Glenn needs to cut pieces of ribbon that are each 1 meter long to make ribbon key chains.
If he has 2 pieces of ribbon that are each 1 dekameter long, how many 1−meter pieces of ribbon can he cut?
Answer:
20
Step-by-step explanation:
dekameter=10 meters
dekameter*2
20 meters
20/20=1
20 meter long pieces
HELP!!! Find the measure of each angle.
Answer:
Step-by-step explanation:
This figure is called a cyclic quadrilateral. The vertices of all sides lie on a circle.
That's property one.
Property 2 is that the opposite angles add to 180 degrees.
6y - 4 + 5y - 3 = 180 is the y angles. Combine like terms.
11y - 7 = 180 Add 7 to both sides.
11y - 7 + 7 = 180 + 7
11y = 187 Divide by 11
y = 187/11
y = 17
H = 17 * 6 - 4
H = 102 - 4
H = 98
F = 5y - 3
F = 5*17 - 3
F = 85 - 3
F = 82
=====================
11x + 8 + 8x + 1 = 180
19x + 9 = 180
19x = 171
x = 171/19
x = 9
E = 9*11 + 8
E = 99+8
E = 107
G = 8*9 + 1
G = 72 + 1
G = 73
Can some one plz help i really dont wna failll plzzz
LINKS WILL BE REPORTED
Zane and his favorite geometry student, , have just set sail for a day of fun on lake Erie. A spring squall quickly forms and catches you off guard, leaving you adrift on the lake. Zane suddenly discovers he has an irrational fear of water and is reduced to hugging the mast. You hear Sherman barking from the top of a lighthouse to help guide you to shore. In order to save Zane and yourself, you must calculate how far away you are from this lighthouse. Using a range finder, you expertly measure the distance from the sailboat to the top of the lighthouse at 350 yards.
angle B is 40 degrees.
(a) Based on the above information, find the distance across the water from the sailboat to the island
where the lighthouse is standing. You can only use trigonometry to solve. You must show all work for
credit. Round your answer to the nearest whole number if needed.
(b)Calculate the height of the lighthouse. You can only use trigonometry or Pythagorean Theorem to
solve.
Water is the Adjacent of this right triangle. 350 yards is the length of the Hypotenuse. We have given angle B, 40 degrees.
_________________________________________________________
According to SOH CAH TOA, we use CAH (cosineΘ = adjacent/hypotenuse).
Θ = 40hyoptenuse = 350adjacent = xcosine40 = x/350
[multiply both sides by 350]
350 · cosine40 = x
[put calculator in degree mode]
x ≈ 268 yards
So, the distance across the water from sailboat to the island is 268 yards.
_________________________________________________________
Let's use pythagorean theorem since we already know the adjacent and hypotenuse to find the opposite (opposite is also known as height).
a^2 + b^2 = c^2
a = ? (opposite or height)b = 268 (adjacent)c = 350 (hypotenuse)a^2 + (268)^2 = (350)^2
a^2 + 71824 = 122500
a^2 = 122500 - 71824
a^2 = 50676
[square both sides]
[tex]\sqrt{a^2}[/tex] = [tex]\sqrt{50676}[/tex]
a = [tex]\sqrt{50676}[/tex]
a ≈ 225
So, the height, opposite, of the lighthouse is 225 yards.
_________________________________________________________
ANSWER: a) 268 yards b) 225 yardswhat is the equation that the line goes through (1,-2) and is parallel to y=3x-3?
A. y-1=3(x+2)
B. y+2= -1/3(x-1)
C. y=3x+2
D. y+2=3(x-1)
Answer:
Step-by-step explanation:
Parallel lines have the same slope.
Point-slope equation for line of slope 3 that passes through (1,-2):
y+2 = 3(x-1)
(Score for Question 2: ___ of 8 points)
2. Find the Perimeter and area of the following shape using correct math
a. Perimeter:
b. Area
Answer:
(a) 33.7 cm
(b) 79.25 cm²
Step-by-step explanation:
(a)
Find the perimeter of the semicircle (circumference ÷ 2).
10 cm is the diameter of the semicircle.
The perimeter of the semicircle
= (10 × 3.14) ÷ 2
= 31.4 ÷ 2
= 15.7 cm
The perimeter of the shape
= 15.7 + 10 + 4 + 4
= 33.7 cm
(b)
Find the area of the circle then divide to 2
The formula of the area of a circle
= πr²
The radius of the circle
= 10 ÷ 2
= 5 cm
The area of the semicircle
= (3.14 × 5²) ÷ 2
= 78.5 ÷ 2
= 39.25 cm²
The area of the rectangle
= 4 × 10
= 40 cm²
The area of the shape
= 39.25 + 40
= 79.25 cm²
Which expression is equivalent to 12(2x - 3y + 4)?
Answer:
24x - 36y + 48
Step-by-step explanation:
12 (2x - 3y + 4)
Distribute the term outside of the parenthesis, multiply each term inside the parenthesis by the term outside of the parenthesis.
(12)(2x) - (12)(3y) + (12)(4)
24x - 36y + 48
Answer:
Step-by-step explanation:
Where are the expressions?
can the height of a cylinder be a fraction
WILL GIVE BRAINLIEST IMMEDIATELY!!!!!!!
In the diagram below, Δ DEF is reflected across the y‐axis to create Δ D′ E′ F′. Which of the following is true?
A. DE|| D'E'
B. EE'||FF'
C. EF ⊥ E'F'
D. DE ⊥ D'E'
IF YOU PUT RANDOM NONSENSE ANSWERS OR A LINK I WILL REPORT YOU AND EMAIL BRAINLY.
Answer:
B
Step-by-step explanation:
When flipping, the y-levels of E' and F' do not change, meaning that as they are transferred across the y-axis, they keep their parallel to the original points.
after allowing 15% discount on the price of an article and 13% bat was live and the remaining amount in the price of article becomes 13447 find the market price of an article
Answer:
14000
Explaination:
spwithvat = sp without vat + 13% of sp without vat
let, sp without vat be x.
sp with vat= x + 13% of x.
or, 13447 = x + 13/100 × x
or, 1344700 = 113x
or, x= 1344700/113
x = 11900
Let, mp be y.
sp with vat = mp - 15% of mp
or, 11900 = y - 15/100 × y
or, 1190000 = 85y
or, y= 1190000/85
y= 14000
Which expression has the greatest value?
This is for today someone help me!!!
Answer:
Centre = (2, -3)
radius = 5units
Step-by-step explanation:
The standard form of a circle is expressed as;
x²+y²+2gx+2fy+c = 0
Centre = (-g, -f)
radius r = √g²+f²-c
Given the equation;
x²+y²-4x+6y-12 = 0
Compare
2gx = -4x
2g = -4
g = -2
Similarly;
2fy = 6y
2f = 6
f = 3
Centre = (-(-2), -3)
Centre = (2, -3)
Radius = r = √(-2)²+3²+12
r = √4+9+12
r = √25
r = 5 units
Show that <1+<2+<3=180, if line l and m are parallels cut by two transversals.
Step-by-step explanation:
Angle 1 2 and 3 are angles that are in a triangle and all the angles in a triangle always add up to 180
so <1 +<2 +<3=180
Hope that helps :)
I need this done thanks!
Geometry I need help ASAP please
Answer:
Angle B=92
Arc DCB=228
Step-by-step explanation:
Arc DCB intercepts Angle A.
Arc DCB is twice of Angle A so that means Arc dCB=228
Angle C is supplementary so Angle B equal 92.
Find the percent of the number. 45% of 45 is
Answer:
20.25
Step-by-step explanation:
Answer:
20.25
Step-by-step explanation:
Use the “ %/100 = is/of ” method
45 ?
__ = __
100 45
cross mutilps 45(45) = 2,025
then divide 2,025 by 100 = 20.25
7th grade math help me pleaseee
Step-by-step explanation:
1. -6u= -29-7
-6u÷-6= -36÷-6
u= 6
2. 6m= -23-1
6m÷6= -24÷6
m=-4
3. 4d=37-5
4d÷4=32÷4
d=8
Answer:
4. -6u+7=-29
-6u=-29-7
-6u=-36
-6u=-36
(divide both sides by-6 )
-6u/-6=-36/-6
u=6.
5. 6m+1=-23
6m=-23-1
6m=-24
divide-24 by 6
m=-4
6. 5+4d=37
4d=37-5
4d=32
divide by 4
d=8
Which is the angle of depression from the top of the waterfall to Kelley? ∠5 ∠8 ∠7 ∠6
Answer: 6
Step-by-step explanation:
Answer:
∠6
Step-by-step explanation:
I Need With This One :(
Answer:
(-5, 2)
Step-by-step explanation:
The answer is where the two lines intersect
will give brainlist
Answer:
The answer is d i believe
Step-by-step explanation:
I cant get this answer it has to do with im using circumference and radius, diameter d=3x2=6m. Please help quick!
Answer:
C= 2 πr =18.85 m
Step-by-step explanation:
diameter= d= 6m
Radius = diameter/2= 6/2 = 3m
The circumference can be found by two formulas. One by using diameter and the other by using radius.
C= πd = 6* 3.14= 18.85 m
or
C= 2 πr = 2*3.14*3= 18.85 m
Using both the formulas gives the same answer.
The diameter is the line dividing the circle into half passing through the center.
The radius is half of the diameter or the lines which joins the center to the circumference of the circle.
Which graph shows this system of equations?
Answer:
2nd
Step-by-step explanation:
Answer:
The 2nd graph
Step-by-step explanation:
Trust me bro
Convert the following quadratic equation to standard form:
y= -2(x+3)^2+1
Answer: -2x^2-12x-17
Step-by-step explanation:
-2(x+3)^2+1 Original equation
-2(x^2+3x+3x+9)+1 factor (x+3)(x+3)
-2x^2-12x-18+1 Multiply the factored part by -2
-2x^2-12x-17 Combine like terms
Can anyone help me with this math equation pleasee?
Answer:
9/20
Step-by-step explanation:
45/100.
5 is a common factor so simplified = 9/20
HELLPPP! EASY QUESTION
- no links pls
Answer:
B
Step-by-step explanation:
it is a function but not a line
Answer:
b) a nonlinear function
Step-by-step explanation:
it's exponential so it's a nonlinear function.
i hope this is right. p.s. if it helps i really need brainliest :)
A right circular cylinder has a base radius of 6 centimeters and a height of 12 centimeters. What is the volume of this cylinder? A. B. C. D.
Answer: [tex]432\pi \text{ cubic centimeters}[/tex] or [tex]1356.48\text{cubic centimeters}[/tex]
Step-by-step explanation:
Volume of right circular cylinder = [tex]\pi r^2 h[/tex]
Given: Radius = 6 centimeters
Height = 12 centimeters
Then, the volume of this cylinder = [tex]\pi (6)^2 \times (12)= 432\pi \text{ cubic centimeters}[/tex]
Hence, the volume of this cylinder = [tex]432\pi \text{ cubic centimeters}[/tex]
At [tex]\pi=3.14[/tex]
The volume of this cylinder[tex]=432\times3.14=1356.48\text{cubic centimeters}[/tex]
Mrs. Avery is going to randomly select one student from her class to read a poem out loud. There are 151515 boys and 131313 girls in her class.
What is \text{P(boy})P(boy)start text, P, left parenthesis, b, o, y, end text, right parenthesis?
Answer:
53.57%
Step-by-step explanation:
Answer:
53.57%
Step-by-step explanation:
Sally's high school is planning their spring musical. The revenue, R, generated can be determined by the function R(t)=-33t^2+360t , where t represents the price of a ticket. The production cost, C, of the musical is represented by the function C(t) = 700+5t. What is the highest ticket price, to the nearest dollar, they can charge in order to not lose money on the event?
Answer: t=8
Step-by-step explanation:
The highest ticket price that they can charge in order to not lose money on the event will be $8.16.
What is a function?A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.
Sally's secondary school is arranging their spring melodic. The income, R, is created still up in the air by the capability R(t) = -33t² + 360t, where t addresses the cost of a ticket. The creation cost, C, of the melodic is addressed by the capability C(t) = 700 + 5t.
The highest ticket price that they can charge in order to not lose money on the event will be given as,
C(t) = R(t)
700 + 5t = -33t² + 360t
33t² - 355t + 700 = 0
Solve for 't', then we have
t = [-(-355) ± √((-355)² - 4 × 33 × 700)] / (2 × 33)
t = [355 ± 183.37] / 66
t = 5.378 ± 2.778
t = 5.378 + 2.778, 5.378 - 2.778
t = 8.16, 2.60
More about the function link is given below.
https://brainly.com/question/5245372
#SPJ2
The central angle of arc ST is 70 degrees. What is the measure of an inscribed
angle whose endpoints are points S and T?
Answer:
35
Step-by-step explanation:
The measure of an inscribed angle whose endpoints are points S and T will be 35°.
What is a circle?It is the close curve of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.
The central angle is double the angle at the periphery that was subtended by the same chords.
The central angle of arc ST is 70°.
The measure of an inscribed angle whose endpoints are points S and T is given by the half of the central angle of arc ST. Then we have
Inscribed angle = 70° / 2
Inscribed angle = 35°
The measure of an inscribed angle whose endpoints are points S and T will be 35°.
More about the circle link is given below.
https://brainly.com/question/11833983
#SPJ2
help pleaseeeeeeeee!!!
Answer:
Step-by-step explanation:
you can try the right angled triangle method too but its a little longer.