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3 years ago

12. Antara yang berikut, yang manakah terlibat dalam sistem mekanikal pintu gelangsar

Mathematics

1 answer:

Dima020 [189]3 years ago

3 0

B ..

............. bbbbbb

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ABCD rhombus, AC:BD = 4:3 Perimeter ABCD = 20 cm Find: Area of ABCD

AlladinOne [14]

Given that the perimeter of rhombus ABCD is 20 cm, the length of the sides will be:
length=20/4=5 cm
the ratio of the diagonals is 4:3, hence suppose the common factor on the diagonals is x such that:
AC=4x and BD=3x
using Pythagorean theorem, the length of one side of the rhombus will be:
c^2=a^2+b^2
substituting our values we get:
5²=(2x)²+(1.5x)²
25=4x²+2.25x²
25=6.25x²
x²=4
x=2
hence the length of the diagonals will be:
AC=4x=4×2=8 cm
BD=3x=3×2=6 cm
Hence the area of the rhombus wll be:
Area=1/2(AC×BD)
=1/2×8×6
=24 cm²

6 0

3 years ago

Nolan just drove at a constant rate for 5 hours. He is now 340 miles from where he started. At what rate was he driving? Nolan h

Sauron [17]

Answer:

68 miles

3 hours

Step-by-step explanation:

340/5=68

204/68=3

7 0

3 years ago

Abiodun and taiwo share 735 naira between them so that abiodun get 95naira more than taiwo find how much money each gets

DerKrebs [107]

Answer:

Abiodun gets - <u>415 naira</u>

Taiwo gets -<u> 320 naira</u>

Step-by-step explanation:

Let us consider x and y as Abiodun and Taiwo,

Therefore , acccording to the question , equation formed will be -

$x+y=735$ naira ------ 1

and

$x=y+95$

$x-y=95$ ------2

From equation 1 and 2, we get

$2x=830$

$x=\frac{830}{2}$

$x=415$ naira (that is Abiodun share)

now , Calculating Taiwo share from equation 1

$x+y=735\\415+y=735$

$y=735-415$

y = 320 naira (that is Taiwo share )

Therefore , Share of Abiodun = 415 naira

Share of Taiwo = 320 naira

5 0

3 years ago

An iceberg weighs 450,000 lb. If it loses 0.2% of its weight during the day, what is its new weight at the end of the day?

JulsSmile [24]

Answer: The weight of the iceberg at the end of the day will be 449,100 lbs.

Step-by-step explanation: The question is solved by first calculating what the loss of weight is during the day. The question indicates that it will lose .2%. In order to calculate the loss you need to multiply 450,000 x .002, which equals 900. Next, we subtract the weight loss from the original weight to determine the end of day weight. 450,000 - 900 = 449,100 lbs.

6 0

3 years ago

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How do i factor 54a + 24b

levacccp [35]

Well, to factor out we have to find the gratest common factor of 54 and 24 which is 6. then divide both numbers by that number

54/6=9 24/6=4

6(9a+4b) is your final answer

6 0

3 years ago

Read 2 more answers