i need help with this

By using Heron's formula and standard formula for the area of a triangle, the area of the composite figure is 921006.497 square meters.

In this problem we must determine the area of a composite figure, which consists in subtracting the area of an isosceles triangle from the area of the equilateral triangle:

Big triangle

The area of the big triangle is determined by Heron's formula:

s = [3 · (520 m)] / 2

s = 780 m

A = √[(780 m) · (1560 m - 520 m)³]

A ≈936693.077 m²

Small triangle

H = (520 m) · sin 60°

H ≈ 450.333 m

h = 450.333 m - 390 m

h = 60.333 m

A = 0.5 · (520 m) · (60.333 m)

A = 15686.580 m²

Then, the area of the composite figure is 921006.497 square meters.

To learn more on Heron's formula: https://brainly.com/question/20934807

#SPJ1

Answer:

  angle 5

Step-by-step explanation:

Given transversal x crossing lines y and z and angles numbered 1 to 8, you want the number of the angle that is an alternate interior angle to angle 4.

In this context, "alternate" mean the angles are on opposite sides of the transversal. "Interior" means the angles are between the lines the transversal crosses.

The term "alternate interior angles" is used to refer to angles that have their vertices at the intersection points where the two lines cross the transversal. (It excludes angles that have the same vertex, or do not share a side.)

The angle that is an alternate interior angle relative to angle 4 is angle 5.

Answer: 1. [-8, 8]

2. [-27, 27]

Step-by-step explanation:

1. |X|≤8

x≤8 or x>=-8

-8<=x<=8 ==> [-8, 8]

2. |X|≤27

x≤27 or x>=-27

-27<=x<=27 ==> [-27, 27]

$72 is 4.5% of 6.25 amount. 6.25 Percentage of  72 is 4.5.

By considering the given information

[tex]72\times x=4.5\\x=\frac{4.5}{72}\times 100\\ x=6.25[/tex]

A number or ratio that can be expressed as a fraction of 100 is referred to as a percentage in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The percentage therefore refers to a part per hundred. Per 100 is what the word percent means. The letter "%" stands for it. percent, which is a relative value used to denote hundredths of any quantity. Since one percent (symbolized as 1%) is equal to one hundredth of something, 100 percent stands for everything, and 200 percent refers to twice the amount specified.

Learn more about percentage here

https://brainly.com/question/24304697

#SPJ9

$72 is 4.5% = $3.24

Solution :

The percentage is a rate or proportion per hundred,

The percentage is also used more generally to mean any proportion, as in Studies have shown that a large percentage of people love cute animals.

A percent is one one-hundredth (1/100) of something. The percentage refers to the rate or proportion of that one hundred. Usually, you will see the word percentage used in math equations or statistics or when someone is measuring the increase and decrease in rates

$72 is 4.5% =?

$72  is 10% = $7.2

$72 is 5% = $7.2 /2 = $3.6

$72 is 1/2%= $72 * .5/100 = $.72*.5 = $ 0.36

$72 is 4.5% = 5% - .5% = $3.6- $.36 = $3.24

$72 is 4.5% = $3.24

More details : brainly.com/question/13450942

#SPJ9

Answer:

60,000

Step-by-step explanation:

going straight across the line we can see that for $140 the demand in thousands 60

so

you can buy 60,000 units

Answer:

60 because oficial the line goes to 60

Answer:

10

Step-by-step explanation:

(21-1)/2

The length with scale factor to form quadrilateral 1/2, A'B' is √5 units when AB is √20.

The formula to find the distance between the two points is usually given by

d=√((x2 – x1)² + (y2 – y1)²).

Given :

Quadrilateral ABCD is dilated at the center (0,0) with a scale factor of 1/2 to form quadrilateral A'B'C'D'.

Points - A(0,4), B(4,2), C(4,-4), and D(-2,-2).

So, the points of the quadrilateral ABCD becomes:

So,  length of A'B'

AB = √(4-0) ² +(2 -4)²

AB = √16 + 4

AB = √20

AB = 2√5

A'B' = 1/2 AB

A'B' = √5

Learn more about distance formula here:

https://brainly.com/question/12699379

#SPJ1

Answer:

Step-by-step explanation:

if we consider mod then the negative turns to positive and positive remains positive so it will be

279 < 282 which is l279l < l-282l

Answer:

17,84,9,34,71,35,18

Step-by-step explanation:

Answer:

n/10 x 10/60,000

Step-by-step explanation:

I think it's right please don't report

Answer:

N/10 x 10/60,000

Answer:

4

Step-by-step explanation:

you do cross multiplication

you do 3x12÷9

Solving for the variable gives f = 100 - 2h/5

Subject of formula can be defined as the variable that is expressed in terms of other variables in a given expression, function of equation.

It is the variable worked out in an equation and left to stand on its own on one side of the equality sign

Given the equation;

5f+2h = 100

To make 'f' the subject of formula, we take the following steps;

Take '2' over the equality sign

5f = 100 - 2h

Now, let's make 'f' the subject by dividing both sides by its coefficient which is 5

We have;

5f/5 = 100 - 2h/5

Divide through

f = 100 - 2h/5

Thus, solving for the variable gives f = 100 - 2h/5

Learn more about subject of formula here:

https://brainly.com/question/10643782

#SPJ1

Answer:

23%

Step-by-step explanation:

39.36-32=7.36

7.36/32=.23

23 percent

For the rare case that the outcome of the second derivative matrix examination is inconclusive, higher order derivatives have to be examined.

What do math extrema mean?

Learn more about extrema mean

brainly.com/question/2272467

#SPJ4

Answer:

The coordinates of W,X,Y,Z are W= (3,4) X= (1,4) Y= (2,1) Z= (4,2)

Step-by-step explanation:

When you reflect the coordinates to the other side of the graph, you get these^^^^ coordinates.

Answer:

see image.

Step-by-step explanation:

Basically, what's happening here is you are adjusting one of the terms so that they both have the same exponent. Then you can factor out that 10^11 term and just add the two remaining terms.

see image.

Answer:

Let first angle be x

x+x+6+x-12=180°

3x-6=180°

3x=186

x=63°

First angle=63°

Second Angle=69°

Third angle=51°

Hope it helps you

Answer:

positive the answer is 3

Step-by-step explanation:

Answer:[tex]f(2) =28[/tex]

Step-by-step explanation:

When it says f(2), it means to plug 2 into the x in the function f(x), so therefore:

[tex]12(2)+4\\\\24+4\\\\28[/tex]

Answer:

9.25x

Step-by-step explanation:

Answer:

£8.22

Step-by-step explanation:

9x33=£297

297-24.40=£272.60

297×4%=£11.88

297+11.88=£308.88

24.40×15%=£3.66

24.40+3.66=£28.06

308.88-28.06=280.82

280.82-272.60=£8.22

Answer:1.75

Step-by-step explanation:

7x+8=3x+15

4x+8=15

4x=7

x=1.75

Answer:

The domain is [-∞,∞]

Step-by-step explanation:

[tex]7^0 = 1\\1^x = 1, solve\ for\ x.\\[/tex]

1 raised to any and every power will always equal 1.

Step-by-step explanation:

Given :[tex](1)^{x} =1[/tex]

Given that the base of the exponent is 1 now you should apply the rule that any 1 to the power any number is 1 and that any number to the power of 0 is 1 so that makes us comer to a conclusion that x can be any positive Integer.

therefore the answer is

X∈(+)z

z representing the integer in symbol

hope this helps..!!!!!!

Answer:

What is 80% of 63?

50.4 is the right answer

The length of the base will be equal to 65.99 centimeters.

Pythagorean theorem states that in the right angle triangle the hypotenuse square is equal to the square of the sum of the other two sides. According to this statement, the areas of the squares on the other two sides add up to the size of the square whose side is the hypotenuse.

The formula for the Pythagorean theorem is given below:-

H² = B² + P²

Given that in a right triangle if the hypotenuse is 70 cm and the shorter leg is one-third the length of the longer leg.

P = 70/ 3 cm

H = 70 cm

The value of the leg will be calculated as:-

H² = B² + P²

70² = B² + (70/3)²

B² = 70² -  (70/3)²

B = √4355

B = 65.99 cm

Therefore, the length of the base will be equal to 65.99 centimeters.

To know more about the Pythagorean theorem follow

https://brainly.com/question/343682

#SPJ4

Answer:

1. 27

2. 18

3. 905.400

4. 6.830

Step-by-step explanation:

Any number (ending number/last number) with 1,2,3,4 is rounded down, and any number (ending number/last number) with 5,6,7,8,9 is rounded up.

1. It is closer to 27.

2. it is closer to 18.

3. It is closer to 905.400

4. It is 6.825 which ends in 5 so it is rounded up.

The inverse is the false and the Converse is the true.

According to the statement

We have to find that the contra positive, and converse are true.

So, For this purpose, we know that the

A conditional statement may be a statement which will be written within the form “If P then Q,” where P and Q are sentences. For this conditional statement, P is named the hypothesis and Q is termed the conclusion.

From the given information:

if 3 could be a prime quantity then 5 is a fair number.

Then

a) Inverse: If 3 isn't a primary number, then 5 isn't a fair number. (True)

Contra positive: If five isn't an excellent number, then 3 isn't a main number. (False)

Converse: If 5 is a good number, then 3 may be a prime quantity. (True).

And

b) if 7 < 5, then 5 < 3

This statement is that the false because the primary statement is that the false.

So, The inverse is the false and the Converse is the true.

Learn more about conditional statement here

https://brainly.com/question/11073037

#SPJ4