All categories

3 years ago

Solve for z 2 + -z = 5

Mathematics

2 answers:

Mariana [72]3 years ago

6 0

I’m pretty sure the answer is 3 because the z stands for a missing number so 2+3=5

NARA [144]3 years ago

6 0

Simplify both sides of the equation.

2+-z=5

-z+2=5

Subtract 2 from both sides.

-z+2-2=5-2

-z=3

Divide both sides by -1

-z = 3

-1 = -1

z=-3

You might be interested in

Plzz help and no wrong answer need to be done asap

Ann [662]

Answer:

1/500

Step-by-step explanation:

7 0

2 years ago

I need help, can someone please help me

zaharov [31]

Answer:

slope (3,1) using rise over run y-intercept -1

Step-by-step explanation:

Starting at your y-intercept -1 and going up three and 1 to the right you get to your next point on the graph

5 0

3 years ago

Read 2 more answers

Solve x2 – 10x + 25 = 35 for x.

Galina-37 [17]

$x^2-10x+25=35\\\\x^2-2\cdot5\cdot x + 5^2=35\ \ \ |\text{use:}\ (a-b)^2=a^2-2ab+b^2\\\\(x-5)^2=35\to x-5=\pm\sqrt{35}\ \ \ |+5\\\\\boxed{x=5-\sqrt{35}\ \vee\ x=5+\sqrt{35}}$

$\text{other method}\\\\x^2-10x+25=35\\\\x^2-5x-5x+25=35\\\\x(x-5)-5(x-5)=35\\\\(x-5)(x-5)=35\\\\(x-5)^2=35\\.....$

3 0

3 years ago

G(x)=−2(x+1)(x+7) find the zeros

Makovka662 [10]

When finding zeros, the function has to equal zero. In other words, G(x) = 0.

For three multiplied parts to equal to zero, at least one has to be zero. -2 ≠ 0, but (x+1) or (x+7) can.

So you can equate each of those to zero and find out what the zeros are.

x+1=0
x=-1

x+7=0
x=-7

Thus the answer
x = -1 or -7

3 0

3 years ago

Form the quadratic equation whose one root is 2 + 2^(1/2)

Oksanka [162]

9514 1404 393

Answer:

x^2 -4x +2 = 0

Step-by-step explanation:

The other root is the conjugate of the given one, so is 2-√2. The quadratic equation in factored form is then ...

(x -2-√2)(x -2+√2) = 0

Expanding this, we get ...

(x -2)^2 -(√2)^2 = 0

x^2 -4x +4 -2 = 0

x^2 -4x +2 = 0 . . . . the equation you're looking for

4 0

3 years ago