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skelet666 [1.2K]

3 years ago

5

Please Help ASAP!!! Would you be able to prove this is a right triangle or would it just be a scalene triangle?

2 answers:

daser333 [38]3 years ago

8 0

Triange ADB is an isosceles triangle being bisected, so Triangle ADE is a right triangle

Dvinal [7]3 years ago

3 0

It is a right Right Triangle because, they have two equal sides.

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If the total area of a picture measuring 10 inches by 12 inches plus a matting of uniform width surrounding the picture is 224 s

ELEN [110]

Let
x-----------> <span>uniform width surrounding the picture

we know that
(10+2x)*(12+2x)=224-----> 120+20x+24x+4x</span>²=224
4x²+44x+120-224=0
4x²+44x-104=0

using a graph tool-----> to resolve the second order equation
see the attached figure

the solution is
x=2 in

the answer is
2 inches

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3 years ago

Need help ASAP! Anyone know?

VARVARA [1.3K]

Answer: x= 29°

Step-by-step explanation: Add angles D and C. Subtract from 180.

58/2 = 29

6 0

3 years ago

Write an algebraic expression 3 more than twice a number

kati45 [8]

Answer:

2x+3

Step-by-step explanation:

Let x be the number

twice a number

2x

3 more than

2x+3

5 0

3 years ago

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wel

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6

Step-by-step explanation:

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7 0

2 years ago

Read 2 more answers

Becky has a board that is 2 and 3/4 feet long. She needs to cut the board into 11 pieces of equal length. How long should each p

zzz [600]

Answer:

1/4 feet long should each pieces be.

Step-by-step explanation:

Unit rate defined as the rates are expressed as a quantity of 1 such as 3 miles per second or 4 km per hour

As per the statement: Becky has a board that is 2 and 3/4 feet long.

⇒ Length of a board = $2\frac{3}{4} =\frac{11}{4}$ feet

Also, she need to cut the board into 11 pieces.

by unit rate definition:

$\text{Unit rate per pieces} = \frac{\frac{11}{4} }{11}$

or

$\text{Unit rate per pieces} = \frac{11}{4} \times \frac{1}{11} = \frac{1}{4}$

Therefore, 1/4 feet long should each pieces be.

4 0

3 years ago