Name two numbers that add to -16 and multiply to 63

Mathematics

1 answer:

aniked [119]3 years ago

3 0

Answer:

-7 × -9 and (-7)+(-9).......//

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How do I solve it by substitution?<br>y=-2<br>4x-6y=-20

Ostrovityanka [42]

I hope this helps you! :)

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3 years ago

Read 2 more answers

Use the diagram to find the measure of each angle. Enter the number only.

Pavlova-9 [17]

9514 1404 393

Answer:

a = 64, b = 90, c = 26, d = 90, e = 26, f = 120, g = 120, h = 60,

i = 56, j = 124, k = 56

Step-by-step explanation:

Vertical angles are congruent; linear pairs are supplementary; two angles dividing a right angle are complementary. These are the angle relations you need to know to solve this.

Working from the top and from the given angles, ...

h = 60°

f = g = 180° -h = 120°

j = 124°

k = i = 180° -124° = 56°

a = 64°

b = d = 90°

c = e = 90° -64° = 26°

In summary, measures in degrees are ...

a = 64, b = 90, c = 26, d = 90, e = 26, f = 120, g = 120, h = 60,

i = 56, j = 124, k = 56

7 0

3 years ago

Solve for the system of liner equations by substitution. <br> X+4y= -1 <br> -3x-14=y

dem82 [27]

X=12x+55
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4 years ago

Write the equation of the sphere in standard form. x^2 + y^2 + z^2 + 2x − 4y − 6z = 22

madam [21]

The equation $x^{2} +y^{2} +z^{2} +2x-4y-6z=22$ in standard form looks like $(x+1)^{2} +(y-2)^{2} +(z-3)^{2} =(6)^{2}$ .

Given equation of sphere be $x^{2} +y^{2} +z^{2} +2x-4y-6z=22$ .

We are required to express the given equation in the standard form of the equation of sphere.

Equation is basically relationship between two or more variables that are expressed in equal to form. Equation of two variables look like ax+by=c. It may be linear equation,quadratic equation, cubic equation or many more depending on the powers of variables. The standard form of the equation of sphere looks like $x^{2} +y^{2} +z^{2} =r^{2}$ .