Answers
Answer:
34.78
Step-by-step explanation:
using cosine rule
AB^2 = CB^2 + AC^2 -2(CB × AC × COS C)
18^2 = 17^2 + 27^2 -2(27×17×COS C)
324= 289+729- 918COSC
324-289-789= -918COSC
-754= -918COSC
COS C = 754/918
COS C = 0.82135076253
C= arccos(0.82135076253)
C= 34.78(2 dp)
Related Questions
Pls help I need help with math
Answers
I hope it helped you!!
Oof
Answer:
20x
Step-by-step explanation:
First of all, we need to always do the x first. And then subtract it I guess.
25x + (5x – 10)
30x-10
20x
The two circle graphs show the popularity of five subjects in a high school in 2000 and again in 2008. Students were asked to name their favorite subject each year. The total student population was the same in 2008 as it was in 2000. What do the graphs show? A) More students chose chemistry in 2008. B) Math was chosen more often in 2008 than in 2000. C) Twice as many students picked history in 2008 as did in 2000. D) English was the second most popular subject in both 2000 and 2008.
Answers
Answer:
Gross Domestic Product (GDP) includes all final goods and services produced within a country, in a specific period and doesn't necessarily include all the transactions that are going in the economy.
For example: Used domestic car buying or selling won't be counted for the GDP of current year, as it was manufactured and sold in 2000.\]Step-by-step explanation:
Let's check one by one
#1
Chemistry remains 13%False
#2
Yes 5%-->7% increaseTrue
#3
Yes 15(2)=30%True
#4
In 2000 but not in 2008False
Pierre has 12 packages to send he sent two packages on Monday and to two more packages on Tuesday what fraction of the packages has Pierre sent so far
Answers
Answer:
1/3
Step By Step Explanation:
He has sent 4/12 packages which is reduced to 2/6 which is reduced to 1/3.
Please help it's urgent
Answers
Answer:
no solutions exist
Step-by-step explanation:
You can rewrite the denominator as:
-2(2x-6) so the equation becomes:
[tex]-\frac12 \cdot \frac{2x-6}{2x-6} > 0[/tex]
from which you can see that not only should x ≠ 3, but for all values of x≠3 the equation is false.
If you were to solve this inequality,
do you need to flip the Inequality symbol?
Answers
Answer: no
I would not flip the inequality symbol
Answer:
I think fractions are smaller than whole numbers
So I think No (viewpoint)
4x^2y multiplied by (-6xy^2)
Answers
Answer:
4x²y* (-6xy²)= -24x³y³
1 3/8, 1 3/4, 2 1/8,__,2 7/8 Find the missing Fraction
ASAP PLEASEEE
Answers
Answer:
2 1/2
Step-by-step explanation:
An arithmetic sequence is found when you subtract consecutive terms. The difference is always 3/8 between the terms.
The function c(x) = 400x – 0.2x2 represents the total costs for a company to produce a product, where c is the total cost in dollars and x is the number of units sold. which statement is true? one thousand units have the minimum cost of $200,000. one thousand units have the maximum cost of $200,000. two thousand units have the minimum cost of $800,000. two thousand units have the maximum cost of $800,000.
Answers
At x = 1000 we get the c(1000) = 2000,000. Second statement 'one thousand units have the maximum cost of $200,000' is true.
It is given that the function [tex]\rm c(x)=400x-0.2x^2[/tex] represents the total costs for a company to produce a product, where c is the total cost in dollars and x is the number of units sold.
It is required to find which statement is true, mentioned in the question.
What are the maxima and minima of a function?Maxima and minima of a function are the extrema within the range, in other words, the maximum value of a function at a certain point is called maxima and the minimum value of a function at a certain point is called minima.
We have a function:
[tex]\rm c(x)=400x-0.2x^2[/tex]
To find the maxima and minima of any function we differentiate the function with respect to [tex]\rm x[/tex] and equate to zero.
[tex]\rm \frac{d \ c(x)}{dx} =\frac{d}{dx} (400x-0.2x^2)[/tex]
[tex]\rm \frac{d \ c(x)}{dx} =\frac{d}{dx} (400x)-\frac{d}{dx} (0.2x^2)\\\rm \frac{d \ c(x)}{dx} =400-(0.2\times2x)\\\rm \frac{d \ c(x)}{dx} =400-0.4x[/tex]
For maxima and minima [tex]\rm \frac{d \ c(x)}{dx} =0[/tex]
[tex]\rm 400-0.4x=0\\\rm x=\frac{400}{0.4} \\\rm x=1000[/tex]
If we find the seconnd differentiate, we get
c''(x) = -0.4 < 0
It means at x = 1000 we will get the maximum value of a function.
[tex]\\\\\rm c(1000) = 400(1000) - 0.2(1000)^2\\\rm c(1000)= 200,000[/tex]
Thus, at x = 1000 we get the c(1000) = 2000,000. Second statement is true.
Know more about the maxima and minima here:
https://brainly.com/question/6422517
Answer:
B
Step-by-step explanation:
To determine the maxima and minima of the polynomial, differentiate the given based on x and equate to 0. C(x) = 400x - 0.2x² dC(x) / dt = 400 - 0.4 x = 0 The value of x is 1000. This is the value of the maxima. As the value of C(x) continously becomes lesser as the value of x is set higher, the minima is not identified. Substitute x to the original equation, C(x) = (400)(1000) - 0.2(1000²) = $ 200,000Thus, the answer is letter B.
12-inch-tall boxes are being stacked next to 8-inch-tall boxes.
What is the shortest height at which these two stacks will be the same height?
Answers
Answer:
First, we have to find the LCM of 12 and 8 which would be 24. Since we have to multiply 8 by 3, and 12 by 2, then the shortest height would be two 12-inch boxes, and three 8-inch boxes.
Step-by-step explanation:
PLEASE MARK ME AS BRAINLIEST I REALLY WANT TO LEVEL UP
find 5 consecutive odd integers if the sum of the first three integers is 7 more than
PPPPPPPPPPPPLLLLLLLSSSSSSS HELPPPP
Answers
Answer:
15,17,19,21,23
Step-by-step explanation:
Enjoy You All!
what is 34.982 + 45.8 + 3.4298=
Answers
Answer:
84.2118
Step-by-step explanation:
34.982 + 45.8 + 3.4298=84.2118
i just did it
Factor completely 3x − 15. (1 point) 3(x − 5) 3(x + 5) 3x(−15) Prime
Answers
Answer:
[tex]3(x - 5)[/tex]
Step-by-step explanation:
[tex]3(x - 5) =( 3)(x) + (3)( - 5) = 3x - 15 \\ \\ 3(x + 5) = (3)(x) + (3)(5) = 3x + 15 \\ \\ 3x( - 15) = (3x)( - 15) = - 45x[/tex]
someone pls help me with this
Answers
Answer:
1 =125
2=55
3=95
...........
What’s -7 - - 1
And why?
Answers
Answer:
-8
Step-by-step explanation:
when there are two negetive numbers you add them not subtract
sobre un estante se pueden colocar 30 libros de ciencias y 6 lubros de letras o 18 libros de letras y 10 libros de ciencias ¿cuantos libros de letras unicamente se pueden colocar?
Answers
Usando un sistema de ecuaciones vamos a ver que entran 24 libros de letras en el estante.
Cuantos libros de letras se pueden colocar?
Vamos a usar las variables:
x = peso de un libro de ciencias.y = peso de un libro de letras.Por el texto, podemos saber que el peso maximo que tolera el estante esta dado por el sistema de ecuaciones.
30*x + 6*y = P
10*x + 18*y = P
Podemos igualar esas dos ecuaciones para obtener:
30x + 6y = 10x + 18y
30x - 10x = 18y - 6y
20x = 12y
x = (12/20)*y
Ahora, podemos reemplazar esto en una de las dos ecuaciones, por ejemplo la primera:
30x + 6y = P
30*(12/20)y + 6y = P
(3/2)*12*y + 6y = P
18y + 6y = P
24y = P
Así concluimos que entran 24 libros de letras en el estante.
Sí quieres aprender más sobre sistemas de ecuaciones, puedes leer:
https://brainly.com/question/20868687
Multiply (9 - 4i)(2 + 5i)
Answers
Answer:
38+37i
Step-by-step explanation:
Which of the following is the function f(x) if F"(x) = { +3?
A. f(x) = 8(x-3)
B. f(x) = 8(x + 3)
C. f(x) = 8x+3
D. f(x) = 8x-3
Answers
Answer:
C C C C C.....is a function
Evaluate 9 - 8/s
when S = 4
Answers
Answer:
9-2 is7
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
1.) Let's substitute 4 for [tex]S[/tex].
[tex]9 - \frac{8}{S}[/tex]
[tex]= 9 - \frac{8}{4}[/tex]
[tex]= 9 - 2[/tex]
[tex]= 7[/tex]
Find the slope of the line passing through the two points (-2,1) (6,-1)
Answers
Answer:
-1/4
Step-by-step explanation:
We use the formula:
[tex] \frac{y₂ -y₁}{x₂ -x₁} [/tex]
plugging in we have
[tex]\frac{ (- 1)-(1)}{(6) -( - 2)} = \frac{ - 2}{8} = - \frac{1}{4} [/tex]
Therefore our slope is -1/4
Give an explanation for them
1. What is scientific notation?
2. What does it mean to have no solution or many solutions to a problem when solving for x?
3. What is another way of writing: 2 x 2 x 2 x 2 (hint: use exponential form)
Answers
Answer:Scientific notation is a way of expressing real numbers that are too large or too small to be conveniently written in decimal form
Step-by-step explanation:
what set does 13.444 belong to
Answers
Answer:
13.4445 I think.
Step-by-step explanation:
An angle measures 64.8° less than the measure of its complementary angle. What is the measure of each angle?
Answers
Answer:
77.4 degrees and 12.6 degrees
Step-by-step explanation:
Let the angles be x and x - 64.8.
Therefore, on the basis of knowledge that complementary angles add up to 90 degrees :
x + x - 64.8 = 90
2x = 154.8
x = 77.4 degrees
x - 64.8 = 77.4 - 64.8 = 12.6 degrees
Please Help! Malik agreed to practice basketball drills with a new player, Tyler, during practice. Malik's best friend, Samuel, doesn't like Tyler and asked Malik to practice with him instead.
What can Malik do to show integrity?
Answers
What is the least common multiple of 3, 8, and 11?
Answers
Answer:
264
Step-by-step explanation:
Answer: The Least Common Multiple (LCM) for 3, 8 and 11, notation LCM (3,8,11), is 264 Solution by using the division method This method consists of grouping by separating the numbers that will be decomposed on the right side by commas while on the left side we put the prime numbers that divide any of the numbers on the right side.
Can someone help me please !
Answers
Answer:
(3,-5)
Step-by-step explanation:
4+1=5 put it on negative side makes it -5.
12 feet =. . Yards
Help
Answers
Answer:
4
Step-by-step explanation:
How many yards in 12 feet?
1 yd
Multiply 12 feet by the conversion factor --------------- obtaining 4 yd
3 ft
A bag contains four colors of marbles. The probability of randomly drawing out a yellow marble is 73%.
What is the probability of not drawing a yellow marble?
Enter the answer in the box.
Probability of not drawing a yellow marble =
Answers
Answer:
2.92%
Step-by-step explanation:
your answer must be simplified x/25 > 5
Answers
Answer:
[tex]x>5[/tex]
Step-by-step explanation:
[tex]\frac{x}{25}>5\\\\25(\frac{x}{25})>25(5)\\\\\frac{x}{1}>125\\\\x>125\\\\\underline{x>5}\Longleftarrow\:Answer[/tex]
The original price of a sound system is $1250. For one day only, the store is offering a frequent shopper discount of 35% on all merchandise. Which expressions can be used to find the discounted price of the sound system? Check all that apply.
0.35($1250)
$1250 + 0.35($1250)
0.65($1250)
$1250 – 0.35($1250)
Answers
Answer:
C.)0.65($1250)
D.)$1250 – 0.35($1250)
Step-by-step explanation:
O.P (Original Price) $1250
Dc (Discount) 35% - *ALL MERCHANDISE*
Question:
Which expressions can be used to find the discounted price of the sound system?
Second Answer:
C & D are the two options that fit the
O.P (Original Price)
&
Dc (Discount)
Answer:
C and D
Step-by-step explanation:
Simplify 3^(eight) divided by 3^(two)
Answers
Answer:
1/4
Step-by-step explanation:
Hope this Helps!