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3 years ago

Solve the system of equations 3r – 4s = 0 and 2r 5s = 23.

Mathematics

1 answer:

UkoKoshka [18]3 years ago

3 0

this is when its solved: r=4, s=3}

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1.Write an equation of the line in point-slope

Oduvanchick [21]

Answer:

Point slope form

$y-10 = -6 (x+1)$

Slope-intercept form

$y=-6x+4$

Standard form

$4x+y=4$

Step-by-step explanation:

Equation in Point slope form is

$y-y_1=m (x-x_1)$ ---------- (1)

Here

$m=-5 \ \ \ and \ \ \ (x_1, y_1) = (-1, 10)$

Substituting values in equation (1)

$y-10 = -6 (x+1)$ ------------- (2)

Equation (2) is equation of line in point slope form.

Re-arranging equation (2)

$y = -6x - 6 + 10$

$y=-6x+4$ ----------- (3)

Equation (3) is equation of straight line in slope-intercept form

Re-arranging equation (3)

$4x+y=4$ --------(4)

Equation (4) is equation of line in standard form

6 0

3 years ago

Simplify the following numerical expressions.

Mumz [18]

Answer:

|-7| - 7 = 0

2 |-7| = 14

( -7 )^2 = 49

-7^2 = 49

-7 -|-7| = -14

Step-by-step explanation:

4 0

3 years ago

Help me on this Geometry question "Finding angle measures using triangles".

vladimir1956 [14]

X is 63 degrees!
It is equal to the angle marked 63 degrees (angles in that arrangement are always equal)

5 0

3 years ago

Read 2 more answers

Please help me Simplify: 6! − 3!

djverab [1.8K]

Answer: Option B 3!((6×5×4)-1)

Step-by-step explanation:

6! - 3!

= (1×2×3×4×5×6) - (1×2×3)

= 720 - 6

= 714

As you told you forgot to put options lemme answer it.

It will be option B

3!((6×5×4)-1)

It will be 6((6×5×4)-1)

= 6(120) -6

= 720 - 6

= 714

please click thanks and mark brainliest if you like :)

5 0

3 years ago

Read 2 more answers

Will be giving out brainliest to whoever can answer this first

wariber [46]

Answer:

angle BOD = angle AOC

( cuz they are vertical opposite angles )

so angle BOD = 65°

8 0

3 years ago