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3 years ago

Which of the following equations has no real solutions?

Mathematics

1 answer:

kupik [55]3 years ago

6 0

B. 5x - 8 = 40x - 8 has no solution because on the right side we will get 0

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Is 8,749,628 divisible by 8?<br><br> Help me plz

CaHeK987 [17]

Answer:

so yes

Step-by-step explanation:

If you can divide two numbers without a remainder, then the first number is divisible by the second.

For example, 12 is divisible by 2.

12÷2=6

But 12 is not divisible by 5. When you divide 12 by 5, you get a remainder.

12÷5=2 R2

8 0

2 years ago

Read 2 more answers

A simple random sample with n = 58 provided a sample mean of 24.5 and a sample standard deviation of 4.4. (Round your answers to

nasty-shy [4]

Answer: (23.53, 25.47)

Step-by-step explanation:

The confidence interval for population mean(when population standard deviation is unknown) is given by :-

$\overline{x} \pm\ t^*\dfrac{s}{\sqrt{n}}$

, where $\overline{x}$ = sample mean

n = sample size.

s = sample standard deviation.

t* = Critical value.

Given : $\overline{x}=24.5$

s= 4.4

Confidence level = 90% =0.090

Significance level = $\alpha=1-0.90=0.10$

Sample size : n= 58

Degree of freedom : df= n-1= 57

Using t-distribution table , the critical value :

$t_{\alpha/2,\ df}= t_{0.05,\ 57}=1.6720$

Then, the confidence interval will be :-

$24.5 \pm\ (1.6720)\dfrac{4.4}{\sqrt{58}}$

$24.5 \pm\ (1.6720)\dfrac{4.4}{7.61577310586}$

$24.5 \pm\ 0.965995165263\approx24.5\pm0.97\\\\=(24.5-0.97,\ 24.5+0.97)\\\\=(23.53,\ 25.47)$

Hence, a 90% confidence interval for the population mean = (23.53, 25.47)

6 0

3 years ago

Please help with this question. I need help with proportional relationships

olga2289 [7]

Okay what is the question?

4 0

2 years ago

Is the point (−3, 0) on the x-axis or y-axis?

Pie

Answer:

The point is on the x-axis , the x-axis is always the first number which is (-3) & the y-axis is (0) and you still have to graph the zero

Step-by-step explanation:

3 0

2 years ago

He oblique prism has a rectangular base with a width of 10 units and a length of 13 units. the top base extends 8 units to the r

kumpel [21]

Answer:

The correct option is 3.

Step-by-step explanation:

It is given that the oblique prism has a rectangular base with a width of 10 units and a length of 13 units. The top base extends 8 units to the right of the bottom base.

From the figure the height of prism is

$h=\sqrt{(17)^2-8^2}=\sqrt{225}=15$

The height of prism is 15.

The volume of prism is

$V=(\text{base area })\times h$

$V=(10\times 13)\times 15$

$V=1950$

The volume of prism is 1950 unit². Therefore the correct option is 3.

4 0

2 years ago

Read 2 more answers