What is the answer to 2/3[(15-6)-8(8+1)]

Answers

Answer 1

Answer: Calculate the brackets:
$(2)/(3)[ 9- 8 *9] = (2)/(3) (9-72) = (2)/(3) (-63) = 2*(-21) = \boxed {-42} <--answer$

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My brain doesn't feel like working today ;-;I just need the equation, not the answer

C = 0.765x + 0.06(0.765x)

Answers

Hey there!

$c=0.765x+0.06(0.765x)$

Add:

$c=0.765x+0.06(0.765x)\nc=0.8109x$

Hope this helps!

$AT2309$

What 2 numbers add up to get 17 and multiply to get -200

Answers

There is no fixed equation when I arrived at these numbers.

I just did trial and error. I came up with 25 and -8 as the numbers.

200 ÷ 25 = 8 ⇒ the sum of 17 depends on the signs of each numbers.

-8 x 25 = -200

-8 + 25 = 17

How many real number solutions does the equation have?-8x^2-8x-2=01
2
no solutions
or
infinitely many solutions

solve the equation by completing the square. round to the nearest hundredth. x^2+6x=-7
4.41,1.59
-4.41,1.59
-4.41,-1.59
4.41,-1.59

and the last one is
solve the systems of equations algebraically. show all of your steps.
y=x^2+2x
y=3x+20

Answers

Hello,

I)
1 solution with multiplicity 2
(2x+1)²=0

II) ANSWER C (-4.41, -1.59)
-3-√2 and -3+√2

III)
y=x²+2x
y=3x+20
==>x²+2x=3x+20
==>x²-x-20=

Δ=1+4*20=81=9²

(x=(1-9)/2=-4 and y= 3*(-4)+20=8 ) or (x=(1+9)/2=5 and y=3*5+20=35)

The mass of a computer

Answers

the mass of a computer uses kilogram (kg) so the weight of a computer is between .68 kg and .73... Hope it helps ur out..

Three roads intersect to form a large triangular area as shown below.-5 miles
300
What is the length, to the nearest tenth of a mile, of side x of the triangle?
O A. 2.5 miles
O B. 2.9 miles
O C. 4.0 miles
O D. 4.3 miles

Answers

Answer:

b i think

Step-by-step explanation:

I think your correct answer is B

Image 1
____________________________________________
image 2

Answers

cosine of angle F = adjacent side / hypotenuse
Cosine of angle F = 60/61 Option C

In image 2, we have to find out the adjacent side
adjacent side =√ 41² - 40² = √81 = 9

Cosine of angle X = 9/41
Option C

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