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4 years ago

What is 44% calculated percentage of number 800?

Mathematics

2 answers:

BlackZzzverrR [31]4 years ago

8 0

44% of 800 is 352 , ifs that's all you need
if not ask another question

Jet001 [13]4 years ago

4 0

352 would be the answer.

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Write an expression that represents the volume of a cube with side length 2x^3. (For any cube with side length s, v = s^3 = s.s.

leva [86]

Answer:

C. 8x^9

Step-by-step explanation:

(2x³)³=8x^9

5 0

3 years ago

g 7. Find Re f and Im f and find their values at the given z. (Both answers should be included) f = z⁄(z + 1), z = 4 − 5

Schach [20]

Answer:

The real and imaginary parts of the result are $\frac{1441}{1601}$ and $\frac{4}{1601}$ , respectively.

Step-by-step explanation:

Let be $f(z) = \frac{z}{z+1}$ , the following expression is expanded by algebraic means:

$f(z) = \frac{z\cdot (z-1)}{(z+1)\cdot (z-1)}$

$f(z) = \frac{z^{2}-z}{z^{2}-1}$

$f(z) = \frac{z^{2}}{z^{2}-1}-\frac{z}{z^{2}-1}$

If $z = 4 - i5$ , then:

$z^{2} = (4-i5)\cdot (4-i5)$

$z^{2} = 16-i20-i20-(-1)\cdot (25)$

$z^{2} = 41 - i40$

Then, the variable is substituted in the equation and simplified:

$f(z) = \frac{41-i40}{41-i39} -\frac{4-i5}{41-i39}$

$f(z) = \frac{37-i35}{41-i39}$

$f(z) = \frac{(37-i35)\cdot (41+i39)}{(41-i39)\cdot (41+i39)}$

$f(z) = \frac{1517-i1435+i1443+1365}{3202}$

$f(z) = \frac{2882+i8}{3202}$

$f(z) = \frac{1441}{1601} + i\frac{4}{1601}$

The real and imaginary parts of the result are $\frac{1441}{1601}$ and $\frac{4}{1601}$ , respectively.

8 0

3 years ago

Which statements about the graph of the function f(x)=-x^2-4x+2 are true? Check all that apply!!!

Helga [31]

The function has a positive y-intercept for sure but im not sure about the others

5 0

4 years ago

Read 2 more answers

Please Assist Me With This

natka813 [3]

Answer:

(16 - 8 × 2 ÷ 4 + 6) ÷ 3 = 6

Step-by-step explanation:

The given expression is (16 - 8 × 2 ÷ 4 + 6) ÷ 3

We will solve this expression by using BODMAS rule,

B - Bracket (Parenthesis)

O - Order (exponents)

D - Division

M - Multiplication

A - Addition

S - Subtraction

(16 - $8^{1}$ × 2 ÷ 4 + 6) ÷ 3

We will solve the expression inside the parenthesis first followed up by the exponents,

(16 - $8^{1}$ × 2 ÷ 4 + 6)

= (16 - 8 × 2 ÷ 4 + 6)

Then Divide,

= (16 - 8 × $\frac{1}{2}$ + 6)

Then multiply,

= (16 - 4 + 6)

Further addition,

= (22 - 4 )

At last subtract,

= (18)

Now put the solution of the parentheses in the expression,

= (18) ÷ 3

= 6

Therefore, solution of the given expression will be 6.

7 0

3 years ago

Can anyone answer these questions

SOVA2 [1]

Answer:

see explanation

see explanationStep-by-step explanation:

Note that

(a - $\frac{1}{a}$ )²

= a² - 2 + $\frac{1}{a^2}$

= a² + $\frac{1}{a^2}$ - 2

= 11 - 2

= 9

Thus

(a - $\frac{1}{a}$ )² = 9 ( take the square root of both sides )

a - $\frac{1}{a}$ = 3

Since the expression is a perfect square, then

(4x + 5y)²

= 16x² + 40xy + 25y²

Comparing coefficients, then

a - 1 = 40 ( add 1 to both sides )

a = 41

99² - 87² ← is a difference of squares and factors as

= (99 - 87)(99 + 87)

= 12 × 186 = 1152, thus

24a = 1152 ( divide both sides by 24 )

a = 48

3 0

4 years ago