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2 years ago

15

Which numbers make a true statement when placed in the box? 7.902 > Select each correct answer.

2 answers:

Zanzabum2 years ago

6 0

The answer is b, I’m not saying it’s true but just predicting xoxoox

garik1379 [7]2 years ago

6 0

I think the answer is b

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bezimeni [28]

Answer:

5 and -5 (±5)

Step-by-step explanation:

x²-8=17

x²=25

√x²=√25

x=±5

3 0

2 years ago

Read 2 more answers

Write the equation of the sphere in standard form. x^2 + y^2 + z^2 + 2x − 4y − 6z = 22

madam [21]

The equation $x^{2} +y^{2} +z^{2} +2x-4y-6z=22$ in standard form looks like $(x+1)^{2} +(y-2)^{2} +(z-3)^{2} =(6)^{2}$ .

Given equation of sphere be $x^{2} +y^{2} +z^{2} +2x-4y-6z=22$ .

We are required to express the given equation in the standard form of the equation of sphere.

Equation is basically relationship between two or more variables that are expressed in equal to form. Equation of two variables look like ax+by=c. It may be linear equation,quadratic equation, cubic equation or many more depending on the powers of variables. The standard form of the equation of sphere looks like $x^{2} +y^{2} +z^{2} =r^{2}$ .

The given equation is $x^{2} +y^{2} +z^{2} +2x-4y-6z=22$ .

We have to break 22 which is in right side into various parts according to the left side of the equation.

$x^{2} +y^{2} +z^{2} +2x-4y-6z=-1-4-9+36$

$x^{2} +y^{2} +z^{2} +2x-4y-6z+1+4+9=36$

$x^{2} +1+2x+y^{2}+4-4y+z^{2} +9-6z=36$

$x^{2} +(1)^{2} +2*1*x+y^{2} +(2)^{2} -2*2y+z^{2} +(3)^{2} -2*3z=36$

$(x+1)^{2} +(y-2)^{2} +(z-3)^{2} =(6)^{2}$

Hence the equation $x^{2} +y^{2} +z^{2} +2x-4y-6z=22$ in standard form looks like $(x+1)^{2} +(y-2)^{2} +(z-3)^{2} =(6)^{2}$ .

Learn more about equations at brainly.com/question/2972832

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7 0

1 year ago

There are 25 nickels and quarters. W coins are nickels and the rest are quarters. Write and algebraic expression for the number

den301095 [7]

The algebraic expression would be that Quarters = 25 - W

5 0

2 years ago

Inferential statistical tests are used for all of the following except: a. describing a sample with means and standard deviation

Anika [276]

Answer:

a. Describing a sample with mean and standard deviation.

Step-by-step explanation:

Statistics can be categorized into descriptive and inferential statistics.

descriptive statistics uses data for descriptions through numerical analysis. It can be further divided in four parts.

Measures of Central Tendency ( Mean, Median, and Mode)

Measures of Frequency (Count, Percent, Frequency)

Measures of Position (Percentile Ranks, Quartile Ranks.)

Measures of Dispersion ( Range, Standard Deviation)

Inferential statistics however is based on assumptions and conclusions and generalizations drawn from samples or checks.

options b to d are all examples of inferential statistics while option a is an example of descriptive statistics.

8 0

2 years ago

Lake Superior, along the us Canada border, has a maximum depth of 1333 feet. There are 5280 feet in one mile. How deep is lake S

Reika [66]

Answer:

= 0.2525 miles

Step-by-step explanation:

7 0

2 years ago