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monitta
3 years ago
14

-n/2 - 4 + 9f Variables n = 6 f = 4

Mathematics
1 answer:
mr_godi [17]3 years ago
3 0

Step-by-step explanation:

what do we need to do ?

just calculate the value of the expression with these values for the variables ?

what's the problem ? this is basic calculating :

-6/2 - 4 + 9×4 = -3 - 4 + 36 = 29

remember (please, for your life !) that multiplication and division always have to be calculated before additions and subtractions (except when brackets force is to go a different route).

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Help don’t understand
marusya05 [52]

Answer:

f(-14) = -6

f(-4) = 6

f(12) = 6

f(0) = -3

negative

Step-by-step explanation:

f(-14) = -6

This is because when x is -14, y is -6, as seen in the graph

f(-4) = 6

This is because when x is -4, y is 6, as seen in the graph

f(12) = 6

This is because when x is 12, y is 6, as seen in the graph

f(0) = -3

This is because when x is 0, y is -3, as seen in the graph

is f(4) positive or negative?
negative

This is because when x is 4, y is -6, as seen in the graph

6 0
2 years ago
Which of the following polynomials are quadratic
miv72 [106K]

Step-by-step explanation:

4x^2+3x+1 and x^2+4x are quadratic

4 0
3 years ago
The heights (in cm) and arm spans (in cm) of 31 students were measured. The association between (height) and (arm span) is shown
sergeinik [125]

Answer: Mike's arm span is 7.165 cm longer than the George's one.

Step-by-step explanation:

We have that the association between height and arm span is modeled by the equation

y = 4.5 + 0.977*x

where y is height and x is arm span.

Mike is 172 cm tall, so his arm span is:

172cm = 4.5 + 0.977*x

x = (172 - 4.5)/0.977 = 171.443 cm

and George is 165 cm tall, so his arm span is:

x = (165 - 4.5)/0.977 = 164.278 cm

Then the difference between their arm span is:

171.443cm - 164.278cm = 7.165 cm

So Mike's arm span is 7.165 cm longer than the George's one.

6 0
3 years ago
F(x)=(x+7)^3 expand the function
nydimaria [60]

Step-by-step explanation:

F(x) = (x + 7)³

= 3C0 * x³ + 3C1 * x² * 7 + 3C2 * x * 7² + 3C3 * 7³

= x³ + 21x² + 147x + 343.

4 0
3 years ago
Read 2 more answers
30 points!!!
olya-2409 [2.1K]

Answer:

The cost he will pay for 10 rides will be $70 and for r rides will be .

Step-by-step explanation:

The price of admission into the park is $20.The price for each ride is $5David takes 10 rides,So, the cost he will pay if he took 10 rides will be,If he had r rides,So, the cost he will pay if he took r rides will be,Therefore, the cost he will pay for 10 rides will be $70 and for r rides will be.

!!! hope this helps !!!!

6 0
2 years ago
Read 2 more answers
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