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2 years ago

Please give me the correct answer

Mathematics

2 answers:

Ronch [10]2 years ago

8 0

Answer:

I believe it's the last one.

algol [13]2 years ago

8 0

The last answer is gonna be it

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Bruh- can someone pls help me out kindly I will give 13 points

ycow [4]

Answer:

$\huge\boxed{\texttt{Yes. Explanation for why.}}$

Step-by-step explanation:

If we have the equation $y = \frac{1}{2}x - 4$ and we want to test if the point (4,–2) satisfies the equation, we can plug the x and y values into the equation and see if they make the equation true.

4 is the x value, -2 is the y.

$-2 = (\frac{1}{2}\cdot4)-4$

$-2 = 2 - 4$

$-2 = -2$

So this does satisfy the equation.

Hope this helped!

7 0

2 years ago

Read 2 more answers

N is an integer with -5 < 2n <6<br> write down all the values of n?

Alika [10]

Answer:

The values of n are less than 3 and more than (-5/2)

Step-by-step explanation:

The given inequality is :

-5 < 2n <6

We need to write the values of n.

Dividing both sides of the inequality by 2. So,

$\dfrac{ -5}{2} < \dfrac{2n}{2}$

So, the values of n are less than 3 and more than (-5/2).

7 0

2 years ago

What is the sum of the geometric series

lbvjy [14]

If $S$ denotes the sum of the first $n$ terms of a geometric series with first term $a$ and common ratio $r$ , then

$S=a+ar+ar^2+\cdots+ar^{n-3}+ar^{n-2}+ar^{n-1}$
$rS=ar+ar^2+ar^3+\cdots+ar^{n-2}+ar^{n-1}+ar^n$
$\implies S-rS=a+(ar-ar)+(ar^2-ar^2)+\cdots+(ar^{n-1}-ar^{n-1})-ar^n$
$\implies (1-r)S=a(1-r^n)$
$\implies S=a=\dfrac{1-r^n}{1-r}$

Using summation notation, you have

$S=\displaystyle\sum_{x=1}^nar^{x-1}=\sum_{x=0}^{n-1}ar^x=a\dfrac{1-r^n}{1-r}$

In this case, you have $a=2$ , $r=\dfrac12$ , and $n=16$ . So the value of the sum is

$\displaystyle\sum_{x=0}^{15}2\left(\frac14\right)^x=2\dfrac{1-\left(\frac14\right)^{16}}{1-\frac14}\approx2.67$

Rounded to the nearest whole number, the answer would be 3.

4 0

2 years ago

Read 2 more answers

Write the expression in standard form. -2(8m + 3)

Artist 52 [7]

Answer:

-16m-6

Step-by-step explanation:

use distributive property, you get -16m-6

I hope this helped, and if my answer was right, please mark this as brainliest! Thank you!

4 0

2 years ago