All categories

3 years ago

Please help me I do not understand this

Mathematics

1 answer:

stealth61 [152]3 years ago

4 0

That’s a trapezoid. To find the area of a trapezoid, you take the 2 bases (9ft and 14ft) and add them up (23ft). Then divide the sum of the 2 bases by 2 (23/2=11.5). Then you take that and multiply it by the height (7ft). So 11.5(7)=80.5ft^2.
Formula for area of trapezoid:
a+b/2•h
a=base 1. b=base 2. h=height

You might be interested in

Solve the system of equations. How many solutions foes the system have? Help pls :D

jenyasd209 [6]

Answer:

Infinitely Many Solutions

Step-by-step explanation:

Step-1: Re-write the equations into correct form.

=> 6x + 3y = 24

y = -2x + 8

=> 6x - 24 = -3y

-2x + 8 = y

Step-2: Multiply "-2x + 8 = y" by 3.

=> 6x - 24 = -3y

-6x + 24 = 3y

Step 3: Subtract or Add if needed

=> 0 = 0

Because we got a result 0 = 0, this means that the system has infinitely many solutions.

Hoped this helped.

$BrainiacUser1357$

5 0

2 years ago

Look at the steps used when solving 3(x - 2) = 3 for X.

Setler [38]

Answer:

3×-6=3

3×=3+6

3×=9

×=3

Step-by-step explanation:

multiply 3 by the variables in the bracket.

then you will get 3×-6=3.

take the -6 to the right hand side and it becomes+6

then you get 3×=3+6 therefore =3×=9

then divide both sides by 3.

3×÷3 and 9÷3

×=3

4 0

2 years ago

Select all that apply.

WINSTONCH [101]

I don’t understand the question can you give more detail

4 0

3 years ago

Read 2 more answers

A plastic toy submarine is held 15 centimeters below the water surface in a bath tub. The submarine is let go and rises 15 centi

Effectus [21]

Answer:

-15 cm

Step-by-step explanation:or if you are sying AfTER it lets go, then it is 0.

3 0

3 years ago

Read 2 more answers

Susie collected data on the favorite type of music of the students of two grades. The table below shows the relative frequencies

svp [43]

Answer:

In Grade 9, 20% of students liked classical music.

Step-by-step explanation:

Your table was hard to decipher, so I have recreated it here.

$\begin{array}{c|cccc}&\text{Pop}&\text{Classical}&\text{Heavy Metal}&\text{Total}\\\text{Grade 8}&0.50&0.10&0.40&1.00\\\text{Grade 9}&0.53&0.20&0.27&1.00\\\text{Total}&0.36&0.32&0.32&1.00\\\end{array}$

(a) In Grade 9, 53 students liked pop music.

FALSE. 53 % of the students liked pop music. We don't know how many students there were.

(b) In Grade 8, 60% of students liked heavy metal.

FALSE. 40 % of students liked heavy metal.

(c) In Grade 8, 10 students liked classical music.

FALSE. We don't know how many students there were.

(d) In Grade 9, 20% of students liked classical music.

TRUE. 0.20 means 20/100 or 20 %.

4 0

4 years ago