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Alexxx [7]
2 years ago
12

Solve for x and show your steps. Is the solution extraneous? Check your work to show how you determined if the solution is extra

neous or not.
The square root of the quantity 2 x minus 7 end quantity equals 1.
Mathematics
2 answers:
natima [27]2 years ago
7 0

Answer:

x = 32

Step-by-step explanation:

Add 7 to both sides

\sqrt{2x} -7+7=1+7

Simplify

-7 + 7 = 0 and 1 + 7 = 8 because of this now \sqrt{2x} =8

Square both sides

2x = 64

Slove 2x = 64

64 ÷ 2 = 32 = x

balu736 [363]2 years ago
7 0

Answer:

x=32

Step-by-step explanation:

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The minute hand of a clock is exactly 6in in length, and the tip of the minute hand has traveled ten inches since noon. What tim
frutty [35]
\bf \textit{arc's length}\\\\
s=\cfrac{\theta \pi r}{180}\qquad 
\begin{cases}
r=radius\\
\theta =angle\ in\\
\qquad degrees\\
------\\
r=6\\
s=10
\end{cases}\implies 10=\cfrac{\theta \pi 6}{180}\implies \cfrac{180\cdot 10}{6\pi }=\theta 
\\\\\\
\cfrac{300}{\pi }=\theta \implies 95.49^o\approx \theta

now, the circle of the clock has 360°, if we divide it by 60(minutes), we get 360/60, just 6° for each minute.

now, if there are 6° in 1 minute, how many minutes in 95.49°?

well, just 95.49/6 or about 15.92 minutes, I take it you can round it up to 16 minutes.

so 16 minutes since noon, so is about 12:16, about time get the silverware for lunch.
3 0
3 years ago
-4(y - 2) = 12<br><br> solve for y, thanks
andrezito [222]

Answer:

-1

Step-by-step explanation:

-4(y-2)=12

-4y+8=12

-4y=4

y= -1

8 0
3 years ago
Read 2 more answers
688×29=<br>how to do this step by stwp
laila [671]

688

x 29

  6192  

1376 x  

19952


So you start by taking 9 from 29 and multiplying it by 688. when you get the answer put it below the line. then multiply the 2 from the 29 and whne you get the answer put a zero on the end and then add the answer you got from 9x688  (6192) and 2x688 (13760) and then thats youre answer. hope it helps!

8 0
3 years ago
kylie opened a bank account. she deposited 76.50 into her account every month for 10 months. she used 30.50 every month to pay f
topjm [15]
The total amount of money Kylie spent to go to talent camp is 115. 

76.5 *10 =765 (Amount of money she deposited in 10 months)
30.5 *10 = 305 (Amount of money she used to pay for singing lessons in 10 months)
765 - 305 = 460 (Amount remaining after singing lessons for 10 months)
460/4 = 115 (Amount she used to go to a talent camp)
5 0
3 years ago
A girl cut off 2/5 of a ribbon. The piece she cut off was 5 meters long.How
valentinak56 [21]

Answer:

12.5

Step-by-step explanation:

5/2*5=12.5

7 0
3 years ago
Read 2 more answers
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