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OleMash [197]
2 years ago
14

Unit 4

Mathematics
1 answer:
Dennis_Churaev [7]2 years ago
6 0
He did this then that plus to this and that =334.2
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Quick algebra 1 question for 25 points!<br><br> Only answer if you know the answer, Tysm!
zzz [600]

Using a quadratic regression equation, it is found that the prediction of volunteers in year 10 is of:

A. 47.

<h3>How to find the equation of quadratic regression using a calculator?</h3>

To find the equation, we need to insert the points (x,y) in the calculator.

In this problem, we have that the function initially increases, then it decreases, which means that it is a quadratic function. The points (x,y) to  be inserted into the calculator are given as follows:

(1, 20), (2,17), (3, 16), (4,16), (5,18), (6,21), (7,25), (8,31)

Inserting these points into the calculator, the prediction of y for a value of x is given as follows:

y = 0.702x^2 - 4.726x + 23.857

Hence, when x = 10, the prediction is:

y = 0.702 x 10² - 4.726 x 10 + 23.857

y = 47.

Hence option A is correct.

More can be learned about a quadratic regression equation at brainly.com/question/24028025

#SPJ1

4 0
1 year ago
Whats is 4 hundreds 13 tens 5 ones in standard form
mars1129 [50]
<span>4 hundreds 13 tens 5 ones = 400+13*10+5
                                        = 400+130+5
                                        = 535</span>
6 0
2 years ago
which system of equations is represented by this graph? It's you need another picture let me know please help ​
likoan [24]
The answer would be A
7 0
3 years ago
A triangle has angles measuring 30 degrees and 90 degrees the length of the included side is 6cm. tell whether the conditions fo
Alexxx [7]
Angle 1 = 30°
Angle 2 = 90°
⇒ Angle 3 = 60°
So, it's right triangle. We can set the length of one side and get all other sides.
So, we have 1 triangle. If there are 2 or more triangles with the same data, all the triangles will be congruent because of : <span>Two triangles are </span><span>congruent if </span>"<span>ASA: Two interior angles and the included side in a triangle have the same measure and length, respectively, as those in the other triangle</span><span>.</span>"
4 0
3 years ago
How long is the brace that connects points B and D?<br><br> 8 cm<br> 16 cm<br> 30 cm<br> 60 cm
Delvig [45]

Answer:60

Step-by-step explanation:

5 0
3 years ago
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