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Tamiku [17]
3 years ago
12

Can someone please do these!!

Mathematics
2 answers:
Wewaii [24]3 years ago
7 0
For number 2. The answer is $6.49
marusya05 [52]3 years ago
5 0

Answer is attached below. Hope this helps.

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Which property was used to simplify the expression?
Montano1993 [528]

Answer:

inverse i believe, because the numbers are switched around on the right side of the equal sign.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What equation represents the model shown below?
g100num [7]

Given:

The algebra tiles of an equation.

To find:

The equation represented by the given model.

Solution:

On the left side of the model we have 4 tiles of (-x) and 3 tiles of (-1). So,

LHS=(-x)+(-x)+(-x)+(-x)+(-1)+(-1)+(-1)

LHS=-4x+(-3)

LHS=-4x-3

On the right side of the model we have 8 tiles of (-1). So,

RHS=(-1)+(-1)+(-1)+(-1)+(-1)+(-1)+(-1)+(-1)

RHS=-8

Now, equate the LHS and RHS to get the equation.

-4x-3=-8

Therefore, the equation for the given model is -4x-3=-8.

7 0
2 years ago
4 2/9 as a decimal work shown
Xelga [282]
The Answer Is:<span>4.222222</span>

4 2/9 = 4 + 2/9

= 4/1 + 2/9

= (4/1 * 9/9) + 2/9

= 36/9 + 2/9

= 38/9

= 38 ÷ 9 = 4.222222
4 0
2 years ago
A metal cube contracts when it is cooled. if the edge of the cube is decreasing at a rate of 0.2 cm/hr, how fast is the volume c
aleksandr82 [10.1K]

Answer:

2160 cm³/hour

Step-by-step explanation:

By default, we know that the volume of a cube is given as s³

Thus, the Volume function, V = s³

When we differentiate with respect to time we have

dV/dt = 3s² (ds/dt), where ds/dt = 0.2

Then we go ahead and substitute all the given parameters

dV/dt = 3 x 60 x 60 x 0.2

dV/dt = 10800 * 0.2

dV/dt = 2160 cm³/hour

This means that the volume decreases by a rate of 2160 cm³/hour at the instant its edge is 60 cm

7 0
2 years ago
PLEASE HELP with this math
Anastasy [175]
Answer:

Distance = 5

Step-by-step explanation:



7 0
2 years ago
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