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Monica [59]
3 years ago
12

Find the value of the variable.

Mathematics
2 answers:
Dmitry_Shevchenko [17]3 years ago
7 0

Answer: 11

Step-by-step explanation: add 139 to 40 and subtract that from 180 the number is the missing variable

Scrat [10]3 years ago
5 0
Answer :

It is 40 i believe
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Evaluate the expression<br> 7+10√1/25
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The answer is 9

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2 years ago
An engineer is designing a storage compartment in a spacecraft .The compartment must be 2 meters longer than it is wide, and its
serg [7]

Answer:

Let x be the width of the compartment,

Then according to the question,

The length of the compartment = x + 2

And the depth of the compartment = x -1

Thus, the volume of the compartment,  V = (x+2)x(x-1) = x^3 + x^2 - 2x

But, the volume of the compartment must be 8 cubic meters.

⇒ x^3 + x^2 - 2x = 8

⇒ x^3 + x^2 - 2x - 8=0

⇒ (x-2)(x^2+3x+4)=0

If x-2=0\implies x = 2 and if  x^2+3x+4=0\implies x = \text{complex number}

But, width can not be the complex number.

Therefore, width of the compartment = 2 meter.

Length of the compartment = 2 + 2 = 4 meter.

And, Depth of the compartment = 2 - 1 = 1 meter.

Since, the function that shows the volume of the compartment is,

V(x) = x^3 + x^2 - 2x

When we lot the graph of that function we found,

V(x) is maximum for infinite.

But width can not infinite,

Therefore, the maximum value of V(x) will be 8.




8 0
3 years ago
Read 2 more answers
Rectangular Prism<br> Rectangular Pyramid<br> Cylinder<br> Cone<br> ?????
Liono4ka [1.6K]
If it’s rotating around something, it’s most likely a cylinder I believe
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3 years ago
Line ℓ1 has the equation
aleksley [76]

Answer:

\sqrt{2} units

Step-by-step explanation:

The Line 1 has equation x + y = 5 ....... (1) , and  

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Now, we have to find the perpendicular distance between line 1 and line 2.

We can say that (3,0) is a point on line 2 as it satisfies the equation (2).

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\frac{|3 + 0 - 5|}{\sqrt{1^{2}+ 1^{2}}} = \frac{2}{\sqrt{2}} = \sqrt{2} units (Answer)

We know that the perpendicular distance from any external point (x_{1},y_{1}) to a given straight line ax + by + c = 0 is given by the formula \frac{|ax_{1} + by_{1} + c|}{\sqrt{a^{2} + b^{2}}}.

3 0
3 years ago
Find two numbers that multiply to 16 and also add to -8
mash [69]

Answer:

-4,-4

Step-by-step explanation:

let the numbers be x and y.

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(x+4)(x+4)=0

x=-4,-4

5 0
3 years ago
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