24,16,32/3 find the 9th term?

No - freeze antifreeze mixture contains 30% alcohol how much alcohol is there in 15 quarts of no freeze

Fofino [41]

Thirty percent of those 15 quarts will be pure alcohol. Multiply 15 quarts by 0.30 to obtain this quantity.

3 0

3 years ago

Marita always listens to her favorite radio station, an oldies station, when she drives her car. She listens to her radio every

Advocard [28]

I would say A or C
dont take my word for it tho idk

6 0

4 years ago

Find the surface area of the square pyramid.

elena-14-01-66 [18.8K]

Answer:

C) 45 ft²

Step-by-step explanation:

<u>Formulae</u>

Area of a square = x² (where x is the side length)

Area of a triangle = 1/2 × base × height

The surface area of a square pyramid comprises:

square base
4 congruent triangles

⇒ area of square base = 5² = 25 ft²

⇒ area of triangular face = 1/2 × 5 × 2 = 5 ft²

⇒ Total surface area = area of square base + 4 triangular areas

= 25 + 4(5)

= 25 + 20

= 45 ft²

8 0

2 years ago

Read 2 more answers

The data below represent the number of days absent, x, and the final grade, y, for a sample of college students at a large uni

Zina [86]

Answer:

The equation of the regression line is: $y~=~88.518 ~-~ 3.068 \cdot x$

Step-by-step explanation:

Linear regression is a linear approach to modelling the relationship between a dependent variable and one or more independent variables.

Let X be the independent variable and Y be the dependent variable. We will define a linear relationship between these two variables as follows:

$Y=bX+a$

We have the the following data:

$\begin{array}{c|cccccccccc}No. \:of \:absences,\:x&0&1&2&3&4&5&6&7&8&9\\Final \:grade, y&88.5&85.7&82.8&80.3&77.4&73.1&63.6&68.1&65.2&62.4\end{array}$

To find the line of best fit for the points, follow these steps:

Step 1: Find $X\cdot Y$ and $X\cdot X$ as it was done in the table.

Step 2: Find the sum of every column:

$\sum{X} = 45 ~,~ \sum{Y} = 747.1 ~,~ \sum{X \cdot Y} = 3108.8 ~,~ \sum{X^2} = 285$

Step 3: Use the following equations to find intercept a and slope b:

$\begin{aligned} a &= \frac{\sum{Y} \cdot \sum{X^2} - \sum{X} \cdot \sum{XY} }{n \cdot \sum{X^2} - \left(\sum{X}\right)^2} = \frac{ 747.1 \cdot 285 - 45 \cdot 3108.8}{ 10 \cdot 285 - 45^2} \approx 88.518 \\ \\b &= \frac{ n \cdot \sum{XY} - \sum{X} \cdot \sum{Y}}{n \cdot \sum{X^2} - \left(\sum{X}\right)^2} = \frac{ 10 \cdot 3108.8 - 45 \cdot 747.1 }{ 10 \cdot 285 - \left( 45 \right)^2} \approx -3.068\end{aligned}$