Please help me:( I've been stuck on this for so long

Mathematics

2 answers:

Contact [7]3 years ago

6 0

Answer:\

S=4

Step-by-step explanation:

Hope this helped!!!!!

Sladkaya [172]3 years ago

4 0

Answer:

s=4

Step-by-step explanation:

3/4 s - 5/4 = s/8 +5/4

Multiply the equation by 8 to get rid of the fractions

8*(3/4 s - 5/4) =8( s/8 +5/4)

6s - 10 = s +10

Subtract s from each side

6s -s -10 s-s +10

5s -10 = 10

Add 10 to each side

5s-10+10 =10+10

5s= 20

Divide each side by 5

5s/5 = 20/5

s =4

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Norma-Jean [14]

Step-by-step explanation:

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7 0

3 years ago

The diagonals of a rhombus are 14 and 48cm. Find the length of a side of the rhombus.

FromTheMoon [43]

Step-by-step explanation:

Let ABCD be a rhombus. So, AC (AC = 14 cm) and BD (BD=48 cm) will be its diagonals. Let us assume that diagonals are intersecting at point O.

Since, diagonals of a rhombus are perpendicular bisector.

$\because \: OA = \frac{1}{2} \times AC \\ \\ \therefore \: OA = \frac{1}{2} \times 14 \\ \\ \huge \red{ \boxed{\therefore \: OA = 7 \: cm}} \\ \\ \because \: OB = \frac{1}{2} \times BD \\ \\ \therefore \: OB = \frac{1}{2} \times 48 \\ \\ \huge \red{ \boxed{\therefore \: OB = 24 \: cm}} \\ \\ In \: \triangle OAB, \: \: \angle AOB=90° \\ \therefore \: by \: Pythagoras \: Theorem \\ AB= \sqrt{OA^2 +OB^2 } \\ = \sqrt{7^2 +24^2 } \\ = \sqrt{49+576 } \\ = \sqrt{625 } \\ \huge \orange{ \boxed{\ \therefore \:AB= 25 \: cm.}}$