Mathematics Middle School

A:24cm
B:48cm
C:80cm
D:96cm

A:24cmB:48cmC:80cmD:96cm

Answers

Answer 1

Answer:

B: 48 cm^2

Step-by-step explanation:

Area of triangle= 1/2 bh

There are two triangles in the problem.

h = 8

b = 12

1/2 (12) (8) = 48 cm^2

Related Questions

What is the sum?

StartFraction x Over x + 3 EndFraction + StartFraction 3 Over x + 3 EndFraction + 2 Over x + 3 EndFraction
Five-thirds
StartFraction x + 5 Over x + 3 EndFraction
StartFraction x + 5 Over 3 x + 27 EndFraction
StartFraction 6 x Over x + 3 EndFraction

Answers

Answer:

x+5/X+3 is the right answer I can conform this as i just took the edge test.  

Step-by-step explanation:

The sum of given expression is x+5/x+3. Therefore, option B is the correct answer.

What is addition of algebraic expression?

Addition of Algebraic Expressions is the process of collecting like terms and adding them. Identify and add the coefficients of like terms and sum them to find the final expression of given problems.

The given expression is x/x+3 + 3/x+3 + 2/x+3.

Here, denominators of all the fractions are same, which is x+3

Now, x/x+3 + 3/x+3 + 2/x+3

= (x+3+2)/x+3

= x+5/x+3

Therefore, the sum is x+5/x+3.

Learn more about the addition of algebraic expressions here:

https://brainly.com/question/21443100.

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Landon scores 80% on his math test. if there are 40 problems how many did he get correct

Answers

The right answer is 32.

Look at the attached picture

Hope it will help you

Good luck on your assignment

Yoko earns 48 dollars each week working part-time at a bookstore. She earns one additional dollar for each book that she sells. Let A be the amount (in dollars) that Yoko earns in a week if she sells B books. Write an equation relating A to B. Then use this equation to find the amount of money Yoko earns if she sells 21 books.

Answers

Answer:61

Step-by-step explanation: 48 +21 = 61

Find the volume of the cylinder

Answers

Answer:

53 yds

Step-by-step explanation:

Volume= base*height

V= 10*3.5

V= 35

Answer:

3,141.59

Step-by-step explanation:

What is the measure of

Answers

Answer:

x = 37

Step-by-step explanation:

The large angle is a right angle so it equals 90 degrees

53+x = 90

Subtract 53 from each side

53+x-53 = 90-53

x = 37

Answer:

37

Step-by-step explanation:

90-53=37

Determine the scale la
C
10 in
5 in
O A. 10
O B. 2
O c.
NI
O D. 5

Answers

Answer:

B.2

Step-by-step explanation:

To make ΔA'B'C' from ΔABC, we need to use t

he scale factor =|A'B'|/|AB|=10/5=2

Trisha and Malia went to the mall with their mom. Trisha spent $15.60 on a pair of sunglasses. Malia spent $29.80 more than Trisha on a new handbag. Their mom spent 2.5 times as much as Malia on an espresso machine for their kitchen. How much money did their mom spend on the espresso machine?

Answers

Answer:

$113.50

Step-by-step explanation

add $15.60 + $29.80 = $45.40multiply $45.40 x 2.5 = $113.50

The amount of money there mom spent on the expresso machine is $113.5

How to form equation and solve for the variable?

Trisha spent $15.60 on a pair of sunglasses.

Malia spent $29.80 more than Trisha on a new handbag.

Therefore,

Malia expenses = 29.80 + 15.60 = $45.4

Their mom spent 2.5 times as much as Malia on an espresso machine for their kitchen. Therefore,

Mom expenses = 2.5(45.4)

Mom expenses = $113.5

Therefore, there mom spent a total of $113.5 on the expresso machine

learn more on equation here: https://brainly.com/question/21506399

In right triangle ABC, A = 15°, C=37, and ZC is the right angle. Solve the triangle. Round to the nearest tenth, if necessary.

Answers

Answer:

a= 9.58 units

b=35.74 units

Step-by-step explanation:

                 

                 

                 

Which three programs or services are supported by taxes?

1. Fire Departments
2. Medicare
3. Public Education
4. Shopping Malls
5. Theaters

Answers

Answer:

Fire departments, Medicare, and public education.

Step-by-step explanation:

3 out of 5 students say yes if there are 105 students how many say yes

Answers

Answer:

63 students said yes.

Step-by-step explanation:

105/5= 21

21*3= 63

Answer:

C = 63

Step-by-step explanation:

We know that there are 105 students, so we will take the total amount of students and multiply by 3/5, since this is the probably rate is which say yes. in other words --> 105 * 3/5 = 63

If f(x) = 3x2 + 2 and g(x) = -5x +3, find f(g(x)).
PLEASE HELP ME

Answers

Answer:

Option 2: 75x^2 -90x + 29

Step-by-step explanation:

f(g(x))

f(-5x+3) = 3(-5x+3)^2 + 2

= 3 (25x^2 - 30x +9) +2

= 75x^2 - 90x+ 27 + 2

f(g(x)) = 75x^2 - 90x + 29

find the area of each figure . only 3 questions ! 30 pts awarded to u for answering !! thanks !

Answers

Answer:

Number 1 is 391 Number 2 is 663 Number 3 is 12 or 18

Step-by-step explanation:

A customer deposits $500 in an account that pays 4% annual interest. What is the balance after 3 years if the interest is compounded annually? Compound interest formula: V (t) = P (1 + StartFraction r Over n EndFraction) Superscript n t t = years since initial deposit n = number of times compounded per year r = annual interest rate (as a decimal) P = initial (principal) investment V(t) = value of investment after t years

Answers

Answer:

$562.43

Step-by-step explanation:

V(3) = [tex]500 ( 1 + \frac{0.04}{1} )^{3} \\500 (1.04)^{3}[/tex]

     = 562.43

The interest is $562.4 compounded annually.

What is Compound interest?

Compound interest is defined as interest paid on the original principal and the interest earn on interest of principal.

P = $500

r = 4%

t = 3 years

CI = P( 1+ r/100)ⁿ

CI = 500 ( 1+ 4/100)³

CI = 500 ( 1+ 0.04)³

CI = 500 ( 1.04)³

CI = 500 ( 1.1248)

CI = 562.4

Hence, the interest is $562.4 compounded annually.

Learn more about Compound interest here:

brainly.com/question/25857212

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: A marker in the shape of a cylinder has a diameter of 14 mm and a height of 136 mm. Find the volume of the figure described. Use 3.14 for . Round your answer to the nearest tenth, if necessary. *

Answers

Answer:

The volume of the figure is 20,925.0mm^3.

Step-by-step explanation:

Firstly we know that the Diameter = 14mm and Height = 136mm.

Area of Circle = 3.14xR^2    Radius = Diameter / 2

Area of Circle = 3.14x7mm^2 = 153.86mm

Volume = 153.86 x 136 = 20,924.96

Then round, to get 20,925.0

Let me know if this is helpful

Answer:

Volume : ( About ) 20925 mm^3

Step-by-step explanation:

1. If the diameter of this cylinder is 14 mm, the radius ⇒ 14/2 ⇒ 7 mm

2. Now knowing the radius, it would be most convenient to solve for the Base, which is in fact a circle. As we can see, the general Volume of a 3-dimensional figure is Base * height, so this will be helpful. Applying πr^2, Base Area ⇒ π * ( 7 )^2 ⇒ π * 49 π ⇒ 153.86 mm^2

This means that the Volume would be ⇒ Base Area * height ( where height is 138 mm ) ⇒ 153.86 mm^2 * 136 mm ⇒ 20924.96 mm^3

Answer ( Volume ) : ( About ) 20925 mm^3

Geometry pls help I have 5 more questions

Answers

Answer:

[tex]193.14m^2[/tex]

Step-by-step explanation:

Rectangle

[tex]A=wl\\=15.3*11.1\\=169.83m^2[/tex]

Triangle

[tex]A=\frac{ab}{2} \\=\frac{11.1*4.2}{2}\\ =23.31m^2[/tex]

Add both together

[tex]169.83+23.31\\=193.14m^2[/tex]

Can someone help me out with this one i would greatly appreciate it

Answers

Answer:

Surface Area = 2×(5×5 + 5×10 + 5×10) = 250 feet^2

Step-by-step explanation:

WILL MARK BRAINLIEST
IF YOU DONT KNOW DONT ANSWER

Answers

Answer:

y=20

Step-by-step explanation:

Y=20 because 120 divided by 6 equals 20

This green rug has a perimeter of 36 feet. The length is 3 + x and the width is 5. Write an expression that can be used to find the missing value of x. Combine like terms of your equation until it is the most simplified form. What is the value of x? Explain your reasoning.

Answers

Answer:

An equation for this would be : 36=3+x+3+X+5+5

the simplified version would be: 20=2x

The value of x = 10 feet

Step-by-step explanation:

Since perimeter is all the sides added together, and 36 ft is the perimeter,

think of a rectangle, 2 sides would be 3+x and the other 2 would be 5.

thus,

36=3+x+3+x+5+5

now add all like terms and you get 36=16+2x

subtracting 16 on both sides,

20=2x

dividing by 2 both sides,

x=10 feet.

PLEASEEEE HELPP!!!!!!!

Answers

Answer:

im not sure but 36

Step-by-step explanation:

A store sells a coat in three sizes: small, medium and large. The coat comes in red, navy, and tan. Sales numbers are shown in the table.

Find the probability that the next coat sold is a medium.
Write your answer in reduced fraction form.

Answers

Answer:

Next coat sold as medium: 68/190 (35.79%) Rounded to the nearest hundredth) or reduced fraction form of 34/95.

Step-by-step explanation:

Red Medium: 21/58 ( 36.21%)

Navy Medium: 22/66 (33.33%

Tan Medium: 25/66 (37.88%)

Since it's asking for the probability that the next coat is a medium, no matter the color, we add in all numbers and divide it by the added medium from all three colors.

Next coat sold as medium: 68/190 (35.79%) Rounded to the nearest hundredth) or reduced fraction form of 34/95.

Please help and answer all the question too

Answers

To find the volume you use the formula—> length x width x height.

For the first problem you’ll solve 5 x 3 x 2 which is 30.

For the second one you’ll do the same thing. For this one you’ll do 3 x 3 x 2 which is 18.

Answer:

1) 30 units³

2) 18 units³

Step-by-step explanation:

1) The formula for volume is v = height x length x width

The height of the first object is 2, the length is 5, and the width is 3.  2 x 5 x 3 is 30, so the volume is 30 units ³.

2) Use the same formula, v = h x l x w

The height is 3, the length is 3, and the width is 2.

3 x 3 x 2 = 18

So the volume is 18 units³.

Note: Find each of the values by counting the number of squares

What is the slope of the line joining (5,9) and (-2, 9)?

Answers

Answer:

0

Step-by-step explanation:

We can find the slope by

m = (y2-y1)/ (x2-x1)

   = (9-9)/(-2-5)

   0 /-7

  0

Answer:

y=9

Step-by-step explanation:

both y are on 9 so the only things similar and the only line they are on is y=9

Find the missing angle. *
70°
?
40°
40 degrees
100 degrees
25 degrees
70 degrees

Answers

Answer:

70

Step-by-step explanation:

A triangle angles add up to 180 so you add up 70 and 40  and then subtract that answer from 180 and you get 70

Answer:

70 degrees.

All three sides of a triangle added together will equal 180 degrees. If 70 and 40 are added together then you get 110. Then you subtract the total 180 and the two angles that equal 110. You get 70 degrees, which is your missing angle.

What is the volume of the square pyramid shown below with sides that are 12.5 m long and a height of 16 m

Answers

I think the answer is 585.68

Simplify and multiply

Answers

Answer:

hahjskxncncjcickmcbfjd

Is it a work or just for fun

I would greatly appreciate it if you helped me out

Answers

Answer:no correlation

i think the answer is negative

lect the best answer for the question.
9/11= ?/22

Answers

So the right answer is 18.

Look at the attached picture

Hope it will help you

Good luck on your assignment

Solve the inequalities 4y+7>27

Answers

Answer:

y>5

Step-by-step explanation:

4y>20

y>5

Step-by-step explanation:

4y+7>27

4y+7-7>27-7

4y>20

(4y÷4 )>20÷4

y>5

Triangle ABC is an equilateral triangle. Segment AD measures 18 inches. Which statements about the diagram are correct?
Check all that apply.
1. BD = 9 in.
2. AB = 36 in.
3. DC = in.
4. AC = in.
5. BC = in.

answer: 3,4

Answers

Answer:

3,4

Step-by-step explanation:

I got it right

Answer:

3,4

Step-by-step explanation:

f(x) = x2 – X – 1
What is the average rate of change of f over the
interval -1 < x < 1?

Answers

Answer:

4/3

Step-by-step explanation:

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