3 years ago

What are the solutions to the equation as well

1 answer:

4 0

Answer:

Step-by-step explanation:

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Dominik [7]

Please go into more detail about the question then u will be able to help you

3 0

3 years ago

Kaylis [27]

Answer:

its C

Step-by-step explanation:

7 0

3 years ago

Andreyy89

$\displaystyle\sum_{i=3}^{10}(2i-9)=2\sum_{i=3}^{10}i-9\sum_{i=3}^{10}1$

Recall that

$\displaystyle\sum_{i=1}^n1=n$

$\displaystyle\sum_{i=1}^ni=\frac{n(n+1)}2$

Your sums start at $i=3$ , so in order to apply these formulas directly, you need to compensate for the missing first two terms:

$\displaystyle\sum_{i=3}^{10}1=\sum_{i=1}^{10}1-(1+1)=10-2=8$

$\displaystyle\sum_{i=3}^{10}i=\sum_{i=1}^{10}i-(1+2)=\frac{10\cdot11}2-3=52$

$\implies\displaystyle\sum_{i=3}^{10}(2i-9)=2\cdot52-9\cdot8=\boxed{32}$

4 0

3 years ago

zubka84 [21]

The answer is Translation since the shape never changed any angle or position it is safe to say that they just used a translation to move it.

5 0

3 years ago

nadezda [96]

Answer:

divide by ten and then multiply by 2.

6 0

3 years ago