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Sliva [168]
3 years ago
11

The head of a nail is circular, as shown. The head of this nail has a diameter of 6 millimeters. What is the approximate measure

ment of the area of the head of the nail in square millimeters (mm2)? Use 3.14 to approximate, do not round your answer. Show work

Mathematics
1 answer:
mel-nik [20]3 years ago
6 0

Answer:

28.26 mm2

Step-by-step explanation:

Area = Pi r^2

diameter is 6 so radius is 3

3x3= 9

9 x 3.14 = 28.26 mm2

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What is 25% of 40? Show Work please
goldenfox [79]

25% = 1/4

1/4(40)

Divide 40 by 4 to remove the 1/4

10

25% of 40 is 10.

7 0
3 years ago
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Find two integers whose sum is -20 and product is 99
Brums [2.3K]

Answer:

Step-by-step explanation:

let the integers be x and y

x+y=-20

y=-20-x

xy=99

x(-20-x)=99

-20x-x²=99

x²+20x+99=0

x²+11x+9x+99=0

x(x+11)+9(x+11)=0

(x+11)(x+9)=0

x=-11,-9

when x=-11

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when x=-9

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y=-20+9=-11

so integers  are -11,-9

8 0
2 years ago
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I NEED THIS DONE IN TWO HOURS :,(
Pani-rosa [81]
I hope I’m not too late. Substitute x = 4y + 5y = 2
y = 2. Substitute this value into the first equation: x + -4 x 2 = -8. So the answer is (-8,2).
3 0
2 years ago
PLEASE HELP<br> log (5x – 10) = log (6 – 5x)
Bond [772]

Answer: look at the picture

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7 0
2 years ago
Please help me!<br> Hint: the number is negative
wel

Answer:

-36 goes into the box

Step-by-step explanation:

Let the number be x,  then


(m^x)^{\frac{1}{3}}=m^{-12}


We now use the following property of exponents to simplify the left hand side of the equation.

(a^m)^n=a^{mn}

This implies that;

m^{x\times \frac{1}{3}}=m^{-12}


\Rightarrow m^{\frac{x}{3}}=m^{-12}


Since the bases are the same, we equate the exponents to get;


{\frac{x}{3}=-12


We now multiply both sides by 3 to get;


\frac{x}{3}\times 3=-12\times 3


\Rightarrow x =-36


Therefore the number that goes into the box is -36



6 0
3 years ago
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