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3 years ago

The president of the university plans a speech to an alumni group

Mathematics

1 answer:

stealth61 [152]3 years ago

3 0

Answer:

The proportion of respondents who are first attenders is then a sample statistics, while the proportion of the entire student body that are first attenders is a population parameter.

Hope it helps

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£6846 is shared equally between 7 people. How much does each person get?

jok3333 [9.3K]

Answer:

£978

Step-by-step explanation:

i did use a calculator so i don't know if this is wrong or not, sorry if it is.

8 0

3 years ago

Read 2 more answers

Find an explicit formula for the geometric sequence -40,-20,-10......

garik1379 [7]

Answer:

The explicit formula for the geometric sequence is $c(n) = -40\cdot \left(\frac{1}{2} \right)^{n-1}$ .

Step-by-step explanation:

By definition of geometric sequence, we should use the following expression:

$c(n) = c_{1}\cdot r^{n-1}$ , $n \ge 1$ (1)

Where:

$c_{1}$ - First term.

$r$ - Geometric rate.

$n$ - Position of the element within the series.

If we know that $c_{1} = -40$ and $r = \frac{1}{2}$ , then the explicit formula for the geometric sequence is:

$c(n) = -40\cdot \left(\frac{1}{2} \right)^{n-1}$

The explicit formula for the geometric sequence is $c(n) = -40\cdot \left(\frac{1}{2} \right)^{n-1}$ .

3 0

3 years ago

MATH HELP!!!!!!!!!!!!!!!!!!!!!!!!!!

Marina CMI [18]

Question 2. :

8^2 = 64 and 9^2 = 81, therefore the square root of 65 falls between these two values, 8 and 9, 64<65<81

Question 3. :

13^2 = 169 and 14^2 = 196, the correct answer is square root of 175, because 169<175<196

Hope this helps, you only need to know the squared values and square roots.

8 0

4 years ago

Trigonometry Problem <br><br> Find the length of the missing side.

KengaRu [80]

Answer:

Step-by-step explanation:

sin x = opp/hyp

sin(52) = 18/z

z = 18/sin(52)

z = 22.84

8 0

3 years ago

Read 2 more answers

Rashau made a rectangular frame for her latest oil painting. The length is 28 centimeters more than triple the width. The perime

postnew [5]

The length is about 28 more than three times the width. Denoted as (a) width, and as (b) the length. Then move on to lay the system of equations, as done below:

$\begin{cases}2a+2b=136\\b=3a+28\end{cases}$
$\begin{cases}2a+2b=136|:2\\b=3a+28\end{cases}$
$\begin{cases}a+b=68\\b=3a+28\end{cases}$
$\begin{cases}a+3a+28=68\\b=3a+28\end{cases}$
$\begin{cases}4a=40|:4\\b=3a+28\end{cases}$
$\begin{cases}a=10\\b=3*10+28\end{cases}$
$\begin{cases}a=10\\b=58\end{cases}$

The short side has a length of 10 cm, and 58 cm long.

5 0

3 years ago