Which shows a rational number plotted correctly on a number. line

Mathematics

1 answer:

aliina [53]3 years ago

4 0

Answer:

If this is the question you are referring to, then the answer is B, which is already highlighted for your convenience.

You might be interested in

What is the percent decrease of 80 to 64

devlian [24]

The amount of decrease is (80 - 64) = 16

The fraction of decrease is the fraction of the original amount that disappeared.

That fraction is (16 / 80) = 1/5 = 0.2

To change a decimal to a percent,
move the decimal point 2 places that way ==> .

0.2 = 20%

6 0

3 years ago

Given the angle 1=2x+35 and the angle 2=3x+7. Find the angle measures

user100 [1]

tiene que copiar sii el primero y segundo todos

8 0

3 years ago

-3r-8(8r+8)=-9(-4+9r)

natulia [17]

Answer:

r= 7.14 (rounded to 2 decimal places)

Step-by-step explanation:

We have to solve this equation for the value of r. We will use distributive property and basic algebra to solve this.

Distributive property is a(b+c) = ab + ac

Now, the steps of solving are shown below:

$-3r-8(8r+8)=-9(-4+9r)\\-3r -64r-64=36-81r\\-67r-64=36-81r\\-67r+81r=36+64\\14r=100\\r=\frac{100}{14}\\r=7.14$

Hence, value of r is 7.14 (rounded to 2 decimal places)

8 0

3 years ago

Suppose heights of seasonal pine saplings are normally distributed and have a known population standard deviation of 17 millimet

Mumz [18]

Answer:

$296.693\leq x\leq 319.307$

Step-by-step explanation:

The confidence interval for the population mean x can be calculated as:

$x'-z_{\alpha /2}\frac{s}{\sqrt{n} } \leq x\leq x'+z_{\alpha /2}\frac{s}{\sqrt{n} }$

Where x' is the sample mean, s is the population standard deviation, n is the sample size and $z_{\alpha /2}$ is the z-score that let a proportion of $\alpha /2$ on the right tail.