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Helen [10]
2 years ago
15

Let g(x)= - x^2 + 5x + 2, find and simplify g(-3)​

Mathematics
1 answer:
ollegr [7]2 years ago
3 0

Answer:

g(-3) = -4

Step-by-step explanation:

We are given the following function:

g(x) = -x^2 + 5x + 2

Find and simplify g(-3)

We want to find the value of g when x = -3. So

g(-3) = (-3)^2 + 5(-3) + 2 = 9 - 15 + 2 = -4

g(-3) = -4

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Biologists have found that the number of chirps some types of cricket make per minute depends upon the temperature this relation
Alex Ar [27]

Answer: Crickets make 172 chirps/min at 80 degrees Fahrenheit

Step-by-step explanation:

Step 1

Using the point slope formulae for Linear functions , we have that

y - y1 = m(x - x1)

where x  and y are two points  representing the  temperature and chirps /min respectively

And  

m= slope

Step 2 : Finding the slope , m

where x1=60

           y1=92

           x2= 75

           y2=152

m= (y2-y1)/ (x2-x1)

= (152- 92)/(75-60)

=60/15 =4

Bringing down the point/slope formula and imputing the known values to find our equation to show the relationship cricket make per minute and  the temperature

y - y1 = m(x - x1)

y - 92= 4(x - 60)

y - 92 = 4x -240

y = 4x - 240 + 92

y = 4x - 148

Step 3

To find the number of chirps be per minute (y) if the temperature is 80 degrees Fahrenheit( x)

y = 4(80) - 160

y = 320 - 148

y = 172 chirps/min at 80 degrees Fahrenheit

6 0
2 years ago
What is the sign of sum and product
Tasya [4]

Answer:

Look below

Step-by-step explanation:

Sigma (summation) and Pi (product) notation are used in mathematics to indicate repeated addition or multiplication

\pi

Hope this helps

3 0
2 years ago
SOLVE what is J<br> 3j + 4 = 10<br> J =
tigry1 [53]

Answer: The answer is 2

Step-by-step explanation:

3j + 4 = 10  J = 2

3x2=6

6+4= 10

6 0
1 year ago
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If you get behind on a payment in messes you up
8 0
2 years ago
The bill for Dino's lunch was $19.45. He wanted to leave 20% of the total bill as a tip. How much should the tip be?​
Salsk061 [2.6K]

You could multiply 19.45 by 0.2 to solve for it, but if you're not using a calculator, then 19.45/5 would be much more convenient and easier.

0.2 is 1/5 in fraction form, which is why we can do that.

19.45/5 = 3.89

Dino should leave $3.89 as a tip.

7 0
3 years ago
Read 2 more answers
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