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2 years ago

Pls help ASAP need help pls

Mathematics

2 answers:

iris [78.8K]2 years ago

4 0

Answer:

False

True

(its what i think

Step-by-step explanation:

Nuetrik [128]2 years ago

3 0

True true false is what I think

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Write an equation With the slope equal to -4/5 and (0,8)

Murljashka [212]

Answer: y = (-4/5)x + 8

Solution

The equation of line is

y = mx + b

Where

y = y coordinate

m = slope

x = x coordinate

b = y intercept

In order to write the equation of line we need to find the y-intercept (b)

substitute the slope (-4/5) and coordinates given (0,8) ,

y = mx + b

8 = -4/5 (0) + b

8 = b

So,

y = (-4/5)x + 8

3 0

3 years ago

Use substitution to solve the following system of linear equations and fill in the following blanks:

marissa [1.9K]

Answer:

$x=-4$

$y=3$

$z=-5$

Step-by-step explanation:

Given:

$x+y+z=-6$

$x-6y-7z=-29$

$-7y-5z=4$

Solve for $x$ in the 1st equation:

$x+y+z=-6$

$x+y=-z-6$

$x=-y-z-6$

Substitute the value of $x$ into the 2nd equation and solve for $z$ :

$x-6y-7z=-29$

$(-y-z-6)-6y-7=-29$

$-7y-z-13=-29$

$-7y-z=-16$

$-z=-16+7y$

$z=16-7y$

Substitute the value of $z$ into the 3rd equation and solve for $y$ :

$-7y-5z=4$

$-7y-5(16-7y)=4$

$-7y-80+35y=4$

$28y-80=4$

$28y=84$

$y=3$

Plug $y=3$ into the solved expression for $z$ and evaluate to solve for $z$ :

$z=16-7(3)$

$z=16-21$

$z=-5$

Plug $z=-5$ into the solved expression for $x$ and evaluate to solve for $x$ :

$x=-(3)-(-5)-6$

$x=-3+5-6$

$x=2-6$

$x=-4$

Therefore:

$x=-4$

$y=3$

$z=-5$

6 0

3 years ago

Which one of the following shows the complete factorization x^3 + 3x^2

TiliK225 [7]

Answer:

Can you please add the options.

Step-by-step explanation:

6 0

3 years ago

It takes Jada 20 minutes to walk to school. It takes Andre 80% as long to walk to school. How long does it take Andre to walk to

Scrat [10]

Answer:

16 minutes

Step-by-step explanation:

If it takes Jada 20 minutes and it takes Andre 80% as long, then you multiply 20 by %80

20 * .80 = 16 minutes

7 0

3 years ago

Read 2 more answers

Solve the system of equations -4+11y=15 x=2y

kondaur [170]

To solve this I will be using substitution

-4 + 11y = 15
solve for y so

-4 + 11y = 15
11y = 19

y = 19/11

x = 2(19/11)

19/11 x 2 = 38/11

x = 38/11

x = 38/11
y = 19/11

I hope this helps!

3 0

3 years ago

Read 2 more answers