 25 feet from the bottom of the building, how tall is the building? Round to the nearest tenth of a foot.
Answer:
59
Step-by-step explanation:
Since it says round to the nearest tenth of a foot, I might be wrong. But anyways I hope this helps!
The height of the building that has a 34 foot ladder rested on it with a distance of 25 feet is 23.0 feet.
The situation forms a right angle triangle.
What is a right angle triangle?A right angle triangle has one of its angles as 90 degrees. The isdes of the triangle can be found using pythagoras theorem.
Therefore, the length of the ladder is the hypotenuse of the triangle. The distance form the bottom of the ladder to the bottom of the building is the adjacent side.
The height of the building is the opposite side of the triangle. Therefore,
c² = a² + b²
34² - 25² = b²
b = √1156 - 625
b = √531
b = 23.0434372436
b = 23.0
The height of the building is 23.0 feet.
learn more on right triangle here: https://brainly.com/question/23231567
If m 2 = 23° and m3 = 68°, what is m 1?
O
A. 23°
B. 68°
C. 89°
D. 91°
Answer:
i think it is 68 degree i think
Answer:
D 91
Step-by-step explanation:
Add 3 +2 =68 +23=91
Sum of any angle in atringle is 180 (rule)
Then 180-91 =89 (the missing angle in the traingle)
Since the sum of any straight angle is 180 (Therom)
180 - 89 =91
Or
The some of 2 interior angle in a triangle equal to the opposite exterior angle (Therom)
So 68 +23 = 91
A triangle has side lengths 4.9 cm, 7.3 cm, and 8 cm. The angle measures are 36°, 64°, and 80°. What type of triangle is this triangle? please help for 15 points
Answer:
scalene acute triangle
Step-by-step explanation:
By looking at the side lengths, we can see that all of them are different, meaning the triangle is scalene. Next, we can notice that all of the angles are less than 90 degrees, meaning the triangle is acute. Putting this together, we get the triangle is a scalene acute triangle.
What is
2(4x+4)
————
3
X =5
Answer and Step-by-step explanation:
First, distribute the 2 to the 4x and 4.
[tex]\frac{8x + 8}{3}[/tex]
This can be the final answer, or you can have it as [tex]\frac{8x}{3} +\frac{8}{3}[/tex].
I'm not sure about the X =5, but I think it is saying that x is equal to 5, so we will plug 5 in to the equation.
[tex]\frac{8(5)}{3} + \frac{8}{3} \\\\\\ \frac{40}{3} + \frac{8}{3} \\\\\\ \frac{48}{3} = 16[/tex]
When x is equal to 5, 16 is the answer.
#teamtrees #PAW (Plant And Water)
PLZ help me with no links
The circumference of a circle is 21π cm. What is the area, in square centimeters? Express your answer in terms of pi.
Answer:
110.25π sq cm
Step-by-step explanation:
circumference 2πr= 21π cm
so r = 21/2= 10.5 cm
area of circle = πr^2
=π (10.5)^2
=110.25 sq cm
You are investing towards your future. You deposit $18,000 into an account that
pays 2.5% interest. How much money will you have in the account after 5 years?
Answer:
=20250
2.5/100*5+18000
compared to the cost of each share in 1960.
Company
1960 Cost
2010 Cost
Company A
$0.65
$9.75
Company B
$0.25
$3.80
Company C
$0.45
$3.78
The cost of each share of stock in Company A was nothing times as much in 2010.
(Type an integer or a decimal.)
Answer:
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
Step-by-step explajyhgftdcsesdxqadfadrfswfeedfrsdx:
What is the equation of the line that has a slope of 5 and passes through the point (4,7)?
A.y−5x=11
B.7y=5x+4
C.y+13=5x
D.y+5x=3
Answer:
c. y + 13 = 5x
Step-by-step explanation:
y = 5x + b
7 = 5(4) + b
7 = 20 + b
-13 = b
y = 5x - 13
y + 13 = 5x
Answer:
Option C
The answer is y + 13 = 5x
Step-by-step explanation:
Here, (4,7)
x = 4
y = 7
m = 5
Now,
y = mx + b
7 = 5(4) + b
7 = 20 + b
b = 7 - 20
b = - 13
Now,
y = mx + b
y = 5x - 13
y + 13 = 5x
Thus, The answer is y + 13 = 5x
-TheUnknownScientist
What does the expression 5n represents The quotient of 5n and a number The product of 5and a number The sum of 5 and a number The difference of 5 and a number
Answer: The product of 5 and a number
Step-by-step explanation:
The expression 5n represents the product of 5 and a number. For example, let the number be 8. Therefore, the value of the expression will be:
= 5n
= 5 × 8
= 40
The sum of 5 and a number will be:
= 5 + n
The difference of 5 and a number will be:
= 5 - n
HELP PLEASEEEEEEE!!!!!!!!!!!!!!!!
Between which two positive integers does V33 lie?
Answer:
0-1 Integers are whole numbers
Step-by-step explanation:
Tomas wanted to buy a computer priced at $950. He waited for the store's annual clearnace sale and bought the computer for $712.50. What percent was the discount at the clearnace sale?
Answer:
25%
Step-by-step explanation:
Discount is given by x(1-r) = y, where x is the original price and r is the percentage (made into a decimal) that was discounted, while y is the price after the discount.
So, plugging the numbers given in, we have 950(1-r) = 712.50, as we don't know r. This is hard to find, so we replace (1-r) with m (just a random letter).
Therefore, we have 950m = 712.50. To find m, we divide 712.50 by 950, getting m = 0.75.
That is not our answer. Earlier, we subsituted (1-r) for m. Now, we subsitutite it back. m = 0.75 so 1-r = 0.75. Therefore, we get that r, the discount rate, is equal to 0.25, or 25%.
Beatrice has a rectangular swimming pool in her backyard. The dimensions are 16 feet by 8 feet. She decides to build a deck of uniform
width around the pool. Together the pool and the deck will have an area of 384 square feet.
a) write the expression to represent the length and the width of the swimming pool with the deck around it
b) find x, the width of the deck
what is the mode of this data set? 4, 69, 84, 69, 90, 75, 94, 90, 90, 1, 5
Answer:
90
Step-by-step explanation:
90 because it occurs most in the data set.
Answer:
90
Step-by-step explanation:
The mode of a data set is the number that occurs most frequently in the set. To easily find the mode, put the numbers in order from least to greatest and count how many times each number occurs. The number that occurs the most is the mode!
If you know the answer to this question please help!! 7th grade math
Answer: obtuse
Step-by-step explanation:
SHOW WORK PLEASE
This is urgent I need help please please please
Answer:
2.91 units
Step-by-step explanation:
If and only if this is a right triangle, we can apply the some fimctopm to determine the length of side BD:
side BC
tan 20 degrees = ---------------
8
or side BC = 8 tan 20 degrees. Since tan 20 degrees = 0.364 radians,
side BC has length 8(0.364) = 2.91 units
Help, i got the second part but don't understand the first thanks
Answer:
hey how r u please tell me
A scale drawing of a rectangular playground has a length of 30 inches and a width of 20 inches as shown. The scale is 1 inch = 15 feet. What is the area of the actual playground?
10 points
Answer:
Step-by-step explanation:
L x W = A
L = 30 * 15 = 450.
L = 450.
L x W = A
450 x ? = A
W = 20 X 15
W = 300.
L x W = A
450 x 300 = A
A = 135,000
a snail traveled 3/4 mile. a radar gun clocked it at 3/10 of a mile per hour. how many hours will it take to reach 3/4 mile ?
Answer:12/30
Step-by-step explanation:
3/10 divided by 3/4 what is your answer? divide. 3/10 divided by 3/4 is 12/30. Simplify if you need to.
What is reasonable first step that can be used to solve the equation 2(x+6)=3(x-4)+5?
Answer:
Distribute 2 to (x + 6) and 3 to (x-4)
Step-by-step explanation: