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Vsevolod [243]
2 years ago
13

Someone help me please

Mathematics
1 answer:
lina2011 [118]2 years ago
3 0

Answer:

-13, 0.4,7 its the 4th one

Step-by-step explanation:

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danovan and three freinds go to a fair. They each spend 1/2 of their money on rides. They each spend $3 on food. At the end of t
astra-53 [7]

Answer:

They each brought $22 to the fair

Step-by-step explanation:

8+3=11

11*2=22

Answer=22

6 0
1 year ago
A realtor collects the data set given in DS 12.2.4 concerning the sizes of a random selection of newly constructed houses in a c
Yuliya22 [10]

The table is missing in the question. The table is attached below.

Solution :

Let X = appraised value

    Y = area (square feet)

The regression line is given by :

$\hat y = b_0+b_1X$

$b_1=\frac{n\sum XY-\sum X \sum Y}{n \sum X^2-(\sum X)^2}$

   $=\frac{15(5964990)-(2157)(33370)}{15(404799)-(2157)^2}$

  $=12.3267$

$b_0=\frac{\sum Y}{n}-b_1\frac{\sum X}{n}$

   $=\frac{33370}{15}-\left(12.3267 \times \frac{2157}{15}\right)$

  $b_0=452.0841$

The regression line is :

$\hat Y = 452.0841+12.3267 X$

To estimate the error variance, we have:

Error variance, $\sigma =\sqrt{\frac{\sum (Y-\hat Y)^2}n-2{}}$

                           $=\sqrt{\frac{587682.3}{15-2}}$

                            $=212.6178$

8 0
3 years ago
Fill in the blanks to solve this equation (ANSWER QUICK)
SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

5+\frac{1}{2} (14b-8)=-6

5+7b-4=-6

7b+1=-6

   -1      -1

7b=-7

/7      /7

b=-1

Answers in order:

7 + 7b - 4 = -6

7b + 1 = -6

7b = -7

b = -1

Hope this helps!

3 0
2 years ago
Identify the Vertex: x^2 - 12x + 44
nikklg [1K]

The vertex of the given quadratic polynomial function is (6, 8)

A quadratic polynomial function is the one which can be represented in the form ax² + bx + c = y where a, b and c are coefficients and x, and y are independent and dependent variables respectively. A parabola is formed when the quadratic polynomial is plotted on graph. The x coordinate of the vertex can be found using formula (-b/2a) and y coordinate can be found by putting the value of x in the equation.

Given polynomial function x² - 12x + 44

Now, x = (-b/2a)

x = (12/2)

=> x = 6

Now, y = 6² - 12×6 + 44

y = 36 - 72 + 44

=> y = 8

Therefore, Vertex = (6, 8)

Learn more about Vertex of quadratic polynomial at:

brainly.com/question/15385707

#SPJ9

3 0
1 year ago
Whats the difference between -191 degrees and -24 degrees.
Anit [1.1K]
Celsius, Fahrenheit, Kelvin? One’d colder than the other. Unless ur looking for a detailed answer lol.
7 0
3 years ago
Read 2 more answers
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