If possible please help! With 12

Answer:

x = 36

Step-by-step explanation:

the supplementary angle in the lower right corner is 180 - 150 = 30°.

sin 30 = 18/x

0.5 = 18/x

x = 36

Answer: its b

Step-by-step explanation:

Answer:

dy/dx= 7- 3x^-1/2

when X=1

dy/dx = 4

as it is a tangent M1=M2=4

now,

at gradient 4 and point (1,1)

equation of curve is ,

y-y1= m(x-x1)

or, y-1=4(x-1)

or, y-1=4x-4

or, y-4x= -3

or, 4x-y=3

Answer:

BRAINLEST ANSWER

Step-by-step explanation:

dy/dx=7-3x^-1/2

when x=1

Dy/dx=4

as it is a tangent M1=M2=4 now

at gradient 4 and point(1,1) equation of a curve is y-y1=m(x-x1)

or y-1=4(x-1)

or y-1=4x-4

or y-4x=-3

or 4x-y=3

Answer:

x = 20

Step-by-step explanation:

just or the record, it only 5 points, not 50

180 - 80 = 100

3x + 2x = 5x

5x = 100

divide by 5

x = 20

Plz mark as brainliest if correct! Have a nice day!!!

-Lil G

Answer:

x=25

Step-by-step explanation:

Hey There!

Those angles are supplements meaning all of them added together will equal 180

so we set up an equation

180 = 3x+2x+80 and solve for x

step 1 combine like terms

3x+2x=5x

now we have

180=5x+80

step 2 subtract 80 from each side

180-80=100

80-80 cancels out

now we have

5x=100

step 3

divide each side by 5

5/5 cancels out

100/5=25

x=25

Therefore the value of x is 25

Hope this helps :)

Answer:

After 2 minutes the temperature of the hot chocolate will be 149.46 degrees Fahrenheit.

Step-by-step explanation:

We are going to use the Newton's law of cooling to solve this exercise. The Newton's law of cooling states that the amount of heat lost by a body is proportional to the difference of temperature between the body and the enviroment. We are going to use the following function :

T(t)=T_{0}+(T_{i}-T_{0}).e^{-kt}T(t)=T

0

+(T

i

−T

0

).e

−kt

Where ''T(t)'' is the temperature of the body that depends of the variable ''t'' which is time.

Where T_{0}T

0

is the temperature of the surroundings

In this case T_{0}T

0

is the temperature of the freezer

Where T_{i}T

i

is the initial temperature of the body which is cooling. In this case, T_{i}T

i

is the temperature of the hot chocolate

And where ''k'' is a constant. In this case, k=0.12k=0.12 is a data of the exercise

If we replace all the values in the equation and replacing t=2minutest=2minutes

⇒

T(2minutes)=0+(190-0).e^{-(0.12).(2)}T(2minutes)=0+(190−0).e

−(0.12).(2)

T(2minutes)=(190).(e^{-0.24})=149.46T(2minutes)=(190).(e

−0.24

)=149.46

We find that the temperature of the hot chocolate after 2 minutes is 149.46 degrees Fahrenheit

Answer:

5305.1647 times

Step-by-step explanation:

The Circumference of a circle : πd

d = diameter of circle = 30 cm

Circumference of wheel = π * 30cm = 94.247779 cm

1km to cm

1km = 100000cm

5 km = 500000 cm

Hence, number of times wheel rotate on a 5km journey :

500000 cm / 94.247779 cm

= 5305.1647 times

9514 1404 393

Answer:

  axis of symmetry: x = 2

  see below for a graph

Step-by-step explanation:

You can complete the square to put the equation in vertex form.

  y = (x^2 -4x +4) -1 -4

  y = (x -2)^2 -5 . . . . . . vertex is (2, -5)

The equation of the axis of symmetry is the equation of the vertical line through the vertex:

  x = 2 . . . . . axis of symmetry

__

Points on the graph are easily found by using integer values on either side of x=2. Points on one side of the axis of symmetry are mirrored on the other side of it.

Answer:

tell martha to buy huwei matebook x 2020 , its a good one

Step-by-step explanation:

Answer:

x = - 5

Step-by-step explanation:

Given

[tex]\frac{10}{x}[/tex] = - 2 ( multiply both sides by x )

10 = - 2x ( divide both sides by - 2 )

- 5 = x

Answer:

-5

Step-by-step explanation:

[tex] \frac{10}{x} = - 2[/tex]

[tex] = >10 = - 2 x [/tex]

[tex] = > \frac{ - 10}{2} = x[/tex]

[tex] = > x = \frac{ - 10}{2} [/tex]

=> x = -5 (Ans)

Answer:

Margret is correct, Kevin is wrong.

Step-by-step explanation:

6^-4 can be written as (1/6)^4

By taking (1/6)^5 times you have (1/6)(1/6)(1/6)(1/6)(1/6), multiplying by 6 would cancel one of those (1/6ths) out. Meaning you would be left with (1/6)^4 or 6^-4

Kevin is wrong because taking 6^4 would not be the same as 6^-4, 6^4= 1296, multiplying that by 1/6 would not give you the same value as 6^-4. His mistake was that he did not take the reciprocal of 6^-4 and incorrectly removed a negative.

Hope this helps, for more assistance please check out: http://linktr.ee/x.squared/

Answer: C

Step-by-step explanation:

Answer:

x = 1

Step-by-step explanation:

Were trying to solve for x so we would say 3 1/2 - 2 1/2 and we would be left with 1. So x=1, which you then substitute into the problem to make sure it's correct so 2 1/2 + 1 = 3 1/2.

Hope this helped

Answer:

3b - 2

Step-by-step explanation:

b = breadth

Length = 3b - 2

Answer:

4) -3

Step-by-step explanation:

Answer:

$4

Step-by-step explanation:

If she have $6 so 6-2=4

If buying 3 beanies babies of same cost costs $d (all money that Jane had), then buying only one such beany baby would save Jane $2d/3

When 'a' is divided by 'b', then the result we get from the division is the part of 'a' that each one of 'b' items will get.

Thus, if 10 mangoes are there, and 2 people, then 10 ÷ 2 is the number of mangoes each person would get, which is 5.

Division, thus, can be interpreted as equally dividing the number that is being divided in total x parts, where x is the number of parts the given number is divided.

Thus,  [tex]a \div b[/tex]= a divided in b equal parts.

Also, we can write: [tex]a \div b = a \times \dfrac{1}{b}[/tex]

(it is since a = a times 1 so [tex]a/b = 1 \times (a/b) = (1/b) \times a[/tex] )

Given that:

To find:

The amount she'd save if she buy only one such beanie baby.

Amount that she'd save = Total amount she could've spent - Total price of one beanie baby

As we know, total amount she could've spent  = $d

Also, because of 3 beanie babies cosing equal, and total cost being $d,

the cost of each beanie baby is:

$d divided in 3 equal parts =  d/3 dollars

Thus, we get:

Amount that she'd save = Total amount she could've spent - Total price of one beanie baby

Amount that she'd save = [tex]d - \dfrac{d}{3} \: \rm dollars[/tex]

We can write d = 3d/3 since dividing and multiplying a number by same non-zero number doesn't affect that number.

We do so, so that that both terms could get in fraction form with same denominator so that numerators could work directly.

[tex]d - \dfrac{d}{3} = \dfrac{3d}{3} - \dfrac{d}{3} = \dfrac{3d - d}{3} = \dfrac{2d}{3}[/tex]

Thus, if buying 3 beanies babies of same cost costs $d (all money that Jane had), then buying only one such beany baby would save Jane $2d/3

Learn more about division here:

https://brainly.com/question/26411682

#SPJ2

Answer:

Step-by-step explanation:

radius r = 4 in

slant height L = 15 in

base area = πr² = 16π in²

lateral area = πrL = 60π  in²

surface area = 76π in²

r = 4×6, L = 15×6

base area = (4×6)²π = 16π×36

lateral area = 60π×36

surface area is multiplied by 36

Answer:

v = − 1 or v = 3

Step-by-step explanation:

Let's solve your equation step-by-step.

[tex]v^{2}[/tex] − 2v = 3

Step 1: Subtract 3 from both sides.

[tex]v^{2}[/tex]  − 2v − 3 = 3 − 3

[tex]v^{2}[/tex]  − 2v − 3 = 0

Step 2: Factor left side of equation.

( v + 1 ) ( v − 3 ) = 0

Step 3: Set factors equal to 0.

v + 1 = 0 or v − 3 = 0

v = −1 or v = 3

Hope it helps

Please mark me as the brainliest

Thank you

Answer:

y2-y1         5--6            11

--------   =.  --------   =     ----

x2-x1         -4 --9           5

Step-by-step explanation:

Answer:

lol cut3-dog how-is-your-d4y

Step-by-step explanation:

Answer:

Yes  5g - 2g and 18g/6 is equal

Step-by-step explanation:

If this does not help you im sorry! :(

Hope this helps

5-2=3, 18/6=3 and 3=3

Answer:

Yes  5g - 2g and 18g/6 is equal

Step-by-step explanation:

5-2=3, 18/6=3 and 3=3

Answer:

the first box is 31, the second is 34, and the fourth is 40

Step-by-step explanation:

that's just the answer

Answer:

what do you need help with?

Step-by-step explanation:

please tell me what do you need helpwith

Answer:

perimeter of triangle=sum of all sides

perimeter of triangle = 3/10ft + 3/10ft + 1/10ft

perimeter of triangle =7/10ft

2.25

per hot dog

1.19

per bag o' chips

Explanation:

5x +3y = 14.82

7 x+6y = 22.89

− 10x−6y = −29.64

7 x+6y = 22.89

−3x  = −6.75

x=2.25

5⋅2.25+3y = 14.82

3y = 14.82  − 11.25

y = 3.57 /3  = 1.19

The cost of each hot dog and bag of chips is $2.22 and $1.24

A set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought.

Given that, At a baseball game Henry bought 5 hot dogs and three bags of chips for $14.82. Scoot bought 7 hot dogs and 6 nags of chip for $22.98.

Let the unit prices of hot dogs and chips be h and c respectively,

Therefore, establishing the equations,

5h + 3c = 14.82...(i)

7h + 6c = 22.98....(ii)

Multiply eq(i) by 2 and subtract eq(ii) by eq(i)

(10h + 6c = 29.64) - (7h + 6c = 22.98)

3h = 6.66

h =2.22

Put h = 2.22 in eq (i)

5(2.22) + 3c = 14.82

11.1 + 3c = 14.82

3c = 3.72

c = 1.24

Hence, the cost of each hot dog and bag of chips is $2.22 and $1.24

Learn more about system of equations, click;

https://brainly.com/question/12895249

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Answer:

27

Step-by-step explanation:

15: 100 = x : 180

x = (180 x 15) / 100 = 27

Answer:

27

Step-by-step explanation:

Seems like your question(shown/written) is incomplete. Based on the given data.

15% of the total students participated in soccer

15% of 180 students participated in soccer

=> 15/100 x 180

=> 2700/100

=> 27

27 students participated in soccer

Answer:

a is the answer to this question but sorry if I am wrong

Answer:B

Step-by-step explanation:

Because I got the question wrong and that was the correct answer