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kodGreya [7K]
3 years ago
9

What is the answer for 3.4x - 2y when x=1 and y=-2

Mathematics
2 answers:
Gnesinka [82]3 years ago
5 0
The answer is 7.4

Explanation
3.4(1) -2(-2) =?
3.4 + 4 = 7.4
scoray [572]3 years ago
3 0

Answer:

Step-by-step explanation:

3.4x - 2y

Putting values of x and y in the equation

3.4(1) - 2(-2)

= 3.4 + 4

= 7.4

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Is the binomial a factor of the polynomial nominal function?
Sedbober [7]

The factors for given equation f(x)=x^{3} +3x^{2} -25x-75.

  • (x-1) - No
  • (x-3) - No
  • (x+3) - Yes
  • (x-5) - Yes
  • (x+5) - Yes

<u>Step-by-step explanation:</u>

The given equation is f(x)=x^{3} +3x^{2} -25x-75 .

Add 0 at the end of the equation.

x^{3} +3x^{2} -25x-75 = 0.

Let us group the given equation,

(x^{3} +3x^{2}) -(25x-75) =0.

⇒ Group 1: x^{3} +3x^{2} .

Group 2: - 25x +75 .

Pull out factor from each group,

⇒ Group 1: (x+3)(x^{2}).

Group 2: (x+3) (-25).

Join the two group since both (x+3) is common in both groups.

(x+3)(x^{2} -25) =0.

One of the factor is (x+3).

Other factors are solved by the formula, a^{2}-b^{2} = (a+b) (a-b) .

(x+3)(x^{2} -25) = (x+5) (x-5) .

The other factors are (x+5) and (x-5).

7 0
3 years ago
Please help! Calculate the average rate of change for the given function, from x = 1 to x = 4.
egoroff_w [7]

Answer:

  4)  2

Step-by-step explanation:

The average rate of change is ...

  (f(4) -f(1))/(4 -1) = (10 -4)/3 = 6/3 = 2

5 0
4 years ago
Help please!!!!!!!!!!!
podryga [215]
147 - 3 = 144 / 9 = 16
216 - 3 = 213 / 9 = 23.7
193 - 3 = 190 / 9 = 21.1
Lemon Sours are the only pack of sweets that have enough for equal amounts for each cousin, and three for Whittney.
Each cousin will get 16 sweets.

Hope this helps.
4 0
3 years ago
19. Which is the suitable identity used to evaluate 9992 ?
andrew11 [14]

Answer:

I suppose you mean 999^2

(1000-1)^2

which comes under the identity

(a-b)^2=

(a^2 + b^2 - 2ab)

hope this helps

5 0
3 years ago
1+2^2 for brainliest + 40 points
IrinaK [193]

Answer:

5

Step-by-step explanation:

u do 2x2 cuz of the square root and add the 1

5 0
3 years ago
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