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3 years ago

Please helps ……………………

Mathematics

1 answer:

steposvetlana [31]3 years ago

3 0

Answer:

V= 21.7

Step-by-step explanation:

180-90=90

2v+v+25=90

3v+25=90

3v=65

V=21.7

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The parallelograms below are similar.

Alexxx [7]

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Answer:

AB = 4

∠E = 30°

Step-by-step explanation:

Side AD is 4 times the length of corresponding side EH, so we expect side AB to be 4 times the length of side EF.

AB = 4·EF = 4·1

AB = 4

Angle E will have the same measure as corresponding angle A.

angle E = 30°

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3 years ago

What is the simplified form of the following expression?

Anna71 [15]

Answer:

Step-by-stes 32 p explanation:

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3 years ago

A cube has side length x. One side of the cube is increased by 4 inches, and another side is doubled. The volume of the new rect

AfilCa [17]

Let

x-------> the length side of the original cube

we have

$2x^{3} +8x=450\\2x^{3}=450-8x$

Divide by $2$ both sides

$x^{3}=225-4x$

The system of equations is equal to

$y=x^{3}$ --------> equation $1$

$y=225-4x$ --------> equation $2$

using a graphing tool

see the attached figure

we know that

the solution of the system of equations is the intersection both graphs

therefore

the solution is

$x=5.86\ in$

therefore

<u>the answer is</u>

$5.86\ inches$

6 0

4 years ago

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F is directly proportional to a. If F=36 when a=9 , find F when a=4

kicyunya [14]

Step-by-step explanation:

f=ka

36=9k

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f=4×4

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8 0

2 years ago

How many extraneous solutions exist for the logarithmic equation below if it is solved in the most efficient way possible?log_(2

Nadusha1986 [10]

Answer:

No extraneous solution

Step-by-step explanation:

We have the logarithmic equation given by,

$\log_{2}[\log_{2}(\sqrt{4x})]=1$

i.e. $\log_{2}(\sqrt{4x})=2^{1}$

i.e. $\sqrt{4x}=2^{2}$

i.e. $\sqrt{4x}=4$

i.e. $4x=4^{2}$

i.e. $4x=16$

i.e. $x=4$

So, the solution of the given equation is x=4.

Now, as we domain of square root function is x > 0 and also, the domain of logarithmic function is $( 0,\infty )$ .

Therefore, the domain of the given function is x > 0.

We know that the extraneous solution is the solution which does not belong to the domain.

But as x=4 belongs to the domain x > 0.

Thus, x = 4 is not an extraneous solution.

Hence, this equation does not have any extraneous solution.

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3 years ago

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