3 years ago

Solve the equation by factoring. z2 − 6z − 27 = 0

Mathematics

1 answer:

Lisa [10]3 years ago

4 0

Answer:

The answer is x= 9 and -3

You must fine 2 number that multiply to equal -27 and add to equal -6

(x-9) (x+3)

Then equal the parts of the binomial to zero

x - 9 = 0

x + 3 = 0

You must get x by its self.

When you do so, you'll have the answer as -3 and 9

Step-by-step explanation:

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17. Find the ratio of the perimeter to the area of the square shown.<br> x + 3<br> x + 3

Serga [27]

Answer:

4x+12/x^2+9

Step-by-step explanation:

Perimeter

x+3+x+3+x+3+x+3

Area

(x+3)(x+3)

7 0

3 years ago

What is an equation of the line that is parallel to y=3x-8 and passes through point (4,-5)?

kompoz [17]

The equation of the line that is // to the given equation MUST HAVE THE SAME SLOPE.

The slope of the hiven equation is the number next to x or 3.

See it?

We know the slope is 3 and one point is given.

We now use the point-slope formula to find the equation.

y - y_1 = m(x - x_1)

See picture. The answer is y = 3x - 7.

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4 years ago

Can someone help me with these questions, don’t mind the answers written already

Rina8888 [55]

Answer:

a) x value is -2, min is -3(if thats y)

b) x value is 3, max is 21(if thats y)

Step-by-step explanation:

yes you do quadratic formula and such :)

8 0

2 years ago

What is the largest power of 2 that is a divisor of 13^4 - 11^4?