helllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllp

Step-by-step explanation:

lets find distance

s=vt=150 Km

now lets find lauras average speed:

V=S/t=150/2=75 km/h

Answer:

SUBTRACT

Step-by-step explanation:

Answer:

The 90% confidence interval for the mean test score is between 77.29 and 85.71.

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 25 - 1 = 24

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 24 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.9}{2} = 0.95[/tex]. So we have T = 2.064

The margin of error is:

[tex]M = T\frac{s}{\sqrt{n}} = 2.064\frac{10.2}{\sqrt{25}} = 4.21[/tex]

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 81.5 - 4.21 = 77.29

The upper end of the interval is the sample mean added to M. So it is 81.5 + 4.21 = 85.71.

The 90% confidence interval for the mean test score is between 77.29 and 85.71.

Answer: 1000

Step-by-step explanation:

Answer:

1,000

Step-by-step explanation:

plz mark brainliest

Answer:

it is -1

Step-by-step explanation:

2= 410x+14⇒4x+8=10x+14   ⇒6x=−6    ⇒x=−1  

Answer:

20%

Step-by-step explanation:

130/650=0.2

Answer:

0.650 and 0.130

Step-by-step explanation:

Answer:

the length of line segment KJ is 3√5 units.

The length of the line segment KJ is 3√5 units.

Right angles are the angles formed by two rays which is equal to 90 degrees.

Given a triangle KLJ.

A perpendicular line is drawn from the vertex K to it's opposite side LJ at a point M, which in turn forms a right angled triangle KMJ.

For right angled triangle, we have a theorem named Pythagoras Theorem which states that,

Hypotenuse² = Base² + Altitude²

Here base is the line segment MJ and altitude is KM and the hypotenuse is the line segment KJ

Length of base = 3 units

Length of altitude = 6 units

By Pythagoras theorem,

Hypotenuse² = Base² + Altitude²

                      = 3² + 6²

                      = 9 + 36

                      = 45

Hypotenuse = [tex]\sqrt{45}[/tex]

                     = √(9 × 5)

                     = √9 × √5

                     = 3√5

Hence the length of the line segment KJ is 3√5 units.

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Answer:

THE ANSWER IS 135!!!

Step-by-step explanation:

Pretend 15 is 15/1. Then use cross multiplication to divide the two fractions.

15/1 divided by 1/9 = 15/1 * 9/1 = 15 *9 = 135

Answer:

yes

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

Answer:

Because the spaces in between the keys are lower than the keys itself so its harder to clean those spaces

Step-by-step explanation:

the spaces in between the keys are lower than the keys itself so its harder to clean those spaces

Answer:

The correct answer is 2.75

Step-by-step explanation:

I hope I saved you from internal pain! (∩^o^)⊃━☆(ﾉ◕ヮ◕)ﾉ*:･ﾟ✧✪ ω ✪

Answer:

let the angle be x and the complementary angle be y

so, x+y=90 and given,

x=y-80

solving both the equations,

x = 5

y = 85

so the angles are 5 and 85

Answer:

m∠G = m∠H = 50

m∠I = 80

Step-by-step explanation:

m∠H = m∠G              {Isosceles triangle property}

5x - 5 = 3x + 17               {Subtract 3x from both sides}

5x - 3x - 5 = 17               {Combine like terms}

    2x - 5  =  17                 {Add 5 to both sides}

         2x  = 17 + 5

         2x = 22

           x = 22/2

x = 11

m∠H = 5x - 5

        = 5*11 - 5

         = 55 - 5

m∠H = 50

m∠G = m∠H = 50

m∠G + m∠H + m∠I = 180   {Angle sum property}

50 + 50 + m∠I = 180

     100 + m∠I   = 180

               m∠I  = 180 - 100

              m∠I = 80

Answer:

m∠G = m∠H = 50

m∠I = 80

Step-by-step explanation:

Answer:

You need to take a screenshot of it becasue that doesnt make any snese

Step-by-step explanation:

Answer:

I need numbers to do a step by step

but the formula for the surface area of a cone.

Firstly, you work out the circle, pi x radius squared.

then you work out the cone

You can now use the measurement of the side to find the area of the cone. The formula for the area of a cone is 3.14 times the radius times the side (πrl).

So the surface area of the cone equals the area of the circle plus the area of the cone and the final formula is given by:

SA = πr2 + πrl

Answer:

rotation

by rotating the figure clockwise 180 degrees you would get the same thing as reflected it over the x and then the y axis

In most cases; when an object is transformed, the orientation and layout of the object changes. The one transformation that will accomplish this is 180 degrees rotation.

Let the point on the figure be (x,y)

When reflected over the x-axis, the transformation rule is:

[tex](x,y) \to (x,-y)[/tex]

When reflected over the y-axis, the transformation rule is:

[tex](x,y) \to (-x,y)[/tex]

This means that:

[tex](x,-y) \to (-x,-y)[/tex]

So, the reflection is:

[tex](x,y) \to (x,-y) \to (-x,-y)[/tex]

The single transformation that can achieve this is: rotation by 180 degrees.

The rule of transformation is:

[tex](x,y) \to (-x,-y)[/tex]

Hence, one transformation that would accomplish the reflections is: 180 degrees rotation.

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Answer: D

Step-by-step explanation:

Sofia's account balance in 7 years will be $11,726.12

From the question, we are to determine Sofia's account balance in 7 years

Using the compound interest formula,

[tex]A = P(1+ \frac{r}{n} )^{nt}[/tex]

Where A is the amount

P is the principal

r is the rate

n is the number of times compounded

and t is the time in years

From the given information,

P = $8,000

r = 5.5% = 0.055

n = 4

t = 7

Putting the parameters into the equation, we get

[tex]A = 8000(1+ \frac{0.055}{4} )^{4\times 7}[/tex]

[tex]A = 8000 ( 1+ 0.01375)^{28}[/tex]

[tex]A = 8000 ( 1.01375)^{28}[/tex]

A = $11,726.12

Hence, Sofia's account balance in 7 years will be $11,726.12

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Answer:

sfgsdfgg shdfhjksdfj

Step-by-step explanation:

tdfsg sdyhfgjsdhgksj sfbsfghsk

Answer:

x^2+12x+36=1+36

Step-by-step explanation:

you divide the 12 by 2 which is 6 and then square it (36)

Answer:

x^2+12x+36=1+36

On third day 1/2 of the total snow falls.

In Mathematics, fractions are represented as a numerical value, which defines a part of a whole. A fraction can be a portion or section of any quantity out of a whole, where the whole can be any number, a specific value, or a thing.

Given that, total of 2 feet of snow falls over three days.

On the first day, 1/6 of the total snow falls. On the second day, 7/12 of the total snow falls.

So, the snow fall on third day will be

= 2(1-1/6-7/12)

= 2((12-2-7)/12)

= 2(3/12)

= 2(1/4)

= 1/2

Therefore, on third day 1/2 of the total snow falls.

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"Your question is incomplete, probably the complete question/missing part is:"

A total of 2 feet of snow falls over three days. On the first day, 1/6 of the total snow falls. On the second day, 7/12 of the total snow falls. Find the fraction of snow fall on third day.

Answer:

112

Step-by-step explanation:

cause if you calculated it it will be 112.2222 so the closest thing is 112

Answer:

D

Step-by-step explanation:

I don´t really understand.

I am so sorry!

Answer:

The answer is a 150% increase!

Step-by-step explanation:

Answer:

Step-by-step explanation:

It's asking for those who have the same amount of strikes to the amount of games. For example Jenna gas played 7 games, and Elena has gotten 7 strikes. Their asking how many members have gotten the same amount of strikes to the amount of games they've played.

This should be a big help.

Answer:

−27u + 8v

Explanation:

−3(4u − v) − 5( − v + 3u)

[ Distribute ]

= (−3)(4u) + (−3)(−v) + (−5)(−v) + (−5)(3u)

= −12u + 3v + 5v + −15u

[ Combine Like Terms ]

= −12u + 3v + 5v + −15u

= (−12u + −15u) + (3v + 5v)

= −27u + 8v

- PNW

Answer:

Surface area = 92 ft²

Step-by-step explanation:

Formula to find the surface area of a rectangular prism is,

Surface area = 2(lb + bh + hl)

Here, l = length of the prism

b = width of the prism

h = height of the prism

By substituting the measures of the sides given in the picture,

Surface area = 2(2×3 + 3×8 + 8×2)

                      = 2(6 + 24 + 16)

                      = 2(46)

                      = 92 square feet

Therefore, surface area of the given rectangular prism is 92 ft².