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rjkz [21]
4 years ago
7

What kind of problem is this

Mathematics
2 answers:
antiseptic1488 [7]4 years ago
8 0

(x-5y)^2=x^2-2\cdot x\cdot5y+(5y)^2=x^2-10y+25y^2

Anvisha [2.4K]4 years ago
6 0

Answer:

24

Step-by-step explanation:

lets say x is one and y is 1.  5 times 1 is five and to the power of 2 thats 25 and minus 1 equals 24

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1998 and 25years later what year will it be
SOVA2 [1]
25 years after 1998 would be the year 2023
7 0
3 years ago
First and Last Name 1. A waste oil tank is five feet wide by twenty feet long. The empty tank on your truck holds 5,000 gallons.
VikaD [51]

Answer:

b)668

Step-by-step explanation:

volume of the truck: 5000/7.48=668.45cu/ft

let d= the depth of the oil in the truck

5 *20*d=66.8.45

100d=66.8.45

d=668.45

so it would be b :)

5 0
3 years ago
The length of a rectangle is 10 yd less than three times the width, and the area of the rectangle is 77 yd^2. Find the dimension
oksano4ka [1.4K]

Answer:

width = 7, length = 11

Step-by-step explanation:

area = 77

length = 3w - 10

width = w

w(3w - 10) = 77

3w^2 - 10w - 77 = 0

(3w + 11)(w - 7) = 0

we rule out 3w + 11 = 0 because w would be negative

so we use w - 7 = 0

so the width = 7

length = 3w - 10

length = 21 - 10

length = 11

8 0
3 years ago
What is the perimeter of a square with a side length of 3x?
masya89 [10]

Answer: 12

Step-by-step explanation: to find perimeter we have to add all the sides of the shape so, for a square you can just simply multiply your given side 3 by 4 because there is 4 sides of a square and this equals to 12.

5 0
3 years ago
Type to justify why the two larger triangles are congruent
dexar [7]

Answer:

HL

Step-by-step explanation:

We are dealing with triangle DAB and CBA.

Angles DAB and CBA are right angles making the triangles right triangles.

Side AB is congruent to side BA. That is a leg of each of the two triangles.

Side DB is congruent to side CA. Tat is a leg of each triangle.

The triangles are congruent by HL.

4 0
3 years ago
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