MATHEMATICS MIDDLE SCHOOL

A company makes glass lawn ornaments with a radius of 9 inches. The glass to make the balls costs the company $0.03 persquare inch. To the nearest cent, how much does the company pay for the glass to create one omament? Use 3.14 for
Recall the formula SA=472
$3.39
$6.78
$30.52
$122.08

Answers

Answer 1
Answer:

Answer: $30.52

Step-by-step explanation:

Hi, to answer this question we have to calculate the surface area of the ornament:

Surface Area of a sphere = 4π r²

Replacing with the values given:

A = 4(3.14) (9)² = 1,017.36in2

Finally, we have to multiply the surface area by the price per square inch of glass.

1,017.36 (0.03)= $30.52

Feel free to ask for more if needed or if you did not understand something.
Answer 2
Answer:

Answer:

$30.52

Step-by-step explanation:

4 x 9^2 x 3.14 x 0.03 = around 30.52

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A triangle has a height of 18 centimeters and a base of 3.5 centimeters. What is the area of the triangle?

Answers

Answer:

31.5 cm^2

Step-by-step explanation:

The formula for the area of a triangle is 1/2 x (b x h)

in the provided question -

b = 3.5 cm

h = 18cm

thus the area of the triangle will be -

1/2 x (3.5 x 18)

= 1/2 x 63

= 31.5 cm^2

Is the number rational or irrational?square root 48
square root 9
square root 39
square root 289

Answers

1. irrational: √48 = 6.92820323028

2. rational: √9 = 3

3. irrational: √39 = 6.2449979984

4. rational: √289 = 14

Answer:

1) Irrational: √48 = 6.92820323028!

2) Rational: √9 = 3!

3) Irrational: √39 = 6.2449979984!

4) Rational: √289 = 14!

Step-by-step explanation:

A cylindrical water tank has a diameter of 36 centimeters and a height of 100 centimeters.The volume is 1290π cubic centimeters. What is the heightvof the water level un the tank?

Answers

d=36cm
r=18cm

volume=1290pi
\pi {r}^(2) h = 1290\pi
18 * 18 * h = 1290
h=1290/ 18×18
h= 1290/324=3.98cm

answer is 3.98cm

HOPE IT HELPS YOU '_'

What's 3x divided by 46

Answers

3x/46

3/46 x

decimal = 0.06x

I hope that's help !

What is 32/36 in it's simplest form?

Answers

The highest common multiple of this numerator and the denominator is:
4.

(32/4)/(36/4) = (8)/(9)

(8)/(9) is the simplest form

at a party there were four large submarine sandwiches, all the same size during the party, 2/3 of the chicken sandwich, 3/4 of the tuna sandwich, 7/12 of the roast beef sandwich and 5/6 of the veggie sandwich were eaten. which sandwich had the least amount left ?

Answers

Answer: The answer is the Veggie Sandwich

Step-by-step explanation:  Given that there are four large submarine Sandwiches in a party and all of them are of the same size.

Some parts of each of them were eaten during the party. We are to find the Sandwich that has the least amount left.

The fractions of the Chicken Sandwich(C), Tuna Sandwich(T), Roast beef Sandwich(R) and the Veggie Sandwich(V) that were eaten during the party are given by

C=(2)/(3),\n\nT=(3)/(4),\n\nR=(7)/(12),\n\nV=(5)/(6).

Therefore, the fractions of the Sandwiches that left will be

C'=1-C=1-(2)/(3)=(1)/(3)=(4)/(12),\n\nT'=1-T=1-(3)/(4)=(1)/(4)=(3)/(12),\n\nR'=1-R=1-(7)/(12)=(5)/(12),\n\nV'=1-V=1-(5)/(6)=(1)/(6)=(2)/(12).

Out of the four fractions, V' is the smallest, so the Veggie Sandwich has the least amount left.

 
Veggi sandwich had the least amount left
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