Answers
Answer:
33.9
Step-by-step explanation:
cos rule:
a²=b²+c²-2xaxbxcosA
rearrange:
cosA=(b²+c²-a²)÷(2xaxb)
solve:
cosx=(8²+22²-16²)÷(2x8x22)
cosx=(64+484-256)÷352
cosx=292÷352
cosx=0.830
cos^-1(shift cos)=33.9
Related Questions
answeeeeeeeeeeerrr thank you
Answers
Answer:
x = 52
m<ACD = 159
m<ACB = 21
Step-by-step explanation:
1) Set up an equation.
2x + 55 = 3x + 3 (the two interior angles on the opposite of the triangle and the exterior angle are equal to the exterior angle)
2) Solve for x.
2x + 55 = 3x + 3
-x + 55 = 3
-x = -52
x = 52
3) Substitute 'x' into each angle required to find m<ACD and m<ACB.
m<ACD = 3(52) + 3
= 156 + 3
= 159
CHECK:
2(52) + 55 = 159
104 + 55 = 159
159 = 159
m<ACB + m<ACD = 180
m<ACB + 159 = 180
m<ACB = 21
Let f(x) = x2 + 8x - 2, find lim f(x).
X 2
Answers
Hope that helps!
Simplify the expression by arranging the steps in sequence, based on the order of operations.
Answers
Answer:
[tex]\displaystyle 6x - 5[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightDistributive Property
Algebra I
Terms/Coefficients/DegreesStep-by-step explanation:
Step 1: Define
[tex]\displaystyle \frac{1}{6}(30x + 24) - \frac{1}{7}(63 - 7x)[/tex]
Step 2: Simplify
Distribute: [tex]\displaystyle \frac{1}{6}(30x) + \frac{1}{6}(24) - \frac{1}{7}(63) - \frac{1}{7}(-7x)[/tex]Multiply: [tex]\displaystyle 5x + 4 - 9 + x[/tex]Rearrange: [tex]\displaystyle 5x + x + 4 - 9[/tex]Combine like terms: [tex]\displaystyle 6x - 5[/tex]1. Angle 3 and Angle 6 are examples of which type of angle pair?
Answers
Just answr. I’ll give lot of point
Answers
Answer:
there is no picture but i can try to help you
Step-by-step explanation:
Answer:
REALLY TY *BOWS*
Step-by-step explanation:
d + 5.5 = 10. Solve for d.
Answers
Answer:
4.5
Step-by-step explanation:
d=10-5.5
d= 4.5
we just need to minus 10 with 5.5 so that we can find d
Solve the system of equations:
x+y=5
-4x-2y=-8
Which point on the graph below is the solution to the system of linear equations?
A. W
B. X
C. Z
D. Y
Answers
Answer:
the correct answer would be Y! i took it!! make me most brainlessly please!!!
Step-by-step explanation:
If your gonna answer thanks
A.
B.
C.
D.
Can someone please get me the answer fast
Answers
Answer:
i think its 3.5 because of how it is going
Javier asks his mother how old a tree in their yard is. His mother says, “The sum of 10 and two-thirds of that tree’s age, in years, is equal to 50.”
Javier writes the equation (10 + two-thirds) a = 50, where a is the tree’s age in years. His equation is not correct. What error did he make?
Answers
Answer:
Javier's equation is not correct because the variable "a" should be multiplied by only and then added to
Step-by-step explanation:
Let
a------>is the tree’s age in years
we have that
-------> Javier's equation
we know that
The equation that represent the situation is equal to
Solve for a
Multiply by both sides
Javier's equation is not correct because the variable "a" should be multiplied by only and then added to
please answer asap correctly dont troll!!!
Answers
Answer:
10
Step-by-step explanation:
Bro, again the same question))
a>17-8
a>9
What is the sum of 2x+1 and its opposite?
Answers
Answer:
Zero. The sum of anything and it's opposite is zero, that's how an opposite is defined . In this case, the opposite of 2x+1 is -(2x+1)=-2x-1 by the distributive property . Adding like terms, 2x+-2x+1+-1=0+0=0.
Work backwards using the Distributive Property.
8(2) + 6(2) =
O 6(8+2)
O 8(2 +6)
O (8+6)2
O 2(6+2)
Answers
Hope this helps
Have a great day/night
48 is 16 2/3% of what number?
Answers
Answer:
288
Step-by-step explanation:
I hope this helps <3
Evaluate functions from their graph f(-5)=
Answers
Answer:
7
Step-by-step explanation:
(-5,7) lies in the graph!
A rectangle has an area of 6 1/2 square inches. It's length is 2 1/4 inches. What is the width
Answers
6 1/2 / 2 1/4
13/2 x 4/9= 52/18
2 16/18
2 8/9
PLS answer asap
Enter the missing numbers in the boxes to complete the table of equivalent ratios.
Answers
28 divided by x+4=11
Answers
Answer:
x = -16/11
Step-by-step explanation:
28/(x+4)=11
28=11(x+4)
28=11x+44
11x=-16
x=-16/11
Answer: x=4
Step-by-step explanation:
28 divided by x+4=11
28 divided by x=7
28/7=4
You are flying your dragon kite. It's connected to 40yd of string. The kite is directly above the edge of a pond. The edge of the pond is 36yd from where the kite is tied to the ground. How high is the kite above the edge of the pond?
Answers
We have a right triangle with hypotenuse 38 and leg 34.
We want to find the other leg.
We use the Pythagorean Theorem:
The museum of natural history has an auditorium that can seat 200 people. A class of 45 students is seated in the auditorium for a lecture. What decimal represents the portion of the seats in the auditorium that are empty? Please help FAST!
Answers
Answer:
.225
Step-by-step explanation:
45/200
-3p>-48 Solve the inequality
Answers
9514 1404 393
Answer:
p < 16
Step-by-step explanation:
Dividing the inequality by a negative number will reverse the comparison.
-3p > -48
(-3p)/(-3) < (-48)/(-3) . . . . divide both sides by the coefficient of p
p < 16
_____
Alternate solution
Add 3p+48 to both sides.
-3p +(3p +48) > -48 +(3p +48)
48 > 3p
Divide both sides by 3; no reversal is necessary.
16 > p . . . . . same answer as above, without the comparison reversal
Find the area, in square units, of rectangle ABCS plotted below.
Answers
Answer:
The answer is D-80
Step-by-step explanation:
Got it correct on the quiz
Find the value of x
Answers
Answer:
x=20°
Step-by-step explanation:
The triangle is equilateral. (All sides are the same).
Each angle in an equilateral triangle is 60.
3x=60
x=20°
When using a number line, in which direction should you move when subtracting a negative value?
Answers
Answer:
LEFT
Step-by-step explanation:
Answer:
Move to the right when you're subtracting a negative number.
While in the water, Meg saw some treasures located
between the surface of the water and 1 foot below.
Which fractions come between those two numbers?
Check all that apply.
1
0 1
Answers
Answer:
A and D
Step-by-step explanation:
The fractions between these heights are -
-1/10 , -2/10, -3/10, - 4/10, - 5/10, - 6/10, -7 /10, - 8/10, - 9/10
What is a mathematical function, equation and expression?Function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function
Expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators
Equation : A mathematical equation is used to equate two expressions.
Given is that while in the water, Meg saw some treasures located between the surface of the water and 1 foot below.
Assume the surface to be at 0 ft. Then, 1 feet below, can be written as -
x = - 1
So, the fractions between these heights are -
-1/10 , -2/10, -3/10, - 4/10, - 5/10, - 6/10, -7 /10, - 8/10, - 9/10
Therefore, the fractions between these heights are -
-1/10 , -2/10, -3/10, - 4/10, - 5/10, - 6/10, -7 /10, - 8/10, - 9/10
To solve more questions on functions, expressions and polynomials, visit the link below -
brainly.com/question/17421223
#SPJ5
When you add 98 to a number you usually...
Answers
Aneser:
+98
Step-by-step explanation:
when you are adding something to something to something else u put a plus sign to add it hope this helps
Paul had some candy to give to his three children. He first took four pieces for himself and then evenly divided the rest among his children. Each child received two pieces. With how many pieces did he
start?
Answers
Answer:
10 pieces
Step-by-step explanation:
Work backwards
Multiply 3 by 2 to get 6
Add 4 to 6 to get 10
Check:
10 - 4 = 6
6/3 = 2
what is 0.47 of £1 as pound sign
Answers
Answer:
In the Unicode standard, the symbol £ is called POUND SIGN, and the symbol ₤ is the LIRA SIGN.
QUICK EZ MATH
A bookcase is 4 ft tall. A model of the bookcase is 6 ft tall. What is the ratio of the height of the model bookcase to the height of the real bookcase?
Answers
Answer:
4:6
Step-by-step explanation:
The ratio of the height of the model bookcase to the height of the real bookcase will be 3: 2.
What are ratio and proportion?A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.
A bookcase is 4 ft tall. A model of the bookcase is 6 ft tall.
The ratio of the height of the model bookcase to the height of the real bookcase is given by the division of the numbers 4 and 6. Then we have
Ratio = 6 / 4
Simplify the ratio, then we have
Ratio = 6 / 4
Ratio = 3 / 2
Ratio = 3: 2
The ratio of the height of the model bookcase to the height of the real bookcase will be 3: 2.
More about the ratio and the proportion link is given below.
https://brainly.com/question/14335762
#SPJ5
3x-2y=1x+4y=33 elimination process
Answers
Answer:
x = 5 ; y = 7
Step-by-step explanation:
3x - 2y = 1 --------------------(I)
x + 4y = 33 ------------(II)
Multiply equation (II) by (-3) and then add. So, x will be eliminated and we can find the value of y
(I) 3x - 2y = 1
(II)*(-3) -3x -12y = -99 {Now add}
- 14y = -98
y = -98/14
y = 7
Plugin y = 7 in equation (I)
3x - 2*7 = 1
3x - 14 = 1
3x = 1 + 14
3x = 15
x = 15/3
x = 5
Figure shows 2 lines
Answers
Answer:
provide pictures next time