Answer:
-4
Step-by-step explanation:
3 Prove that
cos130°+cos 110+ cos10=0
We know, cos A + cos B = 2cos(C+D)/2 × cos(C - D)/2
So,
cos 130 + cos 110 + cos 10
cos 130 + 2cos (110+10)/2 × cos( 110-10)/2
cos 130 + 2cos 60 × cos 50
cos ( 180 - 50 ) + 2cos60 cos 50
We know, cos ( 180 - A ) = -cos A
2cos 60 cos 50 - cos 50
Also, cos 60 = 0.5
2×0.5 cos 50 - cos50
cos 50 - cos 50
0 = RHS.
Hence proved
What is the combined length of all the buttons longer than 1 inch
Answer:
Where is the problem to solve?
Step-by-step explanation:
Armenia is baking 24 batches of brownies for the bake sale. Each batch of
brownies takes 2 4/5cups of flour. What is a reasonable estimate of the
amount of flour that she will need to bake all twenty-four batches of
brownies?
A.96
B.72
C.60
D.48
Answer:
72
Step-by-step explanation:
2x24=48
4/5≈1
1x24=72
so its 72
jenna has a piece of paper that is 84 square inches in area. it is 10 1/2 inches long. what is the width of the piece of paper in square inches
Answer: the paper is 8 inches
Step-by-step explanation: I'm sure the answer is 8.
Which is the fraction for 0.21?
Answer:
21/100
Step-by-step explanation:
f a car travels 400 m in 20 s, how fast is it going?
Answer:
20m/s
Step-by-step explanation:
Given, s=400m
t=20s
Required, v=?
v=s/t
=400m/20s
=20m/s
Simply: -51/4 - (-71/2)
Answer:
Exact form:
193/4
Decimal form:
48.25
Mixed number form:
48 1/4
Step-by-step explanation:
Answer:
48 1/4
Step-by-step explanation:
i hope this is correct
what is 3 times 3???
Answer:
9
Step-by-step explanation:
3×3=9
3+3+3=9
Yeeeeejsndnnsjx
j - 2.5 = 93.9
What is the value of j?
Answer:
j = 96.4
Step-by-step explanation:
Step-by-step explanation:
j - 2.5 = 93.9
j=93.9+2.5
j=96.4
The Bailey's spent $18.00 for 4 two-liter sodas for the birthday party this weekend. What is the number of soda bottles that could be bought with $45.00?
Answer:
7
Step-by-step explanation:
The nth term of a sequence is n²+1. What is the 9th term?
Simplify (65)2
O A. 670
O B. 67
C. 65
D. 63
*Max is writing a novel. He has written 240 pages and
would like to have a complete story that is 360 pages long.
How many pages will he have to write per day in
order to have a finished rough draft in...
One week?
Round to the
nearest hundredth.
Show work here or insert a picture of your work
Two weeks?
Round to the
nearest hundredth.
Show work here or insert a picture of your work
One month
(30 days)?
Answer:
Step-by-step explanation:
360-240=120
120/7=17.14
120/14=8.57
120/30=4
Pls, help me with this problem. HELP!!!!! (it's not that hard I don't know why I am frecking out)
Answer:
Step-by-step explanation:
b/c fractions are confusing :D, put them all in 12th to make it easier
4/12, -8/12, -9/12, -5/12, 1 3/12, 1 5/12
now stick them in order
-9/12, -8/12, -5/12 , 4/12 , 1 3/12, 1 5/12
now put them back to reduced form
-3/4, -2/3, -5/12, 1/3 , 1 1/4, 1 5/12
:) better?
Hw help please ASAP
+10PTS
Answer:
[tex]y = \frac{1}{2} x + 3[/tex]
Step-by-step explanation:
Remember that:
[tex]Slope \: = \frac{rise}{run} [/tex]
Answer:
½x+3
Step-by-step explanation:
slope = rise/run plus y-intercept
Please help....... its easy
Answer:
It would start 2 squares across the line.
Step-by-step explanation:
hope this helps
have a great day!
please mark brainliest.
while I cannot flip it for you, you basically just have to see how many spaces each point is from the line, and then put the same letter on the other side and connect the shapes. Hope this helped!
hey any help is appreciated
Answer:
a positive querlashon the lower they studied the lower grade they got
Step-by-step explanation:
i gicveeeeee brainlilstttt
Answer: (-2,6)
Step-by-step explanation:
Hope this helps ;)
The expression x3(x−y)7−y3(x−y)7 can be rewritten as (x−y)m(x2+y2+nxy). What is the value of m ?
Answer:
m = 8Step-by-step explanation:
Given the expression:
x³(x−y)⁷−y³(x−y)⁷
This can also be written as (x³-y³)(x-y)⁷
(x³-y³)(x-y)⁷= (x-y)⁷ (x³-y³)
Expand (x³-y³)
x³-y³ = (x-y)(x²+xy+y²)
Substitute back into the original expression:
(x-y)⁷ (x³-y³) = (x-y)⁷(x-y)(x²+xy+y²)
(x-y)⁷ (x³-y³) = (x-y)⁸(x²+xy+y²)
(x-y)⁷ (x³-y³) = (x-y)⁸(x²+y²+xy)
Comparing the result with (x−y)^m(x^2+y^2+nxy).
(x-y)⁸ = (x-y)^m
m = 8
Also:
nxy = xy
n = xy/xy
n = 1
Hence the value of m is 8
The value of m is 8
The expression is given as:
[tex]x^3(x-y)^7-y^3(x-y)^7[/tex]
Factor out (x - y)^7 in the above expression
[tex]x^3(x-y)^7-y^3(x-y)^7 = (x^3 - y^3)(x -y)^7[/tex]
Expand out (x^3 - y^3) as the difference of two cubes
[tex]x^3(x-y)^7-y^3(x-y)^7 = (x-y)(x\²+xy+y\²)(x -y)^7[/tex]
Combine the common factors
[tex]x^3(x-y)^7-y^3(x-y)^7 = (x\²+xy+y\²)(x -y)^8[/tex]
Rewrite the expression as:
[tex]x^3(x-y)^7-y^3(x-y)^7 = (x -y)^8(x\²+xy+y\²)[/tex]
The expression format is given as:
[tex](x-y)^m(x^2+y2^+nxy)[/tex]
So, we have:
[tex](x-y)^m(x^2+y2^+nxy) = (x -y)^8(x\²+xy+y\²)[/tex]
By comparison, we have:
[tex]m = 8[/tex]
Hence, the value of m is 8
Read more about expressions at:
https://brainly.com/question/4344214
3) When solving a one-step equation, we apply the inverse operation to the value on the _____ of the variable.
Answer:
To solve one-step equations, we do the inverse (opposite) of whatever operation is being performed on the variable, so we get the variable by itself. The inverse operations are: Addition and subtraction. Multiplication and division.
Step-by-step explanation:
by it self.
Lamar rented a truck for one day there was a base fee of 18.95 and there was an additional charge of 93 cents for each Miles driven. Lamar had to pay 154.73 when he returned the truck . For how many miles did he drive the truck
Answer:
146 miles
Step-by-step explanation:
Hope this helps!
Answer:
146 miles
Step-by-step explanation:
He payed 135.78 total for gas. Take that number, and divide it by .93 to find out how many miles he drove.
please answer asap no trolls
12 divided by the sum of h x and 3
Answer:
12
------
hx+3
Step-by-step explanation:
I know math
Gabe deposits $2,500 into each of two savings accounts.
Account ONE earns 4% annual simple interest.
Account TWO earns 4.5% interest compounded annually.
What is the sum of the balances of Accounts ONE and TWO at the end of 3 years?
Answer:
637.5 I think it's right
Step-by-step explanation:
2,500x.04=100x3=300
2,500x.045=112.5x3=337.5
300+337.5=637.5 interest
2,500x2+637.5=5,637.5
Answer:
$5,612.16
Step-by-step explanation:
Part 1) Account I earns 4% annual simple interest.
we know that
The simple interest formula is equal to A = P (1+rt)
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
in this problem we have:
t = 3 years
P = $2,500
r = 4% = 4/100 = 0.04
substitute in the formula above
A = 2,500 (1 + 0.04 * 3)
A = 2,500 (1.12)
A = $2,800
Part 2) Account II earns 4% interest compounded annually.
we know that
The compound interest formula is equal to: A = P (1 + r/n)nt
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
t = 3 years
P = $2,500
r = 4% = 4/100 = 0.04
n = 1
substitute in the formula above
A = 2,500 * (1 + 0.04/1)3
A = 2,500 * (1.04)3
A = $2,812.16
Part 3) What is the sum of the balances of Account I and Account II at the end of 3 years?
Sum the two final investment:
$2,800 + $2,812.16 = $5,612.16
Please help!!!!!!!!!!!!!!!!!!!!!
Answer:
its 7
Step-by-step explanation:
Please help with this as well
Answer:
Option D is the correct answer
Step-by-step explanation:
w = 35°based on the definition of vertical angles.
the probability of getting less than 3 in a single throw of a dice is
Answer:
There are two numbers {1,2} which is less than 3. so, required probability P(E) = 2/6 = 1/3.
Step-by-step explanation:
hope this helps
5 Gross Pay is $432. Finat a the social security tax, b the medicare tax and c the
total deductions
Answer:
Hope this helps!
Step-by-step explanation:
what is the solution set of the inequality x+2/2≥-7-x/2
Answer:
[tex]x\geq - \frac{16}{3}[/tex]
Step-by-step explanation:
x +2/2 ≥ -7 - x/2
= x ≥ -16/3 (sign doesn't change since you didn't divide by a negative number).
Ace Carlos
Answer:
[tex]x\geq \frac{-16}{3}[/tex]
Step-by-step explanation:
One gram of fat has 9 calories. A one-ounce slice of
American cheese has 9 grams of fat. The slice has a total
of 110 calories. What percent of the calories in the cheese
is from fat? Round to the nearest whole percent.