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notsponge [240]
2 years ago
6

PLS HELP GIVEN BRAINIEST ANSWER !!!!

Mathematics
1 answer:
ASHA 777 [7]2 years ago
7 0

Answer:

65.45

Step-by-step explanation:

multiply 77 by 0.15 then substract that answer from 77 to get how long the video was after the cut.

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16-5(3t-4)=8(-2t+11) How to Solve
Hunter-Best [27]

16 - 5(3t - 4) = 8(-2t + 11)        <em>use distributive property</em>: <em>a(b + c) = ab + ac</em>

16 - (5)(3t) - (5)(-4) = (8)(-2t) + (8)(11)

16 - 15t + 20 = -16t + 88

36 - 15t = -16t + 88      <em>subtract 36 from both sides</em>

-15t = -16t + 52            <em>add 16t to both sides</em>

t = 52

5 0
3 years ago
1(x-2)= -5.5 solving for x. What's the answer
Lapatulllka [165]

Answer:

x = -3.5

Step-by-step explanation:

1(x-2) = -5.5

x-2 = -5.5

 +2    +2

x = -3.5

3 0
3 years ago
[Geometry Basics] I'm just checking if this is correct:
Leno4ka [110]
\bf ~~~~~~~~~~~~\textit{middle point of 2 points }&#10;\\\\&#10;\begin{array}{ccccccccc}&#10;&&x_1&&y_1&&x_2&&y_2\\&#10;%  (a,b)&#10;&&(~ x &,& y~) &#10;%  (c,d)&#10;&&(~ -9 &,& -1~)&#10;\end{array}\qquad&#10;%   coordinates of midpoint &#10;\left(\cfrac{ x_2 +  x_1}{2}\quad ,\quad \cfrac{ y_2 +  y_1}{2} \right)&#10;\\\\\\&#10;\left( \cfrac{-9+x}{2}~~,~~\cfrac{-1+y}{2} \right)=\stackrel{midpoint}{(8,14)}\implies &#10;\begin{cases}&#10;\cfrac{-9+x}{2}=8\\\\&#10;-9+x=16\\&#10;\boxed{x=25}\\&#10;-------\\&#10;\cfrac{-1+y}{2} =14\\\\&#10;-1+y=28\\&#10;\boxed{y=29}&#10;\end{cases}

\bf -------------------------------\\\\&#10;\begin{array}{ccccccccc}&#10;&&x_1&&y_1&&x_2&&y_2\\&#10;%  (a,b)&#10;&&(~ x &,& y~) &#10;%  (c,d)&#10;&&(~10 &,& 12~)&#10;\end{array}\qquad&#10;\\\\\\&#10;\left( \cfrac{10+x}{2}~~,~~\cfrac{12+y}{2} \right)=\stackrel{midpoint}{(6,9)}\implies &#10;\begin{cases}&#10;\cfrac{10+x}{2}=6\\\\&#10;10+x=12\\&#10;\boxed{x=2}\\&#10;-------\\&#10;\cfrac{12+y}{2} =9\\\\&#10;12+y=18\\&#10;\boxed{y=6}&#10;\end{cases}
3 0
3 years ago
A parallelogram is shown below. Which equation best represents the formula for the area of the parallelogram?
adell [148]

The area of a parallelogram is length x height.

The answer would be C. A = 12 • 8

7 0
3 years ago
OOOO
lbvjy [14]

Step-by-step explanation:

Given bi-quadratic equation is:

x^4+95x^2 -500=0

Substituting x^2=a, given bi-quadratic equation reduces in the form of following quadratic equation:

a^2 +95a -500=0\\

Let us factorize the above quadratic equation:

a^2 +95a -500=0\\\therefore\: a^2 +100a -5a-500=0\\\therefore\: a(a +100) -5(a+100)=0\\\therefore\: (a +100)(a -5)=0\\\therefore\: (a +100)=0\:\: or \:\: (a -5)=0\\\therefore\: a = - 100\:\: or \:\: a = 5\\\\CASE\: (1)\:\\When\: a = - 100 \implies x^2 = - 100\\\therefore x=\pm \sqrt{-100}\\

Since square root of a negative number cannot be found, so:

x \neq \pm \sqrt{-100}\\

CASE\: (2)\:\\When\: a =5 \implies x^2 =5\\\therefore x=\pm \sqrt{5}\\

3 0
3 years ago
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