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3 years ago

If your smart please help me answer this question .

Mathematics

1 answer:

diamong [38]3 years ago

8 0

Answer:

it should be 30 or something I'm pretty sure that's the answer

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Jerome graphed the relationship between the temperature and the change in the number of people sledding at a park. The x coordin

Georgia [21]

Answer:

Quadrants 3 &4

Step-by-step explanation:

Quadrants 3 &4 represent negative integers. If 0 on the x axis represents the average/mean number of people there, then 3& 4 show the decrease from the average number.

4 0

3 years ago

What is the sum of the geometric series in which a1 = 4, r = 3, and an = 324?

olganol [36]

$\bf n^{th}\textit{ term of a geometric sequence}\\\\
a_n=a_1\cdot r^{n-1}\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
a_1=4\\
r=3\\
a_n=324
\end{cases}
\implies 
324=4(3)^{n-1}
\\\\\\
\cfrac{324}{4}=3^{n-1}\implies 81=3^{n-1}\implies 3^4=3^{n-1}\implies 4=n-1
\\\\\\
\boxed{5=n}\\\\$

$\bf -------------------------------\\\\
\qquad \qquad \textit{sum of a finite geometric sequence}\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
a_1=4\\
r=3\\
n=5
\end{cases}
\\\\\\
S_5=4\left( \cfrac{1-3^5}{1-3} \right)\implies S_5=4\left(\cfrac{1-243}{-2} \right)$

and surely you know how much that is.

8 0

3 years ago

Write each equation in slope-intercept form of the equation of a line. Underline the slope and circle the y-intercept in each eq

Jlenok [28]

Answer:

Slope-intercept is y=-x/3

The slope is -1/3

The y-intercept is 0

Step-by-step explanation:

First, we need to put this as slope-intercept for which is y=mx+b

3y=-x

y=-x/3

hope this helps!

8 0

3 years ago

Read 2 more answers

5,391 divided 77 estimate

neonofarm [45]

<span>5,391 divided 77 = 70.01...........

by estimation

70</span>

6 0

3 years ago

Write the sum and the product of the root of 2xsquare+10x-5=0

yan [13]

Answer:

Sum = -5.

Product = -2.5.

Step-by-step explanation:

For the general form ax^2 + bx + c = 0, the sum of the roots = - b/a and the product of the roots = c/a.

We have 2x^2 +10x - 5 = 0 so and the sum = -10/2 = -5 and the product = -5/2 = -2.5.

5 0

3 years ago