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Gre4nikov [31]
3 years ago
13

Evaluate * g(x) = x – 2x2 find g(-3) + 13

Mathematics
1 answer:
frez [133]3 years ago
6 0

Step-by-step explanation:

g(-3) + 13

= (-3) - 2(-3)^2 + 13

= - 3 - 18 + 13

= -8.

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I NEED HELP ASAP!!
Ksenya-84 [330]

Answer:

8 and 2

Step-by-step explanation:

5+3=8

5-3=2

6 0
3 years ago
A train travels 95 kilometers in 1 hours, and then 97 kilometers in 1 hours. What is its average speed?
aleksandrvk [35]
Average speed is given by [Total Distance] ÷ [Total Time]

Average speed = \frac{95+97}{1+1} = \frac{192}{2}=96 km/hour
8 0
3 years ago
What are the x and y-intercepts of the line described by this equation? -6x+3y=18.9?
Naddika [18.5K]

The "x" intercept is found when you plug in "0" for "y"
  -6x + 3(0) = 18.9
        -6x = 18.9  (Divide both sides by -6)
           x = - 3.15
           (-3.15, 0)  is your x-intercept

Now plug in "0" for the x
-6(0) + 3y = 18.9
          3y = 18.9  (Divide both sides by 3)
                y = 6.3
               (0, 6.3) is your y - intercept






































5 0
3 years ago
A certain pickup truck gets 20mpg in the city and 28 mpg on the highway. If the driver drives 270 mi on 11 gal of gas, determine
Snezhnost [94]

Answer:

95 city and 175 highway miles.

Step-by-step explanation:

The driver gets 20 mpg in city, and 28 mpg on the highway.

An equation that could be written is

20x+28y=270

This equation accounts for the distance traveled.

x+y=11

This equotion accounts for how many gallons were driven.

Multiply the bottom equation by 20, so you can solve the set of equations.

20x+28y=270

20x+20y=220

subtract them

8y=50

y=6.25

now plug this back into x+y=11

x+6.25=11

x=4.75

Now 4.75×20=95 city miles and 6.25×28=175 highway miles.

8 0
3 years ago
Evaluate 3^2 + (7 − 2) ⋅ 4 − 6 over 3
goldfiish [28.3K]

Answer:

7.7

Step-by-step explanation:

we basically follow the BEDMAS rule

1st we workout the bracket (7-2)=5

2nd the exponent 3^2=9

3rd the multiplication (7-2) . 4 = 5 . 4 = 20

4th addition 9+20=29

5th step is subtraction 29-6=23

the final step is dividing 23 by 3, which will become 7.7

6 0
3 years ago
Read 2 more answers
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