what is trigonometry
trigonometry is a very common branch of mathematics the word trigonometry means measurement of side of a triangle this branch of mathematics can be used to find the angle of a triangle knowing its side or to find the ratio of side of triangle knowing its angle
fact
angle equals to Arc / radius its unit is radian Radian equals to 180 degree sin, cos ,tan, cot, sec , cosec 6 trigonometric ratio each ratio is written by its first small English laterThe ascending arrangement of 2/3 , 6/7 , 13/21 is
Answer:
[tex] \frac{13}{21} , \: \frac{2}{3} , \: \frac{6}{7} [/tex]
Help me help me please
Answer:
The similar triangles are XYZ and MNP. Therefore, the answer is B.
Fast help for this one
Answer:
a. -5
b. 6254
c. - 1881
d. -1200
Step-by-step explanation:
Sorry,I think you can use your calculator to solve your problem but remember don't forget to follow the rules of numeral operation.
CMIIW
[tex]( - 32) \div 8 \times 2 + 2 - ( - 1) \\ = ( - 32) \div 8 \times 2 + 2 + 1 \\ = - 4 \times 2 + 2 + 1 \\ = - 8 + 2 + 1 \\ = - 8 + 3 \\ = - 5[/tex]
[tex]53 \times ( - 9) - ( - 109) \times 53 \\ = 53 \times ( - 9) + 109 \times 53 \\ = 53( - 9 + 109) \\ = 53 \times 100 \\ = 5300[/tex]
[tex] - 19 \times 99 \\ = - 1881[/tex]
[tex]( - 63) \times 12 + 12 \times ( - 37) \\ = 12( - 63 - 37) \\ = 12 \times ( - 100) \\ = - 1200[/tex]
Hope you could understand.
If you have any query feel free to ask.
what is bigger 15/3 or √30
Answer:
√30 is bigger
Step-by-step explanation:
you have to put both of the numbers in a decimal form, once you do that √30 is the bigger number.
if Y varies directly with X, and Y = -5 and X = 7, what is X when Y = -85?
Answer:
X = 119
Step-by-step explanation:
Step 1: Given
Y = -5 X = 7
Y = -85 X = n
Step 2:
-85 ÷ -5 = 17
Step 3:
17 × 7 = 119
Answer:
Y = -5 X = 7
Y = -85 X = 119
n = 119
Pls he’ll I’ll brainlist you
Answer:
3.18, 3.21, 3.23
Step-by-step explanation:
You just nee to find some decimals that round up to 3.2
Answer:
3.20, 3.1745, 3.23543
Step-by-step explanation:
The tenth will be rounded up if the hundredth is 5 or greater.
Jan's age is 3 years less than twice Tritt's age. The sum of their ages is 30. Find their ages.
Answer:
well, whats the answer choices?
Answer:
x+2x-3=30
3x-3=30
3x=33
x=11
tritt is 11
2(11)-3 =22-3 = 19
jan is 19
Step-by-step explanation:
hope that helps>3
Tell of the solution to the following equation. Explain your answer. 4(x + 3) - 4 = 8x + 10 - 4x
evaluate each expression for x=3 and y=2
x+7
8-y
Step-by-step explanation:
1)x+7
3+7102)8-y
8-26hope it helps.stay safe healthy and happy...What is the product of (7/8 ) (-16) (-7) (-1/14)
A . -7
B . - 9/16
C . -1/7
D . 23/12
Answer:
I believe its A.
Step-by-step explanation:
a car drives 5km in 4 minutes. what is the speed of the car in kilometers per hour
Answer:
810 km/h
I hope it's helps you
48 points....which is equivalent?
Answer:
I think its b and c but I might be wrong let me check again
Step-by-step explanation:
Answer:
Option 2 and Option 3 is correct
Since u helped me it's the least i can do
Explanation:
I Promise this is the right answer
(Happy to Help)
(0.<)
RS has endpoint R(2,4) and S(-1,7).what are the coordinates of its midpoint M
Answer:
M={½,11/2}
Step-by-step explanation:
M={x1+x2/2,y1+y2/2}
M={2+-1/2,4+7/2}
M={½,11/2}
Hi gyes what is your favourite subject tell me.My math
Me too!
My other favourite subject is science.
Mine is also Math,lol all ot the answer and you .
I like math because it’s my best subject.
8
Mike studied for 0.8 of an
hour. What is this decimal
as a fraction, in lowest
terms?
Answer:
8/10 = 4/5
Step-by-step explanation:
Find the range of the of the function y= 2/3x -1 when the domain is {-6, -3, 0, 3}
Answer:
(- ∞,0) (0,∞)
Step-by-step explanation:
To find the domain by finding where the equation is defined. The range is the set of values that correspond with the domain...
Tavon has a gift card for $65 that loses $2.50 for each 30-day period it is not used. He has another gift card for $55 that loses $2 for each 30 day period it is not
used
a Write and solve an equation for the number of 30-day periods until the value of the gift cards will be equal
b. What will the value of each card be when they have equal value?
Need help ASAP please
A radio disk jockey needs 3 songs that together play for 10 minutes. His first 2 choices are 3.2 minutes and 3.5 minutes. How long should the third selection be?
Subtract t the first 2 choices from the total time:
10 - 3.2 - 3.5 = 3.3
The 3rd selection needs to be 3.3 minutes long
Answer the following question in brief
Answer:
14810 votes
Step-by-step explanation:
The canidate won, so that means that they were the 7 instead of the 5.
Then you divide 20734 by 7, to see how many votes were for each "1". That's 2962.
Now you know that every "1" is worth 2962. Since the other candidate got 5, you multiply 5 by 2962 which is 14810.
The other candidate got 14810 votes.
Hope that made sense
Answer:
The other opponent that lost got 14 810 votes.
Step-by-step explanation:
Hopefully the picture is clear and understandable
:)
A store has a sale with 30% off every item. When you enter the store, you receive a coupon that states that you receive an additional 30% off. Is this equal to a
60% discount? Explain your answer.
Answer:
No, It is not equal to a 60% discount.
Step-by-step explanation:
Think of this. I go into a store and everything is 50% off and I have a coupon myself that is a 50% off discount for a specific item. It may seem like the item is now free, but it isn't. Imagine the item was $1 before any discount. Then the store took 50% off of the $1, leaving it at $0.50. So now with my discount of 50% off the item I will be taking this 50% off of $0.50 = my final discounted cost of $0.25.
Hope I helped you understand :)
Factorise 3x²+5x-12
Show working out
hi <3
i'm not sure of which method you will have been taught but i'll try to explain the method i was shown.
so, you need to multiply the coefficient of x^2 by the last value
3 x -12 = -36
now, you need to find two values that multiply to make -36 but add to make 5.
9 and 4 would work. it would have to be positive 9 and negative 4, as these would subtract to give the 5 that you need
now we have:
(x - 4)(x + 9)
however, we need to achieve the 3 from somewhere so it needs to be divided somewhere
9 is divisible by 3 so you can divide it there. as 4 cannot divide by 3, you would move the 3 up to be the coefficient.
thus, your final answer would be:
(3x - 4)(x + 3)
hope this helps :)
Answer:
it's gonna be 3(X*2 + 4X - 4)
Step-by-step explanation:
Just factor out 3 from the expression
Simplify the ratio
40 : 28
Please show work! If your able too :)
Answer:
10:7
Step-by-step explanation:
ratios are simply just like fractions!
this ratio (40:28) can be re-written as 40/28
now, you can simplify this to its lowest terms
40/28=20/14=10/7
first in those steps i re wrote the question, then divided by two, then divided by two again !
so, 40:28=10:7
--------------------------------
you can even check this by cross multiplying, since ratios are fractions
[tex]\frac{40}{28} =\frac{10}{7}[/tex]
40x7=28x10
280=280
they are equivalent which means our ratio is correct :)
hope this helped <333
Hitler purchased a watch for Rs. 3500 and sold it to Alex at 5% loss. Find her loss amount and the price at which she sold the watch
Answer:
Loss Amount: 175; Price: 3325
Step-by-step explanation:
You can multiply 3500 by 0.05 (which is 5% in decimal) to find how much is the loss. Then, you subtract the loss from the base price to find the new price.
Answer:
Loss =175, sold = 3325
Step-by-step explanation:
He bough at 3500
So 100 percent is 3500
And they said he had a 5% loss
So in other words, he sold it to Alex at 95% of the price he bought
So
3500 x 95%
3500 x 95/100
=3325
This is the price when Hitler sold it to alex
Now how much did Hitler lose?
3500 - 3325
=175
Given the following measurements, calculate the minimum and maximum possible object. Round to the nearest square whole square unit.
The length of and width of a bookcover 22.2 centimeters and 12 Ret centimeters, respectively.
Answer:
28.3 centimeters and 21 centimeters
Step-by-step explanation:
28.3 + 0.05) cm, so 28.25 cm ≤ length < 28.35 cm.
pleaseeeeee help thanks
Answer:
1) 20
2) -10
Step-by-step explanation:
1) 2x + 3y² =
2(4) + 3(-2)² =
8 +3(4)=
8 + 12 =
20
2) -5(x + y) =
-5(4 + -2) =
-5(2) =
-10
Answer:
we just need to put the values of x,y,z to
x = 4
y = -2
z = 7
1) 2x + 3[tex]y^{2}[/tex]
2(4) + 3([tex]-2^{2}[/tex])
8 + 3 (4)
8 + 12
= 20
2) -5(x+y)
-5 (4 + (-2))
-5 (4 -2)
-5 (2)
= -10
I kind of understand this question, but I'm not sure how to answer it directly, can someone help please.
Can someone help me?
Answer:
30x-43+12x+13=180°(Linear pair)
42x-30=180°
42x=210
x=5°
Please help me i’m lost
==============================================
Explanation:
The degree of separation from the two cities is 30-7 = 23 degrees.
Let's say the point C is at the center of the earth. This would mean angle BCA is 23 degrees.
Any longitude line helps form what is known as a great circle or orthodrome. This is a math term that describes a circle that is centered at the same location as the sphere's center. Imagine that you can wrap a string around the earth and this string only follows this particular longitude line. This string is effectively a vertical equator in a way. The question is: what is the length of this string?
Well that would be the circumference of the circle with radius 3960 miles because the longitudinal circle has the same radius as the sphere.
That approximates to...
C = 2*pi*r
C = 2*pi*3960
C = 24,881.4138164311
C = 24,881.41
So a bit less than 25 thousand miles. I used the calculator's stored version of pi rather than something like 3.14 to get the best accuracy possible. This is the full string's length if we want to travel the entire distance around the globe but stay entirely on this particular longitude line
We don't want the full string's length. Instead, we want just a fractional portion of it. Specifically, we want 23/360 of it because of the central angle of 23 degrees. This will give us the distance between the two cities.
So (23/360)*24,881.4138164311 = 1,589.64588271642
This then rounds to 1589.65 when rounding to the nearest hundredth.
The distance between the two cities is approximately 1589.65 miles
This is comparable to the driving distance from Los Angeles, CA to Houston, TX (approximately 1547 miles).
13/17 as a decimal and a percent
Answer:
53.8462%
1.857
Step-by-step explanation:
Find the 7th term in the geometric sequence 3, 6, 12, ... Show your solution.
a + (n-1) b
= 3 + (7-1) 3
= 3 + 6(3)
= 3 + 18
= 21
Answer:
192
Step-by-step explanation:
given the geometric sequence : 3, 6, 12, ...
T1 = 3
r = 6/3 = 2
T7 =?
T7 = T1. r^(7-1)
= 3 . 2^(7-1)
= 3. 2^6
= 3. 64
= 192
