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3 years ago

Need help with other math who’s gonna help me brainlest and points

Mathematics

1 answer:

Over [174]3 years ago

7 0

I haven’t done this is a while but I think x=70

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Solve the system of equations.<br> 2x+8y=6<br> -5x-20y+-15

kondor19780726 [428]

Answer:

2x+8y=6

Step 1: Add -8y to both sides.

2x+8y+−8y=6+−8y

2x=−8y+6

Step 2: Divide both sides by 2

$\frac{2x}{2}$ = $\frac{-8y+6}{2}$

x=−4y+3

_________________________________________________________

−5x−20y−15

There are no like terms.

Answer:

=−5x−20y−15

7 0

3 years ago

Factor 4x squared-35x+4

ANEK [815]

$4x^2-35x+4\\\\a=4;\ b=-35;\ c=4\\\\\Delta=b^2-4ac\to\Delta=(-35)^2-4\cdot4\cdot4=1225-64=1161\\\\x=\frac{-b\pm\sqrt\Delta}{2a}\\\\\sqrt\Delta=\sqrt{1161}=\sqrt{9\cdot129}=3\sqrt{129}\\\\x=\frac{-(-35)\pm3\sqrt{129}}{2\cdot4}=\frac{35\pm3\sqrt{129}}{8}\\\\4x^2-35x+4=4\left(x-\frac{35-3\sqrt{129}}{8}\right)\left(x-\frac{35+3\sqrt{129}}{8}\right)$

8 0

2 years ago

Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

kaheart [24]

Answer:

62.73 will be the correct answer

3 0

2 years ago

Lines m and n are parallel solve for the following values of x. Tell which theorem you used.

nevsk [136]

Answer:

x=60°

Step-by-step explanation:

angle 135° and (2x+15)° are corresponding and thus are equal

Therefore (2x+15)°=135°

2x=135-15

2x=120°

X=60°

8 0

2 years ago

Help!!! question 3 please

Dimas [21]

Answer:

9 cows and 25 chicken

Step-by-step explanation:

First two lines

w + k = 34 1

4w + 2k = 86 2

8 0

3 years ago