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geniusboy [140]
2 years ago
6

Y =x+4 what’s the answer?

Mathematics
1 answer:
topjm [15]2 years ago
5 0

Step-by-step explanation:

The answer is five .just say x is one subst. into the equation i guess.

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Write the following equation in standard form: y + 4 = -3(x + 2)
Irina18 [472]

Answer:

-3x-y=10

Step-by-step explanation:

y+4=-3(x+2)

y+4=-3x-6

y=-3x-6-4

y=-3x-10

-3x-y=10

5 0
3 years ago
1. Kalena was asked to prove ifx(x - 1)(x + 1) = x3 - X represents a polynomial identity. She
Verdich [7]

Answer:

C. Kalena made a mistake in Step 3. The justification should state: -x²

+ x²

Step-by-step explanation:

Given the function x(x - 1)(x + 1) = x3 - X

To justify kelena proof

We will need to show if the two equations are equal.

Starting from the RHS with function x³-x

First we will factor out the common factor which is 'x' to have;

x(x²-1)

Factorising x²-1 using the difference of two square will give;

x(x+1)(x-1)

Note that for two real number a and b, the expansion of a²-b² using difference vof two square will give;

a²-b² = (a+b)(a-b) hence;

Factorising x²-1 using the difference of two square will give;

x(x+1)(x-1)

Factorising x(x+1) gives x²+x, therefore

x(x+1)(x-1) = (x²+x)(x-1)

(x²+x)(x-1) = x³-x²+x²-x

The function x³-x²+x²-x gotten shows that kelena made a mistake in step 3, the justification should be -x²+x² not -x-x²

6 0
3 years ago
What is the area of the shaded region? Can someone please help me
Shkiper50 [21]

Answer:

9676

Step-by-step explanation:

100^2- 18^2= 9676

7 0
3 years ago
Find the mean and median what is the length of the jumping frogs bodies shown below ( the lengths are centimeters ) - 20.3 , 12.
Reptile [31]
Mean-20.3+12.5+7.9+17.5+15.6+14.1= 87.6
                      87.6/6=20.1
Median- 7.6+17.5/2= 12.55
4 0
3 years ago
There are 11 player positions on a high school soccer team. One coach uses these positions: 1 goalie, 4 midfielders, 1 center, 3
Keith_Richards [23]

Answer:

1:4:1:3:2

Step-by-step explanation:

8 0
3 years ago
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