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3 years ago

The perimeter of a rectangle is 34 units. It’s width is 6.5 units

Mathematics

2 answers:

rjkz [21]3 years ago

8 0

The length on the side is 10.5

Papessa [141]3 years ago

4 0

Answer:

The length for on side is 10.5.

Step-by-step explanation:

6.5 + 6.5 = 13

34 - 13 = 21

21 divided by 2 is 10.5

Length 10.5 + 10.5 + 6.5 + 6.5 = 34

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Find the measure of the the sides of DEF then classify it by it sides. <br> D(8,-6) E(-1,-3) F(-2,5)

Mama L [17]

Answer:

Part a) The measure of the sides of triangle DEF are

$d_D_E=\sqrt{90}\ units$

$d_E_F=\sqrt{65}\ units$

$d_D_F=\sqrt{221}\ units$

Part b) Is a scalene triangle

Step-by-step explanation:

we know that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have the coordinates

D(8,-6) E(-1,-3) F(-2,5)

step 1

Find the length side DE

D(8,-6) E(-1,-3)

substitute in the formula

$d=\sqrt{(-3+6)^{2}+(-1-8)^{2}}$

$d=\sqrt{(3)^{2}+(9)^{2}}$

$d_D_E=\sqrt{90}\ units$

step 2

Find the length side EF

E(-1,-3) F(-2,5)

substitute in the formula

$d=\sqrt{(5+3)^{2}+(-2+1)^{2}}$

$d=\sqrt{(8)^{2}+(-1)^{2}}$

$d_E_F=\sqrt{65}\ units$

step 3

Find the length side DF

D(8,-6) F(-2,5)

substitute in the formula

$d=\sqrt{(5+6)^{2}+(-2-8)^{2}}$

$d=\sqrt{(11)^{2}+(-10)^{2}}$

$d_D_F=\sqrt{221}\ units$

step 4

Classify the triangle by the measure of its sides

we have

$d_D_E=\sqrt{90}\ units$

$d_E_F=\sqrt{65}\ units$

$d_D_F=\sqrt{221}\ units$

Is a scalene triangle, because is a triangle in which all three sides have different lengths.

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3 years ago

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Daniel [21]

Answer:

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Step-by-step explanation:

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2 years ago

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erastovalidia [21]

The following function would be a or d

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3 years ago

On the day of his 18th birthday harry decided to start saving up money regularly starting on that day he could save £30 on the s

Arada [10]

Answer:

£15120

Step-by-step explanation:

60-18= 42 years

42×12= 504 months

504×30=£15120

6 0

2 years ago

1. Yousaf deposits $5000 in a savings account at his local bank. The account pays 5.5 % interest compounded annually. At the end

irina [24]

Answer:

I think its $6894.21

Step-by-step explanation:

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A= 5000(1+ 0.055/1)^1(6)

A= 6894.21403

A= $6894.21

4 0

3 years ago