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3 years ago

Which two values of n make this equation true? |n|= 3

Mathematics

1 answer:

strojnjashka [21]3 years ago

6 0

Answer:

n= 3 and n = -3

Step-by-step explanation:

In general

|n| = a <=> n = a or n= -a (for n and a are real numbers)

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A 55m and 35m broad park is surrounded by a 2.5m wide path.

daser333 [38]

Step-by-step explanation:

☄ $\underline {\underline{ \text{Given}}} :$

Length of a park ( l ) = 55 m
Breadth of a park ( b ) = 35 m
Width running outside the park ( d ) = 2.5 m
Rate of paving the path with stones = Rs 120 per sq.metre

☄ $\underline{ \underline{ \text{To \: find}}}:$

Area of the park
Cosy of paving the path with stones at Rs 130 per sq.metre

☄ $\underline{ \underline{ \text{Solution}}} :$

Part 1 : $\boxed{\text{Area \:of \:a \:path \: running \:outside = 2d(l + b + 2d)}}$

plug the known values and simplify :

⟹ $\sf{2 \times 2.5(55 + 35 + 2 \times 2.5)}$

⟹ $\sf{5 \times 95}$

⟹ $\sf{475 \: {m}^{2} }$

Part 2 : $\boxed{ \sf{Total \: cost = Area \: of \: paths \: \times Rate}}$

⟹ $\sf{475 \times 120}$

⟹ $\sf{Rs \: 57000}$

$\purple{ \boxed{ \boxed{ \sf{ \tt{⟿ \: Our \: final \: answer : (i) = 475 \: {m}^{2} \: and \: (ii ) = Rs \: 57000}}}}}$

Hope I helped ! ♡

Have a wonderful day /night ツ

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3 years ago

Anyone knows the answer

vesna_86 [32]

Answer:

it might be 390

Step-by-step explanation:

hope this helps

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3 years ago

A square has sides that are 80 ft long. Which equations can be used to calculate d the length of a diagonal of the square in fee

LenKa [72]

Notice the picture below

just use the pythagorean theorem to ge the diagonal

$\bf c^2=a^2+b^2\implies c=\sqrt{a^2+b^2}$

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4 years ago

Given the rectangle ABCD, AB has a slope of 2/3, what is the slope of BC?

erastova [34]

Answer:

slope = - $\frac{3}{2}$

Step-by-step explanation:

note that BC is perpendicular to AB, hence the slope of BC is the negative reciprocal of the slope of AB

$m_{BC}$ = - $\frac{1}{2/3}$ = - $\frac{3}{2}$

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4 years ago

In a fruit cocktail, for every 72 ml of orange juice you need 56 ml of apple juice and 120 ml of coconut milk. What is the ratio

olasank [31]

Answer:

7 : 15 : 9

Step-by-step explanation:

The GCF is 8:

56/8 = 7

120/8 = 15

72/8 = 9

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3 years ago

Read 2 more answers

Which two values of n make this equation true? |n|= 3​

Which two values of n make this equation true? |n|= 3