Answer:
60
Step-by-step explanation:
At time t=0 seconds, a clock pendulum makes its maximum angle with the vertical, reaching a positive angle of 6 degrees in one minute, the pendulum swings back and fourth 20 times. Which of the following best expresses the angle the pendulum makes with the vertical in degrees as a function of time in seconds?
Answer:
B. θ(t)= 6 cos (2π/3 t)
Step-by-step explanation:
Answer:
B) theta(t)= 6cos (2pi/3 t)
I’m not sure how to explain how I got the answer, but I did get it wrong and B was marked right. I hope this helps!
PLEASE HELPP MEEE QUICK
Answer:
C
Step-by-step explanation:
8•10^3x=1 round to the nearest hundredth
Answer:
0
Step-by-step explanation:
According to PEMDAS: parenthesis, exponents, multiplication, division, addition, subtraction
Do we have parenthesis? NO
Do we have exponents? YES 10^3=10x10x10=1,000
Are new expression is 8x1,000x
Do we have multiplication? Yes 8x1,000=8,000
Are new expression is 8,000x
Which equation represents a line that is
parallel to y=1/2x+ 7
Answer:
yes it is parraell
Step-by-step explanation:
Please help me
The original blueprint for the Morenos' living room has a scale of 2 inches = feet. The family wants to use a new blueprint that shows the length of the living room to be 15 in he's. If the width of the living room on the original blueprint is 6 inches and the length is 9.6 inches, what are the scale and width of the new blueprint?
Answer:
length would be 15 inches, width would be 9.36 inches and the scale would these numbers divided by the number of feet on the original scale... not sure if its correct
Michael wants to save up to buy a new bike that costs $600 using the method described in Problem 2. How many weeks will it take him to reach his goal? Show your work and explain your reasoning to support your answer.
Answer:
Sssssnake ssssssnake sssssnake HAHHAHAHAH HAVE A GOOD DAY MHHHHHHH
Step-by-step explanation:
7 + 6ab - ab - 4
Answer
Answer:
You can't solve for ab, but you can simplify:
3 + 5ab
Step-by-step explanation:
7 + 6ab - ab - 4
7 + 5ab - 4
3 + 5ab
Answer:
8ab
Step-by-step explanation:
7-4+6ab-ab
3+5ab
8ab
PLEASE HELP AGAIN!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!
Solve for x. x - 7.9 = 1.19
Answer:
x = 9.09
Step-by-step explanation:
x - 7.9 = 1.19
Add 7.9 to both sides
x = 9.09
looook below giving brainliest
Answer:
A.
5
4 .
3 . .
2 . . .
1 . . . .
0-9 10-19 20-29 30-39
B.10
C.40%
Step-by-step explanation:
hope u see the dots
WILL MARK BRAINLEST | 15 PTS | graph shows two lines, M and N.
A coordinate plane is shown with two lines graphs. Line M has a slope of 1 and passes through the y axis at negative 2. Line N has a slope of 1 and passes through the y axis at negative 2.
How many solutions are there for the pair of equations for lines M and N? Explain your answer.
Source
StylesFormat
Answer:
there are many solutions. when there are two points with one point that intersects, there is one solution. when there are two lines that are parallel, there is no solution. when there are two lines that are the same, there are infinitely many solutions.
Step-by-step explanation:
hope this helps :)
For the expression, combine like terms and write an equivalent expression with fewer terms 2 (5 + 2x ) + 7 + 4x
Answer:
8x+17
Step-by-step explanation:
Answer:
17x+8x
Step-by-step explanation:
2(5+2x) + 7 + 4x
solve for the parenthesis by multiplying 2x5 and 2 x 2x
10+4x+7+4x
add like terms (the 4x and 4x and the 10 +7)
17+8xround to the nearest tenth 23.459
23.459
/\
|
This is the tenths spot
23.5 since 5 rounds up the 4
---
hope it helps
yay like jazz
bfbfbnxndbbdbfbnfmekdibfnfnnfijvjebbeksi
Use this system of equations to answer the questions
that follow.
4x - 9y = 7
-2x + 3y = 4
Answer:
1. To eliminate x-term, multiply the second by -2
2. To eliminate y-term, multiply the second by 3
Step-by-step explanation:
4x - 9y = 7 (1)
-2x + 3y = 4 (2)
1. To eliminate x-term, multiply the second by -2
-2x + 3y = 4 (2) × 2
-4x + 6y = 8 (3)
4x - 9y = 7 (1)
Add (3) and (1)
6y - 9y = 8 + 7
-3y = 15
y = 15/-3
y = -5
4x - 9y = 7 (1)
4x - 9(-5) = 7
4x + 45 = 7
4x = 7 - 45
4x = -38
x = -38/4
x = -9.5
4x - 9y = 7 (1)
-2x + 3y = 4 (2)
2. To eliminate y-term, multiply the second by 3
-2x + 3y = 4 (2) × 3
-6x + 9y = 12 (3)
4x - 9y = 7 (1)
-6x + 4x = 12 + 7
-2x = 19
x = 19/-2
x = -9.5
4x - 9y = 7 (1)
4(-9.5) - 9y = 7
-38 - 9y = 7
-38 - 7 = 9y
-45 = 9y
y = -45/9
y = -5
Answer:
the first one is 2 the second one is 3
Step-by-step explanation:
Jada has read 3/5 of a book. she has read 75 so far. how many pages are in the whole book?
Answer: Total number of pages is 125
Step-by-step explanation:
If 3/5 of a book is equal to 75, we can conquer that 1/5 of the book is 25 pages, because 75/3=25.
With this we can do 25 x 5 = 125 total pages.
ILL MARK U BRAINLIEST!
Answer:
They are the same
Step-by-step explanation:
Factor. x^2-2x-3 please
Answer:
(x+1)(x-3)
Step-by-step explanation:
i hope this helps :)
elaborar un cilindro de altura 6cm , perímetro de la base 15cm ¿cuánto mide el radio de la circunferencia que trazaron?
am i right? i just want to make sure
Answer:
yes
Step-by-step explanation:
can i have brainliest
Please help as much as possible
Answer:
(In order 1-17)
C,A,D,A,A,D,C,I,C,D,C,I,A,I,I,C,A
Step-by-step explanation:
A=Associative
D=Distributive
I= Identity
C=Commutative
-9 + 4a = 3 – 2a
Solve equation
Answer:
a = 2
Step-by-step explanation:
The value of w varies jointly with x and y, and w = 5 when x = 3/4 and y =2. What is the value of w when x = 4 and y = 3?
Answer:
A ∝ BCD or A = kBCD (k = constant ), then A varies jointly as B, C and D.
Step-by-step explanation:
The value of 'w' when x = 4 and y = 3 is, 40.
What are ratio and proportion?In its most basic form, a ratio is a comparison between two comparable quantities.
There are two types of proportions One is the direct proportion, whereby increasing one number by a constant k also increases the other quantity by the same constant k, and vice versa.
If one quantity is increased by a constant k, the other will decrease by the same constant k in the case of inverse proportion, and vice versa.
Given, The value of w varies jointly with x and y.
Let, w ∝ xy ⇒ w = kxy.
5 = k×(3/4)×2.
5 = (3/2)k.
k = 10/3.
Now, x = 4 and y = 3.
Therefore,
w = (10/3)×4×3.
w = 40.
learn more about proportion here :
https://brainly.com/question/7096655
#SPJ3
Marcia is using base ten blocks to multiply decimals. He is using the flat to represent one whole.
one whole
Which of the following multiplication expressions is Marcia representing below?
Answer:
nice
Step-by-step explanation:
A cylinder has a base diameter of 8ft and a height of 20ft. What is it's volume in cubic ft, to the nearest 10th place?
Answer:
1005.3 ft³
Step-by-step explanation:
cylinder has a base diameter of 8ft and a height of 20ft. What is it's volume in cubic ft, to the nearest 10th place?
Given that:
Base diameter = 8feets
Radius, r = 8/2 = 4 feets
Height h, = 20 feets
Volume of cylinder, V = πr²h
V = π * 4² * 20
V = π * 16 * 20
V = 1005.3096
V = 1005.3096 ft³
The question is in the photo.
Answer:
the first option
Step-by-step explanation:
Answer: x < 4
Step-by-step explanation: To plot an inequality, find the number and go the way the sign is pointing.
In this problem...
The less than sign is pointing left, and the number is 4. We use an open circle because the sign is not equal to. If it was, we would of put a closed circle.
<, or > = Open circle (Not shaded)
≤, or ≥ = Closed circle (Shaded)
I attached a image to proof the answer is correct.
Let me know if you have any questions.
~ Lily, from Brainly.
The area of a closet floor is 12 square feet. Mario will be placing 1/3-square-foot carpet tiles on the entire floor. How many carpet tiles will Mario use?
plz help me!!!!!!! its hard
For no. 1
Diameter (d) = 12 ft
Radius (r) = 12 /2 =6 ft
Area of the circle
= πr²
= 3.14 *6²
= 113.04 ft²
For no. 2
radius (r) = 12 in
Area of the circle
= πr²
= 3.14 * 12²
= 452.16 in²
Hope it helps :)❤
What is the simplified form of 6n-17p-10n-9n
Answer: (x^(2)-4)/(x+2)+(x-3)/(x+2)
Step-by-step explanation:
You might want to check first i could be wrong but i'm pretty sure its write
One printing machine-printed 1800 books in 60 hours this week. A second printing machine printed for 40 hours this week but printed books at twice the hourly rate of the first machine. How many books did the second machine print this week?
2,400
3,600
1,860
1,200
Need help, due ASAP. Please help.
Answer:
a = 36.37 cm
c = 18.19 cm
Step-by-step explanation:
to find a, use tan
⇒ tan = [tex]\frac{opposite}{adjacent}[/tex]
⇒ tan 60 = [tex]\frac{21}{a}[/tex]
tan of 60 is 1.732
⇒ 1.732 = [tex]\frac{21}{a}[/tex]
multiply 21 on both sides
⇒ 1.732 x 21 = [tex]\frac{21}{a}[/tex]x 21
⇒ 36.37 = a
to find c, use sine
⇒ sine = [tex]\frac{oppsosite}{hypotenuse}[/tex]
⇒ sine 60 = [tex]\frac{21}{c}[/tex]
sine of 60 is 0.866
⇒ 0.866 = [tex]\frac{21}{c}[/tex]
muliply 21 on both sides
⇒ 0.866 x 21 = [tex]\frac{21}{c}[/tex] x 21
⇒ 18.19 = c