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Svetach [21]
3 years ago
15

What is the value of Left-bracket (two-thirds) Superscript 0 Baseline Right-bracket Superscript negative 3?

Mathematics
2 answers:
earnstyle [38]3 years ago
5 0

Answer:

= 1

Step-by-step explanation:

[(2/3)^0]^-3

= 1/1·1·1

= 1

Please thank me if correct :)

Vinil7 [7]3 years ago
3 0

Answer:

The value of the expression is 1.

Step-by-step explanation:

The expression is:

[(\frac{2}{3})^{0}]^{-3}

Exponent rules:

a^{0}=1\\\\(a^{m})^{n}=a^{m\times n}\\\\a^{-m}=\frac{1}{a^{m}}

Simplify the expressions as follows:

[(\frac{2}{3})^{0}]^{-3}=[1]^{-3}

            =\frac{1}{1^{3}}\\\\=\frac{1}{1}\\\\=1

Thus, the value of the expression is 1.

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For what values of x is x2-36=5x true?<br> 0 -9 and -4<br> O4 and 9<br> O4 and -9<br> o 9 and 4
mars1129 [50]

Answer:

-4 and 9

Step-by-step explanation:

we have

x^{2} -36=5x

we know that

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2} -36=5x

x^{2}-5x-36=0

so

a=1\\b=-5\\c=-36

substitute in the formula

x=\frac{-(-5)(+/-)\sqrt{-5^{2}-4(1)(-36)}} {2(1)}

x=\frac{5(+/-)\sqrt{169}} {2}

x=\frac{5(+/-)13} {2}

x=\frac{5(+)13} {2}=9

x=\frac{5(-)13} {2}=-4

therefore

The equation is true for -4 and 9

4 0
3 years ago
Find the compound area of the following shape. Do not include units in your answer. *
qaws [65]

Answer:

357_²

Step-by-step explanation:

find the area of the cut out triangle

20 * 21 = 240

240/2 = 210

find the over all area

21 * 27 = 567

subtract the missing piece

567 - 210 = 357

6 0
3 years ago
Erin buys 4 packs of potatoes costing £2 each, 2 packs of carrots for £3 per pack, and 5 turnips costing 70p each.
docker41 [41]
She would get £2.50

4 times 2 is 8
2 times 3 is 6
0.7 times 5 is 3.5
Add them together
Minus it from 20
It equals £2.50
8 0
3 years ago
If a sample of 362 customers were taken from a population of 5530 customers, could refer to the variance of how many of the cust
aalyn [17]

Answer: 37

Step-by-step explanation:

3 0
4 years ago
If someone is 54 inches tall how tall are they in meters
tigry1 [53]

Answer:

54 inches = 1.3716 meters

Step-by-step explanation:


8 0
3 years ago
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