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PSYCHO15rus [73]
3 years ago
10

Is x = -3 a solution to 5x + 2 = -4x + 5?

Mathematics
1 answer:
MaRussiya [10]3 years ago
7 0

Step-by-step explanation:

5(-3) + 2 = (-15) + 2 = -13.

-4(-3) + 5 = 12 + 5 = 17.

Since -13 ≠ 17, x = -3 is not a solution.

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A line passes through the point (0, –1) and has a slope of -2/3 What is the equation of the line?
Troyanec [42]
The slope formula:
y=mx+b
m - a slopeb - y-intercept
We have:
m=-\dfrac{2}{3} and point (0;-1)\to b=-1
Substitute:
y=-\dfrac{2}{3}x-1
Answer: A.

6 0
3 years ago
H(x) = 1/3x - 1 if h (15)
dalvyx [7]

Answer:

(

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∘

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is known as a composite function. Here's how composite functions work:

let's say that  

x

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1

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now produces a  

y

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, since  

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=

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3

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g

(

1

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=

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3

⇒

f

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1

3

)

=

17

3

⇒

h

(

17

3

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=

17

Therefore,

(

h

∘

f

∘

g

)

(

1

)

=

17

Based on this, to find the function for  

(

h

∘

f

∘

g

)

(

x

)

(combined from right to left, by the way), simply replace  

x

in  

f

(

x

)

with the function  

g

(

x

)

, and replace  

x

in  

h

(

x

)

with the function of  

(

f

∘

g

)

(

x

)

, to get  

(

h

∘

f

∘

g

)

(

x

)

.

This, simplified, is equal to  

2

x

+

15

, and therefore  

(

h

∘

f

∘

g

)

(

1

)

=

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1

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+

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=

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Hope that helps!

5 0
3 years ago
Please help me with this question!!!!
elixir [45]

Answer:

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5 0
4 years ago
Your paycheck (before deductions) various directly as the number of hours you work.If your paycheck is $259.20 for 27 hours, fin
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5 0
4 years ago
What is the solution to the inequality
Dvinal [7]

Answer:

p > 5 and p <-8

Step-by-step explanation:

To solve this, you first need to isolate p.

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Then subtract 3 from both sides of the equation.

2p+3-3>13-3\\\\2p > 10\\

The divide both sides by 2.

\dfrac{2p}{2}>\dfrac{10}{2}\\\\p>5

Another solution is possible because of the absolute value.

If |2p+3|>13

Then |2p+3|

<em>Thus we can solve the second solution:</em>

|2p+3|

2p+3

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2p+3-3

2p

Then divide both sides by 2:

\dfrac{2p}{2}

p

3 0
4 years ago
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