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4 years ago

HELP ASAP

Mathematics

2 answers:

nirvana33 [79]4 years ago

5 0

Answer:PART A/ C PART B/D

Step-by-step explanation:

Hitman42 [59]4 years ago

4 0

Answer:

sfgsdbjgjbgjsdgjb

Step-by-step explanation:

IM USING THIS TO GIVE BRAINLIESTHFHFHSH

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Find the sq root the sq root of 5 is 2.24

vlada-n [284]

Answer: $\bold{\dfrac{7-3\sqrt5}{2}}$

Step-by-step explanation:

You did great until you expanded (3 - √5)². <em>You forgot the middle term</em>

$\dfrac{3-\sqrt5}{3+\sqrt5}\bigg(\dfrac{3-\sqrt5}{3-\sqrt5}\bigg)\\\\\\=\dfrac{(3-\sqrt5)(3-\sqrt5)}{(3+\sqrt5)(3-\sqrt5)}\\\\\\=\dfrac{9-3\sqrt5-3\sqrt5+5}{9-3\sqrt5+3\sqrt5-5}\\\\\\=\dfrac{14-6\sqrt5}{4}\\\\\\\text{Factor out a 2 from the numerator and denominator}\\=\dfrac{2(7-3\sqrt5)}{2(2)}\\\\\\=\large\boxed{\dfrac{7-3\sqrt5}{2}}$

6 0

3 years ago

Please help me please

k0ka [10]

Answer:

The first one

Step-by-step explanation:

because if u divide 400 by 25 you get 16 and that's how many days it took him

400 is the pages remaining

6 0

4 years ago

( -7v 4 - 5v ) - ( -5v 3 - 2v ) + ( -7v - 6v 4 - 4v 3 ) simplified

LekaFEV [45]

Answer:

-13v^4 + v^3 - 10v (if simplified)

Step-by-step explanation:

combine like terms

(-7v^4 - 5v) - (-5v^3 - 2v)+ ( - 7v - 6v^4 - 4v^3)

-7v^4 + -6v^4 = -13v^4

-5v^3 + -4v^3 = v^3 (the five becomes positive because of the negative sign infront of the parenthesis) Example: -(-5v^3) = +5v^3

-13v^4 + v^3 -5v -(-2v) -7v (now we have the -2 left alone in the parenthesis which means it becomes positive too) Example: -(-2v) = +2v

-5v +2v - 7v = -3v -7v = -10v

Answer: -13v^4 + v^3 - 10v

7 0

3 years ago

If a polynomial is divided by x minus 5, the quotient is 2 x squared plus 7 x minus 7 and the remainder is 7. Find the original

OlgaM077 [116]

Answer:

The original polynomial is $2x^3-3x^2-42x+42$ .

Step-by-step explanation:

The division of polynomial is analogue to the division of integers or natural numbers. For example, if we divide 25 by 6, we obtain that 4 is the quotient and the remainder is 1. We can recover 25 as 25 = 6*4+1.

Then, with this particular case, if we denote by P(x) the original polynomial, we have:

$P(x) = (x-5)(2x^2+7x-7)+7.$

Expanding the above multiplication:

$P(x) = = 2x^3-3x^2-42x+42.$

In general, given a polynomial P(x), if we divide it by another polynomial Q(x) (the divisor), there exist polynomials S(x) (the quotient) and R(x) (the remainder) such that

P(x) = Q(x)S(x) + R(x).

4 0

3 years ago

FINDING ANGLE MEASURES Find the value of x. Then classify the triangle by its angles.

vazorg [7]

Answer:

i hope my answer is right for you

4 0

3 years ago