3 years ago

Please hurry!!! If you answer first of the two I'll give you a brainliest!!!!

Mathematics

2 answers:

just olya [345]3 years ago

3 0

Answer:

Number 4

THIS IS THE ANSWERRR!!!!

tresset_1 [31]3 years ago

3 0

4) An ice cream vendor tracks the daily high
temperature and how many ice cream bars he sells each day.

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Which equation represents 4x – 3y = 15 when solved for y

andrey2020 [161]

Answer:

y=4/3x-5

Step-by-step explanation:

4x-3y=15

-4x -4x

______________

-3y=-4x+15

---- --- ---- (divide all by -3)

-3 -3 -3

y=4/3x-5

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2 years ago

Question five for geometry quiz

Helga [31]

The two tangents are parallel to each other because the two lines perpendicular to the same line are parallel to each other.

Lk + JK = JL

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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)

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