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EastWind [94]
2 years ago
10

Help with this one its 1 problem

Mathematics
1 answer:
Rainbow [258]2 years ago
4 0

Answer: Alberto caught up to Omar after 6 seconds, when Alberto had to run 54 meters.

Step-by-step explanation:

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arman needs 4 1/2 inches of cable to make A,3 3/4 inches to make B, and 5 1/8 inches to make C. He used a 12 inch piece of cable
Kaylis [27]
4 1/2 + 3 3/4 = 4 2/4 + 3 3/4 = 7 5/4 = 8 1/4...what he needs for A and B

He used 12 inches of cable...
12 - 8 1/4 = 11 4/4 - 8 1/4 = 3 3/4....length left after A and B are made

he doesn't have enough to make the last one...
5 1/8 - 3 3/4 = 41/8 - 15/4 = 41/8 - 30/8 = 11/8 = 1 3/8....he is short by 1 3/8 inches
6 0
3 years ago
The area of rectangular field is (49m2-42m+9).Find the dimensions of the field
Drupady [299]

Answer:

The dimensions are (7m-3) by (7m-3)

Step-by-step explanation:

We have the area of the rectangular field to be:

49 {m}^{2}  - 42m + 9

We need to factorize this expression.

Let us rewrite to obtain:

{(7m)}^{2}  - 2(7 \times 3)m +  {3}^{2}

We can easily see that the expression is actually a perfect square trinomial.

This gives us:

(7m - 3)^{2}

Or

(7m - 3)(7m - 3)

6 0
3 years ago
An ac unit uses 3500 watts or power. If it runs for 10 hours each day and the utility company charges $0.13 per kWh, how much do
Helga [31]

Cost = (3500 W)·(1 kw/1000 W)·(10 hrs/day)·(30 day/month)·($0.13/kw-hr)

Cost = (3500·1·10·30·0.13 / 1000)·(W·kW·hr·da·$ / W·da·month·kw·hr)

Cost = <em> 136.50  $/month</em>

5 0
3 years ago
Helps me pleaseeeeeee
exis [7]
There is no question...???
3 0
3 years ago
Write the expression as a square of a binomial: 9/25a^6b^2-a^4b^4+25/36a^2b^6
OlgaM077 [116]

answer below,

<h2>Hope this helps :></h2><h2 /><h2>From Cambridge</h2><h2 /><h2>please give brainliest!</h2>

5 0
3 years ago
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