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2 years ago

Someone, please help me with this asap! And no links or weird answers, please!

Mathematics

2 answers:

Oxana [17]2 years ago

5 0

Use the rectangle prisms and symbols

kupik [55]2 years ago

3 0

Answer:

$b = 4$

Step-by-step explanation:

subtract by 5 on both sides. ur left with

${b}^{2} = 16$

square root b and 16. the square root cancels out b squared. find the square root of 16. the square root of 16 is 4

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Find x, the unknown side. A) 4.6 C) 4.8 B) 5.4 D)3.5

MrMuchimi

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2 years ago

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Determine which situation could be represented by the system of linear equations given below.

Bezzdna [24]

Answer: Jane sells beaded bracelets for $2 each and beaded necklaces for $4 each. She sold 50 pieces of jewelry at the craft fair last weekend and made $160.

Step-by-step explanation: I just answer this and it's correct.

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2 years ago

Danielle earns a 7.75% commission on everything she sells at the electronics store where she works. She also earns a base salary

kaheart [24]

Answer:

ok so this can be represented as

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2 years ago

Select the correct answer from each drop-down menu. Wayne and Winston collect old coins. Winston has 8 fewer coins than Wayne ha

maria [59]

Answer:

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2 years ago

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Find

Sedaia [141]

Answer:

The amount of steel used = 94.38 $m^{2}$

Step-by-step explanation:

Height of the tank = 4.5 m.

Diameter of the tank = 4.2 m.

But,

radius = $\frac{diameter}{2}$

= $\frac{4.2}{2}$

radius = 2.1 m

Total surface area of a cylinder = 2 $\pi$ rh + 2 $\pi$ $r^{2}$

= 2 $\pi$ r(r + h)

= 2 x $\frac{22}{7}$ x 2.1 (2.1 + 4.5)

= 44 x 0.3 (6.6)

= 87.12

Total surface area of a cylinder = 87.12 $m^{2}$

Since $\frac{1}{12}$ of the steel was wasted, then;

$\frac{1}{12}$ x 87.12 = 7.26 $m^{2}$

Actual area of steel sheet used = 87.12 + 7.26

= 94.38 $m^{2}$

Thus, 94.38 $m^{2}$ of steel was used in making the tank.

4 0

2 years ago