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3 years ago

14

PLEASE HELP!! its due in 20 minutes and i dont get this

2 answers:

Goryan [66]3 years ago

7 0

Answer:

Please see below :)

Step-by-step explanation:

The slope is just what's in front of the x!

So:

1.) slope = -1/4

2.) slope = undefined

3.) slope = -9

4.) slope = 9/2

Hope this helps!

nikklg [1K]3 years ago

4 0

Answer:

1. -1/4

2. undefined

3. zero

4. 6/5

Step-by-step explanation:

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Mama L [17]

Answer:

X^2 -5x -36

Step-by-step explanation:

formula of an area of a rectangle: ab

a-length

b-width

(x+4)*(x-9) = x^2 -5x -36

7 0

3 years ago

I need help pls!!!!!!!!

KATRIN_1 [288]

The y-intercept is -7

4 0

3 years ago

Solve for x. The triangles are similar.

Serjik [45]

Answer:

$\fbox {D. 10}$

Step-by-step explanation:

As the triangles are similar :

45/55 = (12x - 3)/143

9/11 = (12x - 3)/143

9 x 13 = 12x - 3

12x = 117 + 3

12x = 120

x = 10

5 0

2 years ago

Read 2 more answers

Three times a number increased by 8 is no more than 24

Naily [24]

Answer:

3x + 8 ≤ 24

Step-by-step explanation:

Three times a number

3x

increased by 8

+ 8

no more than 24

≤ 24

---------------------

Altogether

3x + 8 ≤ 24

5 0

3 years ago

Find an equation of the tangent line to f(x) = 5x2 − 2x + 10 at x = 7.

laiz [17]

Answer:

$y=68x-235$

Step-by-step explanation:

$f(x) = 5x^2-2x + 10$

Differentiate:

$\implies f'(x)=10x-2$

Substitute $x=7$ into $f'(x)$ :

$\implies f'(7)=10(7)-2=68$

Therefore, 68 is the gradient of the tangent line at x=7:

$\implies y-y_1=68(x-x_1)$

when $x=7$ , $y=5(7)^2-2(7)+10=241$

$\implies y-241=68(x-7)$

$\implies y=68x-235$

4 0

2 years ago