If using the method of completing the square to solve the quadratic equation x2+14x-14=0, which number would have to be added to "complete the square"?

Answer:

17is the truth

Step-by-step explanation:

Answer:

Step-by-step explanation:

I dont see The figure to hepl you

Answer:

[tex]7y-10[/tex]

Step-by-step explanation:

[tex]9y-\frac{1}{2}\left(4y+20\right)[/tex]

To simplify this expression, first use the distributive property to distribute [tex]\frac{1}{2}[/tex].

[tex]9y-\frac{1}{2}(4y)+-\frac{1}{2}(20)[/tex]

Simplify.

[tex]9y+-2y+-10[/tex]

Combine like terms, [tex]9y[/tex] and [tex]-2y[/tex].

[tex]7y-10[/tex]

The simplification of [tex]9y-\frac{1}{2}(4y+20)[/tex] is [tex]7y-10[/tex].

I hope this helps ^^

Good luck

Answer:

3000 in3 ? I haven't actually done this i-ready before- but I believe it's

Width x Length x Height = Final result?

Step-by-step explanation:

Answer:

+9-12

==3

Step-by-step explanation:

when u multiply - and + it will always be -

Answer:

To simplify this, it is simply.

9 - 12

Because the + means its a positive.

9 - 12 = - 3

Answer:

P(X, Y) = 1/(20.398 ) if X ∈ (2, 8.2) and Y ∈ (3.01, 6.3)

P(X, Y) = 0 if  X ∉ (2, 8.2) and Y ∉ (3.01, 6.3)

Step-by-step explanation:

We know that the possible values of X (all with the same probability) are:

2 < X < 8.2

And for Y we have the range (also uniform):

3.01 < Y < 6.3

Then we have a rectangle of area.

(8.2 - 2)*(6.3 - 3.01) = 20.398

Such that the probability for all the points inside the rectangle should be exactly equal, then we will have:

P(X, Y) = 1/(20.398 ) if X ∈ (2, 8.2) and Y ∈ (3.01, 6.3)

Such that if we integrate this in the given region, the integral will be equal to 1, as we should expect.

And zero if the point is outside that region, this is:

P(X, Y) = 0 if  X ∉ (2, 8.2) and Y ∉ (3.01, 6.3)

Answer:

.01 + .3 = 0.31

Step-by-step explanation:

[tex]\huge{ \mathfrak{ \underline{question : }}}[/tex]

Select the two binomials that are factors of this trinomial.

[tex]x_2 + 8x + 12[/tex]

[tex]\huge{ \mathfrak{ \underline{Answer : }}}[/tex]

We got the factors as :

[tex]A. \: (x + 6)[/tex]

and

[tex]D. \: (x + 2)[/tex]

[tex] \#TeeNForeveR[/tex]

Answer:

A&D

Step-by-step explanation:

Answer:

The 95% confidence interval for the proportion of residents who think traffic is getting worse in their community is (0.2978, 0.3630).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the z-score that has a p-value of [tex]1 - \frac{\alpha}{2}[/tex].

In a survey of 802 U.S. adult drivers, 265 state that traffic is getting worse in their community.

This means that [tex]n = 802, \pi = \frac{265}{802} = 0.3304[/tex]

95% confidence level

So [tex]\alpha = 0.05[/tex], z is the value of Z that has a p-value of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].

The lower limit of this interval is:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3304 - 1.96\sqrt{\frac{0.3304*0.6669}{802}} = 0.2978[/tex]

The upper limit of this interval is:

[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3304 + 1.96\sqrt{\frac{0.3304*0.6669}{802}} = 0.3630[/tex]

The 95% confidence interval for the proportion of residents who think traffic is getting worse in their community is (0.2978, 0.3630).

Step-by-step explanation:

[tex]time = \frac{(final \: - \: initial \: displacement)}{(final - initial \: velocity)} \\ time = \frac{0 - 120}{0 - 8} \\ time = 15 \: seconds[/tex]

Answer:

The last one.

Step-by-step explanation:

It's the one that has a lot of points (from 11-16) and then one point just chilling on 5. That one point is the outlier. Hope this helps! Have a nice day :)

Answer:

3.8×10^7= 38000000

1.9×10^6= 1900000

38000000÷1900000= 20

the population of California is 20 greater than the population of Nebraska

Answer:

C. 63/100

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

49.12 in²

Step-by-step explanation:

The composite figure here is a semicircle and a triangle :

Area of triangle = 1/2 * base * height

Base of triangle = 8 inches ; height = 6 inches

Area of triangle = 1/2 * 8 * 6 = 48/2 = 24 in²

Area of semicircle = 1/2 * πr²

Radius = 4 in

Area of semicircle = 1/2 * 3.14 * 4² = 25.12 in²

Area of composite figure :

Area of triangle + Area of semicircle

(24 in² + 25.12 in²)

= 49.12 in²

Answer:

B

Step-by-step explanation:

Answer:

1568 grams

Step-by-step explanation:

32 x 28 = 896 ][ 16 x 28 = 448 ][ 8 x 28  = 224 ; 896 + 448 + 224 = 1568

Answer:

53

Step-by-step explanation:

Sum of interior angles of a pentagon = 540°

Therefore,

2x° +2x° + 3x° + 3x° + 10 = 540°

10x° + 10° = 540°

10x° = 540° - 10°

10x° = 530°

10x = 530

x = 530/10

x = 53

Given:

Fixed salary = $1400

Additional salary = $500 each time he sells a car.

To find:

The equation for the situation and how much money he will make if he sells 7 cars.​

Solution:

Let y be the total salary of the salesman after selling x cars.

He will earn an extra $500 each time he sells a car. So, extra money earned by him after selling x cars is 500x.

Total salary = Fixed salary + Additional salary

[tex]y=1400+500x[/tex]

Substituting [tex]x=7[/tex], we get

[tex]y=1400+500(7)[/tex]

[tex]y=1400+3500[/tex]

[tex]y=4900[/tex]

Therefore, the required equation for the given situation is [tex]y=1400+500x[/tex] and the salesman will earn $4900 if he sells 7 cars.​

Answer:

>

Step-by-step explanation:

41/8 = 5.125

Answer: The result is statistically significant, which implies that spraying the corn plants with the new type of fertilizer does increase the growth rate.

Step-by-step explanation:

The statement that is true about the result considering a significance level of 5% is B. The result is statistically significant, which implies that spraying the corn plants with the new type of fertilizer does increase the growth rate.

This refers to the analysis of numbers and data to make an inference about a thing.

Hence, we can see that based on the research made about the growth rate of corn, we can see that from the significance level of 5%, we can see that spraying the corn plants with the new type of fertilizer does increase the growth rate.

Read more about statistics here:

https://brainly.com/question/12150562

#SPJ2

9514 1404 393

Answer:

  735.6 in³

Step-by-step explanation:

The formula for the volume of a sphere is ...

  V = 4/3πr³ . . . . where r is the radius

The radius is half the diameter, so we can write this in terms of diameter as ...

  V = (4/3)π(d/2)³ = (π/6)d³

Using the given diameter, the volume is ...

  V = (π/6)(11.2 in)³ ≈ 735.6186 in³

The volume is about 735.6 cubic inches.

Answer:

Step-by-step explanation:

The probability that a birth in the United States is male during 2018 is 0.511. So there are slightly more males than females born.

In 300  simulated trials, 171 of the births are female and 129 are male. More females are born so it is not consistent with the model.

The expected number of male birth for 300 trials should be 300*0.511 = 153.

The expected number of female = 300-153 = 147

The answer is the first one, A = 0.5bh. I hope this helps, have a good day!

Answer:

56.5

Step-by-step explanation:

Circumference = [tex]\pi d[/tex]

C = 3.14(18) = 56.52

Answer:C.

each pair of triangles below

UT/IF:TQ/IK:IQ/KF

14/44.8:20/64

5/16:5/16

since they are similar

D.

<R=<K=96°

<J=<X=32°

<Q=<K=52°

since corresponding angle are equal.

they are similar

JR/XV:RQ/KV:JQ/XK

similarity condition are:

the corresponding side are proportional and angle are equal.

9514 1404 393

Answer:

  c. no

  d. yes; AA postulate

Step-by-step explanation:

c. The marked sides have the same ratio ...

  20/14 = 10/7 = 64/44.8

However, the angle between them is not marked as being the same. We cannot conclude the triangles are similar.

__

d. Missing angle R is 180° -32° -52° = 96°. So, two of the angles in the triangles match. (32° and 96°) ∆RQJ ~ ∆VKX by the AA postulate.

Answer:

4 and 6

Step-by-step explanation:

they are made with lines of the other angles

Answer:

I think the exterior angles are angle 4, angle 6, and angle 2.

Step-by-step explanation:

They are on the outside.

Step-by-step explanation:

36A) AB = 4/ sin 30° = 4/ 0.5 = 8 cm

36B) AC = 4/ tan 30° = 4/ 0.577 = 6.9 cm

36C) BD = 4/sin 45° = 4/ 0.707 = 5.7 cm

36D) area of ∆ABC = ½×6.9×4= 13.8 cm²

36E) sin A = sin 30° = 0.5