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3 years ago

2. Express the following in the form of a ratio and

Mathematics

1 answer:

marta [7]3 years ago

3 0

Answer:

I think it might be 24 seconds to 11 minuets

Step-by-step explanation:

Im not shure please tell me if I am wrong

I hope this helps!

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How to graph quadratic equations

icang [17]

If you are graphing quadratic equations of the type
ax^2 + bx + c = 0

The equation will look like a "U" if "a" is positive or it will look like an upside-down "U" if "a" is negative

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3 years ago

The perimeter of a triangle is 30 units. If it is dilated with respect to origin by a scale factor of 0.5, what is the perimeter

il63 [147K]

Choices: 30 units ; 20 units ; 15 units ; 7.5 units

Given:
perimeter = 30 units
scale factor = 0.5

30 units * 0.50 = 15 units

The perimeter of the resulting triangle is 15 units.

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Wench model represents the factors of x^2+9x+8?

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3 years ago

consider the function f(x) = x2 2x – 15. what are the x-intercepts of the function? left-most x-intercept: ( , 0) right-most x-i

eimsori [14]

we have

$f(x)=x^{2} +2x-15$

we know that

The x-intercept is the value of x when the value of the function is equal to zero

in this problem

Find the roots of the function

equate the function to zero

$x^{2} +2x-15=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$x^{2} +2x=15$

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2} +2x+1=15+1$

$x^{2} +2x+1=16$

Rewrite as perfect squares

$(x+1)^{2}=16$

Square root both sides

$(x+1)=(+/-)\sqrt{16}$

$(x+1)=(+/-)4$

$x=-1(+/-)4$

$x1=-1+4=3$

$x2=-1-4=-5$

$x^{2} +2x-15=(x-3)(x+5)$

therefore

the answer is

the x-intercepts are the points $(3,0)$ and $(-5,0)$

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3 years ago

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Find the area of the shaded region

melamori03 [73]

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2 years ago

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