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NikAS [45]
3 years ago
9

Find the product of (0.7) x 10^4 and 2.

Mathematics
1 answer:
Ipatiy [6.2K]3 years ago
4 0

Answer:

A. because 3.7 ×2 is 7.4. so the full answer would be 7.4 ×10^4

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NO SCAM. PLEASE SHOW WORK. WILL GIVE BRAINLY TO CORRECT ANSWER.
sergeinik [125]

Answer:

140

Step-by-step explanation:

A regular polygon is a shape with equal sides and angles. Because of this, we can write the following equation to set two sides equal to each other:

3a+b+3=2a+2b+6

Solving, we will get a in terms of b:

3a=2a+b+3,\\a=b+3

Now we can substitute a for (b+3) into our equation:

5a-2b+1=2a+2b+6,\\5(b+3)-2b+1=2(b+3)+2b+6,\\3b+16=4b+12,\\-b=-4,\\b=\boxed{4}

Therefore, the length of each side of this polygon is 5(4+3)-2(4)+1=28.

Since the perimeter of the polygon consists of all five sides, the perimeter is:

p=28\cdot 5 =\boxed{140}

6 0
3 years ago
Read 2 more answers
Every set of three points must be collinear.
maria [59]

Answer:

I suppose you're trying to make a triangle of some sort on a plane! So, in this case, yes the three points would reside all on the same plane. Making all three of them collinear.

3 0
3 years ago
What z-score value separates the top 10% of a normal distribution from the bottom 90%?​?
nata0808 [166]
The 90th percentile corresponds to Z ≈ 1.28155.

7 0
3 years ago
Find value of h for the parallelogram to the right.​
mezya [45]

Answer:

9.1

Step-by-step explanation:

Area of parallellogram = 13x7 = 10xh

h = 13*7/10 =91/10 = 9.1

6 0
3 years ago
Item 6 for what value of a is 8x−8+3ax=5ax−2a an identity?
Readme [11.4K]

Let's rewrite the expression as

8x+3ax-5ax = 8-2a \iff 8x - 2ax = 8-2a \iff 2x(4-a) = 2(4-a)

So, if a \neq 4, you may divide both sides by 4-a, the equation becomes 2x=2, and the only solution is x=1, which means that this is not an identity (an indentity is tautologically true, no matter the value of x).

If instead a = 4, you are multiplying both sides by zero, so the equation becomes

2x \cdot 0 = 2 \cdot 0 \iff 0=0

So, it doesn't matter which value for x you choose, because you will always end up with 0=0, which is obviously always true.

8 0
3 years ago
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