Answer:
Cos 68
Step-by-step explanation:
Given the expression 2cos² 34° - 1, we are to expression as a single trig ratio.
Let the angle be theta
Recall that sin²theta + cos²theta = 1
sin²theta = 1 - cos²theta ... 1
also Cos 2theta = Cos²theta - sin²theta ... 2
Substitute 1 into 2
Cos 2theta = Cos²theta - (1-cos²theta)
Cos 2theta = Cos²theta - 1 + cos²theta
Cos 2theta = 2Cos²theta - 1
Replace theta with 34
Cos 2(34)= 2Cos²(34)- 1
Cos 68 = 2Cos²(34)- 1
Hence the single trig expression is Cos 68
Which table has a constant of proportionality between y and of 4?
Choose 1 answer:
Answer:
A, because with all of the X values they can be multiplied to get to the y value.
which expression is the same as multiply 3 and 2 add 5 to the product then multiply by 10?
Answer:
3 x 2 = 6 + 5 = 11 x 10 = 110
Answer:2435
Step-by-step explanation:your ervomd
The first rule is add 8, then divide by 2 starting from 0. The second rule is multiply by 2, then subtract 1 starting from 3. What are the first four ordered pairs using the two sequences?
(0, 3), (4, 5), (6, 9), (7, 17)
(0, 5), (4, 7), (6, 9), (7, 17)
(0, 3), (4, 9), (6, 9), (7, 17)
(0, 4), (3, 5), (5, 9), (6, 17)
Answer:
(0, 3), (4, 9), (6, 9), (7, 17)
Step-by-step explanation:
Answer:
A is the anser
Step-by-step explanation:
i know the anser i did it before
Julio has started his very own floral business. He sells centerpieces for $19.50 each. His fixed costs are $500 per
month, and each centerpiece cost $8 to produce.
Determine your break-even point. Suppose you wish to break even by selling only 25 centerpieces. At what price
would you need to sell each centerpiece?
a. Julio must sell 25 centerpieces at $35 each to break even.
b Julio must sell 25 centerpieces at $25 each to break even.
C. Julio must sell 25 centerpieces at $40 each to break even.
d. Julio must sell 25 centerpieces at $28 each to break even.
Please help me fast i need help but please no links
Answer:
dont click that other guys link its an ip grabber
Step-by-step explanation:
This is a cross section of the design of a bookshelf.
Which is the closest to the length,in inches,of the brace indicated by BC in the sketch?
Answer:
25 in
Step-by-step explanation:
[tex]a^{2} +b^{2} =c^{2} \\15^{2} +20^{2} =c^{2} \\225+400=c^{2} \\c^{2} =625\\c=\sqrt{625} \\c=25[/tex]
Find all the values of × for which the statement is true.
[tex] | {x}^{2} + 9| = {x}^{2} + 9[/tex]
Maria walks a round-trip of 0.75 mile to school every day. How many miles will she walk
in 4.5 days?
A 0.3375 mile
B 3.375 miles
C 33.75 miles
D 337.5 miles
please help it due today ?
Let a = the length of a car in meters. Let b = the length of the same car in centimeters. Which number is greater, a or b? Use the drop-down menu to select your answer. a is the greater number.
Answer:
B is the greater number
Help plsssss no links plss
help me with this question
Answer:
A
Step-by-step explanation:
The opposite of 6 IS -6
WILL MARK BRAINLY FOR WHO EVER GETS THE ANSWER FIRST
Answer:
The point was reflected along the y axis.
Step-by-step explanation:
Since they are both negative, it went to Quadrant III. It was previously in Quadrant IV, which means that To get from IV to III we need to reflect the points along the Y axis.
PLEASE ANSWER ASAP FOR BRAINLEST, REALLY EASY QUESTION!!!!!!!!!!!!!!!!!!!!!!!
Answer:
A
Step-by-step explanation:
If is a segment bisector of and AB = 17, find AP.
Question 1 options:
A)
34
B)
8.5
C)
68
D)
17
Answer:
B. 8.5
Step-by-step explanation:
It's a segment bisector which means the other line bisects the direct middle of AB. 17/2 is 8.5, meaning that AP should be 8.5
HELP PLS, The cosine of
Answer:
add/hyp
Step-by-step explanation:
using SOHCAHTOA cosine of an angle A will be adjacent/ hypotenus
10:28
now
MESSAGES
sidneys
I'm so excited to see where my business goes
A cereal company is putting 1 of 3 prizes
in each box of cereal. The prizes are
evenly distributed so the probability of
winning any given prize is always 1/3.
Adam wonders how many boxes he
should expect to buy to get all 3 prizes.
He carried out 32 trials of a simulation and
his results are shown below. Each dot
represents how many boxes it took to get
all 3 prizes in that trial.
3 4 5 6 7 8 9 10 11 12 13
# of boxes purchased
Use his results to estimate the
probability that it takes 9 or more
havas to not all ?
I don’t get what your trying to ask.....
C
Question
What is the absolute value of -36?
-36
оо
6
d
36
Answer:
36
Step-by-step explanation:
Answer:
the absolute value of -36 is
36
A virus jumps from monkeys to humans. The number of people P(t) who have been infected with the virus t weeks after the jump grows logistically. Suppose that initially 10 people are infected with the virus and that the continuous growth rate is 1.78. It is estimated that in the long run approximately 5000 people will have been infected with the virus. The virus is spreading the fastest approximately:________
a. 3.5 weeks after the jump.
b. 4.0 weeks after the jump.
c. 4.5 weeks after the jump.
d. 5.0 weeks after the jump.
e. None of the above is correct.
Answer:
e. None of the above is correct.
Step-by-step explanation:
The general formula for exponential growth is;
P= a(1 + r)^t
Where;
P = total number infected after a given time interval
a = initial number of infected people
r = growth rate of infection
x= time taken in weeks
Hence;
5000= 10(1 + 1.78)^t
5000/10 = (1 + 1.78)^t
500 = (1 + 1.78)^t
log 500 = tlog(1 + 1.78)
t = log 500/log(1 + 1.78)
t = 2.699/0.444
t = 6 weeks
The virus is spreading the fastest approximately 5.0 weeks after the jump.
What is exponential?An exponential equation is an algebraic expression that has an equality and at least one unknown in one of its exponents. To be considered an equation, an expression must have at least one unknown, which is an unknown number represented by a letter, and an equality relationship.
The general formula for exponential growth is;
P= a(1 + r)^t
Where;
P = total number infected after a given time interval = 5000a = initial number of infected people = 10r = growth rate of infection = 1.78x= time taken in weeksHence;
[tex]5000= 10(1 + 1.78)^t\\5000/10 = (1 + 1.78)^t\\500 = (1 + 1.78)^t\\log 500 = tlog(1 + 1.78)\\t = log 500/log(1 + 1.78)\\t = 2.699/0.444\\t = 6 weeks[/tex]
[tex]t=6-1=5 weeks[/tex]
See more about exponential at brainly.com/question/2193820
If Ben goes on a 6-day hike and travels
2 miles each day, how far will he go altogether?
Answer:
12 miles
Step-by-step explanation:
Plz mark brainliest I need three more to rank up thanks.
Answer:
12 miles
Step-by-step explanation:
First we are given the Ben goes on a 6-day hike and that on one day, he travel's 2 miles.
Now, we need to make an equation for this:
6x2=x
6(days)x2(miles per day)=12 miles in 6 days
The answer is 12 miles!
Hope this helps!
7 in
are
9 in
11 in
15 in
Answer: 11 in
Step-by-step explanation: Hope this help :D
WILL GIVE 40 BRAINLY
(08.03)Consider the following pair of equations: y = −2x + 8 y = x − 1 Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form.
Answer:
[tex](3,2)[/tex]
Step-by-step explanation:
The method of variable substitution is a way of solving a system of equations. It involves solving one equation for a variable and then substituting in the expression that represents the value of the solved variable into the other equation. After doing so, one can solve for the unknown variable and then backsolve for the other variable.
[tex]y=-2x+8\\y=x-1[/tex]
In this system, the second equation is already solved for (y), thus one can substitute that expression into the other equation in the system.
[tex]x-1 = -2x + 8[/tex]
Now solve using inverse operations,
[tex]x -1 = -2x + 8\\+2x\\\\3x - 1 = 8\\+1\\\\3x =9\\/3\\\\x = 3[/tex]
Backsolve to find the value of (y), substitute in the value of (x), and solve for the value of (y).
[tex]y=x - 1\\[/tex]
Substitute,
[tex]y=(3)-1[/tex]
Solve,
[tex]y=2[/tex]
Thus, the answer to this system of equations is the following, [tex](3,2)[/tex].
Answer:
(x = 3 and y = 2)
Step-by-step explanation:
Ok, we have our 2 equations...
y = -2x + 8
y = x - 1
Lets solve them
y = -2x + 8 , y = x - 1
They both equal y so I can put them together to equal out. Now our equation is...
x - 1 = -2x + 8
The next step is to get x on one side by itself, so change the negative symbol on -2 to addition...
3x - 1 = 8
Next step is to add 1 on both sides...
3x = 9
Divide both sides by 3...
x = 3
Now to do the other equation, which is easier.
y = x (3) - 1
or
y = 2
Both are solved and we have ...
(x = 3 and y = 2)
If f(x) = 7x +3 and g(x) = (x-4,
what is (fºg)(40)?
Answer: 280x^2 - 1000x - 480
Step-by-step explanation:
((7x + 3) * (x - 4))(40)
use foil
7x^2 - 28x + 3x -12
(7x^2 - 25x - 12) (40)
280x^2 - 1000x - 480
A TV has a listed price of $671.98 before tax. If the sales tax rate is 7.5%, find the total cost of the TV with sales tax included.
Round your answer to the nearest cent, as necessary.
Answer:
The price of the TV with the sales tax included is $ 722.38.
Step-by-step explanation:
Given that a TV has a listed price of $ 671.98 before tax, and the sales tax rate is 7.5%, to find the total cost of the TV with sales tax included the following calculation must be performed:
671.98 + (671.98 x 0.075) = X
671.98 + 50.3985 = X
722.3785 = X
Therefore, the price of the TV with the sales tax included is $ 722.38.
please help i will give brainlest to the first one who answers
Answer:
The answer is x+9.
I hope you like my answer.
lf oil costs $95 per barrel and $1 =R8. How much does a barrel cost in rands?.
Answer:
R760
Step-by-step explanation:
If $1 is equivalent to R8 and the total oil costs $95 you must multiply 8x95. This leaves you with an answer of R760
I NEED HELP ASAP!! THANK YOU
which figure can be produced by a rotation and reflection of figure A ?
Answer:
It can produce the shape triangle
Find the area of the parallelogram.
3 km
4.8 km
The area of the parallelogram is ___ square kilometers.
Answer:
14.4 km²
Step-by-step explanation:
A=b
h=4.8·3
≈14.4
Three sides of a quadrilateral measure 11.4 millimeters, 7.5 millimeters, and 9 millimeters. If the perimeter of the quadrilateral is 38.6 millimeters, what is the length of the fourth side?
27.9 mm
11.3 mm
66.5 mm
10.7 mm