Answer:
i)
Step-by-step explanation:
Tan a = 1
Tan A = tan 45
A = 45.
Now,
Tan b = root 3
Tan b = tan 60.
B = 60.
Now ,
Cos a * cos b - sin A * sin B
= cos 45 * cos 60 - sin 45 * sin 60
= 1/root 2 * 1/2 - 1/root 2 * root 3 /2
= 1 /root 2 ( 1/2 - root 3 /2)
= 1/root 2 * 1 - root 3 /2
= 1 - root 3 / 2 root 2.
cot 10° . cot 20°. cot 70°. cot 80°. cot 45° = 1
Answer:
steps below
Step-by-step explanation:
cot 10° * cot 20° * cot 70° * cot 80° * cot 45°
= (cos 10°/sin 10°)*(cos 20°/sin 20°)*(cos 70°/sin 70°)*(cos 80°/sin 80°)* (1)
= (cos 10°*cos 80°)(cos 20°*cos 70°) / (sin 10°*sin 80°)(sin 20°*sin 70°)
= (1/2*(cos60°+cos90°)*1/2(cos50°+cos90°))/(1/2*(cos60°-cos90°)*1/2(cos50°-cos90°)) ... cos90° = 0 cos60° = 1/2
= (1/8*cos50°) / (1/8*cos50°)
= 1
(x-3)(x+3)(x+2)-(x-1)(x²-3)-5x(x+4)²-(x-5)²
Answer:
-5x^3-38x^2-76x-46=0
HELPPPP PLEASEEEE will give brainliest
Answer:
I think it's the 3rd or fourth one. I'm not positive tho
2tanx - 3cotx + 1 = 0
Answer:
475767u5yttuyy
Step-by-step explanation:
phobrovicodibfofiffivonf
3/4 of a number 120 What is three-eights of the number? please answer no point scamming i will give you brainiest
Answer:
3/4 * 120 = 90
3/8 * 120 = 45
Step-by-step explanation:
3/4 of something is the same as multiplying by 0.75 (to do it one way.)
Or you can just divide 120 by 4, then multiply it by 3.
EDIT: I see you're asking for 3/4, then 3/8...
If it's 3/8s you want, it's 45.
Helpppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
Answer:
0.436 x 6
2.616
More info
Step-by-step explanation:
Brainliest or.. else..
What is the slope and y intercept I’m really new to this and need help
Answer:
The y intercept is -1 and the slope is 4/1
Step-by-step explanation:
When you are trying to find the y-intercept, you look at where the line crosses over the y axis. In this case it was at -1.
The slope indicates how many units it is going up/down or left/right. In this case, the distance between each point is up 4, and right 1. so the slope would be 4/1.
I hope this helps :)
Find the missing angle measures. Be sure to show your work in arriving at your answers.
Please help urgently thank you,
Answer:
k=50º
m=90º
Step-by-step explanation:
a line is 180º total
so 130+k=180
k=50
a triangle also is 180º total
so 180-40-k=m
180-40-50=m
90=m
Help me please please pleade help me!!
Answer:
See belowStep-by-step explanation:
#3Given function
f(x) = 2x + 3a) Complete the table. Find the values of f(x) or y:
x = -1 ⇒ f(-1) = 2(-1) + 3 = -2 + 3 = 1x = 0 ⇒ f(0) = 2(0) + 3 = 0 + 3 = 3x = 1 ⇒ f(1) = 2(1) + 3 = 2 + 3 = 5b) Plot the points:
(-1, 1), (0, 3), (1, 5)c. The domain the the set of x- values. Since we connect the points, the domain covers the interval between the endpoints:
Domain: {x | -1 ≤ x ≤ 1}
#4a) The domain is the set of x- values (first number in ordered pairs):
Domain: {x | x = -3, -2, 0, 2, 3}The range is the set of y- values (second in pairs):
Range: {y | y = -3 , -1, 1 } (note, repeats are counted as same)b) Graph by plotting the points:
(-3, -3), (-2, -1), (0, 1), (2, -1), 3, -3)c) The graph is NOT linear as you don't get a straight line if you connect the points
SOMEONE HELP WITH THIS PLEASE!!
Answer:
Step-by-step explanation:
you just have to evaluate the expression and then solve it
8. Negative three times the sum of a number and two is fifteen
Answer:
-3(n + 2)= 15
Step-by-step explanation:
Based on this question, we know that the equation involves multiplication. Here we start our equation with -3!
Then it says "times the sum of a number and two" So let's just say the "number" is "n". The word "sum" means the answer to an addition problem, thus we know that we are adding "n" and 2. Let's put that in parenthesis!
-3(n+2)
And it says "is fifteen" which also means "equals to fifteen"
Therefore, the answer is:
-3(n + 2) = 15
Hope you find this useful :D
Rewrite the equation below so that it does not have fractions
2/3x-5=3/4
Answer:
Step-by-step explanation:
The best way to do this problem is to find the lowest common denominator.
2/3 : 3*2/(3*3)
3/4 : 3*3 / 3*4
Notice what you have done. You have multiplied both denominators by something that gets rid of the denominators, or will when you multiply by 4 * 3 = 12
So multiply the equation by 12
(2/3 x- 5 = 3/4 ) 12
8x - 60 = 9 Add 60 to both sides
8x - 60 = 9 Combine
8x = 69 Divide by 8
x = 69/8
x = 8 5/8
calculate the values of 1999.99 and 6049.44
Answer:
8049.43
Step-by-step explanation:
1999.99 + 6049.44
PLEASE HELP IT’S DUE TMR
you only have to answer F
Answer:
1 bat : 0 hits
Step-by-step explanation:
To get this unit rate all you have to do is divide both sides by 4.
(4/4) : (0/4) = 1:0
We get the same number of hits as in the original problem because 0 divided by any number (other than 0) will always equal 0.
Can I get brainliest please?
HELP PLEASE
-8/15 x = 19/15
What is x?
Answer:
x= -19/8
Step-by-step explanation:
help please I need help
Answer:
a is 16 yards hope this helps
Step-by-step explanation:
g(-4)
if g(x)=x^2 - 4x
[tex]g(-4)[/tex]
[tex]g(x)=x^2 - 4x[/tex]
[tex]g(-4)=(-4)^2-4(-4)[/tex]
[tex]g(-4)=16-4(-4)[/tex]
[tex]g(-4)=16+16[/tex]
[tex]g(-4)=32[/tex]
Answer: g(-4) = 32
if you need help with algbrea
my googl hangouts is
hello
jazlyn
2279 g mail
Answer:
is it jazly 2279 together then g mail?
Step-by-step explanation:
the product of r and 8
Answer:
I believe it'd be 8r.
write the exponential equation given a starting value of 7.5 and a decay rate of 7.5%
Answer:
A used car has a value of $15,250 when it is purchased in 2012. The value of the car decreases at a rate of 7.5% per year.
Write an exponential function that models the value of the car, y, over x years.
To the nearest cent, what will be the value of the car after eight years?
Step-by-step explanation:
Please help me solve this I am begging you
Answer:
Line 1
√7 is between √4 and √9 ⇒ Square root of all termsLine 2
√7 is between 2 and 3 ⇒ Results of the square rootsLine 3
5√7 is between 10 and 15 ⇒ Multiply all terms by 5Given the function f(3) = -2x + 5. What are three possible points?
Answer:
(3,-1)
Step-by-step explanation:
Which two numbers are 4 units from -2?
Answer:
-6 and 2
Step-by-step explanation:
look left and right on number line. count 4 places over going both ways
State the domain and range of the following function.
Answer:
Answer C
Step-by-step explanation:
seeing as how the x coordinates of the points are 2,3,4,6,7, we know that the answer must have these numbers, and only these numbers, as the domain. The only answer that has that is answer C.
The depth of water in a reservoir increases from 14m to 15.75m. Work out the percentage increase.
Answer:
It was a 12.5% water gain
Hello if you answer this question i will post another question giving 100 points
Answer:
ok?
Step-by-step explanation:
Brainliest?Answer:
what's your question even-
180
9. What is the value of x below?
A.
B.
1362
C.
D.
→ K
g
136
90
54
t
Answer:
icifzuez8t
Step-by-step explanation:
f8x8s3w557t6jeflfrjj5xg
z4usti
jayo4i
zirstodtpd
dry
fumc
Write 3.7 as a fraction
Answer:
37/10
Step-by-step explanation:
brainliest plz
for first answering
Answer:
3 7/10
Step-by-step explanation:
️️️️️️️️️️️
Find the surface area of the square pyramid. Round your answer to the nearest hundredth.
A. 175.42
B. 176.42
C. 185.42
D. 192.42
Answer:
175.42
Step-by-step explanation:
surface area of square pyramid is given by:
Area= s^2 + 2(s)(l)
where s is the base and l is the slant height
in given problem, slant height l is not given, so by using Pythagoras theorem finding l:
c^2= a^2 + b^2
= 8^2 + 4^2
= 48.49
c = 6.96348
Now putting values of s=8 and l= 6.96 in first formula
Area= 8^2 + 2(8)(6.96)
= 64 + 111.41
= 175.42
!
Amal and Ji both rent out their food
trucks. The table shows the amounts
Amal and Ji charge per hour to rent their
food trucks.
Answer:
Amal and Ji rent the same amount of per hour but Amal had a starting fee of $75
Step-by-step explanation: