3 years ago

What is the sum of the series? Write in expanded form making sure to show all steps used to find the sum.

Mathematics

2 answers:

san4es73 [151]3 years ago

6 0

Answer:

-16

Step-by-step explanation:

k = 3

-2(3) + 5 = -1

k = 4

-2(4) + 5 = -3

k = 5

-2(5) + 5 = -5

k = 6

-2(6) + 5 = -7

(-1) + (-3) + (-5) + (-7)

= -16

SOVA2 [1]3 years ago

5 0

Answer: the answer to your question is -16

Step-by-step explanation:

You might be interested in

Need an explanation

aleksandrvk [35]

Answer: Choice B

$(6\sqrt{5}+5)i$

==========================================================

Work Shown:

$\sqrt{-5}+\sqrt{-25}+\sqrt{-125}\\\\\sqrt{-1*5}+\sqrt{-1*25}+\sqrt{-1*25*5}\\\\\sqrt{-1}*\sqrt{5}+\sqrt{-1}*\sqrt{25}+\sqrt{-1}*\sqrt{25}*\sqrt{5}\\\\i*\sqrt{5}+i*5+i*5*\sqrt{5}\\\\i*\sqrt{5}+5i+5i*\sqrt{5}\\\\(i\sqrt{5}+5i*\sqrt{5})+5i\\\\(\sqrt{5}+5\sqrt{5})i+5i\\\\(6\sqrt{5})i+5i\\\\(6\sqrt{5}+5)i\\\\$

This points us to answer choice B

7 0

3 years ago

Solve the following system of equations.

sasho [114]

X is minus 2
y is equal to 1

4 0

3 years ago

If the sum of difference of 13 and 4 divided 64 and 8 is subtracted from the result. Find that number. Mathematical equation plz

natka813 [3]

Answer:

13+4=17,17/64=3-8=-5

Step-by-step explanation:

this is the solution

3 0

2 years ago

Read 2 more answers

What is the value of x

Effectus [21]

4x+2x=180
6x= 180
Divide by 6
X= 30

7 0

2 years ago

Find the maximum rate of change of f(x,y,z=x y/z at the point (2, -3, 5 and the direction in which it occurs. maximum rate of ch

kherson [118]

$f(x,y,z)=x+\dfrac yz$
$\implies \nabla f(x,y,z)=\left(1,\dfrac1z,-\dfrac y{z^2}\right)$
$\implies \nabla f(2,-3,5)=\left(1,\dfrac15,\dfrac3{25}\right)$

The maximum rate of change is then

$\|\nabla f(2,-3,5)\|=\dfrac{\sqrt{659}}{25}$

which occurs in the direction of $\nabla f(2,-3,5)$ above.

6 0

3 years ago