only answer the “find the error” question…

Answer:

240cm²

Step-by-step explanation:

area of a triangle:

½ x b x h

= ½ x 6 x 4

= 3 x 4

= 12.

since there are 8 of the same triangles, they will all have the same area. so to work out the total area of a triangles, we times the area of one triangle by the 8 triangles in the polygon.

12 x 8 = 96.

for the square in the middle:

area of a square = length x width

area of a square = 12 x 12 = 144.

all we need to do is add these two totals together.

144 + 96 =240cm².

we use the units cm², because we have been multiplying xcm x ycm which can be simplified to cm² :)

Answer:

[tex]2\frac{5}{12}[/tex] is your answer.

Step-by-step explanation:

[tex]7\frac{2}{3} -(1\frac{2}{4} +3\frac{6}{8} )\\\\\frac{23}{3} -(\frac{6}{4} +\frac{15}{4}) \\\\\frac{23}{3} -(\frac{21}{4})\\\\\frac{92-63}{12} \\\\\frac{29}{12} \\\\2\frac{5}{12}[/tex]

Answer:

5/6 = 0.83 repeating

4/3 = 1.3 repeating

Step-by-step explanation:

5 divided by 6 = 0.833333333333333

4 divided by 3= 1.3333333333

Answer:

Step-by-step explanation:

A=a+b2h=13+312·16=352

Answer:

352

Step-by-step explanation:

If we use the area formula for trapezoid which is A=h((a+b)/2) and we plug in which would be ((13 + 31) /2 )* 16 we get 352

Answer:

2y+8+9x

Step-by-step explanation:

2(y+4)+3(x+2x)

times 2 into y and 4 and times 3 into x and  2x

2y+8+3x+6x

add both 3x and 6x x

2y+8+9x

Answer:

Not completely sure about A but I know the rest!

Explanation:

a) burritos are the independent variable because it is labeled as x. X will always be the independent variable. The reason I am confused is because all throughout my learning I was told "time" will always be independent and it had always proved to be true. I would just go with burritos though.

b) linear function is y=0.75x, with 0.75 being the slope representing the amount of time taken to make x amount of burritos. I see you already did most of the work! You just have to remember that to find slope (or m), that you do change in y/change in x.

c) when graphing, draw a point at the origin, (0,0). Then count 0.75 units up, and move 1 unit to the right. Your line should be from left to right going "upward".

d) your answer for d is correct

Answer:

1.

2.

Using the example of- 1, 2, 2, 3, 3, 3, 4, 5, 6, 7

Mean- Average, (the sum of every value)/10(# of values)= 3.2

Median- 3 (even though there are 2 3s, but add them up and divide the sum by 2)

Mode- 3

3. Well... you could use these data to do science reports etc, ofc in the world of academics, you would need to use this kind of statistics terms a lot. In normal life, you might have to compare the price of similar products and see which is the best to purchase, seeing the value of the median of the entire set of data.

Step-by-step explanation:

Answer:

A

Step-by-step explanation

Well the boys can be chosen again all in a row but the girls cdan't therfore the answer is A

Hope This Was Helpful!

The answer to this question is: 15

Answer: c

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

covert all to fractions

3*5 to get 15 and then add 2 to get 17/5

5*5 to get 25 and then add 1 to get 26/5

2*5 to get 10 and then add 4 to get 14/5

remember your signs and get

17/5 + 26/5 - 14/5

Answer:

Structure of Mathematical Systems Mathematics can be divided into four major areas- higher arithmetic, algebra, geometry, and analysis.

Answer:

Sorry I didn't get the answer option first

Step-by-step explanation:

higher arithmetic, algebra, geometry, and analysis.

Arithmetic: It is the oldest and the most elementary among other branches of mathematics. It deals with numbers and the basic operations- addition, subtraction, multiplication, and division, between them.

Algebra: It is a kind of arithmetic where we use unknown quantities along with numbers. These unknown quantities are represented by letters of the English alphabet such as X, Y, A, B, etc. or symbols. The use of letters helps us to generalize the formulas and rules and also helps you find the unknown missing values in the algebraic expressions and equations.

Geometry: It is the most practical branch of mathematics that deals with shapes and sizes of figures and their properties. The basic elements of geometry are points, lines, angles, surfaces and solids.

There are some other branches of mathematics that you would deal with in the higher classes.

Trigonometry: Derived from two Greek terms, i.e., trigon (means a triangle) and metron (means measurement), it is the study of relationships between angles and sides of triangles.

Analysis: It is the branch that deals with the study of the rate of change in different quantities. Calculus forms the base of analysis.

Answer:

2.5

Step-by-step explanation:

If you multiply 3 by 2.5, you get 7.5. I'm assuming the number 3 is the original and the 7.5 is the result? If so, this answer is definitely correct. Hope that helps :)

Answer:

there are many ways

Step-by-step explanation: we walk on the crust of our earth interact with rocks, and some glasses are made of molten lava. which is also from a specific layer of earth (sorry, dont remember which) and some people drill in the mines and maybe even get lower than the crust. i hope this helps :/

Answer:

1) y = -1/2x - 1

2) y = -1

3) y = -2/4

4) y = 5/2 - 3

Step-by-step explanation:

1)

use rise (up or down) over run (left or right)

the rise is -1

the run is 2

therefore, the slope is -1/2

the y intercept is -1 (y intercept is when it touches the Y line)

y = -1/2x - 1

2)

y = -1

3)

y = -2/4

4)

y = 5/2 - 3

Let me know if this helps

Answer:

70.74

Step-by-step explanation:

Answer:

64.8-inches

1.8-yards

Step-by-step explanation:

every inch in ft is 12 so if you multiply that by 5.4 you'll get 64.8 inches

every yard is 3 ft s when you do the math you'll  get 1.8 yards

Answer:

D

Step-by-step explanation:

Label the coordinate plane with the numbers so you can see it, you can also use a coordinate plane from online for a reference

Answer:

91 total coins

63 quarters, 21 dimes, 7 nickels

Step-by-step explanation:

What I did first was did (9 * 0.25) + (3 * 0.10) + (1 * 0.05) to establish a formula.  Next, I did trial and error until I met the appropriate number, but since they needed to stay within a ratio, every time I increased the nickels by one, I needed to increase the dimes by 3 and the quarters by 9.  I eventually got to (63 * 0.25) + (21 * 0.10) + (7 * 0.05) = $18.20

A dollar is usually divided as nickels, dimes and quarters. The total number of coins Inaaya have in her jar is 91

Suppose the real measurements were "a" and "b"

Then their ratio will be formed as

[tex]\dfrac{a}{b} = \dfrac{p \times x}{q \times x} = \dfrac{p}{q}[/tex]

where [tex]x[/tex] is a common factor (not 1)

This shows that to get the real measurements from the given ratio, we need to assume to have some factor possibly cancelled from both the numerator and the denominator.

Thus, a = px, b = qx

For the given case, let Inaaya has got the number of coins per type as:

Thus, total number of coins she get = x + y + z

Since we know that: a Nickel = $0.05, a Dime = $0.10, and a Quarter = $0.25

Thus,

Total value of money = [tex]$0.05 \times x + 0.10 \times y + 0.25 \times z[/tex] (in dollars)

Since it is given that she has got total amount in dollars as $18.20, thus,

[tex]0.05x + 0.1y + 0.25z = 18.2\\[/tex]

Also, let the ratio given is by cancelling a factor F, then

as it is given that:

Number of quarter : Number of dime : Number of nickel = 9 : 3 : 1

Then, using the equation we got for x, y, and z, we get:

[tex]0.05x + 0.1y + 0.25z = 18.2\\\\0.05(F) + 0.1(3F) + 0.25(9F) = 18.2\\0.05F + 0.3F + 2.25F = 18.2\\2.6F = 18.2\\F = 18.2/2.6 = 7[/tex]

Thus, number of quarters = 9F = 9 times 7  = 63

Number of dimes = 3F = 3 times 7 = 21

Number of nickels = 1F = F  = 7

Total coins = 63 + 21 + 7 = 91

Thus, the total number of coins Inaaya have in her jar is 91

Learn more about solving linear equations here:

https://brainly.com/question/13722693

Answer:

D

Step-by-step explanation:

rate of change of function b = (9-1)÷2=4

Step-by-step explanation:

The answer is b. an obtuse. This is because if it were a right-angled triangle, then 90 + 30 + 40 would equal 180 and it doesn't. It's obtuse because 30 + 40 = 70, and triangles have to add up to 180° so the last angle would need to be 110°, which is an obtuse angle. I hope this helps!

Answer:

about 0.456%

Step-by-step explanation:

3/658 * 100= 0,455927

Answer:

reflection over y axis

Step-by-step explanation:

it flips over the y axis like a mirror

Answer:

5-3x12

Step-by-step explanation:

Answer:

x= 2 5/6

Step-by-step explanation:

1/3= 2/6

2 1/2= 2 3/6

2/6+ 2 3/6= 2 5/6

Hope this helps! :)

Answer:

4.9y² + 2y + 4.7

Distributive property

Step-by-step explanation:

[tex]3.9y^2+5.8+4y-1.1-2y+y^2[/tex]

collect and combine like terms:

[tex]\implies 4.9y^2 +2y+4.7[/tex]

Distributive property

The distributive property states that an expression which is given in form of A (B + C) can be solved as A x (B + C) = AB + AC.  Similarly, A (B - C) can be solved as A x (B - C) = AB - AC

If the problem is (5y)³ then the following is true,

Answer:

(5y)(5y)(5y)

Step-by-step explanation:

(5y)³ means that (5y) is being multiplied by itself three times. This can be written as (5y)(5y)(5y).

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

Answer:

5y × 5y × 5y

Step-by-step explanation:

Answer:

Since J = 3, K = 6, and M = 12, the equation means:

(3 • 6) + (4 • 12 ÷ 2) = ???

Step-by-step explanation:

This is because when variables are next to each other and we know what they are equal to, it is the same as saying 3 • 6. So, when two variables are next to each other, they are being multiplied. Same with 4m/2. / can also mean division. And since 4 is next to m, the two are being multiplied. All together, the answer to this equation is 42. Hope this helped!

Answer:

(3*6) +((4*12)/2)

Step-by-step explanation:

j=3 k=6 M=12

two variables next to each other is multiplication

and use order of operations (PEMDAS)

42 is the answer

Answer:

B Twenty eights fifteenths!!

Step-by-step explanation:

Answer:

C is the correct answer

Step-by-step explanation:

Hope this helped you, sorry I don't have an explanation.