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vichka [17]
2 years ago
8

Find the area of the quadrilateral in the figure.

Mathematics
1 answer:
kirill [66]2 years ago
4 0
<h3>Answer:</h3>

C. 19.64

<h3>Explanation:</h3>

The triangle at upper right is a 3-4-5 right triangle, so has an area that is half the product of the leg lengths:

... upper right area = (1/2)(3 units)(4 units) = 6 units²

The triangle at lower left is an isosceles triangle with base length 5 and side length 6. The altitude to the side of length 5 is a bisector of that side and forms right angles at the point of intersection. Hence we can use the Pythagorean theorem to find the triangle's altitude:

... lower left triangle altitude = √(6² - 2.5²) = √29.75 ≈ 5.45436

Then the area of the lower left triangle is half the product of this altitude and the base length of 5 units:

... lower left area = (1/2)(5.45436 units)(5 units) ≈ 13.6359 units²

The quadrilateral's area is the sum of the areas of these triangles, so is ...

... quadrilateral area = upper right area + lower left area

... = 6 units² + 13.6359 units²

... = 19.6359 units² ≈ 19.64 units²

_____

Confirmed by my geometry program as shown in the attachment.

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Alla [95]

Answer:

x=13 and y =6

Step-by-step explanation:

y=x-7

y=6

Substitute y=6 into the first equation

6 = x-7

Add 7 to each side

6+7= x-7+7

13 = x

x=13 and y =6

5 0
2 years ago
Read 2 more answers
How to find the height of a 30-60-90 triangle with hypotenuse = 8, and base = 8sqrt.3. Please help find answer fast!
Daniel [21]
For a 30-60-90 triangle
if the shorter leg (oposite 30 degrees) is x then the other leg is x√3 and the hyptonuse is 2x

so
hyptonuse=8
8=2x
4=x

longer leg is 4√3, yep
so shorter leg or height will be 4 units
5 0
2 years ago
On January 1 2017 ,Bonita corporation sighned a 3 year noncancelable lease for several computers.The terms of the lease called f
Nadusha1986 [10]

The present value of the minimum lease payments for Bonita Corporation, which signed a noncancelable lease, is <u>$11,121.35</u>.

<h3>What is the present value of the minimum lease payments?</h3>

The present value of the minimum lease payments is the sum of all of the future lease payments, expressed in present value terms, including the estimated value of the leased asset after the lease period.

The present value of the minimum lease payments can be computed using the PV factor or formula.

It can also be computed using an online finance calculator, as follows:

<h3>Data and Calculations:</h3>

N (# of periods) = 3 years

I/Y (Interest per year) = 11%

PMT (Periodic Payment) =- $4,100

FV (Future Value) = $0

<u>Results</u>:

PV = $11,121.35 ($12,300 - $1,178.65)

Sum of all periodic payments = $12,300 ($4,100 x 3)

Total Interest $1,178.65

Thus, the present value of the minimum lease payments for Bonita Corporation, which signed a noncancelable lease, is <u>$11,121.35</u>.

Learn more about minimum lease payments at brainly.com/question/17164931

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4 0
2 years ago
Hilda draws a card from a deck of cards and it is a seven. The probability that it is the 7 of spades is Select one: O a. 1/3 O
Schach [20]

Answer:b

Step-by-step explanation:

Given

Hilda draws a card from a deck of cards and it is seven.

It is certain that card is 7 so there a 4 cards which can be 7

i.e. 7 of hearts,7 of spades,7 of club,7 of diamond

So probability that it is the 7 of spades is

\frac{1}{4}=0.25

8 0
3 years ago
If B is the midpoint of AC, solve for x, and find the lengths of AB, BC, and AC.
makvit [3.9K]

Answer:

49, 49 , 98

Step-by-step explanation:

AC = AB + BC = 2AB

  • 3x - 31 = 2(x+6)
  • 3x - 31 = 2x + 12
  • 3x - 2x = 12 +31
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AB= BC = x + 6 = 43 + 6 = 49

AC = 2AB = 2* 49 = 98

7 0
3 years ago
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