Step-by-step explanation:
cos2π/3 = -cosπ/3 = -0.5.
cos(-450°) = cos450° = cos90° = 0.
What are all equivalent expressions to 4w+7w
Answer: 11w
Step-by-step explanation: you can add 4w and 7w since they both have the variable w.
Given that log x = 3 and log y = 5, find log (x^2)(y^2)- log xy
Step-by-step explanation:
logx²y² - logxy
= log(x²y²/xy)
= logxy
= logx + logy
= (3) + (5)
= 8.
The value of logx²y² - logxy when log x = 3 and log y = 5 is 8.
What is a logarithm?The logarithm is the opposite of exponentiation as a function. The exponent to which b must be raised in order to obtain a number x is hence the logarithm of a number x to the base b.
Given:
log x = 3 and log y = 5
logx²y² - logxy
Calculate the above expression as shown below,
logx²y² - logxy = log x²y² / xy
logx²y² - logxy = log xy
logx²y² - logxy = logx + logy
logx²y² - logxy = 3 + 5
logx²y² - logxy = 8
Therefore, the value of logx²y² - logxy when log x = 3 and log y = 5 is 8.
To know more about logarithms:
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I have like 4 or 5 exams next week and each one are 50 questions. Can I use brainly for those?
Answer:
you probably can.
Step-by-step explanation:
I kinda used brainly for my tests, but not all answers were on here. you could ask the question from the exam instead of searching the question
Answer:
I mean why not.....
Step-by-step explanation:
Help please!!! Thank you!!
Answer:
Wow thats long
Step-by-step explanation:
I thinks its b TBH
The numbers 22 and 35 are relatively prime. TrueFalse
Answer: True
Step-by-step explanation:
Answer:
False They are coprime numbersStep-by-step explanation:
I hope it helps ❤❤Find 6% tax of $12.50 *
Your answer
I need the value of X
Answer:
31
Step-by-step explanation:
x+24+4x+1=180
5x+25=180
5x=155
x=155/5=31
Find the missing side length
Round to the nearest tenth
The answer is 15.6
Please show all steps ty
Answer:
x ≈ 15.6
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Trigonometry
[Right Triangles Only] SOHCAHTOA[Right Triangles Only] cos∅ = adjacent over hypotenuseStep-by-step explanation:
Step 1: Identify Variables
Angle Measure = 60°
Adjacent Leg = 9
Opposite Leg = x
Step 2: Solve for x
Substitute [tangent]: tan60° = x/9Isolate x: 9tan60° = xRewrite: x = 9tan60°Evaluate: x = 15.5885Round: x ≈ 15.6Match each decimal with its percent equivalent.
1. 1.5 10%
2. 0.15 15%
3. 0.01 150%
4. 0.1 1%
Answer:
1.5 = 150%
.15 = 15%
.01 = 1%
.1 = 10%
Please give brainliest
Answer:
1.5 = 150%
.15 = 15%
.01 = 1%
.1 = 10%
Step-by-step explanation:
HELP!! ILL GIVE BRAINLIEST!!!! PLS SPSPLSPSLSPSLS
THE answer is...
Tell me you will get 10 points
Answer:
First option: 3 blocks to the right, 5 blocks down
Step-by-step explanation:
Can someone explain how to solve this problem:
-2 |7d| = 14
Hope it helps.....
PLEASE HELP ASAP !! ILL GIVE BRAINLIESTT
Answer:
C
Steps
The A equation is impossible (even if it looks like solvable with quadratic formula)
Have a good day
9514 1404 393
Answer:
A, C
Step-by-step explanation:
The quadratic formula can be used to solve quadratic (2nd-degree) equations. The degree of the equation is the largest exponent of the variable.
The degrees of these equations are ...
A. 2
B. 3
C. 2
D. 3
Equations A and C are quadratic, so can be solved using the quadratic formula.
Зx +1 <10
What is the answer for this
Answer:
x < 3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define Inequality
3x + 1 < 10
Step 2: Solve for x
Subtract 1 on both sides: 3x < 9Divide 3 on both sides: x < 3Here we see that any value x smaller than 3 would work as a solution to the inequality.
Find the GCF (30,45)
Hey there! I'm happy to help!
The Greatest Common Factor is self-explanatory: it is the largest factor that both numbers have in common. Let's look at the factors of each of these numbers:
30: 1, 30, 2, 15, 3, 10, 5, 6
45: 1, 45, 3, 15, 5, 9
We see that the largest number they both have in common is 15, so the GCF is 15.
Have a wonderful day! :D
footpath is to be constructed in a park in the shape of a parallelogram. When a coordinate plane is laid over a map of the park, the vertices of the footpath are (−4, 2), (8, 2), (11, 7), and (−1, 7).
Answer:
35.7Step-by-step explanation:
Step one
Given the coordinates
ABCD with vertices A(−4, 2), B(8,2), C(11, 7), and D(-1, 7).
AB=(−4, 2), (8,2)
BC=(8,2), (11, 7)
CD=(11, 7),(-1, 7)
DA=(-1, 7),(-4,2)
The distance between points AB=
[tex]AB= \sqrt (x_2-x_1)^2+(y_2-y_1)^2[/tex]
[tex]AB= \sqrt (8+4)^2+(2-2)^2\\\\AB= \sqrt 12^2+(0)^2\\\\AB= \sqrt144\\\\AB=12[/tex]
The distance between points BC=
[tex]BC= \sqrt (11-8)^2+(7-2)^2\\\\BC= \sqrt 3^2+(5)^2\\\\BC= \sqrt34\\\\BC=5.8[/tex]
The distance between points CD
[tex]CD= \sqrt (-1-11)^2+(7-7)^2\\\\CD= \sqrt -12^2+(0)^2\\\\CD= \sqrt144\\\\CD=12[/tex]
The distance between points DA
[tex]DA= \sqrt (-4+1)^2+(2-7)^2\\\\DA= \sqrt -3^2+(-5)^2\\\\DA= \sqrt34\\\\DA=5.8[/tex]
Hence the perimeter of the footpath= 12+5.8+12+5.8
=35.7
I need help with number 8
Answer:
I believe the answer is B I had a question like this as well i'm pretty sure its B
Step-by-step explanation:
y varies inversely with x. If x= 1 and y= 3 what is x if y = 0.3
Type your answer...
Answer:
Step-by-step explanation:
hjyr kiknbvcctt t
Simplify 29 ÷ 26.
A. 215
B. 43
C. 2–3
D. 23
Answer:
23
Step-by-step explanation:
Can someone help me ASAP Please !!
Hope this helps! Enjoy your day!
11) Which of the following are examples of the HL Theorem? Select 2. *
Answer:
Step-by-step explanation:
All of them are examples of Hypotenuse Leg Theorem
what is the answer to 36 divided by 48
Answer:
0.75
Step-by-step explanation:
Answer: 36 = dividend
48 = divisor or if ur doing other way 0.75
Step-by-step explanation:
Find the missing of the largest angle in the triangle shown. 15x
24x
21x
Step-by-step explanation:
ummm
How many 1/6 cups servings are in 3/4 cups of popcorn? ( In simplest fraction form)
A) 3/2
B) 5/2
C) 7/2
D) 9/2
Answer:
D) 9/2
Step-by-step explanation:
find the x in the given triangle and at last do the proof...please help
Answer:
x = 42.67
Step-by-step explanation:
the price of a calculator is decreased by 21% and now is £207.77. Find the original price
Answer:
£251.40 (rounded to 1 decimal place)Step-by-step explanation:
20% of 207.77 = 41.554
1% of 207.77 = 2.0777
21% of 207.77 = 41.554+2.007=43.6317
207.77+43.6317 = 251.4017
Round to 2 decimal places because its money = 251.40
FINAL ANSWER / ORIGINAL PRICE : £251.40What is a slope of 3/5 x and a y intercept of -1
Answer: slope = 3/5 and y intercept is (0,-1)
Step-by-step explanation: use the slope and y intercept form y= mx + b
I will give you 5 stars and a brainlist.
Answer:
D.
Step-by-step explanation:
Answer: D.
this is the correct answer! pls give the other person who answered before me brainiest! (trying to help em out lol)
3 people are trading baseball cards Augustin has 1/4 as many cards as Mateo. Mateo has 1/2 as many cards as Amaro. Who has the most cards
Answer:
mateo has more cards
Step-by-step explanation:
1/2 is greater than 1/4 because 1/4 is 1/2 of a 1/2
16. What is the sum of 8x2 +12 - y2
and x2 - 13+8xy?
Answer:
9x2-y2 + 8xy -1
Step-by-step explanation:
9x2 -1 - y2 +8xy
9x2-y2 + 8xy -1
The sum of these two given quadratic function is (9x² - y² + 8xy - 1).
What is a quadratic function?A quadratic function is a function that has a variable with the highest power of the variable is 2.
A quadratic function may contain more than one variable. However, the highest degree of any variable must be 2.
Given, two function are 8x² + 12 - y² and x² - 13 + 8xy.
Therefore, the sum of these two given function are:
(8x² + 12 - y²) + (x² - 13 + 8xy)
= 8x² + x² - y² + 8xy +12 - 13
= 9x² - y² + 8xy - 1
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