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katrin [286]
3 years ago
13

Evaluate the equation below

Mathematics
1 answer:
meriva3 years ago
3 0

Answer:

-2

Step-by-step explanation:

2(x-4)+3x-x² for x = 3

is : 2(3-4) +3(3)-3² = -2  ... answer : B

You might be interested in
If f(x)=2x+3 and g(x)=x^2+1 find f(g(3))<br><br> Help!!<br> A.23<br> B.47<br> C.82<br> D.90
True [87]

Answer

A. 23

step-by-step explanation

g(x) =  {x}^{2} + 1

We put x=3 into the function g

\implies g(3)= {3}^{2} + 1

\implies \: g(3)=10

Also,

f(x)=2x +3

we substitute the value of g(3) into f

\implies f(g(3))=f(10)

\implies f(g(3))=f(10) = 2(10) + 3

\implies f(g(3))=23

8 0
3 years ago
Please hurry will give Brainliest answer please quick
Keith_Richards [23]
Y is the answer so thank me later
4 0
3 years ago
Read 2 more answers
Add or Subtract to Simplify:<br> (4x - 2x3) + (5x3 - 4x + 5)
sukhopar [10]

Answer:

<h2>3x³ + 5</h2>

Step-by-step explanation:

( 4x - 2x³ ) + ( 5x³ - 4x + 5)

<u>Remove the parenthesis</u>

That's

4x - 2x³ + 5x³ - 4x + 5

<u>Group like terms</u>

We have

5x³ - 2x³ + 4x - 4x + 5

We have the final answer as

<h3>3x³ + 5</h3>

Hope this helps you

4 0
3 years ago
Find the scale factor
Mama L [17]

Answer:

C. 50

Step-by-step explanation:

The triangles are proportional and that is why you can find the scale factor. Set up a proportion (equivalent fractions). Set the proportion up with the corresponding sides together on thee top or the bottom of the proportion.

<u>65  </u> = <u>  91</u>

x         70

91x = 65 * 70

<u>91x</u> = <u>4550</u>

91        91

x     =  50

8 0
3 years ago
(365 days per yr Jonas practices guitar 1 hour a day for 2 years. Bradley practices the guitar 2 hours a day more than Jonas. Ho
siniylev [52]

Answer:

87,600 minutes

Step-by-step explanation:

Given that practice time by Jonas :

1 hour per day for 2 years :

Bradley practices : 2 hours a day more than Jonas,

How many more minutes does Bradley practice the guitar than Jonas over the course of 2 years

Number of days in a year = 365 days

2 hours per day for (2 * 365) days :

2 * (2 * 365) = 1460 hours

Recall :

60 minutes = 1 hour

(60 * 1460) = 87,600 minutes

7 0
3 years ago
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