3 years ago

Which expressions can never result in a negative real number when evaluated for any value of x? Selecta

Mathematics

1 answer:

Y_Kistochka [10]3 years ago

8 0

I think it’s is 5 and take it’s now

You might be interested in

For brainiest:)):):):):):)

Elenna [48]

Answer:

1.) a

2.) ?

Step-by-step explanation:

5 0

3 years ago

Expand the following using the Binomial Theorem and Pascal’s triangle (2x − 3y)^4

krok68 [10]

Answer:

Step-by-step explanation:

Binomial Expansion:

$(2x-3y)^4 \\\\= 4C_0(2x)^4 (-3y)^0 + 4C_1(2x)^3 (-3y)^1 + 4C_2(2x)^2(-3y)^2 \\\\+ 4C_3(2x)^1 (-3y)^3 + 4C_4(2x)^0 (-3y)^4\\\\=16x^4 + 4(8x^3)(-3y) + 6(4x^2)(9y^2) + 4(2x)(-27y^3) + 81y^4\\\\=16x^4 - 96x^3y + 216x^2y^2-216xy^3 +81y^4$

Pascal's Triangle:

Zero row 1

First row 1 1

Second row 1 2 1

Third row 1 3 3 1

Fourth row 1 4 6 4 1

8 0

3 years ago

If cosX = -0.2, and x is in quadrant II, then what it the value of sinX

Tems11 [23]

$\sin x>0$ when $x$ is in quadrant II, so

$\cos^2x+\sin^2x=1\implies\sin x=\sqrt{1-\cos^2x}=\sqrt{1-(-0.2)^2}\approx1.02$

7 0

3 years ago

Read 2 more answers

You must work over 10 hours next week. You need to earn

neonofarm [45]

Dog walk for 6 hours and car wash attendant for 3

5 0

3 years ago

FOR 100 POINTS I WILL SEND YOU 500 POINTS IF YOU ANSWER CORRECTLY !!!!!!! The figure shows two parallel lines AB and DE cut by t

ki77a [65]

Answer:

the answer is c hope this helps have a nice day:)

Step-by-step explanation:

6 0

3 years ago