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Aleksandr-060686 [28]
3 years ago
12

A rectangle that measures 7 feet by 5 feet.

Mathematics
2 answers:
storchak [24]3 years ago
8 0
Answer: 24 feet.

Explanation:
The formula of perimeter of a rectangle is b + b+ H + H= here they gave us 7 and 5 so we just multiply 7 by 2 and multiply 5 by 2 then add the digits together now we get 24
34kurt3 years ago
7 0

Answer:

24 ft

Step-by-step explanation:

To find the perimeter of a rectangle we use the formula

P = 2(l+w)  where l is the length and w is the width

P = 2 ( 7+5)

   = 2(12)

  = 24 ft

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5 0
3 years ago
What is the resistance of a 1.00X10^2 -Ω , a 2.50-kΩ , and a 4.00-k Ω resistor connected in parallel?
Andreas93 [3]

Answer:

Therefore, the total Resistance:  R = 93.9 Ω

Step-by-step explanation:

Given

R₁ = 1 × 10²

R₂ = 2.5 kΩ = 2.5 × 10³ Ω

R₃ = 4  kΩ = 4 × 10³ Ω

Given that the given resisters are connected parallel, so using the formula to calculate the total Resistance R:

\frac{1}{R}\:=\:\frac{1}{R_1}\:+\:\frac{1}{R_2}+\frac{1}{R_3}

susbtituting R₁ = 1 × 10², R₂ = 2.5 × 10³ Ω, and R₃ = 4 × 10³ Ω

\frac{1}{R}=\frac{1}{1\times \:10^2}+\frac{1}{2.5\times \:10^3}+\frac{1}{4\times \:10^3}

Multiply by LCM of R, 100, 2500, and 4000:   20000 R

\frac{1}{R}\cdot \:20000R=\frac{1}{1\cdot \:10^2}\cdot \:20000R+\frac{1}{2.5\cdot \:10^3}\cdot \:20000R+\frac{1}{4\cdot \:10^3}\cdot \:20000R

simplify

20000=213R

Switch sides

213R=20000

Divide both sides by 213

\frac{213R}{213}=\frac{20000}{213}

Simplify

R=\frac{20000}{213}

R = 93.9 Ω

Therefore, the total Resistance:  R = 93.9 Ω

4 0
3 years ago
Answer choices (Choose all that apply)
Tresset [83]

Answer:

Yes, A, B, C, is correct the answer to question

5 0
3 years ago
Read 2 more answers
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