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Sergio039 [100]
4 years ago
15

Jamal works part-time earning $8,000 per year. He reduces his work hours by half so that he can go to school. Jamal completes hi

s degree after 3 semesters (1.5 years) at a cost of $1,400 per semester in tuition and $500 per semester in books. What was Jamal?s investment in getting his degree?. a.. $4,700. b.. $5,700. c.. $11,700. d.. $17,700
Mathematics
2 answers:
Archy [21]4 years ago
8 0
The answer to the question above is letter A. Jamal works part-time earning $8,000 per year and he reduces his work hours by half. Jamal completes his degree after 3 semesters at a cost of $1,400 per semester in his tuition and $500 per semester in books. Jamal's investment is $4,700 in getting his degree.
olganol [36]4 years ago
4 0

Answer:

The answer is A just took he test.

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Write the equation of the sphere in standard form. x2 + y2 + z2 + 8x − 6y + 4z + 20 = 0
Nuetrik [128]

Answer:

(x+4)^2 + (y-3)^2 + (z+2)^2 - 3^2 = 0


Step-by-step explanation:

You have to find a, b, c, r so that the polynomial expands to match the given equation.

(x-a)^2 + (y-b)^2 + (z-c)^2 - r^2 =\\x^2-2ax+a^2+\\y^2-2by+b^2+\\z^2-2cz+c^2-r^2 =\\ x^2 + y^2 + z^2 + 8x - 6y + 4z + 20

(a^2+b^2+c^2-r^2-20)+\\x(-8-2a)+y(6-2b)+z(-4-2c)=0

-8-2a=0, 6-2b=0, -4-2c=0\\a=-4, b=3, c=-2

(-4)^2+3^2+(-2)^2-r^2-20 = 0

16+9+4-20=r^2

r^2=9

r=3

(x+4)^2 + (y-3)^2 + (z+2)^2 - 3^2 = 0



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4 years ago
I need help I am so smart totally.
Contact [7]

Answer:

Step-by-step explanation:

3 0
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18.79+2.11+(-1.92)+17.28
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Step-by-step explanation:

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3 years ago
A right rectangular pyramid has base dimensions of 23.2 by 17.0 and a volume of 1552.4. What is the pyramids height
Scorpion4ik [409]

Answer:

The height of the pyramid is <u>11.81</u>.

Step-by-step explanation:

Given:

A right rectangular pyramid has base dimensions of 23.2 by 17.0 and a volume of 1552.4.

Now, to find the pyramids height.

Let the height be h.

Volume = 1552.4.

And the dimensions are:

Length (l) = 23.2.

Width (w) = 17.0.

Now, to get the height we put formula:

Volume =\frac{l\times w\times h}{3}

1552.4=\frac{23.2\times 17.0\times h}{3}

1552.4=\frac{394.4h}{3}

<em>Multiplying both sides by 3 we get:</em>

4657.2=394.4h

<em>Dividing both sides by 394.4 we get:</em>

11.81=h

h=11.81.

Therefore, the height of the pyramid is 11.81.

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3 years ago
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