Question -3(-4)= Please help me I don’t know what to do!

Mathematics

1 answer:

kotegsom [21]3 years ago

5 0

Answer:

The answer is 12. Please please like.

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Factor 4x^4yz-16y^3z

Iteru [2.4K]

Answer:

Step-by-step explanation:

$4x^4yz-16y^3z\\\\4x^4yz=4yz\cdot x^4\\\\16y^3z=4yz\cdot4y^2\\\\4x^4yz-16y^3z=4yz\cdot x^4-4yz\cdot4y^2=4yz(x^4-4y^2)\\\\x^4-4y^2=x^{2\cdot2}-2^2y^2=(x^2)^2-(2y)^2=(x^2-2y)(x^2+2y)\\\\Used:\\\\(a^n)^m=a^{nm}\\\\(ab)^n=a^nb^n\\\\a^2-b^2=(a-b)(a+b)\\\\4x^4yz-16y^3z=4yz(x^2-2y)(x^2+2y)$

6 0

3 years ago

Six friends share cost of gift. They pay $90 and receive $42 in change. How much does each pay?

miskamm [114]

Lets look at the info we have:-

6 friends
Pay $90 and receive $42 in change.

Question:-

How much does each friend pay?

To answer this first we nee to find out how much they paed in total. lets do that 1st:-

90 - 42 = 48
They paid $48 for the gift.

CHECK OUR WORK:-

48 + 42 = 90
We were RIGHT!!

Now lets divide to find out how much each person paid:-

48 ÷ 6 = 8
Each friend pays $8.

CHECK OUR WORK:-

8 × 6 = 48
We were RIGHT!!

So, each friend pays $8 for the gift.

Hope I helped ya!! xD

7 0

3 years ago

Read 2 more answers

In the given diagram if AB || CD, ∠ABO = 118° , ∠BOD = 152° , then find the value of ∠ODC.

GaryK [48]

Answer:

90°

Step-by-step explanation:

Through point O draw a ray on left side of O which is || to AB & CD and take any point P on it.

Therefore,

∠ABO + ∠BOP = 180° (by interior angle Postulate)

118° + ∠BOP = 180°