Answer:
11.6
Step-by-step explanation:
The length of f of the triangle is f = 11.7 cm
What is Law of Cosines?The Law of Cosines is a mathematical formula used to find an unknown side or angle of a triangle, given the lengths of the other two sides and the angle opposite the unknown side. It is also known as the Cosine Rule.
The Law of Cosines states that for any triangle with sides a, b, and c and angle C opposite side c, the following equation is true:
c² = a² + b² - 2ab cos(C)
where cos(C) is the cosine of angle C. This formula can be rearranged to solve for any of the variables, depending on which values are known.
Given data ,
Let the triangle be represented as ΔEFG
And , the measures of the sides of the triangle are
g = 4.3 cm
e = 9.1 cm
And , measure of angle ∠F = 116°
where c² = a² + b² - 2ab cos(C)
On simplifying , we get
a² = c² - b² + 2abcos ( C )
78.26 ( cos 116° ) - 4.3² - 9.1² = f²
f² = 135.7344
Taking square roots on both sides , we get
f = 11.7 cm
Hence , the length is f = 11.7 cm
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There are
68
people at a show.
The ratio girls to boys is
7:10
Find how many girls and boys there are.
Answer:
28 girls and 40 boys
Step-by-step explanation:
68/17=4
4*7=28
4*1=40
Write an equation that has a slope of ½ and a y-intercept of -6.
Answer: y=1/2x-6
Step-by-step explanation:
Answer:
y=1/2x + -6
Step-by-step explanation:
its just the y = mx + b forulma but you just plug in the numbers
Hope this helps :)
3. In a survey on juice preference, 68 students prefer orange
juice and 32 prefer apple juice.
Jui
Use difference to compare.
Answer:
36
Step-by-step explanation:
68-32= 36
Answer:
i have 36
Step-by-step explanation:
all i did was subtract 32 from 68
Brenda wants to attach a string of beads along the circular bottom edge of the lampshade shown
below. The diameter of the bottom of the lampshade is 16 centimeters.
About how many centimeters long should Brenda make the string of beads?
Answer:
its 50
Step-by-step explanation:
HELP!!! What mistake did I make? And what would u suggest to help me???
Answer:
All the dots need to be on the line, and maybe dont add so many dots
Step-by-step explanation:
Hal earns $5 a week doing chores for his parents. He also earns $10 a week for each dog, d, he walks
Write an equation to find m, the total amount of money Hal earns in one week. Which variable in the equation is the dependent variable and which variable is the independent variable? Tell how you know
Answer:
Step-by-step ex
5. Gretta is 1 1/2
meters tall. Which of the following is equivalent to 1 1/2
meters?
Answer:
hey
Step-by-step explanation:
hey hey
I don't know how to do this.
Need Help Due Tomorrow
MUST SHOW WORK!
don’t bother answering if not going to show work
Step-by-step explanation:
If D8=127
Therefore D4 =D8 (because corrosponding angles (forming 'F')
Therefore, the D4=D1(because vertically opposite angle)
There fore D4+D1
i. e 127+127 =254
The option (A) is the correct one
PLZZ GIVE ME BRAINLIEST TAG
THANK YOU........
Is line BC parallel to line DE?
I will give brainliest if correct !!
Answer:
58
Step-by-step explanation:
Find the missing side length.
12
15
X
what is y=x+4 as an ordred pair
Answer:
(0,4), (1,5), (2,6)
Hope this helps
Find the value x
please help
Answer:
Step-by-step explanation:
5. How many solution/s do linear inequality in two variable have?
A.O
B. 1
C. 2
D. Infinite
6. Which of the following in NOT a solution of the inequality x + y 2 5,?
A. (4, 5)
B. (3, 2)
C. (1,3)
D. (5,0)
7. An inequality using a > or s has a
A.horizontal
B.broken
line.
C. solid
D. vertical
8. If y > 5 + x, where can we find the solution set?
A.above the line
C. in the line
B.below the line
D. no solution set
9. Which of the following inequalities is represented by the given
graph?
A. 2x + y > 4
C. 2x + y 4
B. 2x + y < 4
D. 2x + y 24
10. Given the graph of y = 2x - 5 below, which of the following
ordered pair is NOT part of the solution set ?
A. (2, 5)
C. (2,-7)
B. (3,1)
D. (-2,-3)
Answer:
5
C. 2
6.
A. (4, 5)
7.B.broken
line.
8.A.above the line
9.. 2x + y < 4
10.D. (-2,-3)
Answer:
5
C. 2
6.
A. (4, 5)
7.B.broken
line.
8.A.above the line
9.. 2x + y < 4
10.D. (-2,-3)
Step-by-step explanation:
PLEASE MARK ME AS BRAINLIEST
40 POINTS AND BRAINLIEST HELP! 7TH GRADE MATH QUESTION!
3. The length of FH is 9 cm. What is the length of GK?
Answer:
its also 9cm
............................
help please, the image is attached.
Answer:
A
Step-by-step explanation:
A
solve for y
6=2(y+2)
Answer:
Y = 1
Step-by-step explanation:
Distribute 2 to (y+2):
6 = 2y + 4
Subtract 4 on both sides:
2 = 2y
Divide by 2 on both sides:
2 = y
Hope this helps :)
Answer:
Y = 1
Step-by-step explanation:
I dont have a explanation I searched it up for you :)
What is the solution to the system of equations below?
y=-1/3x+6 and x=-6
(-6,8)
(-6.4)
(8.6)
(4-6)
In the triangle PQR, PQ= 7, QR= 8, and PR= 14. Which is the largest angle?
a.) this cannot be determined
b.) /PRQ
c.) /PQR
d.) /QPR
A N D ! !
Which combination of measurements could form a triangle?
a.) 11m, 21m, 33m
b.) 6m, 9m, 16m
c.) 16m, 24m, 38m
d.) 22m, 28m, 51m
Answer:
the largest angle=<PQR
c.) 16m, 24m, 38m
The largest angle of the triangle is ∠PQR and the measurements of the triangles are 16m, 24m, 38m
What is a Triangle?A triangle is a three-sided flat figure or polygon with three angles.
A triangle has three vertices, and the internal angles amount to 180°.
∠A + ∠B + ∠C = 180°
The area of the triangle = ( 1/2 ) x L x B
For a right angle triangle
From the Pythagoras Theorem ,
if a² + b² = c² , it is a right triangle
if a² + b² < c² , it is an obtuse triangle
if a² + b² > c² , it is an acute triangle
Given data ,
Let the triangle be represented as ΔPQR
Now , the measure of side PQ = 7
The measure of side QR = 8
The measure of side PR = 14
Now , for a triangle , the angle opposite the smallest side of a triangle has the smallest measure.
And , the angle opposite the largest side has the largest measure
So , the angle opposite to the side PR = ∠PQR
Therefore , The triangle's largest angle is ∠PQR
Now , the measure of the sides of the triangles are given and
a + b > c
when a = 16 , b = 24 and c = 38
16 + 24 > 38
40 > 38
Therefore , the measures 16m, 24m, 38m form a triangle
Hence , the triangles are solved
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7/12
Which expression is equivalent to this fraction?
Answer:
12/7
Step-by-step explanation:
yes ! cd
Fill in the blanks
slope m = _____
y intercept = ______
equation = _____
Hint: y = mx + b
Answer: y = 4
Step-by-step explanation:
Slope m = 0
y intercept = 4
equation = y = 0x + 4 or just y = 4
Answer:
m= 0
y intercept= 4
Equation= Y=0x+4
Step-by-step explanation:
Pls help me out... :)
Answer:I think the answer is 112
Step-by-step explanation:
The sum of twice a number and 4 times another number is 4. The difference of the numbers is 5. Find the numbers(help a sis out)
Answer:
1st number = 4
2nd number = -1
Step-by-step explanation:
Let n = 1st number
Let m = 2nd number
2n + 4m = 4
n - m = 5
Substitu method, let n = 5 + m
2(5+m) + 4m = 4
10 + 2m + 4m = 4
6m = -6
m = -1
find n:
n - (-1) = 5
n + 1 = 5
n = 4
Concession stand sales for football games totaled $1,563. The actual cost for the food and beverages was $395. How much profit did the concession stand make?
Answer:
$1168 i think
Step-by-step explanation:
Can someone help me solve this matrix
Answer:
You cant add a negative number.
Step-by-step explanation:
If you add a negative number you will not have a full answer.
pls help <3 i mean i’m sure it’s easy but i don’t know what to write.
simplify 3(tan^2 theta - sec^2 theta)
a. 1
b. 0
c. -3
d. 3
*ITS NOT D*
Answer:
it's option c. - 3
Hope it will help :)❤
Answer:
c. -3
Step-by-step explanation:
How much sand is needed to fill a pit that
is 10m deep and 8m wide and 12m long?
Answer:
The answer is 960cm3
Step-by-step explanation:
you multiply all the numbers
SUPER DUPER PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP
For each value of x, determine whether it is a solution to 5x>/40.
8: yes or no
11: yes or no
4: yes or no
10: yes or no
Answer:
no
yes
no
yes
Step-by-step explanation: