O Critical values: r=0.514, no significant linear correlation
14. Use the given data to find the best predicted value of the response variable.
(1 poi
Based on the data from six students, the regression equation relating number of hours of
preparation (x) and test score (y) is y = 67.3 +1.07x. The same data yield r=0.224 and
y = 75.2
What is the best predicted test score for a student who spent 4 hours preparing for the
test? Use a = 0.05.
0 78.1
0 75.2
O 71.6
O 59.7

Answer:

Acute

Step-by-step explanation:

Answer:

total amount of students in the class = 24

the amount of boy students in the class = 8

the amount of girl students in the class = ?

a) we know how many boys are in so B=8/24

b) know you calculate the amount of girl students in the class

totally they are 24 students are found we know the boys then the last are girls to know how many girls are in there

24 - 8 = 16 girls.

G=16/24

Answer:

least number 19 added to get perfect square of 37 (37²)

Step-by-step explanation:

1350+19=1369

√1369 = 37

Answer:

I believe the answer for that is this

y=-x²-1

y=0

Answer:

3 grams

Step-by-step explanation:

1.  820*26.8%=219.76

820-219.76=600.24

2.  600.24*26.8%=160.86432

600.24-160.86432=439.37568

3.  439.37568*26.8%=117.752682

439.37568-117.752682=321.622998

4.  321.622998*26.8%=86.1949635

321.622998-86.1949635=235.428034

5.  235.428034*26.8=63.0947131

235.428034-63.0947131=172.333321

6.  172.333321*26.8%=46.18533

172.333321-46.18533=126.147991

7.  126.147991*26.8%=33.8076616

126.147991-33.8076616=92.3403294

8.  92.3403294*26.8%=24.7472083

92.3403294-24.7472083=67.5931211

9.  67.5931211*26.8%=18.1149565

67.5931211-18.1149565=49.4781646

10.  49.4781646*26.8%=13.2601481

49.4781646-13.2601481=36.2180165

11.  36.2180165*26.8%=9.70642842

36.2180165-9.70642842=26.5115881

12.  26.5115881*26.8%

26.5115881-7.10510561=19.4064825

13.  19.4064825*26.8%=5.20093731

19.4064825-5.20093731=14.2055452

14.  14.2055452*26.8%=3.80708611

14.2055452-3.80708611=10.3984591

15.  10.3984591*26.8%

10.3984591-2.78678704=7.61167206

16.  7.61167206*26.8%

7.61167206-2.03992811=5.57174395

17.  5.57174395*26.8%=1.49322738

5.57174395-1.49322738=4.07851657

18.  4.07851657*26.8%=1.09304244

4.07851657-1.09304244=2.98547413

2.98547413

3

Too much ;-;

Answer:

q + d = 33  0.25q + 0.1d = 6 Option D

Step-by-step explanation:

The system of linear equation that can be used to find the number of quarters, q, and the number of dimes, d, Martin has is as follows:

q + d = 33

0.25q + 0.1d = 6

Martin has a combination of 33 quarters and dimes worth a total of $6.

Therefore,

q = number of quarters

d = number of dimes

0.1 dollars = 1 dime

0.25 dollars = 1 quarters

Therefore,

0.25q + 0.1d = 6

The quarters and dimes total 33. Therefore,

Therefore, the combined equation will be as follows:

q + d = 33

0.25q + 0.1d = 6

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Answer:

27.42

Step-by-step explanation:

Answer:

A) 2(x-3)(x-5)

Step-by-step explanation:

2x^2-16x+30

2(x^2-8x+15)

2(x-3)(x-5)

The factors for the given trinomial is 2(x-6)(x-5)

A trinomial is an algebraic expression that has three non-zero terms and has more than one variable in the expression.

Given is a trinomial, 2x²-16x+30

On factorizing,

= 2x²-16x+30

= 2x²-10x-6x+30

= 2x(x-5)-6(x-5)

= (2x-6)(x-5)

= 2(x-6)(x-5)

Hence, the factors for the given trinomial is 2(x-6)(x-5)

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Answer:

(4,4)

Step-by-step explanation:

1+3=4

3+1=4

(4,4)

Answer:

The same person does that to me and i heard to NOT mess with those link because they can find our address or something

Step-by-step explanation:

A factory inspector found flaws in 3 out of 18 wooden boxes. What is the experimental probability that the next wooden box will be flawed?

Write your answer as a fraction or whole number.

-------------------------------------------------------------------------------------------------------------

Remember, The experimental probability is the number of times an event occurs out of the total number of trials.

-------------------------------------------------------------------------------------------------------------

Flawed Boxes / Total

=3/18

=1/6

So The Answer is 1/6

The experimental probability that the next wooden box will be flawed is 1/6=0.167.

The experimental probability of an event is the ratio of the number of outcomes in which a specified events occurs to the total trials.

Mathematically, Experimental probability= f/n, where f is the number of times an event occurs, n is the total number of trials.

Total number of wooden boxes= 18

Total number of boxes that are flawed= 3

Therefore, required experimental probability = 3/18

                                                           =1/6

Hence, the experimental probability that the next wooden box will be flawed= 1/6

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Answer:

17 units

Step-by-step explanation:

Going from one point to the other, the change in x is 15 and that in y is 8.  Therefore, applying the Pythagorean Theorem,

distance = √(225 + 64) = √289 = 17

The distance between the two points is 17 units.

Answer:

Distance = √(x2 - x1)² + √(y2 - y1)²

Distance = √(7 - (-8))² + √(8 - 0)²

Distance = √(7 + 8)² + √(8)²

Distance = √(15)² + √(8)²

Distance = √(225 + 64)

Distance = √(289)

Distance = 17 unit

[tex] \\ [/tex]

20

Step-by-step explanation:

i belive

Answer:

See below (Siéntete libre de traducir al inglés)

Step-by-step explanation:

Given the parabolic equation is in the form of (y-k)²=4p(x-h), this is a horizontal parabola with a vertical directrix at x=h-p where (h,k) is the vertex and the focus is (h+p,k). Since p=2, then the directrix is x=3-2=1. The vertex would be (h+p,k) -> (3+2,2) -> (5,2). Refer to the graph.

Answer:

When stating that two triangles are congruent, use a congruence statement. The order of the letters is very important, as corresponding parts must be written in the same order. Notice that the congruent sides also line up within the congruence statement. One congruence statement can always be written six ways.

Step-by-step explanation:

Answer:

c= 1/ 90  f

Step-by-step explanation:

Answer: MANZANA

Step-by-step explanation: PIOJO

Answer:

correct

Step-by-step explanation:

don't change anything

2.4 cm

Step-by-step explanation:

10/4 = 6/x

x = width of reduced picture

24 = 10x (cross multiplication)

24/10 = x

2.4 = x

The width of the reduced picture is 2.4 cm.

Answer: 49 in^2

Step-by-step explanation:

Trapezoid area formula = (a+b/2) x h

So...

(5+9/2) x 7

= 49 in^2

[tex] \huge \boxed {\longmapsto\mathcal {\purple {Answer}}}[/tex]

Area of trapezoid :

[tex] \boxed{ \frac{1}{2} \times sum \: of \: parallel \: sides \times height }[/tex]

=》

[tex] \boxed {\frac{1}{2} \times (9 + 5) \times 7}[/tex]

=》

[tex] \boxed {\frac{1}{2} \times 14 \times 7}[/tex]

=》

[tex]\boxed{7 \times 7}[/tex]

=》

[tex]\boxed{49}[/tex]

[tex] \boxed {\mathfrak{area = 49 \:in {}^{2} }}[/tex]

Answer:

C

Step-by-step explanation:

Answer:

D. x = 11/c

Step-by-step explanation:

you add 4 to both sides so you can make the x by itself.

we are left with cx = 11

you divide c to both sides

Final Answer: x = 11/c

Answer:

77

Step-by-step explanation:

mean is also known as the average

to find the average you add up every data point and divide by number of data points.

74 + 75 + 80 + 76 + 75 + 81 + 78 = 539

539 / 7 = 77

Answer: 16

Step-by-step explanation:

Answer:

The mean is 70, that's all I know. Sorry!

Step-by-step explanation:

Here's how you find the mean:

1. Add together ALL NUMBERS. (which equals 560 in this case.)

2. DIVIDE by the amount of numbers there are. (So 560 ÷ 8 = 70)

3. There's your answer! The mean of these numbers is 70.

I really hope this helps! Have a great day\night!

Answer: Choice C

We can rotate the figure 180 degrees so that it lines up with its original image perfectly. In other words, the before and after would be identical images.

The rotational symmetry of a form explains why an item has the same shape when rotated on its own axis. The correct option is C.

The rotational symmetry of a form explains why an item has the same shape when rotated on its own axis. When turned 180 degrees or with specific angles, clockwise or anticlockwise, many geometrical forms appear to be symmetrical. Examples include squares, circles, hexagons, and more.

The shape that has a rotational symmetry is option C, which is a parallelogram.

Hence, the correct option is C.

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Answer:

im pretty sure it is .17

Step-by-step explanation:

Answer:

0.17

Step-by-step explanation:

I'm not entierly sure if there's like an equation or what not to this, but 0.17 is 17 hundreths.