3 years ago

What are the fractions simplest form

Mathematics

1 answer:

noname [10]3 years ago

5 0

Answer:

the first one 2/-1, hope it helps...

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Differentiate in respect to x

mixer [17]

Answer:

$e^{2x}(2x^3+3x^2)$

Step-by-step explanation:

Use the Product Rule (uv)' = uv' + u'v

$\frac{d}{dx}(x^3 e^{2x})=x^3\frac{d}{dx}(e^{2x})+\frac{d}{dx}(x^3)e^{2x}\\=x^3(2e^{2x})+3x^2e^{2x}\\=e^{2x}(2x^3+3x^2)$

3 0

3 years ago

Which statements are true? Check all that apply.

LenaWriter [7]

Answer: ACE

The radius of the cone is 9 units

The height of the cone is 12 units

The volume of the cone is represented by the expression 1/3 pie (9)2(12)

Step-by-step explanation:

7 0

3 years ago

In a right triangle, the acute angles measure 2x + 50 and 3x degrees. What is the measure of the smallest angle of the triangle?

andrezito [222]

Since this is a right triangle the two acute angles must sum to 90 degrees because a triangle's angles must sum to 180 degrees.

2x+50+3x=90

5x+50=90

5x=40

x=8

So the smallest angle is 3x=3*8=24°

4 0

3 years ago

Catherine Chao, Director of Marketing Research, is evaluating consumer acceptance of a new toothpaste package. She plans to use

Allisa [31]

Answer: 323

Step-by-step explanation:

The formula to calculate the sample size for proportion is given by :_

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$

Given : Significance level : $\alpha: 1-0.95=0.095$

Critical value : $z_{\alpha/2}=1.96$

Margin of error : $E=0.05$

The proportion of successes : $p=0.70$

Now, the required sample size will be :-

$n=0.70(0.30)(\dfrac{(1.96)}{0.05})^2=322.6944\approx323$

Hence, the minimum required sample size = 323

8 0

3 years ago

A rectangle is 12 m longer than it is wide. It’s perimeter is 68m. Find its length and width?

BabaBlast [244]

Answer:

Length: 23m

Width: 11

Step-by-step explanation:

68-24=44

44÷4=11

11+12=23

23+23=46+11=57+11=68

6 0

2 years ago