help worth 20 points due in 10 minutes

Answer:

3.7142

Step-by-step explanation:

Answer:

3 remainder 15

Step-by-step explanation:

your welcome

Answer:

If the given equation is

y = 6x

comparing with y = kx

so k = 6

Thus, option C is correct.

Step-by-step explanation:

We know when y varies directly with x, with a constant of variation k

then the equation is

y ∝ x

y = kx

where k is the 'constant of proportionality.

k = y/x

If the given equation is

y = 6x

comparing with y = kx

so k = 6

Thus, option C is correct.

Answer:

there can be 13 glasses of water

Step-by-step Explanation:

5.2/0.4 = 13

Answer:

0.9586

Step-by-step explanation:

From the information given:

7 children out of every 1000 children suffer from DIPG

A screening test designed contains 98% sensitivity & 84% specificity.

Now, from above:

The probability that the children have DIPG is:

[tex]\mathbf{P(positive) = P(positive \ | \ DIPG) \times P(DIPG) + P(positive \ | \ not \DIPG)\times P(not \ DIPG)}[/tex][tex]= 0.98\imes( \dfrac{7}{1000}) + (1-0.84) \times (1 - \dfrac{7}{1000})[/tex]

= (0.98 × 0.007) + 0.16( 1 - 0.007)

= 0.16574

So, the probability of not having DIPG now is:

[tex]P(not \ DIPG \ | \ positive) = \dfrac{ P(positive \ | \ not DIPG)\timesP(not \ DIPG)} { P(positive)}[/tex]

[tex]=\dfrac{ (1-0.84)\times (1 - \dfrac{7}{1000}) }{ 0.16574}[/tex]

[tex]=\dfrac{ 0.16 ( 1 - 0.007) }{0.16574}[/tex]

= 0.9586

Answer:

Answer is D.

Step-by-step explanation:

[tex]v^{2} =\frac{3P}{mn}\\[/tex]

Multiply both sides by m.

[tex]mv^{2} =\frac{3P}{n}\\[/tex]

Divide both sides by [tex]v^{2}[/tex].

[tex]m =\frac{3P}{nv^{2}}\\[/tex]

Answer:

A histogram shows data that is skewed to the right. Which most likely describes the relationship between the mean and the median? The mean is greater than the median. The rightmost values in the data set raise the mean more than the median.

Answer:

8,000

Step-by-step explanation:

i think because 100000/12

Answer:

Step-by-step explanation:

Given that :

_______low tech _____consumer products

n _______14 ___________ 12

Mean ___ 157 __________218

Variance _ 1563 ________1602

The point estimate of the difference between the means of the two populations :

Difference between the sample mean of low tech and consumer product

Sample mean (low tech) - sample mean (consumer product)

157 - 218

= - 61

The equation of the line that passes through (4.5, -1.4) and has a slope of 1.9, in point-slope form, is: B. y + 1.4 = 1.9(x − 4.5).

Where we have a given point on a line as (a, b), and the line has a slope of m, the equation of the line in point-slope form is given as y - b = m(x - a).

Given the following:

A point = (4.5, -1.4)

Slope (m) = 1.9

To write the equation of the line in point-slope form, substitute a = 4.5, b = -1.4, and m = 1.9 into y - b = m(x - a):

y - (-1.4) = 1.9(x - 4.5)

Simplify

y + 1.4 = 1.9(x - 4.5)

The answer is therefore: B. y + 1.4 = 1.9(x − 4.5)

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Answer:

7ft ? Step-by-step explanation: i mean if u go down 12 and come up 5 thats subtraction so 12-5 is 7

Answer:

y = 2/5x - 3

P (0,5)

parallel lines have equal slopes

slope intercept form of an equation

y = mx + b

m = slope, b = y-intercept

parallel to y = 2/5x - 3,

and through P(0, 5)

m = 2/5

y intercept = 5

so, the equation would be

D. y = 2/5x + 5

Answer:

its b

Step-by-step explanation:

i took the test

Answer:

Step-by-step explanation:

x + 12 ≤ 2x − 3 that's the answer

Answer:

4x and 7x; -3 and 1: these are like terms

Step-by-step explanation:

when finding like terms, look for same variables.

Answer:

x < -3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define

4x + 6 < -6

Step 2: Solve for x

Answer:

I literally NEVER got this. it was the most complicated thing to me and still is.

Step-by-step explanation:

Answer:

Red Marbles  = 110

Step-by-step explanation:

Green Marbles =125 × 6 /100 = 7.5

Blue Marbles  = 125 × 6 100 = 7.5

Red Marbles = Total Number of Marbles -[Number of Green Marbles + Number of Blue Marbles]

Red Marbles  = 125 −( 7.5 + 7.5 ) = 125 − 15 = 110

Red Marbles  = 110

Answer:

Population answers:

A. No.  The urban population was growing faster than the world population.  It grew by 31% while the world population grew by 1.8% within the same 10-year period.

B. The growth in 2017 was exponential.

C. The best ways to manage the exponential human population growth are to embark on the re-education of the sexually-active population and to seek ways to expand resources.  This has been done before and it can be done again.  The only way is to seek, because "those who seek, find."

Step-by-step explanation:

a. Constant growth of world population = 1.8%

Global urban population from 1,573 M to 2,057 M

This means that the urban population grew by 484 M

The urban rate of growth =  484/1,573 * 100 = 31%

Answer: 0.4

Step-by-step explanation:

Given: Cumulative exponential distribution:

[tex]P(x<k)=1-e^{\frac{-x}{k}}[/tex]

As per given,

[tex]P(x<2)=1-e^{\frac{-2}{k}}=0.381\\\\\Rightarrow\ e^{\frac{-2}{k}}=1-0.381\\\\\Rightarrow\ e^{\frac{-2}{k}}=0.619\\\\\Rightarrow\ {\frac{-2}{k}}=\ln(0.619) \ \ \ [\text{Taking natural log on both sides }]\\\\\Rightarrow\ {\frac{-2}{k}}=-0.47965\\\\\Rightarrow\ k=\dfrac{2}{0.47965}\\\\\Rightarrow\ k=4.17[/tex]

[tex]P(0.5 < X < 3) \\\\=P(X<3)-P(X<0.5) \\\\=(1-e^{-\frac{3}{4.17}})-(1-e^{-\frac{0.5}{4.17}}) \\\\=e^{-\frac{0.5}{4.17}}-e^{-\frac{3}{4.17}}\\\\= 0.4[/tex]

Hence, the required probability = 0.4

Answer:

30

Step-by-step explanation:

use PEMDAS (parenthesis first)

substitute in a = 7

2 ( 7 + 8 )

2 (15)

30

Answer:

30

Step-by-step explanation:

[tex]2(a+8); a =7\\\\2(7+8)\\\\2(15)\\\\\boxed{30}[/tex]

Hope this helps.

Answer:$26

Step-by-step explanation:

8 x 2 = 16

16+10 = 26

Answer:

3 bags with 6 pencils and 12 stickers.

Step-by-step explanation:

3 goes into both 24 and 36 which makes this possible

3 bags with 8 pencils and 12 stickers ( 3 ⋅ 8 = 24 and 3 ⋅ 12 = 36 )

4 bags with 6 pencils and 9 stickers ( 4 ⋅ 6 = 24  and 4 ⋅ 9 = 36 )

6 bags with 4 pencils and 6 stickers ( 6 ⋅ 4 = 24 and 6 ⋅ 6 = 36 )

12 bags with 2 pencils and 3 stickers( 12 ⋅ 2 = 24 and 12 ⋅ 3 = 36 )

answer: 150 ( 20 / 100 ) = £30

20% can also be written as 20 / 100 as percent means ‘per hundred.’ just multiply that with your number !

alternatively

10% = 150 / 10 = 15

20% = 15 * 2 = £30

Answer:

1. no

2. yes

3. no (t  f)

4.yes

5.no

Triangles ABC and ADC are congruent based on the ASA congruence theorem, and by the transformation called reflection, one triangle can be carried onto the other triangle

What are Congruent Triangles?

Transformations change the size or position of shapes. Congruent shapes are identical, but may be reflected, rotated or translated. Scale factors can increase or decrease the size of a shape. Congruent Triangles simply mean the triangles that possess the same size and shape

•  The three sides are equal (SSS: side, side, side)

•  Two angles are the same and a corresponding side is the same (ASA: angle, side, angle)

•  Two sides are equal and the angle between the two sides is equal (SAS: side, angle, side)

•  A right angle, the hypotenuse and a corresponding side are equal (RHS, right angle, hypotenuse, side)

Given data ,

The figure shows the triangle ABC and ADC are congruent by congruence theorem

Two triangles that are reflection of each other can also be said to be congruent triangles

The two triangles are transformed by reflection and they have two angles that are the same and a corresponding side which is same.

So , the ASA ( angle , side , angle ) theorem can prove both the triangles to be congruent

   Statement 1 is NO

   Statement 2 is YES.

   Statement 3 is NO

Two triangles that are reflection of each other can also be said to be congruent triangles

And, the transformation of reflection can justify that triangles ABC and ADC are congruent and their reflection will carry one triangle onto the other triangle.

So ,

   Statement 4 is YES

   Statement 5 is NO.

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Given:

h is composition of two functions f and g.

[tex]h(x)=(f\circ g)(x)[/tex]

One of the function is 8x-9.

[tex]h(x)=(8x-9)^2[/tex]

To find:

The functions f(x) and g(x).

Solution:

We know that,

[tex]h(x)=(f\circ g)(x)=f[g(x)][/tex]

We have,

[tex]h(x)=(8x-9)^2[/tex]

Here, first function is 8x-9 and the second is square of it.

In [tex](f\circ g)(x)=f[g(x)][/tex], first function which is applied is g(x) and the second function is f(x).

Let [tex]g(x)=8x-9[/tex] and [tex]f(x)=x^2[/tex].

[tex]h(x)=f[8x-9][/tex]

[tex]h(x)=(8x-9)^2[/tex]

So, our assumption is correct.

Therefore, the required functions are [tex]g(x)=8x-9[/tex] and [tex]f(x)=x^2[/tex].