students recorded the total number of pages and chapters in each of several books on the scatterplot. Based on the sbcatterplot, which is the best prediction of the number of chapters in a book with 200 pages

Answer:

[tex]-2a^2-2a+11[/tex]  

Step-by-step explanation:

To solve the question, use the given values of the variables and substitute them into the given expression.  

We know that [tex]C = 2a^2-5[/tex] and [tex]D = 3-a[/tex]. With these values, we need to find [tex]2D-C[/tex]. So, substitute [tex]2a^2-5[/tex] for the [tex]C[/tex] and [tex]3-a[/tex] for the [tex]D[/tex] in that expression. Then, solve:

[tex]2D-C\\\\= 2(3-a)-(2a^2-5)\\= 6-2a-2a^2+5\\= -2a^2-2a+11[/tex]

Thus, [tex]2D-C[/tex] equals [tex]-2a^2-2a+11[/tex].

Answer:

1

Step-by-step explanation:

first, you have to combine the two equations.

f(x)+ g(x)

3x^2 +4x+2= (that haha)

now substitute -1 for x

3(-1)^2 +4(-1)+2

(3×1) +(-4)+2

3-4+2

=1

HOPE IT HELPS YOU :)

Answer:

Diameter = 19.33

Step-by-step explanation:

Imaging a radius line from O to the endpoints of the 7. call this line R.

Label the part of the vertical line from O to the 90 degree intersection y.

Now you have a right triangle.

Using the Pythagorean theorem:

R² = 7² + y²

also

y = R - 3

substitute for y:

R² = 49 + (R-3)²

R² = 49 + R² - 6R + 9

simplify:

0 = 58 - 6R

6R = 58

R = 9.6667

Diameter = 2(9.6667) = 19.33

Answer:

Step-by-step explanation:

From the given information, it is evident that there is no assurance that the value of the mutual funds will give, and perhaps by looking at the trend, there is a net expected value of (10% - 22% + 12%) = 0% which literally doesn't differ from the what is given by the bank is a guaranteed one. From the perspective of decision theory, the best option is to use a bank because we would likely need to go for a guaranteed interest as opposed to going for an unexpected share.

Answer: -3

Step-by-step explanation:

2 + 3(x) = -7

-2            -2

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

3x = -9

x = -3

Answer:

The answer is 20/3

Step-by-step explanation:

(5 x 1 ) + ( 5 x 1/3)

5 + ( 5 × 1/3 )

5 + 5/3 = 20/3

Options :

A.) To avoid bias

B. To control for confounding variables

C. To produce treatment groups with similar characteristics

D. To generalize the experiment results to all freshman math students

Answer:

To avoid bias

To generalize the experiment results to all freshman math students

Step-by-step explanation:

One of the most common problems with statistical experimental research is the issue posed by bias. Either selection bias or assignment bias. Bias creeps into our experiment when one experimental group is more favored than the other. This means that the strategy employed is not totally random. In the experimetal design explained above, students were randomly assigned to group in other to avoid bias. This random assignment ensures that all samples have equal probability of being assigned to any of the two groups.

Randomized experimental designs also allows for making a good estimate of the population parameter fromnthe sample statistic

Answer: 17500 meters

Step-by-step explanation: 7 times 2.5 is 17.5 and one meter is 0.001 kilometers so

17.5 in meters is 17500.

Answer:

3.

a=-1

a=-2

5.

n=-6

n=-3

8.

n=-5

n=-3

Step-by-step explanation:

3. separate into probable cases

[tex]a + 2 = 0\\ a + 1 = 0[/tex]

5.

[tex] {n}^{2} + 6n - 3n - 18 = 0 \\ [/tex]

factor out n from the expression

factor out -3 from the expression

[tex]n \times (n + 6) - 3(n + 6) = 0[/tex]

factor out n+6 from the equation

[tex](n + 6) \times (n - 3) = 0[/tex]

separate into probable cases

[tex]n + 6 = 0\\ n - 3 = 0[/tex]

solve the equations

[tex]n = - 6 \\ n = 3[/tex]

8.

[tex]n ^{2} + 5n + 3n + 15 = 0[/tex]

factor out n and 3 from the expression

[tex]n \times (n + 5) + 3(n + 5) = 0[/tex]

factor out n+5

[tex](n + 5) \times (n + 3) = 0[/tex]

separate into probable cases

[tex]n + 5 = 0 \\ n + 3 = 0[/tex]

solve the equations

[tex]n = - 3 \\ n = - 3[/tex]

Answer:

0.41665 = 41.665% probability that on the third trial you will toss a coin

Step-by-step explanation:

First trial: Toss the coin

The following outcomes end up with a coin being tossed on the third trial.

Tails on the first and second trial(each with 0.5 probability).

Heads on the first trial(0.5 probability) and 4 or 5 on the die on the second trial(6 sided die, so 2/6 = 1/3 = 0.3333 probability).

What is the probability that on the third trial you will toss a coin

[tex]p = 0.5^2 + 0.5*0.3333 = 0.41665[/tex]

0.41665 = 41.665% probability that on the third trial you will toss a coin

Answer:

See attached.

Step-by-step explanation:

The measure of the largest angle is 74°

Step-by-step explanation:

there it is

and if u need more help tell me

Answer:

x1 = -2, x2 = 8

Step-by-step explanation:

You can first divide both sides of the equation by 2 so now you have:

I 2x - 6 I = 10

Then use the absolute value definiton and rewrite it into two separate equations:

1.) 2x - 6 = -10

2.) 2x - 6 = 10

From here you can solve both equations:

1.) x = -2

2.) x = 8

i hoped this helps

Answer:

c

Step-by-step explanation:

as far as I can see

Answer:

Right triangle

Step-by-step explanation:

Properties for acute, obtuse or right triangle,

1). Given triangle will be a right triangle if,

   Hypotenuse² = (Leg 1)² + (Leg 2)²

2). Triangle will be an acute triangle if,

   (Largest side)² < (leg 1)² + (leg 2)²

3). Triangle will be an obtuse triangle if,

   (Largest side)² > (leg 1)² + (leg 2)²

Now we apply these properties in the given triangle,

(Largest side)² = (√11105)²

                        = 11105

(leg 1)² = (76)²

           = 5776

(leg 2)² = (73)²        

            = 5329

Since 11105 = 5776 + 5329 (First Property)  

11105 = 11105

Therefore, given triangle is a right triangle.

Answer:

=5y^2+2y+10

Step-by-step explanation:

2y−3y2+8y2+10

Simplify the equation to get whole numbers, multiply the like terms

I tried my best!

Answer:

The answer is 336cm

Step-by-step explanation:

Multiply 24 & 14

Answer:

0.16

Step-by-step explanation:

Its 0.16 because it would be easiest to make 8/50 into 16/100 to make it easier to turn into a decimal.

Answer:

In math the word "of" is multiplication.

1/3 of 24 ---> 1/3 × 24 = 8

1/4 of 24 ---> 1/4 × 24 = 6

1/6 of 24 ---> 1/6 × 24 = 4

*Answers are bolded*

Hope this helps, thank you :) !!

Answer:

Step-by-step explanation:

1/3 of 24 = 7.9999

1/4 of 24 = 6

1/6 of 24 = 4

Answer:

Step-by-step explanation:

I think its B, (30)

Answer:

-40

Step-by-step explanation:

(-7 + 2)(8)

(-5)(8)

-40