Time in minutes (t)
Which TWO choices are accurate based on the information?

Answer:

The margin of error will be "0.65". A further explanation is provided below.

Step-by-step explanation:

The given values are:

n = 343

x = 110

At 99% confidence level,

[tex]\alpha = 1-99[/tex]%

  [tex]=1-0.99[/tex]

  [tex]=0.01[/tex]

then,

[tex]\frac{\alpha}{2} =\frac{0.01}{2}[/tex]

  [tex]=0.005[/tex]

or,

[tex]Z_{\frac{\alpha}{2} }=Z_{0.005}[/tex]

     [tex]=2.576[/tex]

Now,

The point estimate will be:

⇒  [tex]\hat{P}=\frac{x}{n}[/tex]

⇒      [tex]=\frac{110}{343}[/tex]

⇒      [tex]=0.321[/tex]

or,

⇒  [tex]1-\hat{P}=1-0.321[/tex]

⇒            [tex]=0.679[/tex]

The margin of error will be:

⇒  [tex]E=Z_{\frac{\alpha}{2} }\times \sqrt (\frac{(\hat{P}\times (1 - \hat{P})) }{n} )[/tex]

On substituting the above values, we get

⇒      [tex]=2.576\times \sqrt{\frac{0.321\times 0.679}{343} }[/tex]

⇒      [tex]=2.576\times \sqrt{\frac{0.217959}{343} }[/tex]

⇒      [tex]=0.065[/tex]

hence,

⇒  [tex]\hat{P}-E<p<\hat{P}+E[/tex]

⇒  [tex]0.321-0.065<p<0.321+0.065[/tex]

⇒  [tex]0.256,0.386[/tex]

Answer:

Consecutive angles of a parallelogram are congruent.

Answer:

[tex]\frac{X}{100} =\frac{600}{800} \\\\X = \frac{6}{8} \times 100 = 75[/tex]

Answer:

The final answer is 0

Step-by-step explanation:

1/3 + 2/3 = 1 which means Ravi and Hasan ate the whole thing

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

Answer: Percentage of infected trees =2%

Step-by-step explanation:

Number of Infected trees =7

Number of healthy trees=43

Total number of trees in the orchard=43+7=50

Percentage of infected trees =Number of Infected trees/Total number of tress in the orchard x 100

7/50 x 100 =2%

Answer:

azesrdftgyuh

Step-by-step explanation:

dxcfvghbj

Answer:

i think the answer is b

Step-by-step explanation:

the others just dont feel right

Answer:

60

Step-by-step explanation:

If  Isabelle sells 150 out of 250 ears of corn. Then the percentage of the ears of corn she sold will be 60%.

The amount of something is expressed as if it is a part of the total which is a hundred. The ratio can be expressed as a fraction of 100. The word percent means per 100. It is represented by the symbol ‘%’.

Every morning she starts with 250 ears of corn.

On Saturday, Isabelle sells 150 out of 250 ears of corn.

Then the percentage of the ears of corn she sold will be

[tex]\rm P = \dfrac{150}{250} \times 100\\\\P = 15 \times 4\\\\P = 60 \%[/tex]

More about the percentage link is given below.

https://brainly.com/question/8011401

#SPJ2

Answer:

hope it helps

stay safe healthy and happy.

Answer:

-12/13

Step-by-step explanation:

Given,

-8/13+(-4/13)

=-8/13-4/13

=-12/13

Answer:

Hello! answer: 7

Heres an image to explain I hope this helps you!

Answer:

i belive th answer is 58

Step-by-step explanation:

so you have 3 right angles so thais 90 x 90x90

Answer:

A.... X=3

Step-by-step explanation:

Answer:

y+1=-3(x+2)

Step-by-step explanation:

point-slope form is the formula y-y1=m(x-x1), where (x1, y1) is a point and m is the slope

we are given a point (-2, -1) and a slope of -3

all we really need to do is substitute the given into the formula

remember: since the formula gives subtraction, we're going to be subtracting, even though we have negative numbers

substitute -2 as x, -1 as y and -3 as m

y--1=-3(x--2)

we can simplify this equation:

y+1=-3(x+2)

Hope this helps!

Answer:

C: 22 points.

Step-by-step explanation:

Answer:

★ Given :

Cost of 50 chickens and 30 ducks = $ 550

Cost of 44 chickens and 36 ducks = $ 532

★ To find :

Cost of chicken and duck

★ Solution :

Assume :

Cost of chicken = x

Cost of duck = y

According to question :

50x + 30y = 550 ......(1)

44x + 36y = 532......(2)

1) - (2)

(50x + 30y) - (44x + 36y) = 550 - 532

50x + 30y - 44x - 36y = 18

6x - 6y = 18

6(x - y) = 18

x - y = 18/6

→ x - y = 3 ....(3)

In equation 1 ,

50 x + 30y = 550

taking 10 common

10(5x + 3y) = 550

5x + 3y = 550/10

5x + 3y = 55

by taking 3 common

3(5/3 x + y) = 55

by dividing 3 on both sides

5/3x + y = 55/3 .....(4)

(3) + (4)

x - y + 5/3 x + y = 3 + 55/3

x + 5/3 x = 64/3

8/3 x = 64/3

by multiplying 3 on both sides

8x = 64

x = 64/8

→ x = 8

→ Cost of chicken = $ 8 ..

by putting value of x in equation 3

x - y = 3

8 - y = 3

y = 8 - 3

→ y = 5

→ Cost of ducks = $5..

Step-by-step explanation:

mrk me brainliest plz

Answer:

1)   30 in²

2)   60 in²

Step-by-step explanation:

a = (1/2)bh

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

h = 4

b = 15

a = 1/2 * 4 * 15

a = 30 in²

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

h = 8

b = 15

a = 1/2 * 8 * 15

a = 60 in²

Answer: look down below

Step-by-step explanation:

BEFORE

91+87+100+88+95+91=552

552\6=92

Median=92

the 6 is how much data points we have

AFTER

91+87+100+88+95+91+98+100+88+86=924

924/10=92.4

the 10 represnts how many data points we have now

MEDIAN=92.4

the median will be increased by 0.4

Answer:

Choice C, 761 m

Step-by-step explanation:

let horizontal distance be x

in the right triangle, cos= adj/hyp

cos(18)=x/800

x=cos(18)×800= 760.845≈ 761

Answer: b

Step-by-step explanation:

I can't see the question

Answer:

The true statement is;

B. The total surface area is multiplied by 2.25

The volume is multiplied by 3.375

Step-by-step explanation:

By scale drawing proportionality, we have;

The amount by which all the dimensions of the cylinder are multiplied to create an image of the cylinder = 1.5

∴ The scale factor between the original cylinder and the image of the cylinder, S.F. = 1.5

By rule, we have;

The area factor of the surface area = S.F.² = 1.5² = 2.25

Therefore;

The total surface area of the original cylinder is multiplied by 2.25 to get the total surface area of the image of the cylinder

By rule, we have;

The volume factor = S.F.³ = 1.5³ = 3.375

Therefore;

The volume of the original cylinder is multiplied by 3.375 to find the volume of the image of the cylinder.

Answer:

B

Step-by-step explanation:

Answer:

3x-2

Step-by-step explanation:

(-7x+6)-(-10x+8)

open the parenthesis

-7x+6+10x-8

combine like terms

3x-2

Answer:

24m-28

Step-by-step explanation:

I hope this helps!

answer:

the simplified version of this is: 24m-28

Answer:

Step-by-step explanation:

POOP THEN PEEEEEE

Answer:

40.4

Step-by-step explanation:

I used a calculator

Answer:

12m

Step-by-step explanation:

its similar triangles the opposite is always 2times the side.

Answer:

A)

Step-by-step explanation:

The starting balance is $35

after one game purchase, the balance is 35-1.75=33.25

after two game purchases, the balance is 35-(1.75*2)=31.50

Answer:

I found 1 and its 18(6-12n)

Is this by chance a multiple choice question?

Step-by-step explanation: