Simplify the expression:
2a+4b=9c

Answer:

18%

Step-by-step explanation:

hope it helps in ur test

The break even point is the point where the cost and the revenue are equal

The break even point is at x = 50

The functions are given as:

C(x) = 30x + 500 --- cost function

R(x) = 40x ---- revenue function

At the break even, we have:

R(x) = C(x)

So, the equation becomes

40x = 30x + 500

Subtract 30x from both sides

10x = 500

Divide both sides by 10

x = 50

Hence, the break even point is at x = 50

Read more about break even at:

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Answer:

4

Step-by-step explanation:

Answer:

All you need to do is subtract the coefficient.

Step-by-step explanation:

For example a minus b is c. So this is simply going to be c times d to the e you can do that if these two are the same.

Answer:

All except the 3rd

Step-by-step explanation:

Answer:

it's 11 and x is 12

Answer:

y = 15

Step-by-step explanation:

since the triangles are similar then the ratios of corresponding sides are in proportion, that is

[tex]\frac{y}{33}[/tex] = [tex]\frac{10}{22}[/tex] ( cross- multiply )

22y = 330 ( divide both sides by 22 )

y = 15

Answer:

80n

Step-by-step explanation:

32n=4m/s

?=10m/2

10/4=2.5

32*2.5+80

80n

Answer:

4x5+2x5= 30

Step-by-step explanation:

Answer:

i believe the answer is 2.5

Step-by-step explanation:

The value of x in the given right cone is 10 units.

A cone is a geometrical shape in three dimension formed by a set of lines joined from a point to every points on the base surface which is a  circle.

The common point where the lines join is called apex.

The distance from apex to the circular base is called the height of the cone.

The radius of the circular base is also the radius of the cone.

Volume of a Cone is calculated as V = [tex]\frac{1}{3}[/tex] πr²h, where h is the height of the cone and r is the radius of the cone.

We have, Volume of the cone = 30π units³.

From the figure given, diameter of the circular base = 6 units

So, the radius of the cone = 6/2 = 3 units

We have to find the height of the cone.

Substituting these values in the equation for the volume,

30π = [tex]\frac{1}{3}[/tex] π × 3² × h

30 = = [tex]\frac{1}{3}[/tex] × 3² × h

30 = 3h

h = 10

Hence, the height of the cone with radius 3 units and volume 30π units is 10 units.

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Answer:

if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.

Step-by-step explanation:

Answer:

  upper left (see attached)

Step-by-step explanation:

If any input results in more than one output, the relation is not a function. The attachment shows a relation that is not a function.

Answer:

15%

Step-by-step explanation:

Total families:

[tex]45 + 38 + 27 + 10 = 120[/tex]

Difference between the families:

[tex]45 - 27 = 18[/tex]

Percentage calculation:

[tex]\% = \frac{18 \times 100}{120} = 15\%[/tex]

Answer:

3900

Step-by-step explanation:

first, you tell your mom to help you after you scream and go to the hospital and pretend you crazy after magic bye I hope that hell

So let's set our mystery number to 10

We want to find the quotient of 10 and the sum of 3 and 2.

    quotient = [tex]\frac{10}{3+2} =\frac{10}{5} =2[/tex]

So the quotient, in this case, is 2.

Hope that helps!

Answer:

2

Step-by-step explanation:

Step-by-step explanation:

look at the picture I have sent

Answer:

  (a)  5 : 8 < 7 : 10

  (b) 9/6 = 36/24

Step-by-step explanation:

Perhaps simplest to explain is the use of a common denominator: 40.

  [tex]5 : 8 = (5\cdot5):(8\cdot5)=25:40\\\\7:10=(7\cdot4):(10\codt4)=28:40\\\\25:40 < 28:40\quad\leftrightarrow\quad\boxed{5:8 < 7:10}[/tex]

__

Other ways you can do this comparison are ...

  Multiply by 8·10 = 80, the product of the denominators:

     5·10 = 50 < 7·8 = 56

  Convert the fractions to decimal:

     5/8 = 0.625 < 7/10 = 0.700

__

Remove a factor of 4 from the second fraction:

  [tex]\dfrac{9}{6}\text{ and }\dfrac{36}{24}\quad\leftrightarrow\quad\boxed{\dfrac{9}{6}=\dfrac{9\cdot4}{6\cdot4}}[/tex]

Step-by-step explanation:

find the x-intercept, substitute in

0

for

y

and solve for

x

To find the y-intercept, substitute in

0

for

x

and solve for

y

.

x-intercept(s):

(

−

1

53

,

0

)

y-intercept(s):

(

0

,

2

)

Answer:

1 line of symmetry so answer should be C

Answer:

x = 9

Step-by-step explanation:

2x + 15 = 5x - 12 (since it is parallel)

15 + 12 = 5x - 2x

27 = 3x

x = 9

Answer:

61 beats = 4.88

72 beats = 5.76

Step-by-step explanation:

Firstly,you have to divide 61 to 12.5 then you can get 4.88. After that, you must divide 72 to 12.5 then you can get 5.76. Hope this will help you!

Answer:

a. 2/3

b. [tex]\sqrt{2}[/tex]

c. 3

d. 5

e. 2

f. Undefined

Step-by-step explanation:

a. [tex]f(x)=\frac{|x-3|}{x+2}[/tex]

To find f(1), plug in 1 where every x is in the equation

[tex]f(1)=\frac{|1-3|}{1+2}=\frac{|-2|}{3}=\frac{2}{3}[/tex]

b. [tex]f(x) = \sqrt{x+1}[/tex]

[tex]f(1) = \sqrt{1+1}=\sqrt{2}[/tex]

c. [tex]f(x) = x^2+5x-3[/tex]

[tex]f(1) = (1)^2+5(1)-3=1+5-3=6-3=3[/tex]

d. [tex]f(x)=\frac{2x+3}{x}[/tex]

[tex]f(1)=\frac{2(1)+3}{1}=\frac{5}{1}=5[/tex]

e. [tex]f(x) = |2x-4|[/tex]

[tex]f(1) = |2(1)-4|=|2-4|=|-2|=2[/tex]

f. [tex]f(x)=\frac{7-2x}{x-1}[/tex]

[tex]f(1)=\frac{7-2(1)}{1-1}=\frac{5}{0}[/tex]

This equation is undefined when x=1 because 0 is the denominator of the fraction.

Answer:

Approximately Normal

Step-by-step explanation:

Since we're given a normally distributed population, the sampling distribution of the sample means will also be normally distributed, even when the sample size is small.

Step-by-step explanation:

3x + 6y - 5z

=3×3+-5×6-2×5

=9+-30-10

=9-40

=-31

Answer:

- 31

Step-by-step explanation:

x = 3

y = -5

z = 2

3x + 6y - 5z

3(3) + 6(-5) - 5(2)

9 - 30 - 10

9 - 40

- 31

Hope this helps!

Answer:

69 degrees

Step-by-step explanation:

Angles in a circle add up to 360 degrees

360 - (44+90+157) = 69

use a calculator it's way easier but here is the answer