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Masja [62]
3 years ago
6

Please help me please answer it correctly please answer it correctly

Mathematics
2 answers:
lesya [120]3 years ago
5 0

Answer:

B

Step-by-step explanation:

=3+(-7)

=3-7

As 3 is a positive number(+), it is referred as it gained yards. 7 is referred as lost yards because it's a negative number(-).

Hope this will help ya!

Shalnov [3]3 years ago
4 0

Answer:

b

Step-by-step explanation:

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I need a solution<br><img src="https://tex.z-dn.net/?f=2log_%7Bx%7D25%20-%203%20log_%7B25%7Dx%20%3D%201" id="TexFormula1" title=
Korvikt [17]
Given
2log_x(25)-3log_{25}(x)=1

first, convert 2log_x(25) to base 25 to match the other term.
2log_x(25)
=2log_{25}(25)/log_{25}(x)
=2*1/log_{25}(x)

Substitute above identity into original equation:
2/log_{25}(x)-3log_{25}(x)=1

Use substiution u=log_{25}(x)
above equation becomes
2/u-3u=1
multiply by u and solve for u:
3u^2+u-2=0
=> u=2/3 or u=-1

case A:. u=2/3 =>
log_{25}(x)=2/3 => 25^{2/3}=x  =>
x=25^{2/3} =8.54987973338348 (approx.)

case B: u=-1 =>
log_25(x)=-1 
which does not give a real solution, so reject.

See graph below for confirmation of solution.

3 0
4 years ago
grace spent 4 1/2 hours restoring this time makes up 6% of the time needed how much time is needed to fully restore the boat
11Alexandr11 [23.1K]
4.5h=6t/100

6t=100(4.5h)

t=100(4.5h)/6

t=75

It takes a total of seventy-five hours to restore the boat. 
8 0
3 years ago
Read 2 more answers
Please help please and thank you
zhuklara [117]

Answer:

i think the answer is   _>

Step-by-step explanation:

where is the x ?

7 0
2 years ago
Your class wants to know to most typical age of student in your class. It collects the ages of all students and the teacher. Whi
dem82 [27]

Answer:

Median.

Step-by-step explanation:

Assuming the teacher is not of similar age to the students, their higher age would pull the mean higher than if the teacher were not included, where  the median would not be pulled by this extreme value.

3 0
3 years ago
Find the length of the third side to the nearest tenth.<br> 8<br> 5
brilliants [131]

Answer:

The length of third side is: 6.3

Step-by-step explanation:

Given triangle is a right triangle where

Base = ?

Perpendicular = 5

Hypotenuse = 8

Let x be the base

As it is a right-angled triangle, Pythagoras theorem can be used to find the third side

Hypotenuse^2 = Base^2 + Perpendicular^2

Putting the known values

(8)^2 = x^2 + (5)^2\\x^2 = (8)^2-(5)^2\\x^2 = 64-25\\x^2 = 39\\

Taking square root on both sides

\sqrt{x^2} = \sqrt{39}\\x = 6.24499

Rounding off to the nearest 10th

Base = 6.3

Hence,

The length of third side is: 6.3

6 0
3 years ago
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