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3 years ago

Please help I'm struggling with this.

Mathematics

1 answer:

Mademuasel [1]3 years ago

3 0

Answer:

thats thiccc

Step-by-step explanation:

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Help please it's due today. Also please leave an explanation too ty!

Ivan

Answer:

B. 6π $\sqrt{2}$

Step-by-step explanation:

If you look at the help image I attached, what we are given is in RED and what we solve is in BLUE.

First, draw a diagonal in the square. Its length is the diameter, but we don't know the exact value. Since two right triangles have been created, we use Pythagorean Therom to solve for the hypotenuse/diameter:

$a^2+b^2=c^2\\6^2+6^2=c^2$

$\sqrt{36+36} =c$

$6\sqrt{2}=c$

If diameter = $6\sqrt{2}$ , then radius is $\frac{6\sqrt{2}}{2}$ or $3\sqrt{2}$

Circumference = 2πr

2π ( $3\sqrt{2}$ )

6π $\sqrt{2}$

I hope this helps!

8 0

2 years ago

Which of the following describes a correct method for solving the equation: -7/2n + 5= -16 A. Add 5 to both sides, then devide b

solniwko [45]

Answer:

If the use the method ''Add -5 to both sides, then multiply both sides by -2/7'', we can get the value n = 6.

Thus, the correct option is 'C'.

Step-by-step explanation:

Given the equation

$-\frac{7}{2}n+5=-16$

Let me solve this using the correct method

$-\frac{7}{2}n+5=-16$

Add -5 to both sides

$-\frac{7}{2}n+5+\left(-5\right)=-16+\left(-5\right)$

simplify

$-\frac{7}{2}n=-21$

Multiply both sides by -2/7

$-\frac{7}{2}n\times -\frac{2}{7}=-21\times -\frac{2}{7}$

simplify

$n=6$

Therefore, if the use the method ''Add -5 to both sides, then multiply both sides by -2/7'', we can get the value n = 6.

Thus, the correct option is 'C'.

4 0

3 years ago

Colleen says she is thinking of a 4 digit number im which all the digits are the same. The value of the digit in the hundreds pl

uysha [10]

Well, the number should be 2,222 since she wants the hundreds place to be a 2, being worth 200. Since she wanted all the digits to have the same number, it would be 2,222 for your final answer.

Hope this helped!

Nate

7 0

4 years ago

A man earns $112 interest in one year on an investment of $1,400. What was his rate of interest? 10% 12% 8%

GaryK [48]

Answer:

it issssssss

Step-by-step explanation:

6 0

3 years ago

If the cost. C, for manufacturing x units of a certain product is given by C= x² + 10x +30, find the number of units manufacture

ipn [44]

Answer:

100 units

Step-by-step explanation:

We want to find x when ...

C = 11030

x² +10x +30 = 11030 . . . . fill in for C

x² +10x = 11000 . . . . . . . . subtract 30

x² +10x +25 = 11025 . . . . add 25 to complete the square

(x +5)² = 105² . . . . . write as squares

x +5 = ±105 . . . . . . . take the square root

x = -5 ±105 = {-110, 100}

The number of units manufactured at a cost of $11,030 is 100.

7 0

4 years ago

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Please help I'm struggling with this.​

Please help I'm struggling with this.