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Snowcat [4.5K]
2 years ago
12

What digit (s) can be in the ones place of a number that has 5as a factor

Mathematics
1 answer:
slavikrds [6]2 years ago
7 0
If 5 is a factor of the number, then its ones place is either a 5 or a zero.
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What is the volume (in cubic units) of a sphere with a radius of 18 units? Assume that π = 3.14 and round your answer to the nea
Nataly [62]

Answer:

The volume of sphere is 24416.64\ cm^3.

Step-by-step explanation:

We have,

Radius of a sphere is 18 units.

It is required to find the volume of sphere.

The formula of the volume of sphere in terms of radius is given by :

V=\dfrac{4}{3}\pi r^3

Plugging all values in above formula

V=\dfrac{4}{3}\times 3.14\times (18)^3\\\\V=24416.64\ cm^3

So, the volume of sphere is 24416.64\ cm^3.

7 0
2 years ago
If m = 3 and b = 6, what is the correct equation for Line of Best Fit?
Alchen [17]

Answer:

B

Step-by-step explanation:

The equation is Y = mx + b so just plug in the m and the b

6 0
3 years ago
Read 2 more answers
Construct a 95% confidence interval for the population mean, μ. Assume the population has a normal distribution. A random sample
GuDViN [60]

Answer: (628.48,\ 661.52)

Step-by-step explanation:

Given : Sample size : n=16 , which is a small sample (, 30) so we use t-test.

Sample mean : \overline{x}=645 \text{ hours}

Standard deviation : \sigma = 31 \text{ hours}

Significance level : \alpha=1-0.95=0.05

Critical value : t_{n-1,\alpha/2}=2.131

The confidence interval for population mean is given by :-

\overline{x}\pm t_{n-1,\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=645\pm(2.131)\dfrac{31}{\sqrt{16}}\\\\\approx645\pm16.52\\\\=(645-16.52,\ 645+16.52)\\\\=(628.48,\ 661.52)

Hence, a 95% confidence interval for the population mean \mu = (628.48,\ 661.52)

6 0
3 years ago
A parabola can be represented by the equation y2 = –x. What are the coordinates of the focus and the equation of the directrix?
shutvik [7]

ANSWER

Focus:

(- \frac{1}{4} ,0)

Directrix:

x=\frac{1}{4}

EXPLANATION

The given parabola has equation:

{y}^{2}  =  - x

We compare this to the general equation,

{y}^{2}  =  - 4px

Comparing the coefficient of x, we have:

-4p=-1

p =  \frac{1}{4}

The focus is (-p,0)

(- \frac{1}{4} ,0)

The equation of the directrix is

x=p

x =  \frac{1}{4}

5 0
3 years ago
Read 2 more answers
Simplify the following expression:<br><br> -3(x + 6) + 8x
12345 [234]

Answer:

5x - 18

Step-by-step explanation:

-3(x + 6) + 8x

Multiply

(-3 * x) +  (-3 * 6) + 8x

-3x + (-18) + 8x

5x - 18

Hope this helps :)

3 0
3 years ago
Read 2 more answers
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