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vivado [14]
3 years ago
12

15 POINTS!!!!

Mathematics
2 answers:
zloy xaker [14]3 years ago
8 0

Answer:

<h2>The answer is B. (x-2)</h2>

Step-by-step explanation:

First simplify the equation (2x-3)-(x-1)

=(2x-3)-x+1

=(2x+3)-x-1

=2x-3-x-1

=x-2

RSB [31]3 years ago
7 0
It should be x-4 when you get rid of the parenthesis 2x-1=x and -3-1=-4
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Which expression is equivalent to -9x^-1y^-9/-15x^5/y^3? Assume x=0,y=0
Juliette [100K]

Answer:

B

Step-by-step explanation:


8 0
3 years ago
The probability of winning the shell games if you randomly pick is 1 in 3. What would be the approximate probability of winning
erastova [34]

Answer:

1 /81

Step-by-step explanation:

1/3 * 1/3 * 1/3 * 1/3 (One for each game) = 1/81

6 0
4 years ago
A rectangular storage container with an open top is to have a volume of 10 m3. The length of this base is twice the width. Mater
marshall27 [118]

Answer:

$ 327.08

Step-by-step explanation:

Let x = width of the container,

Then Length of the container = 2x

Let h = height of the container,

volume of the container can be calculated as length × width × height

= 2x × x × h

= 2x² h

Then we can say Volume =

= 2x² h=10

If we simplify inorder to get h

We have h= 5/x²

Then the area= (2L×h) +(2xh)

Where L is lenght

x= wish

h= height

= 2× 2x × h+ x× h

= 4x× 5/x + 2x × 5/x

Area = 30/x

Now, the area of the base = length × width

But from question, for the base costs $20 per square meter. Material for the sides costs $12 per square meter

Then the cost C(x)= 2x²× 20+30/x ×12

C(x)= 40x²+35/x²

If we differenciate wrt x we have

C(x)= 80-360/x²

If we equate C(x)=0the

80=360/x²

x= 1.651

If substitute to C(x)= 40x²+35/x²

C(x) = 40(1.651)² + 35/(1.651)²

We have cost= 327.08

6 0
3 years ago
Which of the following points does not lie on the graph of y=5x-5?<br> (0-5)<br> (1.0)<br> (-5.0)
mojhsa [17]
Y=5x-5
0=5x-5
-5x=-5

X=1
8 0
3 years ago
Bill and Amy want to ride their bikes from their neighbourhood to school which is 14.4 kilometers away. It takes Amy 40 minutes
olga55 [171]
You can use the equation d=rt
Amy 14.4=40r    r=0.36 kilometers/minute
Bill 14.4=20r    r= 0.72 kilometers/minute   
Amy (0.36 kilometers/minute)(60 seconds/1000 meters)= 0.0216 meters/second
Bill (0.72 kilometers/minute)(60 seconds/1000 meters)=0.0432 meters/second

0.0432-0.0216=0.0216 meters/second faster than Amy
3 0
3 years ago
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