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Nadya [2.5K]
2 years ago
15

Which expression simplies to 40x10?

Mathematics
2 answers:
LuckyWell [14K]2 years ago
8 0

Answer:

i think its 4*1

Step-by-step explanation:

hope this helps

have a great day

~Zero~

Phantasy [73]2 years ago
8 0

Answers

Explainations

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If a square has the perimeter of 15.2 centimeters, what are 2 equations that can determine the perimeter of the square?
astraxan [27]

Answer:

1) P=4s

2) P=4\sqrt{A}

see the explanation

Step-by-step explanation:

we know that

The perimeter of the square is equal to

P=4s

where

s is the length side of the square

we have

P=15,2\ cm

substitute

15.2=4s

solve for s

s=15.2/4=3.8\ cm

The area of a square is equal to

A=s^2

substitute

A=3.8^2=14.44\ cm^2

we have that

s=\sqrt{A}

therefore

2 equations that can determine the perimeter of the square are

1) P=4s ----> P=4(3.8)=15.2\ cm

2) P=4\sqrt{A} ----> P=4\sqrt{14.44}=15.2\ cm

4 0
3 years ago
CAN u please aw ser like please
katovenus [111]
Franny: 2.849 tons is the answer
7 0
3 years ago
Read 2 more answers
At what point does the curve have maximum curvature? y = 9 ln(x) (x, y) =
Andrews [41]

y = 9ln(x) 
<span>y' = 9x^-1 =9/x</span>
y'' = -9x^-2 =-9/x^2

curvature k = |y''| / (1 + (y')^2)^(3/2) 

<span>= |-9/x^2| / (1 + (9/x)^2)^(3/2) 
= (9/x^2) / (1 + 81/x^2)^(3/2) 
= (9/x^2) / [(1/x^3) (x^2 + 81)^(3/2)] 
= 9x(x^2 + 81)^(-3/2). 

To maximize the curvature, </span>

we find where k' = 0. <span>
k' = 9 * (x^2 + 81)^(-3/2) + 9x * -3x(x^2 + 81)^(-5/2) 
...= 9(x^2 + 81)^(-5/2) [(x^2 + 81) - 3x^2] 
...= 9(81 - 2x^2)/(x^2 + 81)^(5/2) 

Setting k' = 0 yields x = ±9/√2. 

Since k' < 0 for x < -9/√2 and k' > 0 for x > -9/√2 (and less than 9/√2), 
we have a minimum at x = -9/√2. 

Since k' > 0 for x < 9/√2 (and greater than 9/√2) and k' < 0 for x > 9/√2, 
we have a maximum at x = 9/√2. </span>

x=9/√2=6.36

<span>y=9 ln(x)=9ln(6.36)=16.66</span>  

the answer is
(x,y)=(6.36,16.66)
7 0
3 years ago
At the beginning of the week, a puppy weighed 5 1/4 pounds. During the week, the puppy gains 8 ounces.
lys-0071 [83]

Answer:

5 3/4

Step-by-step explanation:

8 ounces is half (1/2) of a pound

1/2 is equivalent to 2/4

So I added 5 1/4 and 2/4

Which gives us 5 3/4

5 0
3 years ago
Help please, be sure your right.
Zarrin [17]

Answer:

Step-by-step explanation:

<u><em>System A and System B are </em></u><u><em>not equivalent</em></u> !!!  

4 0
3 years ago
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