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2 years ago

Solve each equation. Check your solution. 3(n - 7) = -30

Mathematics

2 answers:

weqwewe [10]2 years ago

6 0

I agree with n as -3 & 3(-3-7)=-30

uranmaximum [27]2 years ago

5 0

3(n-7)=-30
3n-21= -30
3n = -9
n= -3

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A scientist has saline solutions with concentrations of 4% and 14% . He wants to mix some of each solution to get 65 milliliters

Komok [63]

Let volume of 4% solution = x and of 14% be y

them x + y = 65........(1) also using the actual weights of salt:-

0.04x + 0.14y = 65*0.06 = 3.9

multiplying the above equation by -25 we have

-x - 3.5y = -97.5 adding this to equation (1)

--2.5y = -32.5
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and x = 65 - 13 = 52

so we need 13 mls of the 14%, and 52 mls of the 4% solution.

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2 years ago

The function h(x) is a transformation of the square root parent function,

kondaur [170]

Answer:

A. $h(x)=\sqrt{x-3}$

Step-by-step explanation:

<h3>Step 1: Definition</h3>

The parent function of $\sqrt{x}$ is translated to the left when $h$ is positive in the transformation $\sqrt{x+h}$ .

If $h$ is negative, the graph translates towards the left with the distance equal to the value of $h$ .

<h3>Step 2: Implementation</h3>

Here the graph moved 3 units towards the right. This means that $h$ is negative and has the value of 3.

So, plugging that into the parent function for translation, the function becomes:

$h(x)=\sqrt{x-3}$

8 0

2 years ago

Simplify question 2 please ASAP !!!!

Mrrafil [7]

Answer:

$\sqrt[3]{ - 0.125} = \sqrt{ - 1} \times \sqrt[3]{0.125 } \\ = 5i$

here i equals √-1

Step-by-step explanation:

Answer is 5i

If you have any doubts write in comments box.

HAVE A NICE DAY !

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2 years ago

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kherson [118]

Answer:

200

Step-by-step explanation:

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so for H = 14

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3 years ago

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frez [133]

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Thus the total area that Gideon will have to paint for one square pyramid is 56 in^2.

6 0

3 years ago