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3 years ago

12

hey anyone here! I need some help solving and understanding these please! I tried so hard but don't quite understand

1 answer:

Diano4ka-milaya [45]3 years ago

3 0

Step-by-step explanation:

this is the solution to both of these questions in that picture.

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A line passes through the point (-6,-9) and has a slope of 5/2.

mezya [45]

$(\stackrel{x_1}{-6}~,~\stackrel{y_1}{-9})\hspace{10em} \stackrel{slope}{m} ~=~ \cfrac{5}{2} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-9)}=\stackrel{m}{\cfrac{5}{2}}(x-\stackrel{x_1}{(-6)})\implies y+9=\cfrac{5}{2}(x+6) \\\\\\ y+9=\cfrac{5}{2}x+15\implies y=\cfrac{5}{2}x+6$

8 0

2 years ago

Read 2 more answers

Please help . I’ll mark you as brainliest if correct.

MariettaO [177]

Answer:

[4, positive infinity]

Step-by-step explanation:

since f(4) exists, the interval starts at 4, and continues to infinity.

3 0

3 years ago

The lengths in cm, of the sides of a triangle are 3x - 5, 2x-1 and x+1

Dennis_Churaev [7]

Answer:

a) p = 6x - 5

b) x = 6

Step-by-step explanation:

a) p = a + b + c

p = 3x - 5 + 2x - 1 + x + 1

p = 6x - 5

b) p = 6x - 5 =31

6x - 5 = 31

6x = 36

x = 6

3 0

2 years ago

Solve 7x - 2(x + 1) = 6x + 14 <br><br> A) -12 <br><br> B) 12<br><br> C) -16<br><br> D) 16

anzhelika [568]

<span>7x - 2(x + 1) = 6x + 14
</span><span>7x - 2x - 2 = 6x + 14
5x - 2 = 6x + 14
6x - 5x = -2 - 14
x = -16

answer
</span><span>C) -16</span>

3 0

3 years ago

The volume of a rectangular prism is (x4 + 4x^3 + 3x^2 + 8x + 4), and the area of its base is (x3 + 3x^2 + 8). If the volume of

kap26 [50]

$V=x^4+4x^3+3x^2+8x+4\\\\B=x^3+3x^2+8\\\\V=BH\to H=\dfrac{V}{B}\\\\\text{Substitute:}\\\\H=\dfrac{x^4+4x^3+3x^2+8x+4}{x^3+3x^2+8}$

6 0

3 years ago

Read 2 more answers