Step-by-step explanation:
e = 20sin(πt/4 - π/2)
= 20[(sinπt/4)(cosπ/2) - (cosπt/4)(sinπ/2)]
Used sin(x - y) = sinxcosy - cosxsiny.
= 20[0 - cosπt/4]
Since cosπ/2 = 0 and sinπ/2 = 1.
= -20cosπt/4.
pls only answer if you know it
Answer:
the answer is c the third one
Step-by-step explanation:
Answer:
5/8 in
Step-by-step explanation:
Its the only one that makes sense...
whats the greatest common factor using distributive property of 20 and 30
Answer:
10
Step-by-step explanation:
Please help me fist thank you
Answer:
letter a
Step-by-step explanation:
Answer:
#15 is A
Step-by-step explanation:
a
2. Divide: 12.40 – 5.
Answer:
2.48
Step-by-step explanation:
Answer:
2.48
Step-by-step explanation:
I goog-led it
Is the equation x = 9 a linear equation? Does it describe a linear function? Explain.
No.
x = 9 isn't classified as a function at all. When you graph x instead of y. You will get a vertical line which isn't even a function.
HELP FAST i'll mark you brainliest One bus is 5 miles east and 2 miles north of the bus terminal. Another bus is 3 miles west and 4 miles south. How far apart are the buses?
Answer:
7 miles i think not sure cause it could also be 14 so like......
Step-by-step explanation:
Answer:
10.296 Miles
Step-by-step explanation:
9x9=81
5x5=25
25+81=106
sqr 106= 10.296
8ft,14ft,16ft what type of triangle do this numbers make
Answer: Scalene triangle
Step-by-step explanation:
A Scalene triangle is a type of triangle that all the three sides are not thesame. Here, the sides are 8ft, 14ft, 16ft. This shows that's it's neither and equilateral Triangle that has all sides equal or an isosceles triangle that has two sides equal. Also, it's not a right angle triangle.
Therefore it's an Scalene triangle
Find x please. Thank you!!! :)))
Answer:
x = 27°Step-by-step explanation:
2x + 2x + 72° = 180°
4x = 108°
x = 27°
Answer:
x = 27
Step-by-step explanation:
Because lines AC and DE are parallel, angles ABD and CDE are equal. Therefore angle BDE is 72. Angle ADF is a straight angle, so 2x + 72 + 2x = 180, or 4x = 108, 2x = 54 and x = 27.
What is the value of x HELPPPPPPPPPP PLZZZZZZZZZZZZ
Answer:
Answer is D.
30
Step-by-step explanation:
all angles add up to 180(applys to triangles)
13
Match the given slope (m) and y.Intercept (b) with the equation of the line in slope intercept form
Slope, m. 2. y Intercept, b = 5
DRAG & DROP THE ANSWER
Slope, m = 3. y intercept, b - 7
OH
y = 122
Slope, m - 25. y-intercept, b = 0
O!
y = 252
Slope, m = 12. y Intercept, b=0
y = 10 + 15
Slope, m = 10. y-Intercept, b = 15
y = 2x + 5
y = 3x + 7
Answer:
is y=3x+7is the answer of this question
The slope intercept form of equation: y = mx + b
Therefore:
m = 2 and b = 5 ⇒ y = 2x + 5
m = 3 and b = 7 ⇒ y = 3x + 7
m = 3 and b = -7 ⇒ y = 3x - 7
m = 25 and b = 0 ⇒ y = 25x
m = -25 and b = 0 ⇒ y = -25x
m = 12 and b = 0 ⇒ y = 12x
m = 10 and b = 15 ⇒ y = 10x + 15
y = 122 ⇒ y = 0x + 122 ⇒ m = 0, b = 122
y = 252 ⇒ y = 0x + 252 ⇒ m = 0, b = 252
y = 10 + 15 ⇒ y = 0x + 25 ⇒ m = 0, b = 25
y = 2x + 5 ⇒ m = 2, b = 5
y = 3x + 7 ⇒ m = 3, b = 7
I'm not sure what you wanted so pick what you need.
Which expression is equivalent to (–3y – x) – (5y – 8x)?
–8y – 8x
–8y + 7x
2y – 7x
8y + 8x
Answer:
2y - 7x
Step-by-step explanation:
Just took the test on edge
What is the slope of the line that passes through the points (1, 6) and (4, 9)?
Answer:
use the formula y2 - y1 /x2 - x1
y1 = 6
y2 = 9
x1 = 1
x2 = 4
Step-by-step explanation:
9 - 6/ 4 - 1
3/3
=1
slope is 1
Answer:
[tex]m=1[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (1, 6)
Point (4, 9)
Step 2: Find slope m
Substitute [SF]: [tex]m=\frac{9-6}{4-1}[/tex]Subtract: [tex]m=\frac{3}{3}[/tex]Divide: [tex]m=1[/tex]Masada sold his radio to Agouti at sh 63,000 making a loss of 10%.
Agouti later sold the radio to Cheney at a profit of 15%.
(a) Calculate the amount of money Masada paid for the radio?
(03 marks)
Given:
Selling price of radio for Masada = 63,000
Loss = 10%
To find:
The amount of money Masada paid for the radio?
Solution:
Let x be the amount of money Masada paid for the radio.
According to the question,
[tex]x-10\%\text{ of }x=63000[/tex]
[tex]x-\dfrac{10}{100}x=63000[/tex]
[tex]x-0.1x=63000[/tex]
[tex]0.9x=63000[/tex]
Divide both sides by 0.9.
[tex]x=\dfrac{63000}{0.9}[/tex]
[tex]x=70000[/tex]
Therefore, Masada paid 70,000 for the radio.
Find the answer to 50% of 180
Evaluate 1 2/3 x 2 5/8
Answer:
the answer to your question is 4 3/8 , hope this helps have a good rest of your day :)
The function f(x)=-a^x +4
will never cross the xaxis if a is positive.
OA. True
OB. False
Can anyone please help me with these sums? I need it fast.
Thanks,
Answers:
2.
a) [tex]5y^{2} z^{2}[/tex]
b) [tex]4x^{2} y[/tex]
a) [tex]3x^{2} +2x+4[/tex]
b) [tex]3x+2[/tex]
c)[tex]x-3[/tex]
3.
a) [tex]2x+3[/tex]
b) [tex]2x^{2} -6x-24[/tex]
4.
a) [tex]4x-20[/tex]
b) [tex]x(3x+2)=3x^{2} +2x[/tex]
I have a feeling I could be wrong for 4 a)
Which of the following is a pair of equivalent radical expressions?
A. √45 and 3√15
B. √ 75 and 3√5
C. √54 and 9√6
D. √180 and 3√20
Answer:
D. √180 and 3√20
Step-by-step explanation:
3√20
= √9√20
= √(9 * 20)
= √180
What is 1,476 divided by 12?
1,476 / 12 = 123.
I just did it in my calculator lol
1,476 / 12 = 123 (12 x 123 = 1476)
write an equation of the line in slope-intercept form
(-5,-1) (3,-9)
Answer:
y = -x - 6
Step-by-step explanation:
y = mx + b
-1 = -5m + b --> b = 5m - 1
-9 = 3m + b --> b = -3m - 9
5m - 1 = -3m - 9
8m = -8
m = -1
Plug back in the first equation.
-1 = -5(-1) + b
-1 = 5 + b
b = -6
Perpendicular lines intersect to form _____________ angles. Fill in the blank with the correct answer. *
0 straight
0 right
0 acute
0 obtuse
Answer:
Right angles,
Step-by-step explanation:
Perpendiculars form right (90 degree) angles.
Hope this helps!
There are two vectors with magnitudes of 10 and 17 and an angle of28 degrees between them, What is the magnitude of the resulting vector?
Answer:
The magnitude of the resulting vector = 14
Step-by-step explanation:
Let say the magnitude of vector A = 10 and the magnitude of vector B = 17
The angle between them is 28°.
Then, that will form a triangle.
Let name the magnitude of the resulting vector to be C.
SO, by using Pythagoras rule:
hypotenuse² = opposite² + adjacent²
17² = 10² + C²
17² - 10² = C²
289 - 100 = C²
189 = C²
C = [tex]\sqrt{189}[/tex]
C = 13.75
C ≅ 14
If the length of the hypotenuse is 10 m and its base leg is 6 m, what is the length of
its remaining leg?
1.a= 12 m
2.a= 8 m
3.a= 9 m
4.a = 10 m
Solve for x: 2x²+3x=2. Please use factoring. Thanks!
Answer:
x = [tex]\frac{1}{2}[/tex], x = - 2
Step-by-step explanation:
Given
2x² + 3x = 2 ( subtract 2 from both sides )
2x² + 3x - 2 = 0
Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.
product = 2 × - 2 = 4 and sum = + 3
The factors are + 4 and - 1
Use these factors to split the x- term
2x² + 4x - x - 2 = 0 ( factor the first/second and third/fourth terms )
2x(x + 2) - 1(x + 2) = 0 ← factor out (x + 2) from each term
(x + 2)(2x - 1) = 0
Equate each factor to zero and solve for x
x + 2 = 0 ⇒ x = - 2
2x - 1 = 0 ⇒ 2x = 1 ⇒ x = [tex]\frac{1}{2}[/tex]
150-5r>87.5 Il mark brainliest
Answer:
r < 12.5
Step-by-step explanation:
Given
150 - 5r > 87.5 ( subtract 150 from both sides )
- 5r > - 62.5
Divide both sides by - 5, reversing the symbol as a result of dividing by a negative quantity.
r < 12.5
Answer:
r<12.5
Step-by-step explanation:
First, we need to isolate the variable so we subtract 150 from both sides.
-5r>-62.5
we then divide by -5 to get the value of x alone. Since this is an inequality and we are dividing by a negative we flip the inequality symbol. Remember to always flip the inequality symbol when dividing by a negative number.
R<12.5
54AB
x 8
-------------
4AB44
A and B are the same numbers? what numbers are a and b representing
Answer: same
Step-by-step explanation:
What is the constant rate of change between x and y in the table below?
Answer:
For the table on Q3, the constant rate of change should be 20(?)
Step-by-step explanation:
I believe the answer should be 20, as each increment in the graph that crosses through 2 whole numbers is by 20, meaning that it goes from (20,5) to (40,10), and so on and so forth.
If this is not the correct table, please respond to this comment and say so. Thanks in advance.
Which of the following functions maps 3 to -5?
O f(x) = -x + 2
O f(x) = x-5
O f(x) = x + 8
O f(x) = 4 – x²
Answer:
F(x)=x-5
Step-by-step explanation:3 to -5.... x values the 3 and then the -5 is already there. PLUS I DID THE TEST
if 6,000 people voted in the election, how many were 18 to 29 years old?
Answer:
This cannot be answered.
Step-by-step explanation:
There is no way to know the age of the voters without specific data.
GIVING BRAINLEST
Which is a zero of the quadratic function f(x) = 9x2 – 54x – 19?
There are two ways, factoring or using the quadratic formula.
To factor, split the linear coefficient into m+n as follows:
m + n = -54 ; mn = (9)(-19) = -171
We can see that m = 3, n = -57.
9x2 – 54x – 19 = 0
9x2 + 3x - 57x - 19 = 0
3x(3x + 1) - 19(3x + 1) = 0
(3x - 19)(3x + 1) = 0
x = 19/3 or x = -1/3.
Or if you want to use the quadratic formula, x = [-b±√(b2 - 4ac)]/(2a), then:
x = [54 ± √((-54)2 - 4(9)(-19))]/[2(9)]
= [54 ± √(2916 + 684)]/18
= (54 ± √3600)/18
= (54 ± 60)/18
= (9 ± 10)/3
= 19/3 or -1/3
[tex]x = 6 \frac{1}{3} [/tex]
Step-by-step explanation:
the easy ways,you just use the calculator for solve your problem,hehe
