Ask question

Ask question

All categories

3 years ago

10

What is the product of 7√20 and 10√6 ?

1 answer:

mylen [45]3 years ago

7 0

$\bf 7\sqrt{20}\cdot 10\sqrt{6}\implies (7)(10)\sqrt{(20)(6)}\implies 70\sqrt{120}
\\\\\\
70\sqrt{4\cdot 30}\implies 70\sqrt{2^2\cdot 30}\implies 140\sqrt{30}$

You might be interested in

What is the maximum number of relative extrema contained in the graph of this function f(x)=3x^3-x^2+4x-2

Sergeeva-Olga [200]

The maximum number of turning points in a cubic function is 2.

In this case,

$f(x)=3x^3-x^2+4x-2\implies f'(x)=9x^2-2x+4$

The discriminant is $(-2)^2-4(9)(4)=-140$ , which means the derivative has no real roots. This means there are no critical points and thus no turning points/relative extrema.

5 0

3 years ago

Read 2 more answers

Suppose a shipment of 190 electronic components contains 3 defective components. To determine whether the shipment should be ac

PolarNik [594]

Answer:

0.0467

Step-by-step explanation:

Probabilty of being defective is $\frac{3}{190}$

So probability of being good is $\frac{187}{190}$

Now,

Probability that all 3 of them are good is:

$\frac{187}{190}^{3}=0.9533$

Now, to find probability of rejection, we subtract the now found probability from 1. Thus, we have:

1 - 0.9533 = 0.0467

5 0

3 years ago

HELPP MEE PLEASEeeee

Furkat [3]

Answer:

i^8

Step-by-step explanation:

7 0

3 years ago

(1+tan^2 A)cot A/cosec^2 A= tanA

Rufina [12.5K]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identities

1 + tan²A = sec²A , secA = $\frac{1}{cosA}$ , cosecA = $\frac{1}{sinA}$ , cotA = $\frac{cosA}{sinA}$ , tanA = $\frac{sinA}{cosA}$

Consider the left side

$\frac{(1+tan^2A)cotA}{cosec^2A}$

= $\frac{sec^2AcotA}{cosec^2A}$

= $\frac{\frac{1}{cos^2A}(\frac{cosA}{sinA}) }{cosec^2A}$

= $\frac{\frac{1}{cosAsinA} }{\frac{1}{sin^2A} }$

= $\frac{1}{cosAsinA}$ × sin²A

= $\frac{sinA}{cosA}$

= tanA = right side , thus proven

4 0

3 years ago

What is the area of a circle whose radius is 4 ft?

pychu [463]

It would be 50.24 ft
BTW in this case I used 3.14 for pi

5 0

3 years ago

Read 2 more answers