I really need help...Will mark brainiest

Mathematics

1 answer:

Sophie [7]3 years ago

3 0

Answer:

$x^{2} -1$

Step-by-step explanation:

You will need to multiply and distribute out the equation.

$(x-1)(x+1)\\x^{2} - x + x -1\\x^{2} - 1$

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Please help.Please show the formula,thanks.

Yuki888 [10]

Answer:

DE=6.3

Step-by-step explanation:

triangles are similar so, its sides and angles are comgruent.

side BC=side DE

side BC=6.3

side DE=6.3

<h3>Note:if you need to ask any question please let me know.</h3>

5 0

3 years ago

What is the degree of each polynomial?

Lana71 [14]

(1) Degree 4 (x^4)

(2) Degree 7 (x^7)

(3) Degree 5 (x^2y^3)

(4) Degree 4 (x^4)

(5) Degree 2 (x^2)

(6) Degree 7 (x^7)

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4 years ago

Read 2 more answers

Help meeeeee pleaseeeeeee

marusya05 [52]

Roy is correct. When you multiply fractions, you multiply the numerator of one fraction and the other numerator of the other fraction, and vice versa for denominator.
7 x 3 = 21 (Numerators)
——- —-
3 x 8 = 32 (Denominators)

I hope this helped!

3 0

3 years ago

Given the Cos(x) = -2/3, then the Sec(x) = ? What is the answer

ivanzaharov [21]

Answer:

$sec x = - \frac{3}{2}$