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Leviafan [203]
2 years ago
5

Ariel has a plastic ice cream cone in her food playset. The ice cream cone is a half-sphere sitting on top of a cone. What is th

e
approximate volume of the toy ice cream cone? Use 3.14 for x.
Mathematics
1 answer:
dsp732 years ago
4 0

52 Step-by-step explanation:

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Leah deposited $50,000 in the bank. Three years later, she borrowed $40,000 for a new truck. From this description, which is the
NISA [10]

Answer:  B. (Leah did not have to provide collateral.)

6 0
3 years ago
Solve the simultaneous equation 2p - 3q = 4, 3p + 2q = 9. <br>b. if 223= 87 find x<br>​
wolverine [178]

Answer:

Step-by-step explanation:

Given the simultaneous equation 2p - 3q = 4 and 3p + 2q = 9, to get the value of p and q we will use elimination method.

2p - 3q = 4 ...................... 1 * 3

3p + 2q = 9 ..................... 2 * 2

Multiplying equation 1 by 3 and 3 by 2:

6p - 9q = 12

6p + 4q = 18

Subtracting both equation

-9q-4q = 12-18

-13q = -6

q = -6/-13

q = 6/13

Substituting q = 6/13 into equation 2

2p - 3(6/13) = 4

2p - 18/13 = 4

2p = 4+18/13

2p = (52+18)/13

2p = 70/13

p = 70/26

p = 35/13

<em>Hence p = 35/13 and q = 6/13</em>

<em></em>

<em>b) </em>If if 223ₓ = 87 find x

Using the number base system and converting 223ₓ  to base 2 will give us;

223ₓ = 2*x² + 2*x¹ + 3*x⁰

223ₓ  = 2x²+2x+3

​

Substituting back into the equation, 2x²+2x+3 = 87

2x²+2x+3-87 = 0

2x²+2x-84 = 0

x²+x-42 = 0

On factorizing:

(x²+6x)-(7x-42) = 0

x(x+6)-7(x+6) = 0

(x+6)(x-7) = 0

x+6 = 0 and x-7 = 0

x = -6 and 7

<em>Hence the value of x is 7 (neglecting the negative value)</em>

5 0
3 years ago
A cube has a surface area of 486 square meters. What is the volume of the cube.
Oksana_A [137]
V= s^3  
a=486/6=81
s=sqrt(81)=9
v=9^3=729
the volume of the cube is 729cm^3
8 0
3 years ago
Read 2 more answers
What is the simplified form of (5x^3 + 2)(5x^3 -2)
lapo4ka [179]

Simplify the expression.

25x6−4

plz mark me as brainliest :)

8 0
3 years ago
Reeeeeeeeeeeeeeeeeeee
Juliette [100K]

start by writing the multiplication in this form

start multiplying from right to left.

3\cdot0=0

write the first number down

continue by multiplying the next number from right to left

8\cdot3=24

write the number down, since there are no more numbers to multiply for write the wole number

this means that

80\cdot3=240

5 0
1 year ago
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