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Allushta [10]
3 years ago
7

F(x) = 9-3x g(x) = 5x-7 Find f(x)+g(x).

Mathematics
1 answer:
Bezzdna [24]3 years ago
8 0

Answer:

In the problem, the sum of the two functions is 2x + 2

Step-by-step explanation:

For this problem, we have to add together f(x) and g(x).

<em>f(x) = 9 - 3x</em>

<em>g(x) = 5x - 7</em>

(f + g)(x) = (9 - 3x) + (5x - 7)

Combine like terms.

(f + g)(x) = 2x + 2

So, when you combine the two functions together, you will get 2x + 2.

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0.6x-0.1=0.5x+2 <br> The solution set is {_} <br><br> PLEASE PLEASE PLEASE EXPLAIN HOW
timurjin [86]

Answer:

21

Step-by-step explanation:

Step 1:

0.6x - 0.1 = 0.5x + 2      Equation

Step 2:

0.1x - 0.1 = 2     Subtract 0.5x on both sides

Step 3:

0.1x = 2.1     Add 0.1 on both sides

Step 4:

x = 2.1 ÷ 0.1    Divide

Ansewr:

x = 21

Hope This Helps :)

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5<br> 8<br> y<br> Find the exact value of y.<br> y =
inn [45]

Answer:

y=2\sqrt{10}

Step-by-step explanation:

By applying geometric mean theorem in the given right angle,

\frac{AD}{DB}=\frac{DB}{CD}

By substituting values in the given ratio,

\frac{5}{y}= \frac{y}{8}

y^2=8\times 5

y^2=40

y=2\sqrt{10}

Exact value of y is 2\sqrt{10}.

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3 years ago
Wasani was playing Jeopardy. In this game of Jeopardy, players earn 50 points for a correct response and lose 50 points for an i
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What basic trigonometric identity would you use to verify that
Dafna1 [17]

Given the equation:

\frac{\sin^2x+\text{cos}^2x}{\cos x}=\sec x

Let's determine the trigonometric identity that you could be used to verify the exquation.

Let's determine the identity:

Apply the trigonometric identity:

\sin ^2x+\cos ^2x=1

\cos x=\frac{1}{\sec x}

Replace cosx for 1/secx

Thus, we have:

\begin{gathered} \frac{\sin^2x+\cos^2x}{\frac{1}{\sec x}} \\  \\ =(\sin ^2x+\cos ^2x)(\sec x) \\ \text{Where:} \\ (\sin ^2x+\cos ^2x)=1 \\  \\ We\text{ have:} \\ (\sin ^2x+\cos ^2x)(\sec x)=1\sec x=\sec x \end{gathered}

The equation is an identity.

Therefore, the trignonometric identity you would use to verify the equation is:

\cos ^2x+\sin ^2x=1

ANSWER:

\cos ^2x+\sin ^2x=1

6 0
1 year ago
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