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3 years ago

Which best describes the rule for this pattern 1,-12, 12,-1

Mathematics

2 answers:

Tomtit [17]3 years ago

5 0

Positive negative positive negative

Alexxx [7]3 years ago

5 0

Answer:

1-12

Step-by-step explanation:

its rigth.......

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Determine the area, in square centimeters, of

lapo4ka [179]

Step-by-step explanation:

quarter circle means that you just find the are and then divide it by 4.

hence,

(3.14 × 8²) ÷ 4 = answer

the answer is 50.24 cm²

hope this helps.

6 0

2 years ago

Please help thank you

Cerrena [4.2K]

Answer:

the first one maybe?

Step-by-step explanation:

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3 years ago

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Find the value of x and the value of y.

Zina [86]

The answer is B. x = 65, y = 10.

6 0

4 years ago

For what value of a is the volume of the tetrahedron formed by the coordinate planes and the plane (x/a) (y/10) (z/6)

kotykmax [81]

This question is incomplete, the complete question is;

For what value of a is the volume of the tetrahedron formed by the coordinate planes and the plane (x/a) + (y/10) + (z/6) = 1 equal to 10?

Answer: the value of a is 1

Step-by-step explanation:

Given that;

Volume of tetrahedron bounded by plane (x/a) + (y/10) + (z/6) = 1

and coordinate plane is; V = 1/6|abc|

(x/a) + (y/10) + (z/6) = 1

volume = 10

10 = 1/6 | a × 10 × 6 |

60 = a × 10 × 6

60 = 60a

a = 60 / 60

a = 1

Therefore the value of a is 1

3 0

3 years ago

Find a number between 1 5/8 and 1.62501

Sauron [17]

Answer:

$1 \frac{125001}{200000}$ or 1.625005

Step-by-step explanation:

To find a number between two numbers, if you're allowed to pick any number you want between those two numbers, one natural choice is the midpoint... the point that is exactly halfway between the two numbers.

Finding a midpoint

To find the midpoint of two numbers, divide their sum by 2:

$\text{midpoint}=\dfrac{\text{first number}+\text{second number}}{2}$

It is convenient to have both numbers in decimal form or both numbers in fraction form for adding and dividing by 2.

Fraction form:

To convert 1.62501 to a fraction, we note that the last decimal digit is in the hundred-thousandths place, so we'll need a fraction with 100,000 in the denominator.

$1.62501=1\frac{62501}{100000}$

Using our midpoint formula:

$\text{midpoint} = \dfrac{ 1 \frac{5}{8} + 1 \frac{62501}{100000} } {2}$

find a common denominator...

$\text{midpoint} = \dfrac{ 1 +(\frac{5}{8})*\frac{12500}{12500} + 1 +\frac{62501}{100000} } {2}$

$\text{midpoint} = \dfrac{ 1 + \frac{62500}{100000} + 1 +\frac{62501}{100000} } {2}$

combining like terms...

$\text{midpoint} = \dfrac{ 2 +\frac{125001}{100000} } {2}$

rewriting the division as multiplication of a reciprocal....

$\text{midpoint} = \left(2 +\frac{125001}{100000} \right) *\dfrac{1}{2}$

distributing...

$\text{midpoint} = \left(2 *\dfrac{1}{2} +\frac{125001}{100000} *\dfrac{1}{2}\right)$

$\text{midpoint} = 1 +\frac{125001}{200000}$

$\text{midpoint} = 1 \frac{125001}{200000}$

So, $1 \frac{125001}{200000}$ is the midpoint of the two numbers, and is a number that is between them.

Decimal form:

To convert $1 \frac{5}{8}$ to a decimal, we divide 5 by 8. 5 divided by 8 is 0.625.

So, $1 \frac{5}{8}=1.625$

To find a midpoint of 1.625 and 1.62501, we use our midpoint formula:

Using our midpoint formula:

$\text{midpoint} = \dfrac{ 1.625 + 1.62501} {2}$

$\text{midpoint} = \dfrac{ 3.25001} {2}$

$\text{midpoint} =1.625005$

So, 1.625005 is midpoint of the two numbers, and is a number that is between them.

Extension with decimals:

Knowing the decimal form of the two numbers, 1.625 and 1.62501, we can include trailing zeros at the end of these numbers (since it is to the right of the decimal point), so that 1.625 is equivalent to 1.625000, and 1.62501 is equivalent to 1.625010.

Note that the last two digits are in the millionths place, and that changing the digit in the millionths place for the first number (while leaving all other digits as they are) will also be a number between the two numbers (all 9 of the numbers with a star written below):

1.625000

1.625001*

1.625002*

1.625003*

1.625004*

1.625005*

1.625006*

1.625007*

1.625008*

1.625009*

1.625010

8 0

2 years ago