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LuckyWell [14K]
3 years ago
10

It takes you 0.8 of a minute to read each page of your health book. It takes you 5.5 minutes to take the test at the end. How lo

ng will it take you to read 6.25 pages and also take the test?
Mathematics
1 answer:
miss Akunina [59]3 years ago
4 0
What do you need to know?
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Abby used the quadratic formula to find the zeros of the
MArishka [77]

Step 2: She did not simplify under the square root correctly

under the square root:

(-6)^2 =36

and -4(5)(-8) =160

therefore under the square root it needs to be square root of 36+160 which is square root of 196.

That answer is 14 when square rooted

5 0
2 years ago
Read 2 more answers
How many dimes would you need to make $90.10
noname [10]
If a dime equals 10¢, and 10 dimes equals 100¢ (or $1) you need to divide.
$90.10/10¢=90.1 dimes you need I think.

Hope this helps
3 0
3 years ago
Which equation is equivalent to the formula d = rt?<br>r = d/t<br>r = dt<br>t = r/d<br>t = dr​
Allisa [31]

Step-by-step explanation:

d = rt

divide t

d/t = r

r = d/t

6 0
3 years ago
Help plssss no links or files or i will report
ra1l [238]

Answer: 350/12

I think 29 2/12 can be also true because they didn't simplify the 2/12 to 1/6.

Step-by-step explanation:

You'll have to use the basic formula for volume is length × width × height. The sample box has the area of 23 1/3 which is found by length x width. They give you the height 1 1/4. I am assuming you will need to multiply 23 1/3 by 1 1/4. You'll get 350/12.

If it's simplify further it will be 175/6 or 29 1/6 as a mixed fraction.

7 0
3 years ago
Solve 2cos x+2cos 2x=0 on the interval [0,2pi)
rjkz [21]
2cosx+2cos2x=0 \\ -2sin^2x+2cos^2x+2cosx=0 \\ -2(1-cos^2x)+2cos^2x+2cosx=0 \\ -2+2cos^2x+2cos^2x+2cosx=0 \\ 4cos^2x+2cosx-2=0 \\ t=cos x \\ 4t^2+2t-2=0 \\ \Delta=4+32=36 \\ t_1= \frac{-2-6}{8}=-1 \\ t_2= \frac{-2+6}{8}= \frac{1}{2}  \\ cos x=-1 \lor cos x= \frac{1}{2}    \\ x=-\pi \lor x= \frac{5\pi}{3}
6 0
3 years ago
Read 2 more answers
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