2 years ago

PLEASE HELPP Btw letter D. Says 80

Mathematics

1 answer:

n200080 [17]2 years ago

8 0

C
the explanation is in the photo

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Y = 4

SSSSS [86.1K]

Answer:

when $x=5$ , $y=4$

the slope is 0

Step-by-step explanation:

There isn't much to explain.

5 0

2 years ago

Solve ( x - 2)( x + 7) =0

lara31 [8.8K]

Answer:

x = 2 or

x = -7

Step-by-step explanation:

(x - 2)(x + 7) = 0

x - 2 = 0

Add 2 to both sides

x - 2 + 2 = 2 + 0

x = 2

x + 7 = 0

Subtract 7 from both sides

x + 7 - 7 = 0-7

x = -7

Therefore

x = 2 or

x = -7

6 0

3 years ago

<img src="https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20-%201" id="TexFormula1" title="y = \frac{1}{2} - 1" alt=

Kitty [74]

Answer:

-0.5

Step-by-step explanation:

1/2 = 0.5

0.5 - 1 = - 0.5

4 0

2 years ago

For the rational expression 2x^2-7x-15/x^2-25, do both of the following,

Mrrafil [7]

Answer:

a. $\frac{2x + 3}{x+5}$

b. x ≠ -5 (Vertical asymptote) and x ≠ 5 (Hole)

Step-by-step explanation:

Factor the numerator (Grouping):

$2x^2 - 7x - 15$

Two numbers that multiply to -30 and add to -7 = -3 and 10

$[2x^2 - 10x] + [3x - 15]$

$(2x + 3)(x - 5)$

Factor the denominator (Difference of Two Squares):

$x^2 - 25$ = $(x +5)(x-5)$

Factored Expression:

(x - 5) can be factored out of top and bottom as a hole-

$\frac{(2x + 3)(x - 5)}{(x + 5)(x - 5)} = \frac{2x + 3}{x+5}$

Variable Restrictions:

Denominator ≠ 0

$x + 5 = 0\\x = -5$

Vertical asymptote at x = -5 ⇒ x ≠ -5

3 0

3 years ago

Olivia ties 2.5 feet of ribbon onto one balloon how many yards of ribbin does olivia need for 18 ballons

Lubov Fominskaja [6]

it is 15 yards or

45 feet.

4 0

3 years ago