3 years ago

URGENT These are just 3 easy fill in the blank math problems.

Mathematics

2 answers:

elena-14-01-66 [18.8K]3 years ago

6 0

Answer:

1. minus

2. srry i dunno this one

3. minus (again)

kirill [66]3 years ago

3 0

Answer:

Same signs add and keep different signs subtract take the sign of the higher number then youll be exact! :)

Step-by-step explanation:

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[x + 3y = -4] [2x + 6y = 5]

stealth61 [152]

Step-by-step explanation:

x+3y=-4(eqn1)

x=-4-3y

from (eqn 2)

2(-4-3y)+6y=5

-8-6y+6y=5

y=5+8=13.

y=13

from eqn 1

x+3(13)=-4

x+39=-4

x=-4-39

x=-43.

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3 years ago

What angles are adjacent ?

natima [27]

Answer:

Angle number 5 is adjacent to angle psl

5 0

3 years ago

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Prove each statement that is true and ﬁnd a counterexample for each statement that is false. Assume all sets are subsets of a un

tekilochka [14]

Answer with Step-by-step explanation:

We are given that A, B and C are subsets of universal set U.

We have to prove that

$A\cap (B-C)=(A\cap B)-(A\cap C)$

Proof:

Let x $\in A\cap (B-C)$

Then $x\in A$ and $x\in(B-C)$

When $x\in ( B-C)$ then $x\in B$ but $x\notin C$

Therefore, $x\in( A\cap B)$ but $x\notin (A\cap C)$

Hence, it is true.

Conversely , Let $x\in(A\cap B)$ but $x\notin(A\cap C)$

Then $x\in A$ and $x\in B$

When $x\notin ( A\cap C)$ then $x\notin C$

Therefor, $x\in A\cap (B-C)$

Hence, the statement is true.

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3 years ago

There are 32 sixth graders and 44 seventh graders in the video gaming club. Which ratio is the greatest?

katrin [286]

I’m gonna say D hope this helps

3 0

3 years ago

If someone can answer this and explain it, I would really appreciate it, thanks.

daser333 [38]

Answer:

x = 13

Step-by-step explanation:

Now since the lines are parrarel, the intersection points are alternate to each other. Therefore, A = B.

Solve:

8x + 2 = 14x - 76

2 + 76 = 6x

78 = 6x

x = 13

8 0

3 years ago

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