All categories

2 years ago

Find the product of 2/3 × 4/7

Mathematics

2 answers:

hammer [34]2 years ago

5 0

Answer:

8/21

Step-by-step explanation:

kirill [66]2 years ago

3 0

Answer:

8/21

Step-by-step explanation:

2x4 = 8

3x7 = 21

8/21 cannot be simplified

You might be interested in

What is the ans and pls explain

prohojiy [21]

The answer is a happy to help

8 0

3 years ago

Find the slope of the line

mel-nik [20]

Answer:

Undefined or No solution

Step-by-step explanation:

Because this line is a straight, vertical line, it means that the slope is undefined, or no solution. Any time you see a straight line going up and down, this will be true. However, if you see a horizonal line, this will not be true.

4 0

3 years ago

(co Write a cosine function that has an amplitude of 2, a midline of 5 and a period of 8.

tatyana61 [14]

Answer:

y=2 cos (π/4x-π/4)

Step-by-step explanation:

Given

A cosine function has an amplitude of 2, a midline of 5 and a period of 8.

To find:

A cosine function.

Explanation:

Let the function be,

$y=Acos(ws+p)$

Since amplitude is 2.

Then,

$A=2$

Also, since the period is 8.

Then,

$w=\frac{2\pi }{8}$

$w=\frac{\pi }{4}$

And, since midline is 5.

Hence, the cosine function is,

y=2 cos ( $\frac{\pi }{4}$ x- $\frac{\pi }{4}$

6 0

2 years ago

A 98% confidence interval for the mean of a population is to be constructed and must be accurate to within 0.3 unit. A prelimina

BaLLatris [955]

Answer:

$n = (\frac{2.326*1.7}{0.3})^2= 173.73$

And the value for n rounded up would be n = 174

Step-by-step explanation:

We have the following info given:

$s= 1.7$ previous estimation for the deviation

$ME=0.03$ the margin of error desired

$Conf =0.98$ represent the confidence

The Margin of error is given by:

$ME = z_{\alpha/2} \frac{\sigma}{\sqrt{n}}$

If we solve for the value of n we got:

$n= (\frac{z*\sigma}{ME})^2$

For this problem we know that the confidence is 98% so then the significance level would be $\alpha=0.02$ and the critical value would be:

$z_{\alpha/2}= 2.326$

And replacing we got:

$n = (\frac{2.326*1.7}{0.3})^2= 173.73$

And the value for n rounded up would be n = 174

3 0

3 years ago

What is the surface area of the triangular prism?

Inessa05 [86]

Answer:

9 x 24 x 1/2(basically dividing by 2) = 108 , 108 x 2(two triangles) = 216

40 x 15 = 600, 600 x 2(two slanted rectangles) = 1200

40 x 24 = 960 (area of base)

Add given areas:

216 + 1,200 + 960 = 2,376 square feet, B.

4 0

3 years ago

Read 2 more answers

Find the product of 2/3 × 4/7​

Find the product of 2/3 × 4/7