Find the answer for m∠EFD
Given:
In triangle DEF, [tex]DE = EF[/tex] and [tex]m\angle 98^\circ[/tex].
To find:
The measure of angle EFD.
Solution:
In triangle DEF,
[tex]DE = EF[/tex] (Given)
It means triangle DEF is an isosceles triangle.
[tex]m\angle EDF=m\angle EFD[/tex] (Base angles of an isosceles triangle are equal)
Using angle sum property in triangle DEF, we get
[tex]m\angle DE F+m\angle EFD+m\angle EDF=180^\circ[/tex]
[tex]98^\circ +m\angle EFD+m\angle EFD=180^\circ[/tex]
[tex]2m\angle EFD=180^\circ-98^\circ[/tex]
[tex]2m\angle EFD=82^\circ[/tex]
Divide both sides by 2.
[tex]m\angle EFD=\dfrac{82^\circ}{2}[/tex]
[tex]m\angle EFD=41^\circ[/tex]
Therefore, the measure of angle EFD is 41 degrees.
Find the inverse equation of y=3x-12
Answer:
[tex]f {}^{ - 1}(x) = \frac{x}{3} + 4[/tex]
Step-by-step explanation:
[tex]y = 3x - 12[/tex]
Flip the variables then solve for y
[tex]x = 3y - 12[/tex]
[tex] \frac{x}{3} = y - 4[/tex]
[tex] \frac{x}{3} + 4 = y[/tex]
[tex]f {}^{ - 1} (x) = \frac{x}{3} + 4[/tex]
A sweatshirt was on sale for 25% off the marked price. The sweatshirt regularly costs $55.00. What is the sale price of the sweatshirt? $
type your answer....
$41.25
workings:100%->$55.00
1%->$55.00÷100=$0.55
25%->$0.55×25=$13.75
100%-25%=75%
Price of sweatshirt during sale->75%->$55.00-$13.75=$41.25
Which answer choice best describes Saundra’s claim?
pls help me to solve this
Answer:
Step-by-step explanation:
I’m not smart
if boards that usually cost $660 are selling at 1/6 less than the normal price, what is there price now? PLEASE ANSEWR TIMED!!!!
Answer:
$554.40
Step-by-step explanation:
Answer:
$110
Step-by-step explanation:
1/6 x 660
what are the coordinates of point E?
Answer:
(4,-4)
Step-by-step explanation:
(x-value, y-value)
Answer:
(4, -4)
Step-by-step explanation:
Just look at the X axis first and then the Y axis
The X axis is the horizontal line
and the y is the verticle line
Please help. I’ve been stuck on this for hours
Answer:
answer is 1
Step-by-step explanation:
PLS HELP. URGENT!!!! I’ll give whatever points
Sixty percent of the flowers in Karen's garden are roses. Which of the following shows 60% roses?
Answer:
I don't see any answer choices or models, so I will tell you that 60% can also be written as 6/10 and 3/5. Whichever model or answer choice represents 3/5 is the correct answer.
Answer: that 60% can also be written as 6/10 and 3/5. Whichever model or answer choice represents 3/5 is the correct answer.
Step-by-step explanation:
hope you help
please help if you can?
Answer and Step-by-step explanation:
The range would be [-5, 0]
This is because the points are included, and this is how far the graph's y-values go.
The range is based of the y-values of the graph, in which it looks for the greatest y value of the graph and the smallest y value of the graph.
#teamtrees #PAW (Plant And Water)
Can y’all recount a story where you were proud of yourself for making a good decision when it was really difficult? Thanks!
Answer:
i was proud of myself when I finally figured out a difficult math problem. I didn't even ask for help. it was a hard time for me but I eventually came through.
PLS HELP Select all the expressions that represent the total area of this rectangle.
Answer:
E and D
Step-by-step explanation:
The area of a rectangle is length x width. In this case, that's (12+s) x 1/3
This can be re-written as 1/3(12+s)
D is 1/3s + 4 which is what happens when you multiply 1/3 by 12 which = 4 and multiply 1/3 by s which = 1/3s. So the answer is 1/3s+4.
A right triangle is a triangle that includes one right angle, measuring 90 degrees. It doesn't matter which of the three angles is 90 degrees. As long as one of them is, it's a right triangle.
What does a triangle need to have in order to be a right triangle?
A.two sides of equal length
B.one 90 degree angle
C.one obtuse angle
D.three sides of equal length
SOMEONE PLEASE ANSWER THIS CORRECT AND ASAP PLEASE TAKE A PICTURE OF IT AND DO IT FROM THERE TO POINT THE RED DOTS SO ITS NOT CONFUSING AND I CAN SEE HOW I CAN PUT IT ON AND PLEASE JUST HELP ME I WILL GIIVE YOU A GOOD RATE, GIVE YOU A THANKS, AND MARK YOU BRAINLIEST JUST ASNWER THIS CORRECTLY AND ASAPPPPPPPP PLEASE!!!!!!!!!! I KNOW I POSTED THIS AGAIN BUT THIS IS PAST DUE AND I NEED SO MUCH HELP THIS IS THE LAST ONE!!!!
What is the approximate area of the circle shown?
Use 3.14 to approximate pi. Round your answer to the nearest whole
number
18 cm
Answer:
254 cm^2
Step-by-step explanation:
18/2 = radius = 9
9^2(Pi) = 254 cm^2
Answer:
254
Step-by-step explanation:
pls pls help
A rectangular piece of paper with length 39 cm and width 20 cm has two semicircles cut out of it, as shown below.Find the area of the paper that remains. Use the value 3.14 for π , and do not round your answer. Be sure to include the correct unit in your answer.
Answer:
The area of the piece of paper is 466 cm²
Step-by-step explanation:
First you would want to find the area of the rectangle
39x20=780 cm²
Both semi-circles are the same, so you can just find the area of the whole circle
The diameter is 20 cm so you would use 10 as the radius
A=πr²
A=3.14x10²
A=3.14x100
A=314
Then you have to subtract the area of the circle from the area of the rectangle.
780-314=466
The area of the piece of paper is 466 cm²
Name the angles and sides of each pair of triangles that are congruent.
Answer:
Step-by-step explanation:
Corresponding parts of congruent triangles are congruent
WX ≅ DC
XY ≅ CY
WY ≅ DY
∠WXY ≅ ∠DCY
∠XWY ≅ ∠CDY
∠WYX ≅ ∠DYC
ARE THESE FUNCTIONS YES OR NO? PLS HELP ME
Andrew is paid £250 a week. Each week, he shares his pay with his sister in the ratio 3 : 2 saves 12% of his share. How many weeks will it take Andrew to save £360?
Answer:
20 weeks
Step-by-step explanation:
The computation of The number of weeks it will take to save £360 is shown below:
Now $250 should be divided into a ratio of 3:2
He keeps = 150
ANd, he gives her = 100
As he saves 12% of his share
i.e.
= 12% of 150
= 18
Now the number of weeks would be
= 360 ÷ 18
= 20 weeks
Which type of transformation is shown?
Answer:
rotation? I think I'm not sure to or reflection
Answer:
rotation
Step-by-step explanation:
size, shape, and angle measures are preserved but orientation is not
Which of these is the algebraic expression for "4 times the sum of 2 and y?"
a 4 ⋅ 2 + y
b 4(2 + y)
c 2 + 4 ⋅ y
d 2(4 + y)
Answer:
b
Step-by-step explanation:
The sum of 2 and y is 2 + y, then 4 times this sum is
4(2 + y) → b
given f(x)=4x^2 and g(x)=-1/5x^2 choose true or false
A f(x) and g(x) have the same axis of symmetry
B f(x) is wider than g(x)
C f(x) is narrower than g(x)
it is gonna be c trust me I know for a fact
Step-by-step explanation:
Hi...
You ask any irrelevant Question, that is why they get deleted.
If your driving 60miles an hour and you drive for 1hour how far do you travel?
Answer:
60 miles
Step-by-step explanation:
There are two ways to solve this:
1. They tell you that you drive at 60 miles an hour, so , in an hour, you drive 60 miles.
2. Is the way you should use in the future:
Distance = speed * time
Substitute the speed and times.
Distance = 60 * 1
Thus, you drive 60 miles in one hour
The distance that should be traveled be 60 miles
As we know that
[tex]Speed = \frac{distance}{time}[/tex]
Here
speed be 60 miles per hour
And, the time should be one hour
So, the distance should be
[tex]= 60\ miles\ per hour \times one\ hour[/tex]
= 60 miles
Therefore the distance that should be traveled be 60 miles
Learn more about the distance here:brainly.com/question/23774048
Can someone help me asap
Answer:
75 degrees
Step-by-step explanation:
All the interior angles of a triangle add up to 180 degrees. Knowing this, we can construct the following equation:
180=65+40+x
180=105+x
Subtract both sides by 105
180-105=105+x-105
75=x
Therefore, angle C has a measure of 75 degrees.
I hope this helps!
please help its due in 5 minutes
Answer: The answer is net B
Step-by-step explanation: If you look at the net it has one rectangle for the base and four triangles for the side. Then when you look at the completed figure the shapes are the same. Also all the other nets have the wrong shapes.
Hope this helps.
(Edit- was lookin at the wrong stuff answer = d lol sorry
which equation best matches the graph shown below ?
Mrs. Williams put $500 into a retirement account that earns 4% interest. How long will it take for there to be $3,500?
What is the A value?
What is the B value?
What is the equation and answer?
9514 1404 393
Answer:
A = 500
B = 1.04
49.6 years
Step-by-step explanation:
We assume your 'A' and 'B' refer to parameters in an exponential formula of the form ...
y = A·B^x
In this form, A is the initial investment value, $500. B is the growth factor, 1+4% = 1.04, assuming interest is compounded annually. We want to find x such that y=$3500.
3500 = 500·1.04^x . . . . . fill in known values
7 = 1.04^x . . . . . . . . . . . . . divide by 500
log(7) = x·log(1.04) . . . . . . take logarithms
x = log(7)/log(1.04) ≈ 49.61 . . . . divide by the coefficient of x
It will take about 49.6 years for there to be $3500 in Mrs. Williams's account.
help please. i have no idea how to do this.
Answer:
ill help u lol im pretty positive its 8
The surface area of this triangular pyramid whose bases and lateral faces are congruent equilateral triangles is
Answer:
The answer is below
Step-by-step explanation:
A triangular pyramid is a pyramid with a triangular base. It is a polyhedron (3 dimensional shape) composed of four triangular faces, six straight edges, and four vertex corners.
The surface area of a triangular pyramid with congruent equilateral triangles = 4 * area of one triangle
Area of one triangle = (1/2) * base * height = (1/2) * 15 in * 13 in = 97.5 in²
Surface area of pyramid = 4 * 97.5 in² = 390 in²