Cant seem to figure out the total surface area

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!

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.

Complete question :

A landscaper drew a scale drawing of a rectangular yard using the scale, , before beginning to work on the yard.

(a) The landscaper plans to put a fence around the entire yard. How many meters of fencing does she need? Show your work.

(b) The landscaper plans to create a rectangular garden that is the size of the actual yard. What is the area of the garden?

Answer:

28cm ; 48cm²

Step-by-step explanation:

From the diagram :

Length = 8cm

Width = 6cm

Meters of fencing required :

Perimeter of rectangle :

P = 2(length + Width)

P = 2 (8cm + 6cm)

P= 2(14cm)

P = 28 cm

2.)

Area of rectangle :

Length * width

8cm * 6cm

= 48cm²

Answer:

4(2s +5)

Step-by-step explanation:

.............

Answer:

Step-by-step explanation:

r=6.7

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

Answer:

square pyramids

Step-by-step explanation:

Square pyramids because they have corners and the storage box is shaped like a cube. If he gets things with rounded edges, then there will be empty space between each water tank.

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.

Responder:

x = 3/2

Explicación paso a paso:

Dada la ecuación

9 x + (x - 7) = (5 x + 4) - (8 - 3 x)

Debemos encontrar el valor de x que satisface la ecuación

9 x + (x - 7) = (5 x + 4) - (8 - 3 x)

Expandir

9x + x-7 = 5x + 4-8 + 3x

Recopile los términos similares;

9x + x-3x-5x = 4-8 + 7

2x = 3

x = 3/2

Responder:

x = 3/2

Explicación paso a paso:

Dada la ecuación

9 x + (x - 7) = (5 x + 4) - (8 - 3 x)

Debemos encontrar el valor de x que satisface la ecuación

9 x + (x - 7) = (5 x + 4) - (8 - 3 x)

Expandir

9x + x-7 = 5x + 4-8 + 3x

Recopile los términos similares;

9x + x-3x-5x = 4-8 + 7

2x = 3

x = 3/2

Por lo tanto, el valor de x que hace que la ecuación sea igual es 3/2

Answer:

a=√x3x

Step-by-step explanation:

I solved this by  combining expressions and isolating the variable a. mabey I did this wrong and this is not what you learned

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.

Answer:

Step-by-step explanation:

I’m not smart

$41.25

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

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

Answer:

ill help u lol im pretty positive its 8

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]

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

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

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

Answer:

Step-by-step explanation:

Corresponding parts of congruent triangles are congruent

WX ≅ DC

XY ≅ CY

WY ≅ DY

∠WXY ≅ ∠DCY

∠XWY ≅ ∠CDY

∠WYX ≅ ∠DYC

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

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

Answer:

$554.40

Step-by-step explanation:

Answer:

$110

Step-by-step explanation:

1/6 x 660

it is gonna be c trust me I know for a fact

Step-by-step explanation:

Hi...

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