Answer:
cos theta=-1/2
theta=cos-¹(-1/2)=120
tan theta=tan 120=-√3
sin theta=sin120=√3/2
cos(- theta)=cos theta=cos 120=-1/2
Factor.
x^2−4x+4
plz help
Answer:
(x-2) 2
Step-by-step explanation:
Answer:
We see that the equation: x^2 - 4x + 4 is a perfect square trinomial as it is in the form of a^2 + 2ab + b^2, meaning that it is the square of a binomial. In this case, we see that we can multiply (x-2) with itself to obtain x^2 - 4x +4.
So the factored form is : (x-2)^2, or (x-2)(x-2)
We can check this by multiplying this out, and we obtain the same trinomial.
x^2-2x-2x+4
x^2-4x+4
Let me know if this helps!
Need help te slim is designing a cover for a book he wants to have a rectangler grid
Answer:
The answer is A
Step-by-step explanation:
If you do (x-3)(x-7) you get x^2 - 10x + 21
3. Find the rule for the function
table. 4 = ?
Answer:
4 = 12
Here is your answer.
Answer:
1x4=4
2x4=8
3x4=12
4x4=16
5x4=20
select the values that make the inequality -7w>-63 true then write an equivalent inequality, in terms of w
[tex] - 7 > - 63[/tex]
put these values in place of w in the inequality u will get Verified.
Step-by-step explanation:
5>4>3>2>1>0>-1>-2>-3.........>-63
here the numbers which come before - 63
are greater than it.
Hope u understood.
classify 1/3 if it is rational, irrational, integer, whole, or natural
Answer:
rational
Step-by-step explanation:
Please help me I’ll give you brainless it’s due in 20 minutes
Fraction 2 1/3 ÷ 1/4
Answer:
mixed number form: 9 1/3
decimal form: 9.3 (repeating)
Step-by-step explanation:
Answer:
9.33
Step-by-step explanation:
2 1/3 ÷ 1/4
change mixed fraction tom improper fraction - 2x3+1 = 7/3
change divide sign to multiply and reciprocate 1/4 to 4/1
multiply fractions- 7/3 x 4/1
7x4/ 3x 1
28/3
9.33
compost a song wherein the gemdas rules are mentioned.
answer please
Answer:
11
Step-by-step explanation:
i jus did 5x5
Answer:
11
Step-by-step explanation:
i will literally give you brianlist
Aisha has a smart phone data plan that costs $25 per month that includes 4 GB of
data, but will charge an extra $15 per GB over the included amount. How much
would Aisha have to pay in a month where she used 3 GB over the limit? How much
would Aisha have to pay in a month where she used went over by x GB?
Answer:
b
Step-by-step explanation:
Mary multiplied 425.32 by 981.21 and got an answer of 41,732,823.72.
Use estimation to see if her answer is reasonable.
A. No, the answer is about 400,000,000
B. No the answer is about 4,000,000
C. No, the answer is about 400,000
D. No, the answer is about 40,000
(Show your work here.)
Explain why two angles in a triangle cannot measure 80° and 100°.
because it wont make scenes when its already 180
After Mike made deposits of $32.88 and $422.73 and wrote checks for $350.00, $126.13, and $41.09, he had $249.81 in his checking account. How much was in the account before this activity?
Answer:
$311.42
Step-by-step explanation:
assuming he would have $0.00 dollars left over after the checks. add the checks together then add the deposits together then subtract.
767.03 - 455.61 = 311.42
The cone shown has a radius of 6 inches and a slant height of 10 inches. What is the total surface area of the cone?
Answer:
[tex]A=301.71\ \text{inches}^2[/tex]
Step-by-step explanation:
Given that,
The radius of a cone, r = 6 inches
The slant height of the cone, l = 10 inches
We need to find the total surface area of the cone. It is given by :
[tex]A=\pi rl+\pi r^2[/tex]
Substituting all the values,
[tex]A=\pi r(l+ r)\\\\A=\dfrac{22}{7}\times 6\times (10+ 6)\\\\A=301.71\ \text{inches}^2[/tex]
So, the total surface area of the cone is [tex]301.71\ \text{inches}^2[/tex].
Help me with this problem please.
Answer:
I believe its 7?
Step-by-step explanation:
sorry if this is wrong
Richard Hoskins was the leader of a 4-H club with 27 children. When he divided the club into groups of 5 to play a game, how many groups did he have? How many extra children were there?
Answer:
5 groups
2 extra children
Step-by-step explanation:
The computation of a number of groups and number of extra children is shown below:
Given that
There is 27 children
And, this group would be divided into group 5
So,
As we know that 25 is easily divided by 5
So there are 5 groups
And, the extra children is
= 27 - 25
= 2 chidren
Please help me with this
Answer:
in the intersection region of all the solution in the system.
A woman has 31 coins in her pocket, all of which are dimes and quarters. If the total value of the coins is $ 5.65, how many dimes and how many quarters does she have?
Answer:
14 dimes and 17 quarters
Step-by-step explanation:
d and q are the number of dimes and quarters, respectively.
"31 coins, all of which are dimes and quarters."
d+q = 31
d = 31-q
"the value of the coins is $5.65"
0.10d + 0.25q = 5.65
substitution
0.10(31-q) + 0.25q = 5.65
3.10-0.10q + 0.25q = 5.65
0.15q = 2.55
q = 17
d = 31-q = 14
14 dimes and 17 quarters
The function c(x) = 72 ⋅ (1.04)x models the cost in dollars, c, of 1 ounce of a certain chemical used in a laboratory. x represents the number of years since 2010.
How much does an ounce of the chemical cost in 2018?
$
An ounce of the chemical cost in 2018 is $98.54.
What is an exponential function?Mathematical functions with exponents include exponential functions. f(x) = bˣ, where b > 0 and b 1, is a fundamental exponential function.
Given:
The function c(x) = 72 ⋅ (1.04)ˣ models the cost in dollars, c, of 1 ounce of a certain chemical used in a laboratory.
x represents the number of years since 2010.
An ounce of the chemical cost in 2018 is,
= 72 × (1.04)⁸
= $98.54
Therefore, the cost is $98.54.
To learn more about the exponential;
https://brainly.com/question/14344314
#SPJ2
HELP PLEASE
I DO NOT UNDERSTAND
match them
1) Evaluate 3+ (a + 4)(8 – b) when a
5 and b = 6
Answer:
21
Step-by-step explanation:
3+(5+4)(8-6)
3+(9)(2)
3+18=21
Answer:
The answer is 21
Step-by-step explanation:
3+(a+4)(8-b)
3+(5+4)(8-6)
3+9x2
3+18
21
Hope this helps
Verify Euler's formula for
(a) Tetrahedron
(b) Hexagonal prism
Answer:
Euler's formula for polyhedron is:
V - E + F = 2where V- vertex, E- edge, F- faceAs per the above formula the relationship between the vertexes, edges and faces is same for any polyhedron.
Lets confirm, have a look at the picture
(a) Tetrahedron, count each element:
V = 5, E = 8, F = 5Verify
5 - 8 + 5 = 10 - 8 = 2 - correct(b) Hexagonal prism, count each element:
V = 12, E = 18, F = 8Verify
12 - 18 + 8 = 20 - 18 = 2 - correct1.5,3,4.5,6,...arithmetic sequence or geometric sequence
Answer:
Step-by-step explanation:
1.5 , 3 , 4.5 , 6 ............
This is an arithmetic sequence. Each term is obtained by adding 1.5 to the previous term.
First term = 1.5
Common difference = second term - first term
= 3 - 1.5 = 1.5
Check:
Second term = 1.5 + 15 = 3
Third term = 3 + 1.5 = 4.5
Fourth term = 4.5 + 1.5 = 6
What is the value of x for 2x+14=y
Answer:
x = (y - 14) / 2
Step-by-step explanation:
2x + 14 = y
2x = y - 14
x = (y-14)/2
(b) A private club grew by 7 members each week for 42 weeks. What was the total change in the
club's size?
members please help
Answer:
294
Step-by-step explanation:
42×7=294
The total change was the capacity.
Find the percent of the number 35%of750
Answer:
262.5
Step-by-step explanation:
35 percent * 750 =
(35:100)* 750 =
(35* 750):100 =
26250:100 = 262.5
Answer:
262.5
Step-by-step explanation:
BC =using the Distance Formula
A. 5
B. 7
C. 11
Don’t choose randomly or write “just doing this for points” cause its annoying and I’m having an exam.
Answer: Option A: 5
Step-by-step explanation:
If yo have the pairs (a, b) and (c, d)
The distance between these two points is:
distance = √( (a - c)^2 + (b - d)^2)
Here we want to find the distance between points B and C.
We can see that the coordinates of each one are:
point B: (-5, 5)
Point C: (-1, 2)
Then the distance between these points is:
AB = √( (-5 -(-1))^2 + (5 -2)^2) = 5
AB = √( 4^2 + 3^2)
Then the correct option is A
HELP PLEASE! WILL GIVE BRAINLIEST!
jack simplified the expression below!
Determine whether not jack is correct!
if he isn't explain the mistakes and provide the correct work!
{1}{3} (2x+9)+{2}{3} (4x-3) {2}{3} x+27{8}{3}x+2{10}{3}x+29
PLS HELP I AM BEHIND ON MY MATH AND FAILING!! I REALLY NEED HELP PLEASE I WILL GIVE BRAINLIEST!
Answer:
2116x2 + 3355 + 146
Step-by-step explanation:
Hope this helped <3
Simplify 3c^2 + 5c^2 - c^2
Answer:
7c^2
Step-by-step explanation:
I hope this helps have a great day
grrrr i have no idea what this unit is talking about please help
Answer:
SSS Triangle Congruence.