The area of triangle ABD above can be found using the formula
​Area= xy/2 - (x-z)y/2
Explain how the formula was derived, then simplify the formula.

Answer:

x=90 y=33

Step-by-step explanation:

similar, so you can reflect x and y across, and x is altitude so x=90

90+y+47=180

90+y=123

y=33

Answer: 1070cm2

Step-by-step explanation: Hi there

(Not taking the number of squares into account)

1. Convert 6500 millimeters to centimeters

6500mm=650cm

2. Add the area of the wood

650+210+210=1070

So the total area is 1070 cm2

Have a nice day! :)

Answer:

I think it's the 3rd one 61 hope this helps

Answer:

its 939.9 i think i multiplied 1.30 by 723 to get 939.9 so i believe its 939.9

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Since the laptop is on sale for 40% off, the discount is 40% of the regular price. Note that they are asking for the discount and not the discounted price.

Discount

= 40% ×$450

= ⅖ ×$450

= $180

Thus, option c is correct.

Answer:

I think it is 10 is the answer

Answer:

64 ounces

Step-by-step explanation:

In a whole gallon there are 128 ounces. So if you want to figure out a half gallon then 128/2=64oz

Answer:

V = 147 cm^3

Step-by-step explanation:

cut the shape into two boxes, one with dimensions of 13 x 3 x 5 and one with 2 x 5 x 3. Then solve for V for both then add.

Answer: 6400

Step-by-step explanation:

speed = distance/(divdided by)time

           = 16000/2.5

           = 6400

Answer:

370

Step-by-step explanation:

Round each answer into easier to add numbers. 92 and 91 round down to 90. 9 rounds up to 10.

Answer:

aprox 280

Step-by-step explanation:

if you need to add these numbers quickly you can estimate either with an overestimation or under estimation:

for an over estimation, you can find the nearest 10 or 100 that each value is so for this you have 92 + 91 +92 +9 which is close to 100 +100+100+10

so using this you can quickly guess that it would be somewhere around 310

for an under estimation you can do the same thing but rounding down so we instead would add 90 + 90 + 90 + 10 which gives 280

now using both we know the answer would be somewhere between 280 and 310

There's no 12p in the simplification

[tex](2p+3)^{2} =(2p)^{2} +3^{2} = 4p^{2} +9[/tex]

The equation that represents the value of the car is v = $5000(1.085)^x.

Appreciation means when the value of a car increases with the passage of time. The formula that can be used to represent appreciation is:

FV = P (1 + r)^n

Where:

V = 5000(1.085)^X

To learn more about future value, please check: https://brainly.com/question/18760477

Answer:

21 days

Step-by-step explanation:

Start off by finding out what 30% of 350 is. Which is 105. Then divide 105 by 5 which gives you 21.

Hope this helps!

2. You see them in your face:

[tex]\displaystyle m∠F ≅ m∠C;[/tex][tex]$\overline{FD}$[/tex] ≅ [tex]$\overline{CA}$[/tex]

[tex]m∠E ≅ m∠B;[/tex][tex]$\overline{FE}$[/tex] ≅ [tex]$\overline{CB}$[/tex]

[tex]m∠D ≅ m∠A;[/tex][tex]$\overline{ED}$[/tex] ≅ [tex]$\overline{BA}$[/tex]

To sum up, corresponding parts of congruent triangles are always congruent [CPCTC].

1. The edge and angle markings of both triangles represent all corresponding parts. Each angle and edge corresponds with another angle and edge.

I am joyous to assist you at any time.

Answer:

[tex]y=-\frac{2}{3}x+4[/tex]

Step-by-step explanation:

First you divide every number in the equation by 3:

2x+3y=12

÷3    ÷3   ÷3

Rewrite equation:

[tex]y=-\frac{2}{3}x+4[/tex]

Hence the correct answer is [tex]y=-\frac{2}{3}x+4[/tex]

Answer:

X =  12

Step-by-step explanation:

25 + 114 = 139

180 - 139 = 41

41 + 19 = 60

60 / 5 = 12

Answer:

2(4b-1)

Step-by-step explanation:

1. You would have to distribute first. So basically you just multiply 4 · 2b which gives you 8b and then 4 · 2

Answer to first step: -10+8b+8

2. Add the numbers. It should be -10 + 8 which would give you -2

Answer to second step: -2 + 8b

3. Rearranging the terms. So, instead of doing -2 + 8b you would have to do 8b - 2

Answer to third step: 8b - 2

4. 2(4b - 1) Find what times what gives you 8 (not 1 times 8) and the same for -2

Hope this helped!

[tex]\sf -3\le x\le3[/tex]  as the line has the ends which has closed dot to indicate that the endpoint is part of the solution. Also its between the points -3 and 3.

Answer : As The Line Is Not Dotted And Straight Filled Line And Its Between The Points -3 And 3.

◊ YusuCr ◊

Answer:

uh

Step-by-step explanation:

I'm not in the grade for this

Answer:

the answer for the first part is 260

the equation is n+8

Step-by-step explanation:

all you need to do is take the starting number witch is 13 then you add 8 and then take that number and add 8 so thats why the equation is n+8 n equaling the starting number and 8 equaling to the reoccurring number.

Answer:

x =39°

the total interior angles of a triangle is 180°

let the unknown angle be x,

solve:

x + 39 + 102 = 180°

x = 180° -  39° - 102°

x = 39°

Therefore the unknown angle is 39°

Answer:

Step-by-step explanation:

-x - y = -2

x - 2y = 2

-3y = 0

y = 0

x = 2

(2, 0)

Answer:

Screenshots

Step-by-step explanation:

Hope this helps

Answer:

137.13km

Step-by-step explanation:

A right triangle is formed, where h + r = 2+ 4700= 4702 km is the hypotenuse, r = 4700km is one leg and d is the other leg. By Pythagorean theorem:

4702² = 4700² + d²

d² = 4702² - 4700²

d = √18,804

d = 137.13 km

Answer:

71°

Step-by-step explanation:

Line AB is parallel to line CD and that makes the angle given as 109 and the co-interior angle supplementary

since the sum of supplementary angles is equal to 180° :

180 - 109 = 71 is the measure of the co-interior angle

Answer:

  about 154 square feet

Step-by-step explanation:

The area of the pool is given by the formula for the area of a circle:

  A = πr²

  A = π(7 ft)² = 49π ft² ≈ 153.94 ft²

About 154 square feet of material will be needed to cover the top of the pool.

__

Additional comment

The circumference of the pool is 2πr, or 14π feet -- about 44 feet.

Answer:

5/3

Step-by-step explanation:

An improper fraction is a fraction, not in mixed form, where the numerator (top half) is greater than the denominator (bottom half). Since this fraction is 1 2/3, we already have 1 full and 2/3 full. So, since the 1 is full, it means that in fraction form it equals 3/3.

We can finally add the fractions. [tex]2/3+3/3=5/3[/tex].

Answer:

[tex]-\frac{32}{3} x^9y^4[/tex]

Step-by-step explanation:

[tex](-\frac{4}{3} x^1y^3) (8x^8y^1)[/tex]

[tex]-\frac{4}{3}*8=-\frac{32}{3}[/tex]

[tex]x^1*x^8=x^{1+8} =x^9[/tex]

[tex]y^3*y^1=y^{3+1}=y^4[/tex]

[tex]-\frac{32}{3} x^9y^4[/tex]

Hope this helps!

ATypically this is something done for factoring. To do that, I use trail and error. Do you need to do it by a system of equations?

Answer:

the sum of the first 20terms

Answer:

$4.67

Step-by-step explanation:

280/60=4.66666666667

so $4.67