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erik [133]
3 years ago
15

Please help

Mathematics
2 answers:
aalyn [17]3 years ago
3 0

Step-by-step explanation:

4(2a + 5) that's the answer

solniwko [45]3 years ago
3 0
The correct solution would cue the second option - 4(2a + 5).
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I think the answer is D ?
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2 years ago
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H deposited $ 7,500 into a bank account. At the end of 3 years, the account had earned $900 in simple intrest. What rate of intr
sertanlavr [38]
B, 4% .


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4 0
3 years ago
Use addition to solve the linear system of equations. Include all of your work in your final answer. \(\left\{ \right.\) 3x-y=6
ad-work [718]

Answer:

Solving the given linear system, we get x = 1 and y = -3.

The solution set is: (1,-3)

Step-by-step explanation:

We need to solve the linear system of equations.

3x-y=6 \\y=x-4

We can write second equation y=x-4  as: -x+y=-4

Let:

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3x-y=6\\ -x+y=-4\\--------\\2x+0y=2\\2x=2\\x=\frac{2}{2}\\x=1

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Now, put value of x in second equation to find value of y:

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So, we get y = -3

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4 0
3 years ago
The product of two numbers is 192. what is the minimum value of the sum of the first value plus twice the second value
VARVARA [1.3K]
Let x and y be the two positive numbers. -  Their product is 192: x *  y  =  192   equation 1

-  the sum of the first plus twice the second is a minimum:  x + 2y

<span>From the first equation, y =  192 / x. 
Substitute that into the second equation:
</span>
 x + 2y = x + 2(<span>192/x ) = x + 384/x

</span>f(x) is minimum when f'(x) = 0 and f"(x) > 0 

f(x)= <span>x + 384/x
</span>
f(x) = 1-384/x^2 

<span>1-384  / x^2 =  0 

x^2-384 = 0 

x^ 2= 354
 x = radical  354    = 18.8  here i'm confused why the number is decimal
???/ 
</span>

4 0
3 years ago
Select the correct answer.
Nana76 [90]

Answer:

d

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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