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Y_Kistochka [10]
3 years ago
10

2. An apple has a diameter of 8 cm. An orange has a diameter of 11 cm. Determine how many times greater the volume of the orange

is compared to that of the apple. Round to the nearest hundredth (treat both fruits as spheres)
Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
6 0

Answer:

Volume of a sphere = 4πr³

Volume of Orange = 4/3×22/7×4³=268.1904, Volume of Apple = 4/3× 22/7×(11/2)³=697.1904 Now, Volume of Orange - Volume of Apple, 697.1904-268.1904 = 429.0000,. Therefore, the answer is 429.00

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Factor the following trinomial. (Hint: Solve the equations first.)<br><br> x²-2x-2
Alex_Xolod [135]

Answer:

(x-(1+\sqrt{3}))(x-(1-\sqrt{3}))  

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2} -2x-2=0  

so

a=1\\b=-2\\c=-2

substitute in the formula

x=\frac{-(-2)(+/-)\sqrt{-2^{2}-4(1)(-2)}} {2(1)}

x=\frac{2(+/-)\sqrt{12}} {2}

x=\frac{2(+/-)2\sqrt{3}} {2}

x_1=\frac{2(+)2\sqrt{3}} {2}=1+\sqrt{3}

x_2=\frac{2(-)2\sqrt{3}} {2}=1-\sqrt{3}

therefore

x^{2} -2x-2=(x-(1+\sqrt{3}))(x-(1-\sqrt{3}))  

5 0
3 years ago
An equation is shown below: 6(2x - 11) 15 = 21 Write the steps you will use to solve the equation and explain each step.
kolbaska11 [484]

Answer:

x=6

Step-by-step explanation:

6(2x -11) 15 =21

6 × 2x = 12x

6 × -11 = -66

12x -66 + 15 = 21

-66 + 15 = -51

12x -51 = 21

-51 + 51 = 0

21 + 51 = 72

12x = 72

12x ÷ 2 = 0

72 ÷ 12 = 6

x = 6

3 0
3 years ago
Becky took a quiz in science today. She answered 16 out of 25 correct. What is her score?
Slav-nsk [51]
If you want to know her percentage, we do:
16 ÷ 25 = 0.64
0.64 × 100 = 64%
Her score is 64%
3 0
4 years ago
Read 2 more answers
Which number can not be used to write related number sentences? explain. 5 7 9 14
Veseljchak [2.6K]
The number 7 cannot be used to write related number sentences because it wouldn't fit into the equation & make it true. 
9 + 5 = 14
5 + 9 = 14
14 - 5 = 9
14 - 9 =5
Nowhere in any of these equations can the #7 go in, & make these number sentences true. 
Hope this helps & makes sense ! (:
4 0
3 years ago
You decide finance a $12,000 car at 3% compounded monthly for 4 years. What will your monthly payments be? How much interest wil
dexar [7]

Answer:

Step-by-step explanation:

The cost of the car is $12,000

We would apply the periodic interest rate formula which is expressed as

P = a/[{(1+r)^n]-1}/{r(1+r)^n}]

Where

P represents the monthly payments.

a represents the cost of the car

r represents the interest rate

n represents number of monthly payments. Therefore

a = 12000

r = 3%/12 = 0.03/12 = 0.0025

n = 12 × 4 = 48

Therefore,

P = 12000/[{(1+0.0025)^48]-1}/{0.0025(1+0.0025)^48}]

12000/[{(1.0025)^48]-1}/{0.0025(1.0025)^48}]

P = 12000/{1.127 -1}/[0.0025(1.127)]

P = 12000/(0.127/0.0028175)

P = 12000/45.075

P = $266.22

The monthly payment is $266.22

The total amount that would be paid over the life of the loan is

266.22 × 48 = $12778.56

The amount of interest paid is

12778.56 - 12000 = $778.56

3 0
3 years ago
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