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2 years ago

Examine the system of equations.

Mathematics

2 answers:

MakcuM [25]2 years ago

8 0

Answer:

$\boxed{\boxed{\sf x=-3}}$

Step-by-step explanation:

$\sf y = -3x - 2$

$\sf y=7$

We'll substitute y into the equation:

$\sf 7 = -3x - 2$

Switch sides:

$\sf -3x-2=7$

Add 2 to both sides

$\sf -3x-2+2=7+2$

$\sf -3x=9$

Divide both sides by -3:

$\sf \cfrac{-3x}{-3}=\cfrac{9}{-3}$

$\sf x=-3$

Therefore, the value of x/solution is -3

________________________________________

mezya [45]2 years ago

5 0

Answer:

The value of x is

✔ –3

The solution to this system of equations is

✔ (–3, 7)

Step-by-step explanation:

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Crazy boy [7]

Answer:

1. 2(k + 3)

2. 3. 75 + k

Step-by-step explanation:

1. 2x + 6

Since, 2 is a common factor of 2 and 6, we can take that common outside.

So, 2x + 6 = 2(x + 3)

Note that in the initial expression, this 2 was distributed to arrive at 2x + 6.

2. (1.5 + k) + 2.25

This is simple addition. We can simply remove the brackets to have:

1.5 + k + 2.25

Since, the like terms can be added, we will have:

1.5 + 2. 25 + k

= 3. 75 + k

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3 years ago

What is 5 to the square root of 1/2?

Pepsi [2]

Answer:

the answer is 2.5 hope it helps

4 0

2 years ago

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Write a Pythagorean triplet where one member is 6

enyata [817]

Answer:

6,8,10 is the pythagoran triplet

3 0

3 years ago

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Please help and explain process too. Thank you!!

sergey [27]

The answer is x^2+2x-5

7 0

2 years ago

Use Synthetic substitution to find f(3) and f(-4) for f(x)=x^4-8x-11

brilliants [131]

Answer:

46 and 277

Step-by-step explanation:

Given

f(x) = $x^{4}$ - 8x - 11 ← substitute x = 3, x = - 4 into f(x)

f(3) = $3^{4}$ - 8(3) - 11 = 81 - 24 - 11 = 81 - 35 = 46

f(- 4) = $(-4)^{4}$ - 8(- 4) - 11 = 256 + 32 - 11 = 288 - 11 = 277

4 0

2 years ago