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baherus [9]
2 years ago
15

Use the distributive property to find (y+6)(y+4)​

Mathematics
1 answer:
____ [38]2 years ago
3 0

Answer:

Look down below for the answer :))

Step-by-step explanation:

y + 6 = 6y

y + 4 = 4y

4y x 6y = 24y

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2 cos ^2 x -cos x -1 =0

factor

(2 cos x+1) ( cos x -1) = 0

using the zero product property

2 cos x+1 =0    cos x -1 =0

2 cos x = -1       cos x =1

cos x = -1/2       cos x=1

taking the arccos of each side

arccos cos x = arccos (-1/2)         arccos cos x = arccos 1

x = 120 degrees   x=-120   degrees           x=0

remember you get 2 values ( 2nd and 3rd quadrant)

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3 years ago
The students lockers at a college are to be numbered consecutively form 1 to 800 using plastic digits. Each digit cost 10c. What
KIM [24]
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6 0
3 years ago
Which quadratic function in vertex form can be represented by the graph that has a vertex at (3, -7) and passes through the poin
yarga [219]

~~~~~~\textit{vertical parabola vertex form} \\\\ y=a(x- h)^2+ k\qquad \begin{cases} \stackrel{vertex}{(h,k)}\\\\ \stackrel{"a"~is~negative}{op ens~\cap}\qquad \stackrel{"a"~is~positive}{op ens~\cup} \end{cases} \\\\[-0.35em] ~\dotfill

\begin{cases} h=3\\ k=-7 \end{cases}\implies y=a(x-3)^2-7\qquad \textit{we also know that} \begin{cases} x=1\\ y=-10 \end{cases} \\\\\\ -10=a(1-3)^2-7\implies -3=a(-2)^2\implies -3=4a\implies -\cfrac{3}{4}=a \\\\[-0.35em] ~\dotfill\\\\ ~\hfill y=-\cfrac{3}{4}(x-3)^2-7~\hfill

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7 0
2 years ago
Read 2 more answers
3x + 4y = 8<br> Is it linear? If so how do I graph it
VikaD [51]
Yes it is linear
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I am attaching pic of graph
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Y intercept is (0,2)

8 0
2 years ago
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