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Sloan [31]
3 years ago
11

Solve the equation. S^2+ 7s = - 20

Mathematics
1 answer:
nataly862011 [7]3 years ago
8 0

this is called the quadratic equation.

Either use quadratic formula to find S or The PSF

Product, sum, factor box.

Quadratic formula is : (-b±√(b²-4ac))/(2a) .

we'll use the quadratic formula because psf ain't possible.

-7± √(49-80)/2

(-7±-5.57)/2

s= 0.715 or 6.285

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Enoch is two times as old as MARTIN.three years ago,the difference between their ages was fifteen years.find their present ages
olga2289 [7]

9514 1404 393

Answer:

  • Enoch is 30
  • Martin is 15

Step-by-step explanation:

The difference in ages remains the same over time. Enoch, at twice Martin's age, is still 15 years older. That means Martin is 15 and Enoch is 30.

5 0
3 years ago
Which polynomial correctly combines the like terms and puts the given polynomial in standard form?
Minchanka [31]

Answer: -5x^3y^3+8x^4y^2-7xy^5+x^2y^4+8x^6

Step-by-step explanation:

-5x^3y^3+8x^4y^2-xy^5-2x^2y^4+8x^6+3x^2y^4-6xy^5

-5x^3y^3+8x^4y^2+(-xy^5-6xy^5)+(-2x^2y^4+3x^2y^4)+8x^6

-5x^3y^3+8x^4y^2+(-7xy^5)+(x^2y^4)+8x^6

-5x^3y^3+8x^4y^2-7xy^5+x^2y^4+8x^6

8 0
3 years ago
Read 2 more answers
Just answer the question in the picture. It's just math vocab! DO NOT answer for points OR SPAM LINKS!!! I will REPORT!
Alona [7]

Answer:

A circle is a round shaped figure that has no corners or edges. In geometry, a circle can be defined as a closed, two-dimensional curved shape.

The distance from the center to the circumference of a circle

The diameter is the length of the line through the center that touches two points on the edge of the circle.

The Radius is the distance from the center outwards. The Diameter goes straight across the circle, through the center. The Circumference is the distance once around the circle.

In plane geometry, a chord is the line segment joining two points on a curve. The term is often used to describe a line segment whose ends lie on a circle.

A line segment that has the endpoints on the circle and passes through the midpoint is called the diameter. The diameter is twice the size of the radius. A line segment that has its endpoints on the circular border but does not pass through the midpoint is called a chord. A circle is the same as 360°.

A line that intersects two or more points on a curve. (From the Latin secare "to cut")

The length of the side opposite the angle divided by the length of the adjacent side.

A line that intersects a circle in exactly one point is called a tangent and the point where the intersection occurs is called the point of tangency. The tangent is always perpendicular to the radius drawn to the point of tangency. A secant is a line that intersects a circle in exactly two points.

Common tangents to two circles may be internal or external. A common internal tangent intersects the line segment connecting the centers of the two circles whereas a common external tangent does not.

Step-by-step explanation:

they are in order! tell me if i made a mistake:)

7 0
3 years ago
Which of these relations is a function?<br> I’m I correct??
Vlad1618 [11]

Answer:

the first one on the bottom

Step-by-step explanation:

There is a little trick to find out if it is a function or not. This trick is called the vertical line test. if you can scan the figure with a virtual line and it does not touch more than one side of the figure at one time then it is a function. if it touches more than one side or line of the figure it is not a function.

3 0
3 years ago
Given m n, find the value of x and y.
KATRIN_1 [288]

Answer:

X= 38°

Y = 142°

Step-by-step explanation:

let the angle vertically opposite to 142° = w

therefore, w= 142° ( vertically opposite angles are equal)

hence,x+ w =180° ( two interior angles sum up to 180°)

x+ 142° = 180°

x= 180 - 142 = 48°

X = 38°

then calculating for Y

X + Y = 180° ( angles on a straight line sum up to 180°)

38+Y = 180

Y = 180- 38

Y = 142°

<h2>we're done here...</h2><h2>please don't forget to rate and mark brainliest!!!</h2>
4 0
2 years ago
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