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Veseljchak [2.6K]
3 years ago
6

Please help me i will really appreciate it thank you

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
3 0

Answer:

BD= 24

3/5 of 40= 40÷5×3

I'm not too sure about the last question...sorry

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X^2-4x-5x=0<br><img src="https://tex.z-dn.net/?f=x%20%7B2%7D%20%20-%204x%20-%205x%20%3D%200" id="TexFormula1" title="x {2} - 4x
Bogdan [553]

Answer:

x = 9 or x = 0

Step-by-step explanation:

Solve for x over the real numbers:

x^2 - 4 x - 5 x = 0

x^2 - 4 x - 5 x = x^2 - 9 x:

x^2 - 9 x = 0

Factor x from the left hand side:

x (x - 9) = 0

Split into two equations:

x - 9 = 0 or x = 0

Add 9 to both sides:

Answer: x = 9 or x = 0

7 0
3 years ago
Read 2 more answers
The perimeter of a square is 3 1/3 mi, and its side is 5/6 mi. Find its area
pychu [463]
Area = side * side
5/6 * 5/6
= 25/36
6 0
4 years ago
On a scale drawing, the scale is 1 cm = 4 ft. Find the length of a desk that measures 1 1/4 cm on the drawing
Karolina [17]
The answer is 5 feet.
1/4 = 1.25/x
x = 4•1.25
x = 5
4 0
3 years ago
The width of a rectangle is 3 inches less than its length. The area of the rectangle is 340 square inches. What are the length a
sukhopar [10]

Answer:

The length and width of the rectangle are 20 inches and 17 inches .

Step-by-step explanation:

Formula

Area of a rectangle = Length × Breadth

As given

The width of a rectangle is 3 inches less than its length. The area of the rectangle is 340 square inches.

Let us assume that the length is denoted by l.

Thus

Breadth = l - 3

Put in the above formula

340 = l × (l - 3)

340 = l² - 3l

l² - 3l - 340 = 0

l² - 20l + 17l - 340 = 0

l(l-20) + 17 (l-20) = 0

(l - 20) ( l+ 17) = 0

l = 20

l = -17 (This valueof length is neglected because length cannot be negative.)

As l = 20 inches

Breadth = 20 - 3

             = 17 inches

Therefore the length and width of the rectangle are 20 inches and 17 inches .

4 0
3 years ago
Read 2 more answers
Are y'all mad or happy about the time change in some places
KATRIN_1 [288]

Answer:

Not happy with it! :)

Step-by-step explanation:

I dont get the point. its a pain to change the time on the clock and i hate getting up early!! Not a early lol

Have an amazing day!!

PLEASE RATE!

6 0
3 years ago
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