Can the measurement from △DEF be determined using only the Law of Cosines? State whether each measurement can be determined using only the Law of Cosines by answering “yes” or “no”.
m∠D =
m∠E =
DE =
Answers
9514 1404 393
Answer:
∠D - no∠E - noDE - yesStep-by-step explanation:
With a single application of the Law of Cosines, you can only find one of an unknown side or an unknown angle. The other three elements in the 4-variable equation must be specified.
However, a single application of the LoC can be used to find DE. Then, knowing the three sides, either of the unknown angles can be found from an additional application of the LoC.
So, the answer is "it depends." It is yes to all if finding DE first is allowed. It is "no" to the angles if they must be found without finding DE first.
Related Questions
The two circle pictured above represent two congruent circles.
True
or
False
Answers
Answer:
False
Step-by-step explanation:
If two circle are congruent, the two circles will have same radius.
As inner circle radius is smaller than outer circle radius.
These two circle have same center. They are called concentric circles
Convert the decimal to a fraction.
0.483
Answers
Answer:
483/1000
Step-by-step explanation:
i think i could be wrong
Answer:
The answer is =483/1000
cube root of 0.064
a) 4
b) 0.04
c) 0.4
d) 0.004
Answers
Answer:
Option C. 0.4
Step-by-step explanation:
Given data
0.064
We are required to find the cube root of the above number
The cube root is also expressed mathematically as
= ∛0.064
= 0.4
Hence, the answer is option C 0.4
Select an expression equivalent to the expression 96 + 60. A. 12(8 + 5) B. 12 + 8 × 5 C. 12 × 8 + 5 D. (12 + 8)(12 + 5)
Answers
Answer:
A
Step-by-step explanation:
Answer:
It's A.
Step-by-step explanation:
96 + 60 = 12(8 + 5)
= 12*8 + 12*5
= 96 + 60
neeed helppp asap hellppp
Answers
Answer:
independent = study time
dependent = grade
Step-by-step explanation:
grade is dependent upon amount of time you study (which you control independently)
Answer:
I think the independent is the time you study while the dependent variable is your grade.
Step-by-step explanation:
Since the grade relies on how much studying you do, it is dependent.
can someone answer pls :(
i need help it’s already missing i’ll give brainlist and points
Answers
Answer:
download mathaway and put the equations in it and press graph
Answer:
Step-by-step explanation:
To graph the lines you only need to connect two points and extend the line in either direction as far as you wish.
The first line is y=x-1
We get two points by subbing in any two values of x
y(0)=0-1=-1 and y(1)=1-1=0
So you just connect (0,-1) and (1,0)
The second line is y=-x/3+3 and we can do the same thing
y(0)=-0/3+3=3 and y(3)=-3/3+3=2
So you connect (0,3) and (3,2)
PLEASE HELP ME ON THIS PLZZZZZ!!!!!
Answers
Answer:
-2,-9
Step-by-step explanation:
im not 100 perent sure ifthis is right or not
Answer:(-2,-9)
Step-by-step explanation:
When will there be menstruation?
if your answer is correct im gonna brainiest you
Answers
The menstrual cycle, which is counted from the first day of one period to the first day of the next, isn't the same for every woman. Menstrual flow might occur every 21 to 35 days and last two to seven days. For the first few years after menstruation begins, long cycles are common.
:) hope it helps :)
Using the order of operations, what should be done first when evaluating this expression? -1/2 ÷ 2 (9 + 3) - 4 - 3/4 (8)
divide -1/2 ÷2
add 9 + 3
multiply -3/4 (8)
subtract 3 - 4
Answers
Answer:
multiply -3/4 (8)
Step-by-step explanation:
First, we need to get rid of the parentheses by adding 9+3.
Correct answer is: add 9+3
Find the measures of the numbered angles in rhombus ABCD.
Answers
Answer:
∠1=66⁰
∠2=24⁰
∠3=24⁰
∠4=90⁰
Step-by-step explanation:
∠2=∠ADB=24 (ΔADB is isosceles, so ∠ADB=∠ABD)
∠4 =90 (right angle)
∠3=24 (BD bisects ∠ABC, so ∠2=∠3)
∠1+∠2+90=180 (angles in triangle add to 180)
∠1=66
Easy questions! I will give brainliest! Tysm!
What is the area of a square with side lengths of 3/5 units?
What is the side length of a square with area 1/16 square units?
What is the side length of a square with area 1/16 square units?
What is the side length of a square with area 1/16 square units?
Answers
Answer:
Step-by-step explanation:
area square = side²
(3/5)²
√(1/16)
√(1/16)
√(1/16)
In an elementary school in Boston, 6 of the 24 students are of Irish heritage, which reflects the percent of people in Boston who are of Irish heritage. What percent of the class is of Irish heritage?
Answers
Leo bakes 4 cobblers. Each cobblers needs c cups of flour. Write an expression for the number of cups of flour used
Answers
Answer:
4x
Step-by-step explanation:
4x is going to be the answer because he bakes 4 cobblers and they need c cups of flour so c is going to be the variable x. :)
help help help! 25 points
Answers
Step-by-step explanation:
-6x^2 -8x +2x-8 = -6x^2 -6x -8
it's a quadratic.
If – 2/3X – 1 = 4, then x =
Answers
Answer:
2/5
Step-by-step explanation:
The value of x will be x = -15/2
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
We are given that the equation – 2/3X – 1 = 4
Here, we need to solve for x,
– 2/3X – 1 = 4
Now combine the like terms;
– 2/3X = 4 + 1
-2/3x = 5
x = -15/2
Therefore, the solution will be as;
x = -15/2
The value of x will be; x = -15/2
Learn more about equations here;
brainly.com/question/25180086
#SPJ2
The bottom layer of a rectangular prism contains 15 unit cubes The prism is made up of 5 equal-size layers what is the volume of the prism in cubic units
Answers
Answer:
75 cubic units
Step-by-step explanation:
Bottom layer of a rectangular prism is made up of 15 unit cubes.
Therefore, area of the 15 unit cubes = 15(area of the base of one unit cube)
= 15(1)²
= 15 unit²
Number of layers of unit cubes in the rectangular prism = 5
So the height of the prism = 5 units
Volume of the prism = (Area of the base) × Height
= 15 × 5
= 75 cubic unit
need help don't know what I'm doing !!!!!
Answers
Answer:
50
Step-by-step explanation:
m a t h w a y is helpful too!
Solve: please, THANKS
Answers
Answer:
20/21
Step-by-step explanation:
have a nice day or evening
The relationship between the number of calories Aaron burns while working out can be represented by y = 3x, where x is the number of minutes and y is the number of calories burned. Which of the following could be the graph of this situation?
Answers
Answer:
Step-by-step explanation:
The relation is proportional ⇒ Graph of y = 3x goes through origin
So the answer is (B)
Evaluate 6t−20−32u when t=6 and u=1/4
Answers
36-20-8
16-8
8
4. What is / are the coefficients in this expressions? 3a+7-8n *
Answers
Answer:
Step-by-step explanation:
Term Coefficient
3a 3
-8n -8
Paco is trying to explain to his friend that 7 divided by 2 is 7/2 draw a model or number line showing 7 divided by 2 = 7/2
Answers
Answer:
it is true
Step-by-step explanation:
Help me please!!!!!!!! free brainliest.
Answers
Answer:
isnt it number 'A' as it is equivalent to the other.
Answer:
A
Step-by-step explanation:
Mr. Rojas spent d dollars to go on vacation. He bought a plane ticket for $250 and stayed in a hotel for 5 nights. If the cost of the hotel room was the same each night, what expression can be used to find how much Mr. Rojas paid each night for the hotel?
HELP ME PLEASEEEE IM SO CONFUSEDD :(
Answers
Answer:
d-250x5=i dont know
Step-by-step explanation:
find the 9th term of the geometric sequence 2, -10 50 -250
Answers
Answer:
781250
Step-by-step explanation:
We first need to find the common ratio
-10 /2 = -5
50 / -10 = -5
The common ratio is -5
an = a (r) ^ (n-1)
a9 = 2 ( -5) ^(9-1)
= 2 (-5)^8
=781250
If the measure of arc RT = 80 degrees and the measure of arc US = 40 degrees, what is the m<2?
Answers
360-120=240
240/2=120
So answer is 120
Aaron saw it was 86° Fahrenheit, F, in Australia in January. Aaron used the formula C=5/9(F−32) to find the temperature in degrees Celsius, C. What temperature, in degrees Celsius, did Aaron find?
Answers
Answer:
[tex]30^{\circ}\text{C}[/tex]
Step-by-step explanation:
The temperature that Aaron saw was [tex]86^{\circ}\text{F}[/tex]
The formula to convert Fahrenheit to Celsius is
[tex]C=\dfrac{5]{9}(F-32)[/tex]
[tex]\Rightarrow C=\dfrac{5}{9}\times (86-32)[/tex]
[tex]\Rightarrow C=30^{\circ}\text{C}[/tex]
The given temperature in Celsius that Aaron found would be [tex]30^{\circ}\text{C}[/tex].
Need help on this assignment
Answers
Answer:
(-1)^2+5= 1+5=6
(0)^2+5= 0+5= 5
(1)^2+5= 1+5= 6
6+5+6= 17
x-1 + x0 + x1 = (-1)^2 + 5 + (0)^2 + 5 + (1)^2 + 5 = 6 + 5 + 6 = 17
The first time Jane went to the fitness center she exercised for 20mins. She adds 10 mins to her exercise program every other day after that. how many days will it take Jane to build her exercise program every other day after that. how may days will it take Jane to build her exercise program up to an hour in length?
Answers
Answer:
9 days
Step-by-step explanation:
Day 1 20 min
Day 2 20 min
Day 3 30 min
Day 4 30min
Day 5 40 min
Day 6 40 min
Day 7 50 min
Day 8 50 min
Day 9 60 min
Question 8 - Find the mean
Answers
Answer:
3.6
Step-by-step explanation:
WE can add 0+2+2+2+2+3+3+3+4+4+4+4+4+5+5+5+5+5+5+5 to get 72. WE then divide by 20 and get 3.6