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Natasha2012 [34]
2 years ago
5

The square root of the quantity 4 x minus 3 end quantity equals 5.

Mathematics
1 answer:
zavuch27 [327]2 years ago
3 0

Answer:

The statement is false.

Step-by-step explanation:

Given,

\sqrt{4  \times  - 3}  = 5

To Prove

Soln:

  • \sqrt{4  \times  - 3}

=2i \sqrt{3}

=>2i \sqrt{3} ≠5

Hence, 2i√3 is not equal (≠) to 5.

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By eating 1 egg, 1 cupcake, and 1 slice of pizza, a child consumes 300 mg of cholesterol. If the child eats 3 cupcakes and 4 sli
photoshop1234 [79]

Answer:

cholesterol in egg= 273 mg

cholesterol in cupcake = 18 mg

cholesterol in slice of pizza = 9 mg

Step-by-step explanation:

Given data:

1 egg , 1 cupcake , 1 slice of pizza  = 300mg

3 cupcakes , 4 slices of pizza = 90mg

2 eggs , 1 cupcake = 564mg

Let egg be x , let cupcake be y and let pizza be y

x + y + z = 300 (equation 1)

0x + 3y + 4z = 90 (equation 2)

2x + y + 0z = 564 (equation 3)

Using equation 1 and equation 2

x + y + z = 300 (Multiply equation by 3)

0x + 3y + 4z = 90

3x + 3y +3z =900

0x +3y +4z = 90  (Subtracting the equations)

3x - z = 810  (equation 4)

Using equation 2 and equation 3

0x + 3y + 4z = 90

2x + y + 0z = 564 (Multiply equation by 3)

0x + 3y + 4z = 90

6x +3y + 0z = 1692 (Subtracting the equations)

-6x +4z =-1602  (equation 5)

Solving equation 4 and equation 5

3x - z = 810  therefore z =3x -810

Substituting z into equation 5

-6x +4(3x - 810) =-1602  

-6x + 12x - 3240 = -1602

6x = -1602+3240

6x = 1638

x = 273

Substituting x into z = 3x - 810

z = 3(273) - 810

z = 819-810

z = 9

Using equation 1 to find y

x + y + z = 300

273 + y + 9 = 300

282 + y = 300

y = 300-282

y = 18

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3 years ago
Determine the general solution of cos2X -7cosX -3=0​
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Answer:

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Step-by-step explanation:

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3 years ago
On a survey, 7 students reported how many minutes it takes them to travel to school. Here are their responses.
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To find the average, add them all up. 13 + 7 + 12 + 9 + 8 + 8 + 16 = 73
Then divide by how many numbers there are, 73 divided by 7 = 10.4285714286

10.4285714286 rounded to the nearest tenth = 10.4
Hope this helps :D
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3 years ago
Use properties to find the sum of product 8×51gb
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8(51) = 8(50 + 1) = 8(50) + 8(1) = 400 + 8 = 408

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As far as I understand A)

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