Please Note: IMAGE BELOW IS NOT DRAWN TO SCALE!
Given: Point E is the midpoint of AC and DF
Prove: ADEA AFEC
C
F
А
B
B

Answer:

90% Confidence Interval = (5.532, 7.094)

Step-by-step explanation:

With a sample size of 14 cars, the average wait time is 6.313 minutes with a standard deviation of 1.6509 minutes. Construct a 90% confidence interval for the true average wait time for a car at the intersection between 4:00 PM and 5:00 PM. 1) (4.542, 8.084).2) (5.536, 7.09). 3) (-5.532, 7.094).4) (5.532, 7.094).5) (5.872, 6.754).

We are given the sample size = 14 cars

This sample size is small so instead of using z score , we would use the t score critical value

First we need to calculate our degree of freedom

Degrees of freedom = n - 1

= 14 - 1 = 13

The t score for 90% confidence interval with a degree of freedom of 13 =

= 1.771

Hence, Confidence Interval =

Mean ± t score × standard deviation/√n

= 6.313 ± 1.771 × 1.6509/√14

= 6.313 ± 1.771 × 0.4412215843

= 6.313 ± 0.7814034257

Confidence Interval

= 6.313 - 0.7814034257

= 5.5315965743

≈ 5.532

= 6.313 + 0.7814034257

= 7.0944034257

≈ 7.094

90% Confidence Interval = (5.532, 7.094)

The equation of the line of best fit that Brianna drew is: c. y = 2x + 5

Recall:

Thus:

Slope of a line (m) = change in y/change in x

Change in y = 2 units

Change in x = 1 unit

Slope = 2/1 = 2

The y-intercept is the point where the line of best fit intercepts the y-axis which is at y = 5.

y-intercept (b) = 5

Substitute b = 5 and m = 2 into y = mx + b

y = 2x + 5

Learn more about line of best fit on:

https://brainly.com/question/17143626

Answer:

c    ..)

Step-by-step explanation:

Answer:

[tex]\frac{5}{3} \times\frac{9}{19}[/tex]

Step-by-step explanation:

In order to simplify this equation you need to convert these whole number fractions into improper fractions and then use KCF. (Keep, Change, Flip)

[tex]1\frac{2}{3} \div2\frac{1}{9}[/tex]

Convert into improper fractions:

[tex]1\frac{2}{3} = 3\times1+2=\frac{5}{3}[/tex]

[tex]2\frac{1}{9} =9\times2+1=\frac{19}{9}[/tex]

(Remember to keep the denominators the same)

[tex]\frac{5}{3} \div\frac{19}{9}[/tex]

Now use KCF

[tex]\frac{5}{3} \div\frac{19}{9} = \frac{5}{3} \times\frac{9}{19}[/tex]

[tex]= \frac{5}{3} \times\frac{9}{19}[/tex]

Hope this helps.

Answer:

ITS C:D pls give brainliest

Step-by-step explanation:

add all it equals C, 16.25

Answer:

i can't really see to clear ..

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

1/4 is 20

20per is 16

20+16+28 is 64 minus 80 is 16

Answer:

C: 4cm, 8cm, 8cm

Step-by-step explanation:

The isosceles triangles have two sides that are the same.

hope this helped

bye

Answer:

C: 4cm, 8cm, 8cm

Step-by-step explanation:

bc i know it i think this the answer

Answer:

(A) 30772cm^2/s

(B) 153860cm^2/s

(C) 184632 cm^2/s

Step-by-step explanation:

We are given

speed of the ripple = 70cm/s

this speed is increasing the radius which means speed = radius /time

radius = speed*time

r= 70t

Now we know the area of the circle

A = π[tex]r^2[/tex]

this area will be increasing as ripples in water will spread out

upon differentiating

dA/dt = 2πr * [tex]\frac{dr}{dt}[/tex]

dA/dt = 2π*70t*70       ( r= 70t , dr/dt = speed = 70)

dA/dt = 9800π*t

(A) after 1 second

dA/dt = 9800π*1=9800π = 30772cm^2/s

(B) after 5 seconds

    dA/dt = 9800π*5 = 153860cm^2/s

(C) after 6 seconds

 dA/dt = 9800π*6 = 184632 cm^2/s

Answer: x=6/5

Step-by-step explanation:

Answer:

6/5

Step-by-step explanation:

Answer:

Choice D

Step-by-step explanation:

If you check each one plugging in your info into this you can get [tex]a^{2} +b^{2} =c^{2}[/tex] that 12² + 16² will equal 400 which is the same as 20².

Answer:

Answer: D 12,16,20

Step-by-step explanation:

The Pythagora's Theorem

On a right triangle with side lengths of a,b, and c, being c the hypotenuse, of the longest side, it follows that:

[tex]a^2+b^2=c^2[/tex]

The set {a,b,c} is often called a Pythagorean Triple.

Testing every option:

A

[tex]5^2+8^2=10^2[/tex]

[tex]25+64 = 100[/tex]

89 = 100

Since equality is false, 5,8,10 are not the side lengths of a right triangle.

B

[tex]3^2+5^2=7^2[/tex]

[tex]9+25 = 49[/tex]

34 = 49

Since equality is false, 3,5,7 are not the side lengths of a right triangle.

C

[tex]6^2+11^2=13^2[/tex]

[tex]36+121 = 169[/tex]

157 = 169

Since equality is false, 6,11,13 are not the side lengths of a right triangle.

D

[tex]12^2+16^2=20^2[/tex]

[tex]144+256 = 400[/tex]

400 = 400

Since equality is true, 12,16,20 could be the side lengths of a right triangle.

Answer: D 12,16,20

Answer:36 divided by 12=3

Step-by-step explanation:

Answer:

He uses 3 eggs.

Step-by-step explanation:

Divide 36/12, and that's how much he used each order.

Answer:

50 what

Step-by-step explanation:

Answer:

my cash app is Joy95H Suppose we wish to find the zeros of f(x) = x

3 + 4x

2 − 5x − 14. Setting f(x) = 0 results in the

polynomial equation x

3 + 4x

2 − 5x − 14 = 0. Despite all of the factoring techniques we learned1

in Intermediate Algebra, this equation foils2 us at every turn. If we graph f using the graphing

calculator, we get

The graph suggests that the function has three zeros, one of which is x = 2. It’s easy to show

that f(2) = 0, but the other two zeros seem to be less friendly. Even though we could use the

‘Zero’ command to find decimal approximations for these, we seek a method to find the remaining

zeros exactly. Based on our experience, if x = 2 is a zero, it seems that there should be a factor

of (x − 2) lurking around in the factorization of f(x). In other words, we should expect that

x

3 + 4x

2 − 5x − 14 = (x − 2) q(x), where q(x) is some other polynomial. How could we find such

a q(x), if it even exists? The answer comes from our old friend, polynomial division. Dividing

x

3 + 4x

2 − 5x − 14 by x − 2 gives

x

2 + 6x + 7

x−2 x

3 + 4x

2 − 5x − 14

−

x

3 −2x

2

6x

2 − 5x

−

6x

2 −12x)

7x − 14

− (7x −14)

0

As you may recall, this means x

3 + 4x

2 − 5x − 14 = (x − 2)

x

2 + 6x + 7

, so to find the zeros of f,

we now solve (x − 2)

x

2 + 6x + 7

= 0. We get x − 2 = 0 (which gives us our known zero, x = 2)

as well as x

2 + 6x + 7 = 0. The latter doesn’t factor nicely, so we apply the Quadratic Formula to

get x = −3 ±

√

2. The point of this section is to generalize the technique applied here. First up is

a friendly reminder of what we can expect when we divide polynomia

Step-by-step explanation:

回答:   正直わからない

説明:   私たちは愛する見知らぬ人ではありません

あなたはルールを知っています、そして私もそうです

完全なコミットメントは私が考えていることです

あなたは他の人からこれを取得しないでしょう

気分を伝えたいだけです

お奨めはあなたに理解させる

決してあなたをあきらめるつもりはない、決してあなたを失望させるつもりはない

走り回ってあなたを捨てるつもりはない

泣かせたり、さよならを言ったりしないでください

嘘をついてあなたを傷つけることは決してない

私たちは長い間お互いを知っていました

あなたの心は痛んでいますが、あなたはそれを言うには恥ずかしがり屋です

内部では、私たち二人は何が起こっているのかを知っています

私たちはゲームを知っていて、それをプレイするつもりです

そして、あなたが私にどのように感じているか尋ねれば

あなたが盲目すぎて見ることができないと私に言わないでください

決してあなたをあきらめるつもりはない、決してあなたを失望させるつもりはない

走り回ってあなたを捨てるつもりはない

泣かせたり、さよならを言ったりしないでください

嘘をついてあなたを傷つけることは決してない

決してあなたをあきらめるつもりはない、決してあなたを失望させるつもりはない

走り回ってあなたを捨てるつもりはない

泣かせたり、さよならを言ったりしないでください

嘘をついてあなたを傷つけることは決してない

（ああ、あきらめて）

（ああ、あきらめて）

（ああ）決して与えるつもりはない、決して与えるつもりはない（あなたをあきらめる）

（ああ）決して与えるつもりはない、決して与えるつもりはない（あなたをあきらめる）

私たちは長い間お互いを知っていました

あなたの心は痛んでいますが、あなたはそれを言うには恥ずかしがり屋です

内部では、私たち二人は何が起こっているのかを知っています

私たちはゲームを知っていて、それをプレイするつもりです

気分を伝えたいだけです

お奨めはあなたに理解させる

決してあなたをあきらめるつもりはない、決してあなたを失望させるつもりはない

走り回ってあなたを捨てるつもりはない

泣かせたり、さよならを言ったりしないでください

嘘をついてあなたを傷つけることは決してない

決してあなたをあきらめるつもりはない、決してあなたを失望させるつもりはない

走り回ってあなたを捨てるつもりはない

泣かせたり、さよならを言ったりしないでください

嘘をついてあなたを傷つけることは決してない

決してあなたをあきらめるつもりはない、決してあなたを失望させるつもりはない

走り回ってあなたを捨てるつもりはない

泣かせたり、さよならを言ったりしないでください

嘘をついてあなたを傷つけることは決してない™

Answer:

x^6

Step-by-step explanation:

Volume=w times height times length

Volume=x^2 times x^2 times x^2

x^2+2+2

x^6

Answer:

x^6 is volume

Step-by-step explanation:

So a volume of a cube is lenght times width times height.  

Or the cube of a side(number to the power of 3)

Let's say one of the sides is 7. Then the volume would be 7 times 7 times 7 or 7 cubed which is equal to 729.

Answer:

b

Step-by-step explanation:

Answer:

P(300 < p^ < 340) = 0.9876 or 98.76%

Step-by-step explanation:

We are given;

Population proportion; p = 80% = 0.8

Sample proportion; p1^ = 300/400 = 0.75 and p2^ = 340/400 = 0.85

Sample size: n = 400

z-score formula for sample proportion is;

z = (p^ - p)/(√(p(1 - p)/n)

Thus;

z1 = (0.75 - 0.8)/(√(0.8(1 - 0.8)/400)

z1 = -0.05/0.02

z1 = -2.5

z2 = (0.85 - 0.8)/(√(0.8(1 - 0.8)/400)

z2 = 0.05/0.02

z2 = 2.5

From online calculator of probability between 2 z-scores, we have;

P(-2.5 < z > 2.5) ≈ 0.9876

Answer: D. 30

Step-by-step explanation:

Given that:

63 have a car,

27 have a bike,

12 have a skateboard,

20 have a car and a bike,

8 have a car and a skateboard,

9 have a bike and a skateboard, and

5 have a car, a bike, and a skateboard.

Car and bike only :(20 - 5) = 15

Car and skateboard only = (8 - 5) = 3

Car only = 63 - (15 + 3 + 5) = 40

Bike and skateboard only = (9 - 5) = 4

Bike only = 27 - (15 + 5 + 4) = 3

Skateboard only = 12 - (3 + 5 + 4) = 0

Number of people in the survey do not own a car, a bike, or a skateboard: = x

(40+0+3+15+3+5+4+x) = 100

70 + x = 100

x = 100 - 70

x = 30

Answer:

Can u put a picture of the thing

Step-by-step explanation

Answer:

1

Step-by-step explanation:

Answer:

good for her / him but uh whats the question

Answer:

A

Step-by-step explanation:

Answer:

each freind would get 1/15 of the pie

Step-by-step explanation:

1/5 divide by 3 equals 1/15

Answer: The answer is 384 if your question is 12x1/2x64