Make b the subject of the formula [tex]a=\sqrt{b + 6[/tex]

Answers

Answer 1

Hi!

We want to solve for [tex]b[/tex]

Given:

[tex]a=\sqrt{b+6}[/tex]

Square both sides:

[tex]a^2=\sqrt{b+6} ^2[/tex]

Simplify:

[tex]a^2=b+6[/tex]

Subtract [tex]6[/tex] from both sides:

[tex]a^2-6=b+6-6[/tex]

Simplify:

[tex]a^2-6=b[/tex]

Flip:

[tex]b=a^2-6[/tex]

Hence, [tex]b[/tex] is the subject of the formula.


Related Questions

Korey is planning to open a comic book store. he has developed the following expense breakdown for set-up and operation for the first year. korey has $8,500 in savings and $25,000 in inheritance money to use to open his store. will korey have enough to run his business for a full year? expense amount rent $10,800 insurance $3,000 store fixtures $2,700 computer and cash register $1,200 inventory $17,400 a. yes, korey will have $1,600 to spare. b. no, korey will be short $1,600. c. yes, korey will have $15,800 to spare. d. no, korey will be short $15,800.

Answers

Answer:

C. 15800 to spare

Step-by-step explanation:

All you have to do is add up the total money he has to spend  money, then you add up the total cost, and subtract the total money he has to spend by the total cost, and you're left with he has 15,800 left to spare. ;)

He should make a loan from the investors about 4.6%..

What is Percentage?

To determine the volume or chance of commodity in terms of 100, use the chance formula. Per cent simply means one in a hundred. With the chance formula, a number between 0 and 1 can be expressed. A number that's expressed as a bit of 100 is what it is. It's substantially used to compare and determine rates and is represented by the symbol.

Total quantum plutocrat Korey have

= Saving plutocrat heritage plutocrat

= $,500$,000

= $,500

Total quantum of charges

= Store Fixtures amount + Computer and Cash Register amount + Inventory  amount +Rent amount + Insurance amount

=  $2700 + $1200 + $17400 +$10800 + $3000

= $35100

So, Fund taken through loans and investor

= Total quantum of charges -Total quantum plutocrat Korey have

= $ 35100-$ 33500

= $ 1600

and, the percentage is

= 1600 x 100 / 35100

= 4.6%

He should make a loan from the investors about 4.6%.

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What is the equation of a line in general form that does not have a y-intercept and goes through the point (3,6) ?

(** I know the answer is x-3 = 0, please EXPLAIN)

Answers

Answer:

[tex]x = 3[/tex]

Step-by-step explanation:

Step 1:  Determine the equation

So we know that our equation does not have a y-intercept which means that it doesn't intersect ANYWHERE on the y-axis.  Therefore, this means that our equation will be a straight vertical line that doesn't move side to side and just goes straight up and down.  We also know that our point is (3, 6) which means that our x-value will be 3 and this is where the equation will be located.  

There are several ways to display our answer where x = 3 is the most common way which basically means give me all of the y-values for the same x value of 3.  Another way of saying it is x - 3 = 0 which either way when adding 3 to both sides gives you x = 3 which is what I usually go with.

Answer: [tex]x = 3[/tex]

Answer:

x = 3 or x - 3 = 0

Step-by-step explanation:

Given

It does not have a y-interceptPasses through the point (3, 6)

Solving

If the line cannot touch the y-axis, it has to be parallel to it (in other words, the line must be vertical)Since the x-value is constant for a vertical line and it passes through the point (3, 6), the equation of the line will be :x = 3 or x - 3 = 0

20) What fraction of the square is shaded if the line inside divides the square into two equal parts?

please help me fast please​

Answers

Answer:

3/8 of the area is shaded

Step-by-step explanation:

this can be determined by deviding the total shape into parts and determining those parts

so we see the top right 1/4 of the shape has a square that is shaded, with the triangle only covering 1/2 of this shape becuase the hypotenuse ((diagnal edge of a right triangle)) devides the square in half

beings that 1/2 of the 1/4 square is shaded, we know that in reation to the whole shape that the small shaded area is equal to 1/8 ((1/2 ÷ 1/4 = 1/8))

same can be said for the bottum shape, with the bottum half of the whole shape half covered we can determine its total shaded area in relation to the shape ((1/2 ÷ 1/2 = 1/4))

the left top shape is completely unshaded so we wont need to calculate any shadded area into the equation

with the total shape covered by 1/4 + 1/8 we can find the least common denominator between the two fractions to get a simplifide answer for the total shaded area

1/4 = 2/8
2/8 + 1/8 = 3/8

this leaves 5/8 of the shape unshaded

3/8 fraction of the square is to be shaded.

What is Triangle?

A triangle is a three-sided polygon that consists of three edges and three vertices.

In the top right 1/4 of the shape has a square that is shaded, with the triangle only covering 1/2 of this shape because the hypotenuse divides the square in half.

1/2 of the 1/4 square is shaded, we know that in relation to the whole shape that the small shaded area is equal to 1/8.

same can be said for the bottom shape, with the bottom half of the whole shape half covered we can determine its total shaded area in relation to the shape.

1/4 = 2/8

2/8 + 1/8 = 3/8

Hence, 3/8 fraction of the square is to be shaded.

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find the measure of the missing angle?

Answers

56+72+x =180 ( therefore sum of angle in a triangle)

128+x=180

x=180-128

x=52

Answer:

THE MISSING ANGLE = 52°

Step-by-step explanation:

Sum of all angles = 18°0

Let the missing angle be x°

56° + 72° + x° = 180°

x° = 180° - 72° - 56°

x° = 52°

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A bag contains 3red, 4white, 5green balls. Three balls are selected without replacement. Find the probability that the three balls chosen are:
A) all red
B) all green
C)one of each color

Answers

Answer:

A. 1/220   B. 1/22   C. 3/11

Step-by-step explanation:

This question uses combinations -- counting the number of ways a selection can be made from a set of objects (without arranging them after the selection is done).

Notations for combinations:

The number of ways to select  r  things from a set of  n  things is

[tex]C(n,r)=\frac{n!}{r!(n-r)!}[/tex]  where the exclamation points mean factorial.

[tex]n!=1\cdot2\cdot3\ldots\cdot n[/tex]  and 0! is defined to be 1.

There are two other commonly used symbols for this:

[tex]_nC_r[/tex]  and  [tex]n \choose x[/tex].

In all three parts, the number of ways to choose 3 balls from a set of 12 is

[tex]C(12,3) = \frac{12!}{3!(12-3)!}=\frac{12\cdot 11 \cdot 10 \cdot 9\cdot 8\cdot 7\cdot 6\cdot 5\cdot4\cdot3\cdot2\cdot1}{(3\cdot2\cdot1)(9\cdot8\cdot7\cdot6\cdot5\cdot4\cdot3\cdot2\cdot1)}[/tex]

Notice that 9 factors in the denominator cancel 9 factors in the numerator, leaving

[tex]C(12,3) = \frac{12!}{3!(12-3)!}=\frac{12\cdot 11 \cdot 10}{3\cdot2\cdot1}=220[/tex]

A. The number of ways to choose 3 red balls from the 3 red balls is C(3, 3) = 1, so the probability is 1 / 220.

B)  The number of ways to choose 3 green balls from the set of 5 green balls is [tex]C(5,3)=\frac{5!}{3!(5-3)!}=\frac{5!}{3!2!}=\frac{5\cdot 4}{2}=10[/tex]  out of 220, so the probability is 10/220 = 1/22.

C)  The number of ways to choose 1 red is C(3, 1) = 3.  Choose 1 green in C(5, 1) = 5 ways.  Choose 1 white in C(4, 1) = 4 ways.

The probability is  [tex]\frac{3\cdot 5 \cdot 4}{220}=\frac{60}{220}=\frac{3}{11}[/tex]

Answer:

a) 1/220

b) 1/22

c) 3/11

Step-by-step explanation:

Check the attachment.

A door's shape is made by combining a rectangle and a semicircle. What is the area of the door?

Answers

Answer:

34.28 ft²

Step-by-step explanation:

Area of the door = area of the rectangle + area of the semicircle

                            = 7 × 4                            +  (3.14 × 2²)/2

                            = 28                                + (3.14 × 4)/2

                            = 28                                + 3.14 × 2

                           = 28                                 + 6.28

                           = 34.28

Need now pleasee! :(

Find the units digit for the sum
13^35 + 57^30 + 34^33

Give explanation/steps.​

Answers

Answer:

The answer is 47796816366096114154433241462805777065938231744772710

Step-by-step explanation:

hope this helps you

Bob sells part of a 50-acre rectangular plot of land he owns so that he can still own a smaller rectangular plot within the original. After he makes the sale, Bob's remaining plot of land is half as long and half as wide as his original plot. What is the area of Bob's remaining plot of land?

Answers

Considering the area of a rectangle, it is found that the area of Bob's remaining plot of land is of 12.5 acres.

What is the area of a rectangle?

The area of a rectangle of length l and width w is given by the multiplication of these dimensions, that is:
A = lw.

In this problem, both the length and the width are divided in half, hence the proportion remaining is given by:

A = 0.5l x 0.5w = 0.25lw = 25% of the initial area.

Hence:

0.25 x 50 = 12.5.

The area of Bob's remaining plot of land is of 12.5 acres.

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The graph of r = -10 cos θ has which of the following characteristics?

Answer choices are listed below.

Answers

Step-by-step explanation:

If we convert

[tex]r = - 10 \cos(x) [/tex]

to a Cartesian equation,

[tex] {r}^{2} = - 10 r \: \cos(x) [/tex]

[tex] {x}^{2} + {y}^{2} = - 10x[/tex]

[tex] {x}^{2} + 10x + {y}^{2} = 0[/tex]

[tex] {x}^{2} + 10x + 25 + {y}^{2} = 25[/tex]

[tex](x + 5) {}^{2} + {y}^{2} = 25[/tex]

So we have a circle with center (-5,0), with a diameter of 10.

A store buys a remote control robot for $60. They mark it up by 30%. What will be the selling price

Answers

the answer would be 78 because 10% of 60 is 6. 6 x 3 = 18 60+18=78
Answer: $78 selling price

Step-by-step explanation:

The store buys a remote control robot for $60 plus it marks up by 30%.

First, we need to convert 30% to a decimal of 0.30.

Then we multiply 60 by 0.30.

60*0.30=18

We know we have to add the original price of $60 with an $18 markup.

60+18=78

We now get $78 as the selling price.

PLEASE HELP

i have no clue what im doing wrong but i cannot find the answer

Answers

2pi/b but there isn’t any b it would just be 2pi/1 making it only 2pi

What is the first quartile in this box plot? Enter your answer in the box.

Answers

Answer:

30

Step-by-step explanation:

the beginning of the box is the first quartile the middle is the median the end it the third quartile

A square pyramid is made up of a base with a side length of 10 inches and faces that are triangles with a height of 12 inches. What is the surface area of the square pyramid?

The answer is: 340 square inches in other words: C

Answers

Answer:

3

340?Step-by-step explanation:

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Tran has a credit card with a spending limit of $2000 and an apr (annual percentage rate) of 12%. during the first month, tran charged $450 and paid $150 of that in his billing cycle. which expression will find the amount of interest tran will be charged after the first month? (0.01) (300 dollars) (0.01) (450 dollars) (0.12) (300 dollars) (0.12) (450 dollars)

Answers

The expression  that will find the amount of interest tran will be charged after the first month is: (0.01) (300 dollars).

Expression

First step

Monthly interest rate = (Annual percentage rate ÷ Number of months in a year)

Monthly interest rate= 0.12 ÷ 12

Monthly interest rate= 0.01

Second step

Amount left = Amount charged - Amount paid

Amount left = $450 - $150

Amount left = $300

Third step

Amount of interest=Monthly rate ×Amount left

Amount of interest=(0.01) (300 dollars)

Amount of interest=$3

Therefore the expression  that will find the amount of interest tran will be charged after the first month is: (0.01) (300 dollars).

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10. The sum of three numbers is 98. The ratio of the first to the second is 2/3, and the ratio of the second to the third is 5/8. The second number is: (a) 15, (b) 20, (c) 30, (d) 32, (e) 33​

Answers

given:

sum of three number= 98

to find:

the second number.

solution:

Let the three numbers be x, y and z

Sum of the numbers is 98.

x + y + z = 98………………(i)

The ratio of the first to the second is 2/3.

x/y = 2/3

x= 2/3 × y

x= 2y/3

The ratio of the second to the third is 5/8.

y/z= 5/8

z/y= 8/5

z= 8/5 × y

z= 8y/5

Put the value of x = 2y/3 and z = 8y/5 in (i).

2y/3 + y + 8y/5= 98

49y/15= 98

49y= 98 × 15

49y= 1470

y= 1470/49

y= 30

Therefore, the second number is 30.

answer= option c.

Answer number 14 please. Thank you.

Answers

Answer:

i already did i the previous one

btw can you send this full page of work in pdf if you could

15.

[tex] \frac{89.32}{48.50} \times 100[/tex]

help me due today it is math

Answers

Answer:

Exact form = 1/49

Step-by-step explanation:

Decimal form = 0.02

Hope this helps! :)

Answer:

[tex]\frac{1}{7}^{2} = \frac{1}{49}[/tex]

Step-by-step explanation:

The power of the 2 means to multiply it two times itself.

Example: 7^2 = 7 * 7 = 49

Apply that to a faction.

[tex]\frac{1}{7}^{2} =\frac{1}{7} *\frac{1}{7} = \frac{1}{49}[/tex]

solve for x 1 + 2r = 35

Answers

Answer:

r = 17

Step-by-step explanation:

calculate: 2r=35-1

divide both sides: 2r=34

Hey I kinda need some help with this could u help?

Answers

Answer:

[tex]x = 13 ~~ \text{and}~~ y= 10[/tex]

Step-by-step explanation:

[tex]~~~~~~2.31 \times 10^x = 2200 \times 1.05 \times 10^y\\\\\implies 2.31 \times 10^x = 2310 \times 10^y\\\\\implies \dfrac{10^x}{10^y} = \dfrac{2310}{2.31}\\\\\implies 10^{x-y}=1000\\\\\implies 10^{x-y} = 10^3\\\\\implies x - y = 3[/tex]

[tex]\text{If x = 13 and y = 10 then the difference will be 3.}[/tex]

what is the solution for the equation -15=5(3y-10)-5y

Answers

Answer:

[tex]\Large\boxed{\sf{y=\dfrac{7}{2} }}[/tex]

Step-by-step explanation:

Isolate the variable of y from one side of the equation.

-14=5(3y-10)-5y

First, switch sides.

[tex]\sf{5\left(3y-10\right)-5y=-15}[/tex]

Use the distributive property.

DISTRIBUTIVE PROPERTY:

A(B-C)=AB-AC

5(3y-10)

Multiply by expand.

5*3y=15y

5*10=50

15y-50-5y

15y-5=10y

= 10y-50

10y-50=-15

Add by 50 from both sides.

10y-50+50=-15+50

Solve.

10y=35

Then, you divide by 10 from both sides.

10y/10=35/10

Solve.

Divide the numbers from left to right.

35/10=7/2

y=7/2

Divide is another option.

7/2=3.5

[tex]\Longrightarrow: \boxed{\sf{y=\dfrac{7}{2}}}[/tex]

Therefore, the correct answer is y=7/2.

I hope this helps. Let me know if you have any questions.

Hayden has $20 to spend at the county fair. Admission to the fair is $5.00 per person, and tickets for food and games are $1.25 per ticket. What information is needed to calculate the amount of money that Hayden will have left after attending the fair?​

Answers

Answer:

prices of food and games and tickets

Please Help !! What is the surface area of a cylinder with base radius 4 and height 5. Show your work .

Answers

Answer:

226.19

Step-by-step explanation:

A= 2πrh+ 2πr2= 2·π·4·5+2·π·42≈226.19467

or

S = (2 * pi * r^2) + (2 * pi * r * h)

S = (2 * pi * 4^2) + (2 * pi * 4 * 5)

S = (32 pi) + (40 pi) = 72pi = 226.08 ANS.

Answer:

251.333 (Repeating)

Step-by-step explanation:

First, you need to find the area of the circle at the top, which is [tex]\pi r^{2}[/tex]

Next, you multiply it by the height. (I did also use actual pi)

This is if it's total area, not lateral.

What is the value of the remainder?

Answers

[tex] \underline{ \boxed{ \sf{✰\: Option\:D. \:81✓ }}}[/tex]

Refer to the attachment for solution ☘️

Hope it helps

hello what is 5x6 and what is 24 divide by 50

Answers

Answer:

5×6=30

24÷50=0.49....following long division method

Answer number 8 and 9 please

Answers

Answer:

15%

Step-by-step explanation:

number 8 is 15% because you divide 42 by 280 the number of people to get the pecent you ha e which is 15%

How would you find the two triangles are similar?

Answers

Answer:

The answer should be A.

Step-by-step explanation:

Well, to determine how two triangles are similar you first look at the image of what they give you.

As you can see the images shows only degree angles.

Looking at your option to see degree angles.

In some options, there is a side length of a triangle, but we aren't given a side length on both triangles so that answer does that apply.

Our last option is between A and D.

D is false as we determine the triangles are similar to each other.

RCW and VCB are vertically opposite meaning their 25° are the same to each other.

We know that every triangle adds up to 180.

please help im sorry i dont understand shapes and angles

Answers

Answer:

Sorry I can't answer this.

But you may use the protacter to find the angle

? = 73°

There are 7 sides in this polygon

Calculate total interior angles using (n-2) * 180    

                                                                  ["n" denotes number of sides]

Here total interior angle: (7-2)*180 = 900°

The missing angle inside the polygon:

900° - 130° -119° -130° -154° -130° -130°

900° - 793°

107°

A straight line has total 180°

? + 107° = 180°

? = 180° - 107°

? = 73°

If 6 pairs of socks cost $6. 90, what is the price for one pair of socks

Answers

Answer:

$1.15

Step-by-step explanation:

6 pairs of socks cost $6.90.

so every sock is at least one dollar. one dollar per sock, then you take the .90 and divided between the 6 socks and you get 15, so one dollar and 15 cents per sock.

Hope this helps, have a nice day!

1. If the height is 12 inches and the diameter
is 16 inches, what is the volume?
h

Answers

Answer:

2411.52

Step-by-step explanation:

D = r x 2

R = d/2

16/2 = 8

A = πr^[tex]\pixr^{2}[/tex]

A = 3.14 x 8x8

A = 3.14 x 64

A = 200.96

V = A x H

V = 200.96 x 12

V = 2411.52

Write a description of the rule.
(x, y) - (x-1, y +9)
translation 1 unit
to the right and 9 units down
translation 1 unit to the left and 9 units down
translation 1 unit to the
right and 9 units up
translation 1 unit to the left and 9 units up

Answers

The value a = -1 < 0 represents the translation -1 units to the left and

b = 9 > 0 represents the translation 9 units up is correct.

The rule of transformation is defined as,

( x , y ) → ( x + a , y + b ) (equation - 1)

Where, a is horizontal shift and b is vertical shift.

If a>0, then the graph shifts a units right and if a<0, then the graph shifts a units left.

If b>0, then the graph shifts b units up and if b<0, then the graph shifts b units down.

Based on the given conditions, formulate,

(x, y) → (x-1, y+9) (equation - 2)

From (1) and (2) equations,

We get,

a = -1 , b = 9

The value a = -1 < 0 represents the translation -1 units to the left and

b = 9 > 0 represents the translation 9 units up.

Therefore,

Description of the rule is,

The value a = -1 < 0 represents the translation -1 units to the left and

b = 9 > 0 represents the translation 9 units up is correct.

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