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3 years ago

Somebody please help!!!

Mathematics

1 answer:

Mama L [17]3 years ago

8 0

(3x^2+9x-6) - (2x^3-4x^2+6x-4)
Short Answer
2x^3+7x^2+3x-2

Step by Step
1.)2x^3 doesn’t subtract from anything because there are no other trinomials

2.)3x^2 - (-)4x^2 = 7x^2 because a double negative cancels out and you end up adding them

3.)9x-6x=3x

4.)-6 - (-)4 = -2 because double negatives cancel out into addition

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HELP ASAP

Sindrei [870]

Answer:

median = 27

range = 29

mode = 32

maximum value = 41

interquartile range = 21

minimum = 12

upper quartile = 35

mean = 25

lower quartile = 14

Step-by-step explanation:

hope i helped

8 0

3 years ago

PLEASE ANSWER ASAP FOR BRAINESLT!!!!!!!!!!!!!!!!!!

valkas [14]

Answer:

18.84 feet is the right answer

4 0

3 years ago

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Help please !! explain if can too? :)

pychu [463]

Answer:

29 because lines ac and bd are perpendcular and equal.

Step-by-step explanation:

im not fully sure my explanation is good enough

8 0

3 years ago

What is the completely factored form of d4 -8d2 + 16

irinina [24]

According to Vieta's Formulas, if $x_1,x_2$ are solutions of a given quadratic equation:

$ax^2+bx+c=0$

Then:

$a(x-x_1)(x-x_2)$ is the completely factored form of $ax^2+bx+c$ .

If choose $x=d^2$ , then:

$\displaystyle x^2-8x+16=0\\\\x_{1,2}= \frac{8\pm \sqrt{64-64} }{2}=4$

So, according to Vieta's formula, we can get:

$x^2-8x+16=(x-4)(x-4)= (x-4)^2$

But $x=d^2$ :

$d^4-8d^2+16=(d^2-4)^2=[(d+2)(d-2)]^2=(d+2)^2(d-2)^2$

8 0

3 years ago

A total investment of $10,700 is made into two savings accounts. One account yields 5% simple interest and the other 6% simple i

AlladinOne [14]

Answer:

He earn $535.00 in the 5% account

Step-by-step explanation:

$I = \frac{prt}{100}$

I = interest amount

p = $10 700

r = 5%

t = 1 year

I = (10700×5×1)/100

= $535.00

(Correct me if i am wrong)

5 0

3 years ago

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