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3 years ago

-y+31-5y-15 need help with this

Mathematics

2 answers:

Cerrena [4.2K]3 years ago

6 0

-6y+16 would be the answer

iogann1982 [59]3 years ago

4 0

-2 x (3y - 8) would be the answer

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I need help pls<br> thank you

marissa [1.9K]

Answer:

x=22°, y=50°, z=108°

Step-by-step explanation:

x=22°(alternate angles are equal)

y=50°(angle sum in triangle is 180°)

z=108°

6 0

3 years ago

Can somebody step by step explain how to solve this problem??<br><br> (3x^2y)(-7xy^3)

charle [14.2K]

Answer:

$\boxed{\bold{-21x^3y^4}}$

Explanation:

[ Step One ] Remove Parenthesis: (a) = a

$\bold{-3x^2y\cdot \:7xy^3}$

[ Step Two ] Multiply: $\bold{3\cdot \:7=21}$

$\bold{-21x^2xy^3y}$

[ Step Three ] Apply Exponent Rule $\bold{\:a^b\cdot \:a^c=a^{b+c}: \ x^2x=\:x^{2+1}=\:x^3}$

$\bold{-21x^3y^3y}$

[ Step Four ] Apply Exponent Rule: $\bold{y^3y=\:y^{1+3}=\:y^4}$

$\bold{-21x^3y^4}$

[ $\boxed{\bold{Final \ Answer}}$ ]

➤ $\bold{-21x^3y^4}$

$\boxed{\bold{Mordancy}}$

5 0

3 years ago

Read 2 more answers

Help with this too plzzzzzzz

olganol [36]

3×6×-4

=-72

-5(5+5)

=-25-25

=-50

4×-4²+-4×-7

=4×16+-4×-7

=64+ 28

=92

4-4×-7

=4+28

=32

-9²+5×-2²

=81+20

101

-32×24/-2×-1

=-768/2

=-384

-8²×-6/-3×-4²

=64×-6/-3×-16

=-384/48

=-8

4 0

2 years ago

6x+8y=5 and 3x+4y=-2

Feliz [49]

ANSWER If you solve for x you get -4/3 y+5/6 If you solve for y you get -3/4x +5/8.

Step-by-step explanation

and then the second answer is

If you solve for x you get-4/3y +-1/2

If you solve for y you get -3/4x +-1/2

3 0

3 years ago

Michael boards an elevator at the 23rd floor. She travels up 14 floors, and then down 7 floors.

dem82 [27]

Michael will end up on the 30th floor.

7 0

3 years ago