3 years ago

Simplify image below 20 POINTS!

Mathematics

2 answers:

Harrizon [31]3 years ago

7 0

Hey there!

I believe this would be your answer: $\frac{a^2+ab+b^2} {a+b}$

Hope this helps!

Have a great day!

Tcecarenko [31]3 years ago

4 0

(a-b)(a^2+ab+b^2)/(a-b)(a+b)

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mart [117]

Answer: $\sum_{n=1}^{5}4^n=1364$

Step-by-step explanation:

Since we have given that

$\sum_{n=1}^{5}4^n$

Now, we know the rule for summation , we'll apply this ,

$\sum_{n=1}^{5}4^n\\=4^1+4^2+4^3+4^4+4^5\\$

Now, it becomes geometric progression, so we us the formula for sum of terms in g.p. which is given by

$S_n=\frac{a(r^n-1)}{r-1}\\\\\text{where 'a' is the first term and 'r' is the common ratio}$

So, our equation becomes ,

$a=4 \\\\r=\frac{a_2}{a_1}=\frac{4^2}{4}=4\\\\S_5=\frac{4(4^5-1)}{4-1}\\\\S_5=1364$

Hence ,

$\sum_{n=1}^{5}4^n=1364$

7 0

2 years ago

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Sixth grade

garri49 [273]

Answer:

11-C

Step-by-step explanation:

Cause 11-C

equels the same amount as the one on the top of 11-C

6 0

2 years ago

Solve for Y to get the equation into slope-intercept form and then state the slope and state the slope and state the y-intercept

valentinak56 [21]

-8-4y=-5x
-4y=-5x+8
y=5/4x+2

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y-intercept=(0,2)

4 0

2 years ago

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Use your plan of dividing both sides by five to solve the equation. What is the value of x?

sleet_krkn [62]

Where’s the equation

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2 years ago

The roots of the equation x^2+6x+11=0 are

saul85 [17]

<span>x^2+6x+11=0
After solving this u will bet
X=-6+,-</span>√-8/2
So roots of a equation are imaginary

3 0

2 years ago