How to do this question

How To Do This Question

Answers

Answer 1

Answer:

b = 5

Step-by-step explanation:

Area of the triangle = b * 12/2 = 6b

Area of the rectangle = 9 * 12 = 108

Total area = 6b + 108  = 138

6b = 138 - 108 = 30

so b = 30/6 = 5


Related Questions

Ruby invested $300 in an account paying an interest rate of 6.1% compounded continuously. Assuming no deposits or withdrawals are made, how much money, to the nearest hundred dollars, would be in the account after 13 years?

Answers

[tex]~~~~~~ \textit{Continuously Compounding Interest Earned Amount} \\\\ A=Pe^{rt}\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$300\\ r=rate\to 6.1\%\to \frac{6.1}{100}\dotfill &0.061\\ t=years\dotfill &13 \end{cases} \\\\\\ A=300e^{0.061\cdot 13}\implies A=300e^{0.793}\implies A\approx 700[/tex]

I need these please

Answers

Answer:

Step-by-step explanation:

2x+30=180

2x      = 150

x        =  75

y=30

do the lengths 30.1, 0.8, 31 make a triangle & why

Answers

Step-by-step explanation:

If this were to make a triangle, then 30.1 and 0.8 would be the shorter sides and 31 would be the longest side.

The sum of the lengths of the shorter sides is 30.1+0

8=30.9.

Since this is less than the length of the segment that would be the longest side, by the triangle inequality theorem, these side lengths would not make a triangle.

I need some help with this math problem

Answers

it's letter A

because

150×2=300

i hope this helps<3

Write the equation of the line in fully simplified slope-intercept form

Answers

Answer:

y=-3x-6

Step-by-step explanation:

Where do I plot the graph coordinates

Answers

Step-by-step explanation:  

So... where it says Y=4x-1, take the 4x and plot it on the y axis, next on the equation it says -1, plot -1 on the left ( X-axis)

I hope this helps

Solve the equation. 4^x + 2 = 4^12

Answers

Answer:

x = 10

Step-by-step explanation:

To solve, divide both sides by the base number then solve the exponents as an equation.

[tex]4^{x+2} = 4^{12}[/tex]

x = 10

30 POINTS sort these numbers from least to greatest

Answers

Answer:

(-2)3 -60, s5, 22, -5.1, 36, 78, 97

Habeeb open a saving account and put 400 Naira into it at the end of 2 years the money had earned 24 Naira simple interest . At what rate percent per annum was the interest paid

Answers

the rate precent per annum was the interest paid 20

The half-life of a radioactive kind of tin is 10 days. If you start with 66,048 grams of it, how much will be left after 50 days?

Answers

Answer:

The answer is 2064

4 1\10÷2
[tex]4 \frac{1}{10?} \div 2[/tex]
plssss help​

Answers

2.05 I think if the question was just 4 1/10 ÷2

Answer:-

[tex]\longrightarrow \sf 2\dfrac{1}{20}[/tex]

Solution:-

[tex]\begin{gathered}\\\implies\quad \sf 4 \frac{1}{10} \div 2 \\\end{gathered} [/tex]

Converting to mixed fraction-

[tex]\begin{gathered}\\\implies\quad \sf \frac{4\times 10+1}{10} \div 2 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf \frac{41}{10} \div 2 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf \frac{41}{10} \div \frac{2}{1} \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf \frac{41}{10} \times \frac{1}{2} \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf \frac{41}{20} \\\end{gathered} [/tex]

Writing final answer again in mixed form

[tex]\begin{gathered}\\\implies\quad \sf 2\frac{1}{20} \\\end{gathered} [/tex]

In a class of 60 children 3/10 we're absent. The rest were present. How many pupils are present.​

Answers

Answer: 42

Step-by-step explanation:

Answer:

A class of 60 children

3/10 were absent

So we’re trying to find how many pupils are here (kids).

So lets use percentage.

Percentage means out of a hundred so 3/10 is 30/100.
Multiply 10 on each numerator/denominator and you’ll get 30/100.

Now 30/100 is 30 percent.

We are to find 30 percent of 60.

18 pupils are absent.

We’re trying to find who’s here so

60 - 18 = 42

42 pupils are present

A rollercoaster rises 80 feet before dropping 110 feet. Describe the height of the rollercoaster

Answers

Answer:80 + 110

Step-by-step explanation:

The factory makes 400 cars per day.
If the
workday is eight hours long,
what is the hourly rate at which cars
are produced?

Answers

Answer:

The answer is 50 cars per hour

Step-by-step explanation:

Simply divide 400 by 8 to get your answer

Hope that helps!

Place the following temperatures in order from coldest to hottest: -8°C, 10°C, -5°F, 40°F
a.
-5°F, -8°C, 40°F, 10°C
b.
-5°F, -8°C, 10°C, 40°F
c.
-8°C, -5°F, 10°C, 40°F
d.
-8°C, -5°F, 40°F, 10°C
ANSWER IS A

Answers

Answer:

a. -5°F, -8°C, 40°F, 10°C

Step-by-step explanation:

-17°C is when F = 0, so -8°C is way higher than -5°F. -8°C comes right after, and 40°F is a bit lower than 10°C. You can convert F to C is °F = (C * 9/5) + 32 and you can convert C to F with (F -32) x 5/9

An irregular polygon is shown below:
4 units
3 units
8 units
The area of the irregular polygon is
square units. (4 points)

Answers

Answer:

Step-by-step explanation:

Two rectangles: one is 4 x 3, one is (8 - 4) x (3 - 1)

areas are: 4 x 3 = 12 and 4 x 4 = 16

total area = 12 + 16 = 28 units²

Estimate the answer by rounding each fraction to the nearest whole or half and then subtracting.you have to download the image

Answers

Answer:

5 37/45

Step-by-step explanation:

9 3/5 - 3 7/9

Find like terms

9 27/45 - 3 35/45

Subtract whole numbers

9 - 3 = 6

Subtract fractions

27/45 - 35/45 = -8/45

Subtract both of the numbers

6  - 8/45 = 5 37/45

In a group of 25 students at lunch, 10 prefer ketchup on their hamburger, 10 prefer mustard on
their hamburger, and 5 like both ketchup and mustard on their hamburger. The rest of the
students in the group prefer neither. What is the probability that a student selected from this
group will prefer ketchup or mustard on their hamburger?

Answers

Answer:

15/25 or 3/5 or 60%

Step-by-step explanation:

P(K or M) = P(K) + P(M) - P(K and M)

               = [tex]\frac{10}{25}[/tex] + [tex]\frac{10}{25}[/tex] - [tex]\frac{5}{25}[/tex]

               = [tex]\frac{15}{25}[/tex]

               = .6 or 60%

these numbers form an addition and subtraction fact family 6,7,13 what is the correct answer​

Answers

Answer:

6, 7, 13. Choose the fact family formed by these numbers. 7 + 13 = 20 13 + 7 = 20 13 – 13 = 0 ... 6 x 7=42 42/7=6 Is correct my answer?

1 answer

·

Top answer:

7 + 6 = 13 13 = 7 + 6 13 – 6 = 7 7 = 13 – 6

Step-by-step explanation:

Answer:

13-6=7

13-7=6

7-6=13

6-7=13

Step-by-step explanation:

give brainly if it helps pls :D

Which of the following statements does NOT describe measurement?    a. measurement is simply the attachment of a number to a quality that is defined by an expert b. in measurement ,we connect a numerical value to a property of an object that we seek to measure c.measurements in standardised unites provides a universal language that can be understood across the globe d. measurement is an action whereby we give a mathematical meaning to a phenomenon​

Answers

Answer:

A is the correct answer

Step-by-step explanation:

Probably

12. P (7,r) = 5040. Find r

A. 5
B. 6
C. 7
D. 8​

Answers

Answer:

B

Step-by-step explanation:

P(7,r) = 5040

[tex]P(n,r)=\dfrac{n!}{(n - r)!}\\\\\\n = 7 \\\\\dfrac{7!}{(7 - r)!}=5040\\\\\\7! = (7-r)!*5040\\\\(7-r)!=\dfrac{5040}{7*6*5*4*3*2*1}\\\\\\(7-r)!=\dfrac{5040}{5040}\\\\\\(7-r)!=1\\\\[/tex]

(7 - r)! = 1!

7 -r = 1

7 = 1 + r

7 - 1 = r

r = 6

Answer:

  12.  B or C

  13.  C

  14.  A

  15.  A

Step-by-step explanation:

These problems involve various counting techniques. For combinations and permutations, there are formulas to aid in the counting. For other situations, you may need to list possibilities.

__

12.

  P(7, r) = 5040 . . . . . given

  P(7, r) = 7!/(7 -r)! = 5040

  5040/(7 -r)! = 5040 . . . . . evaluate 7!

  (7 -r)! = 1 . . . . . . . . . . . multiply by (7-r)!/5040

We know that both 0! and 1! = 1, so this has two solutions:

  7 -r = 0   ⇒   r = 7

  7 -r = 1   ⇒   r = 6

Both choices B and C are correct.

The attached calculator output confirms this result.

__

13.

The formula of choice C is correct:

  C(n, r) = n!/((n-r)!r!)

__

14.

The number of permutations of the 9 letters is reduced by the numbers of permutations of letters that are indistinguishable. That is, the 9 letters can be rearranged 9! ways, but the 4 Es are indistinguishable, so a factor of 4! must be removed from that result. Similarly, the two Ns and two Ss are indistinguishable, so additional factors of 2! must be removed. The number of arrangements is ...

  9!/(4!2!2!) . . . . matches choice A

__

15.

The 5 students can be arranged in 5 consecutive chairs in P(5, 5) = 5! = 120 ways. Those 5 consecutive chairs can start in chairs 1 through 6, so there are 6×120 = 720 ways the 5 students can sit together in 10 chairs.

An equilateral triangle forms a semi-regular tessellation with which of the following regular polygons

Answers

a square and pentagon

Answer:

Square and hexagon

Step-by-step explanation:

Algebra
9.5.3 Test (CST): Polynomials
Question 24 of 25
Add.
(2x - 7) + (3x - 1)
O A. 5x + 8
O B. 5x + 6
O C. 5x - 6
O D. 5x – 8
PREVIOUS
Previous
Can I get some help??

Answers

(2x - 7) + (3x - 1)
=5x+8
5x because 2x plus 3x and positive 8 because in rules of addition, two same integers will result in positive so it will be 7 plus 1 which is 8

The simplified expression is 5x - 8.

So the correct answer is (D) 5x - 8.

What is a polynomial?

Polynomial is an equation written with terms of the form kx^n.

where k and n are positive integers.

There are quadratic polynomials and cubic polynomials.

Example:

2x³ + 4x² + 4x + 9 is a cubic polynomial.

4x² + 7x + 8 is a quadratic polynomial.

We have,

To simplify the expression, we need to combine like terms.

(2x - 7) + (3x - 1)

= 2x + 3x - 7 - 1 (grouping like terms)

= 5x - 8 (combining like terms)

Therefore,

The simplified expression is 5x - 8.

Learn more about polynomials here:

https://brainly.com/question/2284746

#SPJ7

5x = 40 what does the x going to equal

Answers

start by diving 5 from each side so you are lrft with x on the left side, 40/5=8. now our equation is x=8 and that's the answer!

Answer:

[tex]x=8[/tex]

Step-by-step explanation:

Given the following question:

[tex]5x=40[/tex]

When solving one-step equations, you need to remember we are trying to isolate the variable. In this case to isolate the variable we need to divide both sides by 5.

[tex]5x=40[/tex]
[tex]5x\div5=x[/tex]
[tex]40\div5=8[/tex]
[tex]x=8[/tex]

Which means the value of x will be "8."

Hope this helps.

4,9,10,10,12,14,17,18,18,19

Answers

Answer:

what are you looking for? are you looking for mean,median,and mode,

Step-by-step explanation:

If so here they are.

Mean=13.1

The mean is the average of the numbers in the data set.

Median=13

The median is the middle number from it being sorted least to greatest.

mode=10,18

The mode is the number that appears most in a data set or sometimes numbers like right now it's numbers,both 10 and 18 appear twice.

Range=15

The range is the highest number subtracted by the lowest number. so what is 19 - 4?it is 15.

minimum=4

The minimum in a data set is the lowest number.

Maximum=19

The maximum is the highest number in a data set.

IQR is 8 because the IQR is based on the lower quartile subtracted by the higher quartile so 18 - 10=8

Hope this ws what you was looking for.

Hope it helps have a great afternoon:)

Given the equation 2x = 4y - 3 write another linear equation that would create a system that has the number of solutions listed
A . 0 Solutions
B . 1 Solution
C . Infinitely many solutions

Answers

Answer:

A. [tex]2x-4y=\pi[/tex]
B.  [tex]x=1[/tex]

C. [tex]2x-4y=3[/tex]

Step-by-step explanation:

A. [tex]2x-4y=\pi[/tex]. Any number could work as long as the coefficients for x and y stays the same. You are basically imposing that the quantity 2x-4y (if you bring 4y to the LHS) is equal to both -3 AND [tex]\pi[/tex], or any number you like. But yesterday was 3/14 so let's pick a fun number!

B.  [tex]x=1[/tex] Or [tex]y=1[/tex]. Or as long as you don't pick the same ratios of x and y you're golden. But x=1 is the easiest that comes to mind

C. [tex]2x-4y=3[/tex]. To get infinitely many solutions you just have to rewrite the equation again. Maybe move things around if you prefer, or multiply everything by a number you lile.

The sum of two numbers is 64. The difference between the numbers is 14. Write a system
to find both numbers. Remember to show all work.

Answers

Answer:

They say that the sum of the two numbers (x and y) is 64, so we can write our first equation by adding them and setting that sum equal to 64:

x + y = 64

The question also tells us that their difference is 14. Similarly to before, we'll just subtract the two numbers and set that difference equal to 14:

x - y = 14

Now from here, you know how to continue with substitution to find the values for x and y. Just remember when you get a word problem to break it down and look for key words like sum, difference, or product, and from there you'll be able to build your system of equations.

What is the domain?

A: (1, 5]

B: (-2, 2]

C: [-2, 2)

D: [2, -2)

E: [1, 5)

Answers

Answer:

B...look at the x axis and what part of the acis the graph is on.

What is the exact area of the following circle? *

Answers

Area = r^2 x pi

R = 1/2 diameter = 7.5 cm


Area = 7.5^2 x pi

Area = 56.25pi cm^2

Quick will give brainlyest. What is the distance between points A and B? Use absolute value to explain your answer.

Answers

Answer:

Step-by-step explanation:

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