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zzz [600]
3 years ago
5

Need help on this

Mathematics
1 answer:
Stolb23 [73]3 years ago
4 0
15.12m2 just finished the test
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I need a specific explanation of how to answer this
zimovet [89]
A rectangle has two dimensions, width and length, and the area of it is their product.

since we know its area is 3x²-11x-4, then the two factors from that trinomial are the likely width and length, namely (3x + 1) (x - 4).

you can check them with FOIL.
5 0
3 years ago
universal set={members of an expedition to the South pole},A={people born in Africa},C={people born in China},F={females} Amber
Minchanka [31]

Answer:

Amber is fossilized tree resin that has been appreciated for its color and natural beauty since Neolithic times. ... There are five classes of amber, defined on the basis of their chemical constituents. Because it originates as a soft, sticky tree resin, amber sometimes contains animal and plant material as inclusions.

6 0
3 years ago
Good morning can u help???
svp [43]

Answer:

Select the proportional relationship.

That is the only thing that is in the checkbox. It won't let you continue unless you get something.

8 0
3 years ago
Read 2 more answers
What is the sum of the first 70 consecutive odd numbers? Explain.
expeople1 [14]

The sum of the first n odd numbers is n squared! So, the short answer is that the sum of the first 70 odd numbers is 70 squared, i.e. 4900.

Allow me to prove the result: odd numbers come in the form 2n-1, because 2n is always even, and the number immediately before an even number is always odd.

So, if we sum the first N odd numbers, we have

\displaystyle \sum_{i=1}^N 2i-1 = 2\sum_{i=1}^N i - \sum_{i=1}^N 1

The first sum is the sum of all integers from 1 to N, which is N(N+1)/2. We want twice this sum, so we have

\displaystyle 2\sum_{i=1}^N i = 2\cdot\dfrac{N(N+1)}{2}=N(N+1)

The second sum is simply the sum of N ones:

\underbrace{1+1+1\ldots+1}_{N\text{ times}}=N

So, the final result is

\displaystyle \sum_{i=1}^N 2i-1 = 2\sum_{i=1}^N i - \sum_{i=1}^N 1 = N(N+1)-N = N^2+N-N = N^2

which ends the proof.

5 0
3 years ago
Sean used 3/4 cup of sugar to make a dozen brownies. How much sugar is in each brownie
Law Incorporation [45]
So.  how many times 12 goes into 3/4?

\bf \cfrac{\quad \frac{3}{4}\quad }{12}\implies \cfrac{\quad \frac{3}{4}\quad }{\frac{12}{1}}\implies \cfrac{3}{4}\cdot \cfrac{1}{12}\implies \cfrac{3}{48}\implies \cfrac{1}{16}


6 0
3 years ago
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