2 years ago

I need help with number 13, 14, 15 and 16 please

Mathematics

1 answer:

katovenus [111]2 years ago

8 0

The picture is sideways can you flip it?

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The sum of 30 times (1-3)^(n-1) from n=1 to infinity

kati45 [8]

I can’t do it rn so just dm me later

7 0

2 years ago

HELP QUICK - I WILL MARK YOU BRAINLY

-BARSIC- [3]

Answer:

perimeter goes with the one that has 5x^2

i dont know the second im sorry

Step-by-step explanation:

8 0

2 years ago

What are the coordinates of the x-intercepts of the parabola y = x² - 8x + 15?

tamaranim1 [39]

Answer:

(3, 0) and (5, 0)

Step-by-step explanation:

we have

$y=x^{2}-8x+15$

we know that

The x-intercepts are the values of x when the value of y is equal to zero

For y=0

$x^{2}-8x+15=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2}-8x+15=0$

$a=1\\b=-8\\c=15$

substitute in the formula

$x=\frac{-(-8)\pm\sqrt{-8^{2}-4(1)(15)}} {2(1)}$

$x=\frac{8\pm\sqrt{4}} {2}$

$x=\frac{8\pm2} {2}$

$x=\frac{8+2} {2}=5$

$x=\frac{8-2} {2}=3$

x=3, x=5

therefore

The x-intercepts are (3,0) and (5,0)

4 0

2 years ago

Can someone please help me understand this problem!!’?

elena55 [62]

Answer:

THE ANSWER IS 4 I SWEAR

Step-by-step explanation:

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2 years ago

The sloped roof of a house that is right beside its property line can be represented by the inequality −|x − 2| + 9 > 6. Solv

lesya692 [45]

Answer:

This Is CORRECT

Step-by-step explanation:

8 0

2 years ago