Math help please show work

Math Help Please Show Work

Answers

Answer 1

Step-by-step explanation:

8). 5 ft² into squared Inches:

=> since 1 ft² = 144 in²

=> 5x144

=> 720 in²

9). 16 000 cm² to m²:

=> since 1 m²= 10 000 cm²

=> 16 000 ÷ 10 000

=> 1.6 m²

10). 90 km/h to m/h

=> since 1000 m= 1 km

=> 90x1000

=> 90 000 m/h

11). 30 m/s to m/min

=> since 60 s= 1 min

=> 30÷60

=> 0.5 m/min

12). 15 rpm into rps

=> since 1 min= 60 s

=> 15x60

=> 900 rps


Related Questions

Richmond County has a population of 850,000 people, which increases by 10% every year
due to a growing tech industry. What will the population be in 2 years?
If necessary, round your answer to the nearest whole number

Answers

Answer:

If the current population is 850,000. Next year it will be 935,000, and the year following that it will be 1,028,500. This is a linear growth (its growth has a common ratio).

Answer:

1,028,500 people

Step-by-step explanation:

When finding the percentage of a number you moved the decimal place over twice and then multiply.

850,000 x 0.10 = 85,000

10% of 850,000 is 85,000

I then found the population of the 1st year

85,000 + 850,000 = 935,000

then I found 10% of that 1st year

935,000 x 0.10 = 93,500

then added 85,000 and 93,500 to find the population growth in the 2 years

85,000 + 93,500 = 178,500

Then added the population growth to the original population

178,500 + 850,000 = 1,028,500 people

(I'm sorry, my last answer was wrong)

Hope this helps! :)

i need help please thanks​

Answers

Answer:

40 degrees

Step-by-step explanation:

This is a 40 degree angle

Hope this helps!

Find the perimeter of the figure to the nearest hundredth.

Answers

50.26 in.

12 + 5 + 5 + (3.14 x 9)

Pls help me i don't get this

Answers

Answer:

dough for one bath x number of batches = total amount of dough

Step-by-step explanation:

I'm giving a free brainliest to the first person who can answer my question. What is the fifth word of the national anthem? ​

Answers

Answer:

it's by "Say, can you see

By"

I NEED HELP NOW...........NO LINKS AND TROLLING PLS
after being rearranged and simplified, which equation could be solved using the quadratic formula


A. 4x+2=0


B. 3x2-4=3x^2-4x


C. 2x=32


D. 5x^2+8x-12=2x2-x

Answers

Option D

5x²+8x-12=2x²-x5x²-2x²+8x+x-12=03x²+9x-12=0x²+3x-4=0

Now we can apply quadratic formula to find two zeros

Answer:

[tex]\textsf{D.}\quad5x^2+8x-12=2x^2-x[/tex]

Step-by-step explanation:

Quadratic Formula

[tex]x=\dfrac{-b \pm \sqrt{b^2-4ac} }{2a}\quad\textsf{when}\:ax^2+bx+c=0[/tex]

A linear equation in the form [tex]y=mx+b[/tex] cannot be solved using the quadratic formula, as it is not a quadratic equation.

[tex]\textsf{A.}\quad 4x + 2 = 0[/tex]

This is a linear equation and therefore cannot be solved using the quadratic formula.

[tex]\begin{aligned}\textsf{B.}\quad 3x^2-4&=3x^2-4x\\\implies -4&=-4x\end{aligned}[/tex]

This is a linear equation and therefore cannot be solved using the quadratic formula.

[tex]\textsf{C.}\quad 2x=32[/tex]

This is a linear equation and therefore cannot be solved using the quadratic formula.

[tex]\textsf{D.}\quad5x^2+8x-12=2x^2-x[/tex]

[tex]\implies 3x^2+9x-12=0[/tex]

Therefore, this is a quadratic equation in the form [tex]ax^2+bx+c=0[/tex] and therefore can be solved quadratic formula.

a = 3, b = 9 and c = -12

Inputting these into the quadratic formula and solving for x:

[tex]\begin{aligned}\implies x &=\dfrac{-(9) \pm \sqrt{(9)^2-4(3)(-12)}}{2(3)}\\\\x& = \dfrac{-9 \pm \sqrt{225}}{6}\\\\x& = \dfrac{-9 \pm 15}{6}\\\\x&=\dfrac{6}{6},\dfrac{-24}{6}\\\\x&=1, -4\end{aligned}[/tex]

what is 5.316 - 1.942 (show ur work)

Answers

Answer:

3.374

Step-by-step explanation:

[tex]\mathrm{Write\:the\:numbers\:one\:under\:the\:other,\:line\:up\:the\:decimal\:points.}[/tex]

[tex]\mathrm{Add\:trailing\:zeroes\:so\:the\:numbers\:have\:the\:same\:length.}[/tex]

[tex]\begin{matrix}\:\:&5&.&3&1&6\\ -&1&.&9&4&2\end{matrix}[/tex]

[tex]\mathrm{Subtract\:each\:column\:of\:digits,\:starting\:from\:the\:right\:and\:working\:left}[/tex]

[tex]\mathrm{In\:the\:bolded\:column,\:subtract\:the\:second\:digit\:from\:the\:first}:\quad \:6-2=4[/tex]

[tex]\frac{\begin{matrix}\:\:&5&.&3&1&\textbf{6}\\ -&1&.&9&4&\textbf{2}\end{matrix}}{\begin{matrix}\:\:&\:\:&\:\:&\:\:&\:\:&\textbf{4}\end{matrix}}[/tex]

[tex]\mathrm{In\:the\:bolded\:column,\:subtract\:the\:second\:digit\:from\:the\:first}[/tex]

[tex]\frac{\begin{matrix}\:\:&5&.&3&\textbf{1}&6\\ -&1&.&9&\textbf{4}&2\end{matrix}}{\begin{matrix}\:\:&\:\:&\:\:&\:\:&\textbf{\:\:}&4\end{matrix}}[/tex]

[tex]\mathrm{The\:bottom\:number\:is\:larger\:than\:the\:upper\:number.\:\:Try\:to\:'borrow'\:a\:digit\:from\:the\:left.}[/tex]

[tex]\mathrm{The\:top\:digit\:is\:not\:bigger\:than\:the\:bottom\:one.\:\:Try\:to\:'borrow'\:a\:digit\:from\:the\:left.}[/tex]

[tex]\frac{\begin{matrix}\:\:&5&.&\textbf{3}&1&6\\ -&1&.&\textbf{9}&4&2\end{matrix}}{\begin{matrix}\:\:&\:\:&\:\:&\textbf{\:\:}&\:\:&4\end{matrix}}[/tex]

[tex]\mathrm{Borrow\:}1\mathrm{\:from\:}5\mathrm{.\:\:The\:remainder\:is\:}4[/tex]

[tex]\frac{\begin{matrix}\:\:&\textbf{4}&\:\:&10&\:\:&\:\:\\ \:\:&\textbf{\linethrough{5}}&.&3&1&6\\ -&\textbf{1}&.&9&4&2\end{matrix}}{\begin{matrix}\:\:&\textbf{\:\:}&\:\:&\:\:&\:\:&4\end{matrix}}[/tex]

[tex]\mathrm{Add\:}1\mathrm{\:ten\:to\:}3:\quad \:10+3=13[/tex]

[tex]\frac{\begin{matrix}\:\:&4&\:\:&\textbf{13}&\:\:&\:\:\\ \:\:&\linethrough{5}&.&\textbf{\linethrough{3}}&1&6\\ -&1&.&\textbf{9}&4&2\end{matrix}}{\begin{matrix}\:\:&\:\:&\:\:&\textbf{\:\:}&\:\:&4\end{matrix}}[/tex]

[tex]\mathrm{Borrow\:}1\mathrm{\:from\:}13\mathrm{.\:\:The\:remainder\:is\:}12[/tex]

[tex]\frac{\begin{matrix}\:\:&4&\:\:&\textbf{12}&10&\:\:\\ \:\:&\linethrough{5}&.&\textbf{\linethrough{13}}&1&6\\ -&1&.&\textbf{9}&4&2\end{matrix}}{\begin{matrix}\:\:&\:\:&\:\:&\textbf{\:\:}&\:\:&4\end{matrix}}[/tex]

[tex]\mathrm{Add\:}1\mathrm{\:ten\:to\:}1:\quad \:10+1=11[/tex]

[tex]\frac{\begin{matrix}\:\:&4&\:\:&12&\textbf{11}&\:\:\\ \:\:&\linethrough{5}&.&\linethrough{13}&\textbf{\linethrough{1}}&6\\ -&1&.&9&\textbf{4}&2\end{matrix}}{\begin{matrix}\:\:&\:\:&\:\:&\:\:&\textbf{\:\:}&4\end{matrix}}[/tex]

[tex]\mathrm{In\:the\:bolded\:column,\:subtract\:the\:second\:digit\:from\:the\:first}:\quad \:11-4=7[/tex]

[tex]\frac{\begin{matrix}\:\:&4&\:\:&12&\textbf{11}&\:\:\\ \:\:&\linethrough{5}&.&\linethrough{13}&\textbf{\linethrough{1}}&6\\ -&1&.&9&\textbf{4}&2\end{matrix}}{\begin{matrix}\:\:&\:\:&\:\:&\:\:&\textbf{7}&4\end{matrix}}[/tex]

[tex]\mathrm{Place\:the\:decimal\:point\:in\:the\:answer\:directly\:below\:the\:decimal\:points\:in\:the\:terms}[/tex]

[tex]\frac{\begin{matrix}\:\:&4&\textbf{\:\:}&12&11&\:\:\\ \:\:&\linethrough{5}&\textbf{.}&\linethrough{13}&\linethrough{1}&6\\ -&1&\textbf{.}&9&4&2\end{matrix}}{\begin{matrix}\:\:&\:\:&\textbf{.}&3&7&4\end{matrix}}[/tex]

[tex]\mathrm{In\:the\:bolded\:column,\:subtract\:the\:second\:digit\:from\:the\:first}:\quad \:4-1=3[/tex]

[tex]\frac{\begin{matrix}\:\:&\textbf{4}&\:\:&12&11&\:\:\\ \:\:&\textbf{\linethrough{5}}&.&\linethrough{13}&\linethrough{1}&6\\ -&\textbf{1}&.&9&4&2\end{matrix}}{\begin{matrix}\:\:&\textbf{3}&.&3&7&4\end{matrix}}[/tex]

[tex]=3.374[/tex]

Hence the correct answer is 3.374

NEED ANSWERS NOW!!! Solve for x. ​

Answers

Answer:

im not sure i got stuck here ;; but i started sort of

Step-by-step explanation:

The first step is to get the inner angles. I'll start with the one at 60 degrees and call it A and go counter clockwise

A flat angle is 180 and -60 makes it 120 = Angle A

180-100=80=B
180-20=160=C

Then when you're trying to calculate a figure with more than 4 corners, you're supposed to divide them into triangles. Now we have a hexagon and the total degrees is 720. And we know that we have 2 6x and they're the angles

Select all expressions that represent a correct solution to the equation 6(x+4)=20

A. (20−4) ÷ 6
B. 16(20 − 4)
C. 20 − 6 − 4
D. 20 ÷ 6 − 4
E. 1/6(20 − 24)
F. (20−24) ÷ 6

Answers

Answer:

D. 20 ÷ 6 − 4

E. 1/6(20 − 24)

F. (20−24) ÷ 6

Step-by-step explanation:

6(x + 4) = 20

6(x) + 6(4) = 20

6x + 24 = 20

     - 24  - 24

6x = -4

/6    /6

x = -4/6 or x = -2/3

D. 20 ÷ 6 − 4

20/6 - 4

20/6 - 24/6

-4/6 = -2/3

E. 1/6(20 − 24)

1/6(-4)

-4/6 = -2/3

F. (20 − 24) ÷ 6

- 4 / 6

-4/6 = -2/3

Hope this helps!

Urgent fastttttttttttttttttttttttttttt 50 points

Answers

Answer:

I did this. But there's only 5 points . But it's ok

*PLS HELP!!* {The Picture Is In The Attachment}​

Answers

Answer:

Step-by-step explanation:

Supplementary angles add up to 180

∠1 + 50 = 180

∠1 = 180 - 50

∠1 = 130

∠3 +50 = 180   {Supplementary}

∠3 = 180 - 50

∠3 =130

⇒∠1 = ∠3 = 130

Answer:

supplementary means that < 1 and 50° together must be equal to an angle of 180°

so 180° - 50° = 130°

the second one its the same.. 50° + < 3 = 180°

so 180° - 50° = 130°

so you find out that < 1 = < 3

..if this m is meant like x and therefore this is an equation

m < 1 = m < 1 / ÷ < 1

m = m and that is true..

There were 150 students wearing red shirts today. If there are a total of 300 students at school, about how many out of a class of 30 could be wearing red shirts?

Answers

Answer:

I think it's 15 students

Step-by-step explanation:

i think since 150 is half of 300 so in each class there should also be half of the people wearing red

Answer:

150 of 300, 150 is 50 % of 300 so 300/30 = 1 , so I think 15 of the students should be wearing red

Step-by-step explanation:

1
-
The expression 3(x + 4) - (2x + 7) is equivalent to
(1) x + 5
12.
(3)x - 3
(2) x – 10
(4) x + 11
-

Answers

3(x + 4) - (2x + 7)

3(x + 4) - 1(2x + 7)
3x + 12 - 2x -7
x + 5

a) x + 5

Hope this helps!

4. Jackie obtains a 30-year 4/2 ARM at 5% with a 4/7 cap structure in the amount of $313,500.
What is the monthly payment during the initial period?
(1 point)
$1,832.69
$1,496.70
O $1,682.94
$870.83

Answers

The interest rate in during the initial period is given from which the

monthly payment is calculated to be $1682.94

Response (approximate value):

The monthly payment during the initial period is $1,682.94

What is an ARM and how does it determine the monthly payment?

The type of loan Jackie obtains is an Adjustable Rate Mortgage, ARM,

loan, which is a 4/2 ARM

Therefore;

The introductory interest rate of 5% is fixed for the first 4 years, and will

be adjusted every 2 years after the first four years.

[tex]Initial \ monthly \ payment, \ M = \mathbf{\dfrac{P \cdot \left(\dfrac{r}{12} \right) \cdot \left(1+\dfrac{r}{12} \right)^n }{\left(1+\dfrac{r}{12} \right)^n - 1}}[/tex]

Where;

M = The monthly payment during the initial period

P = The amount on loan = $313,500

r = 5% = 0.05

n = 30 × 12 = 360

Which gives;

[tex]M = \dfrac{313500 \times \left(\dfrac{0.05}{12} \right) \cdot \left(1+\dfrac{0.05}{12} \right)^{360} }{\left(1+\dfrac{0.05}{12} \right)^{360} - 1} \approx \mathbf{1682.94}[/tex]

The monthly payment during the initial period, M ≈ $1,682.94

Learn more about mortgage payment calculations here:

https://brainly.com/question/2151755

Find the slope of the line that passes through (6,5) and (2,5).
0
Undefined
4
-4
D

Answers

Slope of line passing through two points (x1,y1 ) and (x2 ,y2 ) is given by

m= y2-y1/x2 −x1

Since the line passes through (−2,5) and (6,4)

We have

Slope(m)= 4-5/6−(−2) =− 1/8

Robert has 99 buttons. Jack has b more buttons than Robert. Choose the expression that shows how many buttons Jack has

Answers

Solution:

Note that:

Robert + b = JackRobert = 99 buttons

Substituting the values into the equation:

Robert + b = Jack=> 99 + b = Jack

This means that Jack has 99 + b buttons.

ANYONE SMART AT MATH NEED HELP ON THIS
A bag of marbles contains 6 blue marbles and 1 green marble. Mary and Frank will draw a blue marble followed by a green marble, without replacing the first marble. Mary says the probability will be 6/49, and Frank says that the probability will be 1/7. Who is correct? Explain and justify your answer by showing work.
---------------Is correct because___

Answers

Answer:

Frank is correct, because (see explanation below)

Step-by-step explanation:

Let's separate into two cases:

Case 1: Blue marble

[tex]\frac{6}{7}[/tex] (There are 6 blues in the bag and 7 marbles in total in the bag, we put the 6 in the numerator because we want a blue marble first.)

Case 2: Green marble

[tex]\frac{1}{6}[/tex] (There is only 1 green in the bag and 6 marbles remaining in the bag, because we already took 1 blue out in Case 1. We put 1 in the numerator because we want the green marbloe only.)

Multiply Case 1 with Case 2 because they are a combination:

[tex]\frac{6}{7} * \frac{1}{6} = \frac{1}{7}[/tex]

Therefore Frank is correct.

Please this is due tonight!!! Express given logarithm in terms of a, b and c.

Answers

[tex]\textit{Logarithm Change of Base Rule} \\\\ \log_a b\implies \cfrac{\log_c b}{\log_c a}\qquad \qquad c= \begin{array}{llll} \textit{common base for }\\ \textit{numerator and}\\ denominator \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \log_5(18)\implies \cfrac{\log(18)}{\log(5)}\implies \cfrac{\log(2\cdot 3\cdot 3)}{\log(5)}\implies \cfrac{\log(2)+\log(3)+\log(3)}{\log(5)}[/tex]

[tex]\begin{cases} \log(3)=a\\ \log(2)=b\\ \log(5)=c \end{cases}\implies \cfrac{b+a+a}{c}\implies \cfrac{b+2a}{c} \\\\[-0.35em] ~\dotfill\\\\ \log_5^2(18)\implies [\log_5(18)]^2\implies \left( \cfrac{b+2a}{c} \right)^2\implies \cfrac{(b+2a)^2}{c^2} \\\\[-0.35em] ~\dotfill\\\\ ~\hfill \cfrac{b^2+4ab+4a^2}{c^2}~\hfill[/tex]

Identify the percent of change as an increase or a decrease. Then find the percent of change. Round to the nearest tenth of a percent if necessary.
12 inches to 36 inches

Answers

Answer: 200% increase

Step-by-step explanation:

Being an increase from 12inches to 36inches, we will calculate the percentage increase.

%increase = final length -initial length/initial length × 100%

Initial length = 12inches

Final length = 36inches

%increase = 36-12/12 × 100%

%increase = 24/12 × 100%

%increase = 200%

Answer:

200% increase

Step-by-step explanation:

percent change = [(difference between initial and final value) ÷ initial value] x 100

⇒ percent change = [(36 - 12) ÷ 12] x 100 = 200% increase

HELP ASAP NOW LOOK AT PICTURE!!! 30 POINTS!!!

Answers

Answer:

Well

If we choose plan B then it would be better. 15 cents a messages would be 3 messages in total if we choose plan b.

Step-by-step explanation:

Identify the remainder when x3 - 3x2 - 9x is divided by x - 6.

Answers

Let p(x) be any polynomial of degree greater than or equal to one and let 'a' be any real number. If a polynomial p(x) is divided by x - a then the remainder is p(a). Hence by the remainder theorem, 0 is the remainder when x3 + 3x2 + 3x + 1 is divided by x + 1.

At a school fundraiser, for every 12 boxes of chocalate sold a
student
earns 5 points. If maria sold 72 boxes, how many points did she earn ?

Answers

Answer/Step-by-step explanation:

72/12=6

6x5=30

30 points.

PLEASE HELP I NEED TO PASS MATH!

Answers

Answer:

a translation moves a thing up and down or left and right.

Step-by-step explanation:

so true?

Answer:

True

Step-by-step explanation:

A translation means you are moving a figure in some direction(s). This can mean both vertically and horizontally.

In this formula, which calculation is performed first? =b4*100 15/3.

Answers

Answer:

see below

Step-by-step explanation:

Is there an operator (+, -, x, /) missing between 100 and 15?

Assume the expression is

=b4*10015/3

The order of operations says that multiplications and divisions are done as they occur from left to right.

The number in cell b4 will be multiplied by 10015, then that result will be divided by 3.

If the expression is supposed to be  =b4*100*15/3, then the order is

cell b4 is multiplied by 100, then that is multiplied by 15, then THAT is divided by 3.

If the edge length of a cube is 11 feet, what is the correct way to write the expression to represent the volume of the cube in exponential form? (2 points)

11 × 11 × 11
3 to the power of 11
1 to the power of 1
11 to the power of 3

Answers

Answer: 11 to the power of three

Answer

3 to the power of 11

Step-by-step explanation:

Please help. I'll mark brainliest. Thanks!

Answers

Answer:

option a please mark me as brainlist please

pls help me

i don't understand it

Answers

Replace x and y with the given values and solve the equations:

A) 3(5) + 2 = 17

B) 2(5)^2 = 50

C) (5-2)^2 = 9

Answer:

just replace the x and y in your problems with the given respective integers.

Step-by-step explanation:

x is 5, y is 2

a.

3x+y = 3×5 +2 = 15 + 2 = 17

b.

2x² = 2 × 5² = 2 × 25 = 50

c.

(x-y)² = (5-2)² = (3)² = 9

Aline has a stope of 3 and passes through the point (0,6). What is its equation in
sloge-intercept form?
write your answer using integers, proper fractions, and improper fractions in simplest form
Suomi

Answers

Answer:

Step-by-step explanation:

Answer:

y=3x+6

Step-by-step explanation:

what is 13 9/2 ÷ 2 9/12 = ?

Answers

Answer:

6 4/11

Step-by-step explanation:

An item on sale costs 20% of the original price. The original price was $68.

Answers

Answer:

20% of $68 is $13.60

Step-by-step explanation:

 (20/100)x68

(20x68)/100 

1360/100 = 13.6

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