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2 years ago

13

right in equation in standard form of the line that passes through the points parentheses -4, two parentheses and parentheses th

ree, eight parentheses

1 answer:

ANEK [815]2 years ago

4 0

Answer:

(-4 , 2) + (3 , 8) i think?

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WILL MARK BRAINLY FOR WHO EVER ANSWERS THIS FIRST

Dmitry [639]

Answer:

(0,1)

Step-by-step explanation:

the answer is (0,1)

5 0

3 years ago

*Find the formula of the series 1+2²+3²+4²+....+n²*<br>

Sophie [7]

The formula is $\frac{n(n+1)(2n+1)}{6}$

What are series?

In mathematics, we can describe a series as adding infinitely many numbers or quantities to a given starting number or amount.

We will find the formula as shown as below:

Let $S=1+2^2+3^2+4^2+................+n^2$

We know $(n+1)^3=n^3+3n^2+3n+1$

$(1+1)^3=1^3+3(1)^2+3(1)+1$

$(2+1)^3=2^3+3(2)^2+3(2)+1$

$(3+1)^3=3^3+3(3)^2+3(3)+1$

.

.

$(n+1)^3=n^3+3(n)^2+3(n)+1$

On adding

$2^3+3^3+4^3......(n+1)^3=(1^3+2^3+3^3+.....+n^3)+3(1^2+2^2+.....+n^2)+3(1+2+3....n)+(1+1+1+....+1)$

$2^3+3^3+4^3......(n+1)^3-(1^3+2^3+3^3+.....+n^3)=3S+\frac{3n(n+1)}{2}+(1+1+1+....+1)$

$(n+1)^3-1^3=3S+\frac{3n(n+1)}{2} +n$

$n^3+3(n)^2+3(n)+1-1=3S+\frac{3n(n+1)}{2} +n$

$2n^3+6n^2+6n=6S+3n^2+3n+2n$

$6S=2n^3+3n^2+n$

$6S=2n^2(n+1)+n(n+1)$

$6S=(n+1)(2n^2+n)$

$6S=n(n+1)(2n+1)$

$S=\frac{n(n+1)(2n+1)}{6}$

Hence, the formula is $\frac{n(n+1)(2n+1)}{6}$

Learn more about Series here:

brainly.com/question/24643676

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3 0

2 years ago

Julian school is selling tickets for a play the tickets cost $10.50 for adults and $3.75 for students the ticket sales for openi

Alik [6]

168 attended the night

5 0

1 year ago

What the answer y-8=-2 (x-7)

Kamila [148]

The answer is:
Solve for y in the first equation
y=−5<span>
y=8−<span>x
</span></span>
<span>Replace all occurrences of y with the solution found by solving the last equation for y. In this case, the value substituted is <span>−5</span></span><span>y=−5</span><span><span>(−5)</span>=8−<span>x
</span></span>
Remove parentheses.<span>y=−5</span><span>−5=8−<span>x
</span></span>
Solve for x in the second equation.<span>y=−5</span>
<span>x=13</span>
The answer is <span>(13,−5<span>) Please mark as Brainliest
</span></span>

5 0

2 years ago

Find the shaded part of diagram show step

Zina [86]

Answer:

81

Step-by-step explanation:

So first find the are of the rectangle: 9 * 15 = 135

Next find the area of the trapezoid.

$\frac{8+10}{2} *6=54$

135 - 54 = 81

7 0

3 years ago