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DerKrebs [107]
3 years ago
8

The expression [(-7) ³ - (-7³)] - [(-7) ² + 7²] results in

Mathematics
2 answers:
scZoUnD [109]3 years ago
5 0
BASIC \: \: ALGEBRA \\ \\ \\ Given \: \: expression \: - \\ ( {( - 7)}^{3} - ( { - 7)}^{3} ) - ( {( - 7)}^{2} + {(7)}^{2} ) \\ \\ = \: \: 0 \: - \: ( {( - 7)}^{2} + {(7)}^{2} ) \\ \\ = \: \: 0 \: - (49 + 49) \\ \\ = \: \: 0 - 98 \\ \\ \\ = \: \: - 98 \: \: \: \: \: \: \: \: \: \: Ans.
Reil [10]3 years ago
4 0
[(-7)(-7)(-7) + (-7)(-7)(-7)] - [(-7)(-7) + (7)(7)] 
(-343 + -343) - (49 + 49)
-686 - 98 = -784
The answer is a) -784 :)
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Sunset, inc., has a book value of equity of $14,865. long-term debt is $8,675. net working capital, other than cash, is $2,315.
juin [17]
Balance sheet equation states that:

Assets, A = Liabilities, L + Equity, E => A=L+E

In the current case,
L = Long term debt + Current liabilities = $8,675+$1,865 = $10,540
E = $14,865

Therefore,
A = 14,865 +10,540 = $25,405

Now,
Current assets (excluding cash) = current liabilities+Net working capital, other than cash = $1,865+$2,315 = $4,180

Additionally,
A = Fixed assets+Current assets (excluding cash) + Cash

Therefore,
Cash = 25,405-20,660-4,180 =  $565
 
8 0
3 years ago
The vertices of ∆ABC are A(-2, 2), B(6, 2), and C(0, 8). The perimeter of ∆ABC is units is? What is the area?
11111nata11111 [884]

we have

A(-2, 2),B(6, 2),C(0, 8)

see the attached figure to better understand the problem

we know that

The perimeter of the triangle is equal to

P=AB+BC+AC

and

the area of the triangle is equal to

A=\frac{1}{2}*base *heigth

in this problem

base=AB\\heigth=DC

we know that

The distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

Step 1

<u>Find the distance AB</u>

A(-2, 2),B(6, 2)

Substitute the values in the formula

d=\sqrt{(2-2)^{2}+(6+2)^{2}}

d=\sqrt{(0)^{2}+(8)^{2}}

dAB=8\ units

Step 2

<u>Find the distance BC</u>

B(6, 2),C(0, 8)

Substitute the values in the formula

d=\sqrt{(8-2)^{2}+(0-6)^{2}}

d=\sqrt{(6)^{2}+(-6)^{2}}

dBC=6\sqrt{2}\ units

Step 3

<u>Find the distance AC</u>

A(-2, 2),C(0, 8)

Substitute the values in the formula

d=\sqrt{(8-2)^{2}+(0+2)^{2}}

d=\sqrt{(6)^{2}+(2)^{2}}

dAC=2\sqrt{10}\ units

Step 4

<u>Find the distance DC</u>

D(0, 2),C(0, 8)

Substitute the values in the formula

d=\sqrt{(8-2)^{2}+(0-0)^{2}}

d=\sqrt{(6)^{2}+(0)^{2}}

dDC=6\ units

Step 5

<u>Find the perimeter of the triangle</u>

P=AB+BC+AC

substitute the values

P=8\ units+6\sqrt{2}\ units+2\sqrt{10}\ units

P=22.81\ units

therefore

The perimeter of the triangle is equal to 22.81\ units

Step 6

<u>Find the area of the triangle</u>

A=\frac{1}{2}*base *heigth

in this problem

base=AB=8\ units\\heigth=DC=6\ units

substitute the values

A=\frac{1}{2}*8*6

A=24\ units^{2}

therefore

the area of the triangle is 24\ units^{2}

4 0
3 years ago
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Alex Ar [27]
Answer: 1/5 x = 10 * 1/5. 1/5x = 2. x = 2*5 = 10

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3 years ago
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You earned $210 over 3 years on an account with a 7% interest rate. What was your initial deposit (principal)?
AveGali [126]

Answer:

3,000$

Step-by-step explanation:

5 0
3 years ago
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The numbers -5,7,-18,and 0 are examples of
olga_2 [115]

Answer:

real numbers

Step-by-step explanation:

3 0
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