can someone please help me answer question #5


i will mark brainliest

Step-by-step explanation:

Given line is 6x+3y=15

Slope of the given line (m)=-x/y

=-6/3

=-2

let slope of the line perpendicular to the given line be m'.

Condition of perpendicularity,

m×m'=-1

-2×m'=-1

m'=-1/-2

m'=1/2

Answer:

CI 90 %  =  [ 0,05  ;  0,16 ]

Step-by-step explanation:

From sample we got

n  =  110

x  =  21

p =  21/110  =  0.19      then   q  =  1  -  p   q  =  1  -  0.19   q  = 0.81

To create a 90 % confidence Interval, the significance level α  = 10 %

α = 0.1    α/2  =  0.05

t(c) for   α/2  =  0.05    is from z-table    z(c) = 1.64

CI 90 %  =  (  p  ±   z(c) * √(p*q)/n

CI 90 %  =   [  0,11 ±  1.64 * √ (0.19*0.81)/110 ]

CI 90 %  =  [ 0.11  ±  1.64 * 0.037 ]

CI 90 %  =  [ 0.11  ±  0,06 ]

CI 90 %  =  [ 0,05  ;  0,16 ]

Answer: 235.5 feet

Step-by-step explanation:

In this case, we have to calculate the circumference of the track. The circumference will be calculated as:

= 2πr

Diameter = 75 feet.

Radius = 75/2 = 37.5 feet

Circumference = 2πr = 2 × 3.14 × 37.5 = 235.5feet

Answer:

The slope of the side xy is -2

Step-by-step explanation:

To find the slope of the side xy, we use the slope formula

we have the formula as;

m = (y2-y1)/(x2-x1)

(x1,y1) = (-1,3)

(x2,y2) = (0,1)

m = (1-3)/(0 + 1) = -2/1 = -2

Answer:

It started from the Origin(Sine graph). It curved upwards immediately it started... Meaning graph's amplitude is gonna be positive one

The Equation for a sine graph is ASin[B(x-C)] + D

A=Amplitude

B= 2π/period

C= c value at the starting point.

D= y value at starting point

Let your Starting point be at the sinusoidal axis (Max + Min)/2.

Looking at this graph

Let's take 1cm on the y axis to be 1unit(1,2,3,4...)

On the x axis... let's take 1cm to be π units(π,2π,3π....)

To get the sinusoidal axis Max - Min/2

Since 1cm is 1unit

Max =1 (from the graph)

Min= -1

1-1/2 = 0

The axis is at the center of middle

Meaning

D=y=0(Its directly at the x axis)

From this axis at the origin... The graph goes... Intercept Maximum... intercept Minimum... Meaning its a Positive sine graph.

A=amplitude = 1cm

B=Period...(Time to complete one Oscillation)

It doesn't fall directly on an x value... It falls at the 1.9th position. or 19/10

B=2π/Period.

B=2π/19/10

B=2π x 10/19

B=20π/19

C=0

Writing the Equation

Y= 1Sin[20π/19(x-0)] +0

ie

Y = Sin [20πx/19]

My thoughts on it

Correct me if wrong... Thanks

Answer:

39.1

Step-by-step explanation:

31.7 + 42.8 + 26.4 = 100.9

35 times 4 = 140

140 - 100.9 = 39.1

Answer:

[tex]mean = \frac{31.7+42.8+26.4+x}{4} \\\\35 = \frac{31.7+42.8+26.4+x}{4} \\\\\\35*4 = 31.7+42.8+26.4+x \\\\140 = 100.9 + x\\\\x= 39.1[/tex]

option 3

Answer:

32 ft

Step-by-step explanation:

Given data

Length= 8ft

Area= 64 f^2

Let us find the width

Area= Length*Width

64= 8* Width

Width= 64/8

Width= 8ft

Hence the perimeter= 2L+2W

P= 2*8+2*8

P= 16+16

P= 32 ft

we have

using a graphing tool

see the attached figure

This is a quadratic equation (vertical parabola) open up

The vertex is a minimum---------> Vertex

The domain of the function is all real numbers-------> interval (-∞,∞)

The range of the function is the interval----------> [-6.125,∞)

The function has two x-intercepts----->  and

The function is increasing over the interval-----> (0.25,∞)

The function is decreasing over the interval-----> (-∞,0.25)  

Answer:

the range of function is all real numbers,

and the function has 2 x intercepts

Step-by-step explanation:

super easy way to do it, look for an i in your equation, if there is none, and you dont take the square root of a negative number, all answers are real. then you can see that you function crosses the x-axis twice, meaning you have two x-intercepts

Answer:

Probability that one of them is mathematics and other two are either physics or history books = 0.51

Step-by-step explanation:

Given - A student needs to select 3 books from 3 different mathematics, 3 different physics and 1 history books.

To find - What is the probability one of them is mathematics and other two are either physics or history books ?

Solution -

Given that,

A student needs to select 3 books from 3 different mathematics, 3 different physics and 1 history books.

So,

Total number of books = 3 + 3 + 1 = 7

The student has to select 3 books

So, Total number of ways = [tex]^{7} C_{3}[/tex] = 35

So,

Probability that one of them is mathematics and other two are either physics or history books is -

= [tex]\frac{^{3} C_{1}. ^{4} C_{2} }{^{7} C_{3}}[/tex]

= [tex]\frac{(3)(6)}{35}[/tex]

= [tex]\frac{18}{35}[/tex]

= 0.51

⇒Probability that one of them is mathematics and other two are either physics or history books = 0.51

Answer:

[tex] \boxed{-30\:– \: x \:= \: 10 \: \: and \: -30 - x = -10} [/tex]

The equations can be used to find the  minimum and maximum depths are (a) [tex]-30 - x = 10[/tex] and [tex]-30 - x = -10[/tex]

The current diving depth (d) is given as:

[tex]d = -30ft[/tex]

The position (p) she tries to stay is given as:

[tex]p = 10ft[/tex]

Represent the minimum and the maximum distances with x.

So, the distances are calculated using:

[tex]d - x = p[/tex] and [tex]d - x = -p[/tex]

Substitute values for d and p

[tex]-30 - x = 10[/tex] and [tex]-30 - x = -10[/tex]

Hence, the equations can be used to find the  minimum and maximum depths are (a) [tex]-30 - x = 10[/tex] and [tex]-30 - x = -10[/tex]

Read more about absolute equations at:

https://brainly.com/question/5012769

Answer:

[tex]10.9\ \text{m/s}^2[/tex]

Step-by-step explanation:

m = Masa del bloque = 18 kg

F = Fuerza en el bloque = 300 N

[tex]\mu[/tex] = Coeficiente de fricción = 0.6

El equilibrio de fuerzas del sistema viene dado por

[tex]F-f=ma\\\Rightarrow 300-0.6\times 18\times 9.81=18a\\\Rightarrow a=\dfrac{300-0.6\times 18\times 9.81}{18}\\\Rightarrow a=10.9\ \text{m/s}^2[/tex]

La aceleración del bloque es [tex]10.9\ \text{m/s}^2[/tex].

Answer:

b-72

Step-by-step explanation:

an expression does not have an answer. she has b amount of buttons and gives away 72.

Answer:

2.

3p+15−8+11p

=3p+15+−8+11p

Combine Like Terms:

=3p+15+−8+11p

=(3p+11p)+(15+−8)

=14p+7

Answer:

=14p+7

3.

Let's simplify step-by-step.

14p+15−8

=14p+15+−8

Combine Like Terms:

=14p+15+−8

=(14p)+(15+−8)

=14p+7

Answer:

=14p+7

4. Factor 14p+7

14p+7

=7(2p+1)

Answer:

7(2p+1)

Answer:

The expression is [tex]T(n) = 2*(3)^n[/tex]

Step-by-step explanation:

Geometric sequence:

In a geometric sequence, the quotient between consecutive terms is always the same.

The general rule of an geometric sequence is given by:

[tex]T(n) = T(0)(q)^n[/tex]

In which T(0) is the initial amount and q is the quotient.

During the first 4 years after the fire, she records 2, 6, 18, and 54 trees.

First term is 2, so [tex]T(0) = 2[/tex].

Quotient is [tex]q = \frac{54}{18} = \frac{18}{6} = \frac{6}{2} = 3[/tex]

So

[tex]T(n) = T(0)(q)^n[/tex]

[tex]T(n) = 2*(3)^n[/tex]

The expression is [tex]T(n) = 2*(3)^n[/tex]

The number of box tops expired this year is 34.

The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.

Given that, Last year he was able to collect 312 box tops. Out of 312 box tops, 24 were already expired.

So, the ratio is 312:24

39:3

13:1

He collected 441 box tops this year.

Here, the ratio is 441/13 =34

Therefore, the number of box tops expired this year is 34.

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Answer:

A 47 inches

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Answer:

x = 24°, y = 53°

Step-by-step explanation:

An inscribed angle is half the measure of its intercepted arc.

arc EC = 2 × ∠ EDC = 2 × 78° = 156°

x = arc BE = 180° - arc EC = 180° - 156° = 24°

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

arc CD = 2 × CED = 2 × 41° = 82°

arc BD = 180° - arc CD = 180° - 82° = 98° , then

∠ BCD = [tex]\frac{1}{2}[/tex] × 98° = 49°

Then

y + 78° + 49° = 180° (sum of angles in triangle )

y + 127° = 180° ( subtract 127° from both sides )

y = 53°

Answer:

No 1/3 is not greater than 5/9.

Step-by-step explanation:

Answer:

180

Step-by-step explanation:

hehe

2 90

3 60

4 45

5 36

6 30

9 20

90 = 2

<3

Answer:

2, 2/5 + 3, 1/10

2/5 + 3 = 3 2/5

Step-by-step explanation:

Answer:

16.64

Step-by-step explanation:

SA=H*B*0.5*4

SA=3.16*2*0.5*4

SA=12.64

AND THE BASE SURFER IS 2*2=4

SO 12.64+4=16.64

Answer:

a

Step-by-step explanation:

Answer:

After 3 visits both plans will cost the same.

Step-by-step explanation:

Gym A costs $26.76 plus an additional $4 for each visit.

Gym B has no initial fee but costs $12.92 for each visist.

The cost for gym A can be written as

C= $26.76 + 4(x)  where x is the number of visits to the gym A

The cost for gym B can be written as

C= $12.92 (x)  where x is the number of visits to the gym B

Both costs will be equal

12.92x= 26.76 +4x

12.92x-4x= 26.76

8.92x= 26.76

x= 26.76/8.92

x= 3

after 3 visits both plans will cost the same.

Check

12.92x= 26.76 +4x

12.92*3= 26.76 +12

38.76= 38.76

Answer:

20 ft squared

Step-by-step explanation:

The base is the bottom and I multiply 5ft and 4ft and you get 20ft squared

Answer:  ($3.50- 10% = 3.4)

                ( 3.4 + 6.25% = $3.46 or 3.4625 )

Step-by-step explanation:

The final cost of milk is $ 3.36875

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given:

price of galloon of milk = $3.50

Discount  = 10%

tax = 6.25%

Now, price after discount

=3.5 x 0.10

= 0.35

and, after tax

=3.5 x 0. 0625

= 0.21875

Hence, final cost of milk = 3.5 -0.35  + 0.21875= $ 3.36875

Learn more about unitary method here:

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Answer: (x - 2)^2 + (y + 3)^2 = 34

Step-by-step explanation:

The basic equation for a circle is

(x - a)^2 + (y - b)^2 = r^2 where (a, b) is the centre of the circle

Using Pythagoras we can find r^2

r^2 = (2 - -1)^2 + (-3 - -8)^2

= 3^2 + 5^2

= 34

So the circle is (x - 2)^2 + (y - -3)^2 = 34

The Equation of Circle is (x -2)² + ( y + 3)² = 34.

The standard equation of a circle is given by: (x-h)² + (y-k)² = r². Where (h,k) is the coordinates of center of the circle and r is the radius.

We know the standard form of Equation of Circle

(x - a)² + (y - b)² = r²

where (a, b) is the Centre of the circle

Also, we have a  circle with a center at (2,-3) passes through the point (-1,-8).

Using Pythagoras theorem

r² = (2 - -1)² + (-3 - -8)²

= 3² + 5²

= 34

Thus, the Equation of Circle is (x -2)² + ( y + 3)² = 34.

Learn more about Equation of Circle here:

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Step-by-step explanation:

Given :-

And we need to find out how much each receives .Let us take that

According to the Question :-

[tex]\implies \dfrac{9}{7}=\dfrac{x+600}{x}\\\\\implies 9x = 7x + 4200 \\\\\implies 2x = 4200 \\\\\implies x = 2100 [/tex]

Therefore :-

Answer:

ali:mo=937.5 and 262.5

Answer:

3.14 ft

Step-by-step explanation:

45/360 × 3.14 × 8

= 1/8 × 3.14 × 8 = 3.14 ft

Answer: C

Step-by-step explanation: