3 years ago

Can someone help me understand this

Mathematics

1 answer:

Gnoma [55]3 years ago

8 0

Answer:

The answer for the question is E.

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Need answer asap, will give brainliest

lilavasa [31]

Answer:

Answer is A 35

Step-by-step explanation:

Hope this helps

7 0

3 years ago

Read 2 more answers

if the equation y=-4x+b represents the line that passes throught the point (1,4) determine the value of the y-intercept

kvv77 [185]

Answer:

y-intercept (0, 8)

Step-by-step explanation:

Plug in (1,4) --> (x,y) and solve for b (y-intercept):

y = -4x + b

4 = -4(1) + b

4 = -4 + b

b = 8

Therefore the y-intercept is (0, 8)

5 0

3 years ago

What are the exact solutions of x2 - 5x - 1 = 0?.

borishaifa [10]

$x^2-5x-1=0\\\\a=1;\ b=-5;\ c=-1\\\Delta=b^2-4ac\\\\\Delta=(-5)^2-4\cdot1\cdot(-1)=25+4=29 \ \textgreater \ 0\\\\therefore\\x_1=\dfrac{-b-\sqrt\Delta}{2a}\ and\ \dfrac{-b+\sqrt\Delta}{2a}\\\\x_1=\dfrac{5-\sqrt{29}}{2\cdot1}=\boxed{\dfrac{5-\sqrt{29}}{2}}\\\\x_2=\dfrac{5+\sqrt{29}}{2\cdot1}=\boxed{\dfrac{5+\sqrt{29}}{2}}$