Find the length of DC
**PLS**

Answer:

-3.4x+8.05

Step-by-step explanation:

Answer:

10 tutors

Step-by-step explanation:

48/6 = 8 student/tutor

78/8 = 9.75 tutors

10 tutors

Answer:

21%

Step-by-step explanation:

To find the decrease subtract 68 from 86

86 - 68 = 18

Divide 18 by the original temperature -

18/86 = 0.209

Multiply 0.209 by 100 to find the percent -

20.9%

Round to the nearest percent -

21%

a=b, b=40

360-a-b=c*2

360-80=c*2

280=c*2

140=c

本题已由中国数学会官方解答（现有会员：3人）  

Answer:

y=6x-4

Step-by-step explanation:

What we know

-9 is x and -58 is y so we have to find the y-intercept y=mx+b is also the formula for this

-58=6(-9)+b

-58=-54+b

-58=54+b        - we changed -54 to a positive 54

54-58=-4

y=6x-4

Using the normal distribution and the central limit theorem, it is found that there is a 0.6328 = 63.28% probability that a random sample of 100 accounting graduates will provide an average that is within $902 of the population mean.

In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

Hence, the probability of sample having mean within M of the population mean is the p-value of [tex]Z = \frac{M}{\frac{\sigma}{\sqrt{n}}}[/tex] subtracted by the p-value of [tex]Z = -\frac{M}{\frac{\sigma}{\sqrt{n}}}[/tex].

In this problem, we suppose [tex]\sigma = 10000[/tex], and thus, with a sample of 100, we have that [tex]s = \frac{10000}{\sqrt{100}} = 1000[/tex].

[tex]Z = \frac{M}{\frac{\sigma}{\sqrt{n}}}[/tex]

[tex]Z = \frac{902}{1000}[/tex]

[tex]Z = 0.902[/tex]

[tex]Z = 0.902[/tex] has a p-value of 0.8164.

[tex]Z = \frac{M}{\frac{\sigma}{\sqrt{n}}}[/tex]

[tex]Z = -\frac{902}{1000}[/tex]

[tex]Z = -0.902[/tex]

[tex]Z = -0.902[/tex] has a p-value of 0.1836.

0.8164 - 0.1836 = 0.6328.

0.6328 = 63.28% probability that a random sample of 100 accounting graduates will provide an average that is within $902 of the population mean.

A similar problem is given at https://brainly.com/question/24663213

Answer:

Angle N, Angle R, Angle Q

Step-by-step explanation:

The 3 angles in a triangle sum up to 180° (Angle sum property of a triangle).

90° + 36° + (7x + 5)° = 180°

126 + 7x + 5 = 180

131 + 7x = 180

7x = 180 - 131

7x = 49

x = 49/7

x = 7

_____

RainbowSalt2222 ☔

Answer:

x=7

Step-by-step explanation:

The sum of the angles of a triangle are 180

90+36+ 7x+5 = 180

131+7x = 180

7x = 180-131

7x =49

Divide by 7

7x/7 = 49/7

x=7

Answer:

me what is there to write about

Step-by-step explanation:

Correlation is the measure of the degree to which any two variables vary together.

If one variable tends to increase as the other variable decreases , the correlation is said to negative or inverse.

From the correlation we assess the strength of the relationship of two variables.

A  numerical measure of strength in the linear relationship between the two variables is called co efficient of simple correlation.

The  co efficient of simple correlation r is a pure number and assumes values from+1 to -1 .

r= -0.837295

The sign of r indicates the direction of the relationship or correlation.

It can be determined by finding the COV (X,Y)/ √Var (X) Var(Y)

In the given question it is calculated by using the excel sheet.

The correlation tab is found in the statistical column of the formula tab.

After entering the data in the excel the correlation tab is clicked and the rows cells are entered and the answer is obtained.

Another way is use the data analysis tab and click the correlation tab.

For both ways the following result is obtained .

r= -0.83729481

rounded to 6 places gives

r= -0.837295

https://brainly.com/question/18054482

https://brainly.com/question/24169114

Answer:

$58.40

Step-by-step explanation:

Really simple stuff here once you know how percentages work.

10% of 73.00 is 7.30, which means that if we do:

7.30 * 2 that means we have 20%

So, 7.30 * 2 = 14.60

73.00 - 14.60 = $58.40

We can check this by doing

7.30 * 8 = $58.40

Answer:

y = 2/3x - 7

Step-by-step explanation:

(3, -5) (-3, -9)

and y = -7 when x = 0  from graph

so c = -7

m = -9 - (-5)  / -3 - 3

= -4 / -6

= 2/3

line equation is y = mx + c

y = 2/3 x + (-7)

y = 2/3x - 7

[tex]\\ \sf\longmapsto m=\dfrac{-9+5}{-3-3}[/tex]

[tex]\\ \sf\longmapsto m=\dfrac{4}{6}[/tex]

[tex]\\ \sf\longmapsto m=2/3[/tex]

Now

Equation of line

[tex]\\ \sf\longmapsto y=mx+b[/tex]

[tex]\\ \sf\longmapsto y=\dfrac{2}{3}x-7[/tex]

Answer:

It's already simplified to its lowest term so....

Answer: It can’t be simplified.

Step-by-step explanation:

You can simplify 4/5 since it already in its simplest form.

Answer:2.11 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

bearing in mind that a function never has X-repeats, or namely the 1st value of each coordinate is never repeated, let's check these ones, who has an X-repeat and doesn't, Check the picture below.

Answer:

gọi x là số cần tìm, y là số sau khi chia. Ta có

y.8+6=x

y.7+5=x          

=>x= -2 , y= -1

Step-by-step explanation:

Check the picture below.

[tex] {x}^{2} + {x}^{2} = {6}^{2} \: \: \: (by \: \: pythagoras \: \: \: theorem) \\ = > {2x}^{2} = 36 \\ = > {x}^{2} = \frac{36}{2} \\ = > {x}^{2} = 18 \\ = > x = \sqrt{18} \\ = > x = \sqrt{2 \times 3 \times 3} \\ = > x = 3 \sqrt{2 } \\ = > x = 4 .2[/tex]

Answer:

Answer:The length of the leg is 4.2 units.

Hope you could get an idea from it.

Doubt clarification - use comment section.

Answer:

6

Step-by-step explanation:

When you multiply two negative numbers, the result becomes posititve

Answer:

123321?

Step-by-step explanation:

Answer:

18.2 kilograms =

18,200 grams

Answer:

Step-by-step explanation:

slope of f(x) is 1/3 as y increases one unit for every three units increase in x.

Perpendicular lines have negative reciprocal slopes, so g(x) has a slope of -3

-5 = -3(1) + b

b = -2

g(x) = -3x - 2

g(-2) = -3(-2) - 2 = 4

For all real numbers x, the equation sin(2x) = 2sin(x)cos(x)

The trigonometric function sin(2x) represents the sine of twice the angle x.

Using a trigonometric identity, we can express sin(2x) in terms of sine and cosine of x:

sin(2x) = 2sin(x)cos(x)

This identity states that the sine of twice an angle is equal to twice the product of the sine of the angle and the cosine of the angle.

So, for any real number x, sin(2x) can be calculated by evaluating 2sin(x)cos(x).

To know more about equation, refer here:

https://brainly.com/question/32556925

#SPJ2

Answer:

  13 inches

Step-by-step explanation:

The volume (V) of cube is related to the edge length (s) by ...

  V = s³

Then the edge length is ...

  s = ∛V

For a cube with a volume of 2300 cubic inches, the edge length is ...

  s = ∛(2300 in³) ≈ 13.2 in

To the nearest integer, the length of the side of the shipping box is 13 inches.

Answer:

corresponding angles

Step-by-step explanation:

Answer:

x = 5

Step-by-step explanation:

RS  +ST =  RT

2x + 10 + x - 4 = 21

2x + x + 10 - 4 = 21   {Combine like terms}

3x + 6 = 21

Subtract 6 from both sides

3x = 21 - 6

3x = 15

Divide both sides by 3

x = 15/3

x = 5

Answer:

Because 6th grade math is the abosulute worst. other than every other math above 6th grade

Step-by-step explanation:

Answer:

3 1/5

Step-by-step explanation:

8/1 = 8

8/1 * 2/5 = 16/5

16/5 = 3 1/5

Answer:

32/10, or 3 1/5

Step-by-step explanation:

One way of doing this problem is to multiply the numerators 8 and 2 together and then divide the result by 5:

 8*2

-------- = 16/5

   5

In turn, 16/5 can be rewritten as 32/10, or 3 1/5

Answer:

  B. y = 2x^2 - 4x

Step-by-step explanation:

The point (0, 0) lies on the graph, so the equation has no constant term (the constant is zero). Only one answer choice has this characteristic:

  y = 2x^2 -4x

Answer:

option 1 is correct .. triangle ABC is congruent to DEF..