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2 years ago

Pleaseeeeeeee help me on thissssss i need helpppppp

Mathematics

1 answer:

OverLord2011 [107]2 years ago

8 0

The first step is to divide by four to both sides

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Evaluate the series

dalvyx [7]

Answer:

the value of the series;

$\sum_{k=1}^{6}(25-k^2) = 59$

C) 59

Step-by-step explanation:

Recall that;

$\sum_{1}^{n}a_n = a_1+a_2+...+a_n\\$

Therefore, we can evaluate the series;

$\sum_{k=1}^{6}(25-k^2)$

by summing the values of the series within that interval.

the values of the series are evaluated by substituting the corresponding values of k into the equation.

$\sum_{k=1}^{6}(25-k^2) =(25-1^2)+(25-2^2)+(25-3^2)+(25-4^2)+(25-5^2)+(25-6^2)\\\sum_{k=1}^{6}(25-k^2) =(25-1)+(25-4)+(25-9)+(25-16)+(25-25)+(25-36)\\\sum_{k=1}^{6}(25-k^2) =24+21+16+9+0+(-11)\\\sum_{k=1}^{6}(25-k^2) = 59\\$

So, the value of the series;

$\sum_{k=1}^{6}(25-k^2) = 59$

6 0

3 years ago

Five minus two times y equals fourteen

podryga [215]

Answer:

$y=-\frac{9}{2}$

Step-by-step explanation:

Solve by isolating the variable on one side of the equation:

$5-2*y=14$

Simplify $-2*y$ to $-2y$ :

$5-2y=14$

Subtract 5 from both sides:

$-2y=9$

Divide both sides by -2:

$y=-\frac{9}{2}$

6 0

3 years ago

How many solutions exist for the mixed-degree system graphed below? A straight line a parabola are on a coordinate plane. The li

Tju [1.3M]

Answer:

Step-by-step explanation:

It’s just (4,-3)

7 0

3 years ago

Read 2 more answers

Solve this inequality:-1/2x-3<-2.5

balandron [24]

Answer:

X<1

Step-by-step explanation:

1/2X-3<-2.5

1/2X<-2.5+3

1/2X<0.5

2/1×1/2X<0.5×2/1

X<1

4 0

2 years ago

The industrial revolution was dependent on the ____________ system.

OlgaM077 [116]

The answer is obviously C

7 0

3 years ago