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MAXImum [283]
3 years ago
14

4. Calculate using the order of operations.a) (+30) / (-10) + (-20) / (-1)​

Mathematics
1 answer:
umka2103 [35]3 years ago
6 0

Answer:

17

Step-by-step explanation:

30/-10 + -20/-1

= -3+20

= 17

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Complete the puzzle by clicking on the puzzle piece that contains equivalent expression.
Liono4ka [1.6K]

Answer:

 -5 when ...

Step-by-step explanation:

The rules of exponents can help you simplify the given product.

<h3>Rules</h3>

  (a/b)^c = (a^c)/(b^c)

  (ab)^c = (a^c)(b^c)

  (a^b)(a^c) = a^(b+c)

  (a^b)/(a^c) = a^(b-c)

<h3>Application</h3>

  \left(\dfrac{x}{y}\right)^2(-x^2y)^3=\\\\\dfrac{x^2(-1)^3(x^2)^3y^3}{y^2}=-x^{2+2\cdot3}y^{3-2}=-x^8y

This expression does not match any of those offered.

When x=-1 and y=5, this becomes ...

  -(-1)^8(5)=\boxed{-5}

8 0
1 year ago
the pet store sells bags of pet food. there are 4 bags of cat food. one sixth of the bags of food are bags of cat food. how many
const2013 [10]
28 bags if you include the cat food (which you would)
8 0
3 years ago
Read 2 more answers
-2 ≤2x-4 &lt;4 solve inequality
Korolek [52]

-8 < 4

hope it helps

4 0
1 year ago
Read 2 more answers
If you place a 13-foot ladder against the top of a 12-foot building, how many feet will the bottom of the ladder be from the bot
Degger [83]
13^2=12^2+x^2
25=x^2
5=x
5 0
3 years ago
Read 2 more answers
In triangle ABC, D is the midpoint of side AC and E is the midpoint of side BC.
cestrela7 [59]

Answer:

14

Step-by-step explanation:

Since all sides are half of greater triangle.Then 7 × 2 = 14 is length of greater hypotenuse.

Suppose two triangles with similar conditions

1^2+1^2=2

Hypotenuse=2^1/2

We assume another triangle which is exactly double of previous triangle I.e

2^2+2^2=8

Hypotenuse=2×2^1/2

Which is exactly twice of previous triangle.

Hence proved hyootenuse is double of smaller triangle I.e 14

8 0
3 years ago
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