Answer:
8m
Step-by-step explanation:
We can convert the trapezium into a rectangle to make finding the area easier.
Say that the top side is 9m, and that the bottom side is 12m.
12 - 9 = 3
3/2* = 1.5
*Note that we are dividing by two to get the "overhang" of the bottom side.
Now that we have our overhang, we can find the length of the "t-rect"**.
**"T-rect" refers to a rectangle that has been formed by changing a trapezium into a rectangle.
12 - 1.5 = 10.5
9 + 1.5 = 10.5
The length of the t-rect is 10.5.
84/10.5 = 8
The height of the t-rect is 8m.
Since the height of the original trapezium is equal to the height of the t-rect***,
***Since we have only adjusted the length
this also means that 8m would also be the height of the original trapezium.
Now, there is a second way of doing this.
Find the median of 12 and 9.
9, 10, 11, 12
10, 11
The median is 10.5.
84/10.5 = 8
You get the same answer. These methods could be used as a solve-then-check method to another problem like these.
Hope this helps. Have a nice day.
Can anyone help me please
Answer:
Step-by-step explanation:
Sorry bro can’t help you on that one
If f(x)= 3x^3+4 find f(-3)
Need help with this trigonometry word problem
The angle of elevation of the top of the building at a distance of 50 m from its foot on a horizontal plane is found to be 60°. Find the height of the building.
Please show your work
Answer:
[tex] \huge \boxed{ \boxed{ 50 \sqrt{3} \: or \: 86.6}}[/tex]
Step-by-step explanation:
to understand thisyou need to know about:trigonometryPEMDASlet's solve:to find the height we need to use tan function because we are given adjacent and angle and we need to figure out opposite (height) [tex]\tan(\theta)=\dfrac{opposite}{adjacent}[/tex]
let opposite be AC
let adjacent be BC
according to the question:
[tex] \quad \: \tan( {60}^{ \circ} ) = \dfrac{AC}{BC} [/tex]
now we need a little bit algebra to figure out AC (height)
[tex] \sf \: substitute \: the \: given\: value \: of \: BC : \\ \tan( {60}^{ \circ} ) = \frac{AC}{50} [/tex][tex] \sf sustitute \: the \: value \: of \: \tan( {60}^{ \circ} ) \: i.e \: \sqrt{3} : \\ \sqrt{3 } = \frac{AC }{50} [/tex][tex] \sf cross \: multiplication: \\ 50 \sqrt{3} = AC[/tex][tex] \sf swap \: sides \: (your \: wil) : \\ AC = 50 \sqrt{3} \\AC = 86.6 \: ( \sf \: decimal \: if\: needed)[/tex][tex]\text{we are done!}[/tex]
if a triangle is dilated with a scale factor of 3, how is the perimeter of the triangle changed?
A bike store sells scooters at a 54% markup. If the store sells each scooter for 69.30 then what is their markup price?
Answer:
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Miguel can type 42 words in 6 minutes
What is his rate in words per minute?
I NEED HELP ASAP! NEEDING SOMEONE
Answer:
The answer is G
Step-by-step explanation:
Help pls!! What is the location of L?
Answer:
Its kind of blurry but i think its 3,4
Step-by-step explanation:
If X axis and Y axis goes by 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Then it would be 3,4
Answer:
assuming you want the coordinates it is (3,4)
Step-by-step explanation:
can someone please like pretty please help me with this? i seriously need help and my teacher won’t help me with it even after I’ve told him I don’t understand it and it’s about to be due and Emmy whole grade depends on it and I have no idea how to solve it ! I’ll mark you brainleist and give a 5.0 rating, PLEASE HELP !!
Answer:
She made $1230 more on printed shirts than plain shirts in 25 weeks.
Step-by-step explanation:
Hi,
Okay, I have to admit, this is pretty complicated. But, it's not impossible :) First things first, we know that the equation in the table is the number of shirts sold after W number of weeks. We know that we need to, first, find the total number of shirts sold in 25 weeks.
The equation for the plain shirts is 5w -4. Let's start with that.
Plugin 25 for w to find the total number of plain shirts sold after 25 weeks.
5w - 4
5(25) - 4
= 121
She sold 121 plain shirts after 25 weeks. But we're not done yet, we still have to see how much money she made after selling 121 plain shirts. To do this, we have to multiply the total number of plains shirts sold by 15. (we know that each plain short costs $15, that's why we're multiplying it by 121)
When you do this...
121 x 15
You get...
$1815
She got $1815 after 25 weeks just for selling plain shirts.
Now, let's find the total cost of printed shirts after 25 weeks.
The equation for the printed shirts if 8w + 3.
8w + 3
8(25) + 3
= 203
She sold 203 printed shirts in 25 weeks. Let's find the cost. Each printed shirt costs $15 so we need to multiply 203 by 15.
203 x 15
You get...
$3045
She made $3045 by selling printed shirts in 25 weeks.
Now, we have to subtract $3045 by $1815 to find how much more she made. You get...
3045 - 1815
= $1230
She made $1230 more on printed shirts than plain shirts in 25 weeks.
I really hope this helps :)
Deon invests $15,000 in a savings account that pays 3% simple interest. How much will be in the account after 4 years if Deon makes no withdrawals or deposits to the account?
Answer:
$16,800
Step-by-step explanation:
The amount that would be in the account = amount deposited + interest earned on deposit
interest earned on deposit can be determined by determining the simple interest
Simple interest = principal x time x interest rate
principal = the amount deposited = $15,000
Time = the duration of the deposit = 4 years
interest rate = the percentage on deposit that would be earned = 3%
15,000 x 0.03 x 4 = $1,800
The amount that would be in the account = $15,000 + $1800 = $16,800
need help with this please
Answer:
-2/5
Step-by-step explanation:
Exactly the opposite of the sign, opposite of + is negative (-)
i have to find the value of X, it’s in spanish:), and im trying to help a friend:)
answer is x = 10 degrees
Step-by-step explanation:
a right angle is 90 degrees. the angles added are 4x + 3x + 2x = 90.
so 9x = 90
divide by 9 on both sides
x = 10
Which triangle is congruent to ABC?
Here is a right square pyramid. Round answers in this problem to the nearest tenth if necessary. What is the volume of the pyramid? Remember V (square pyramid) = (1/3) Bh, where B = area of base.
Answer:
Step-by-step explanation:
r = radius h = height s = slant height V = volume L = lateral surface area B = base surface area A = total surface area π = pi = 3.14159 √ = square root
SOMEONE PLEASE HELP
If f(x) = x2 is vertically stretched by a factor of 7 to g(x), what is the equation
of g(x)?
State whether or not each of the triangles are similar (use either AA, SSS, or SAS)
Answer:
ΔABC and HGF are similar.
Step-by-step explanation:
In the given triangles ABC and HGF,
If both the triangles are similar,
Their corresponding sides will be proportional.
[tex]\frac{AB}{GH}=\frac{BC}{FG}= \frac{AB}{HF}[/tex]
[tex]\frac{72}{12}=\frac{48}{8}= \frac{84}{14}[/tex]
6 = 6 = 6
True.
Therefore, ΔABC and HGF are similar.
What is the distance between points (-4, 5) and (8, 40) on the coordinate plane?
SOME PLEASE HELP
Someone please help me I’ll give out brainliest please dont answer if you don’t know
Answer:
[tex]3x-1[/tex]
Step-by-step explanation:
[tex]3+2(x-2)+x=3+2x-2.2+x=(2x+x)+(3-4)\\=3x-1[/tex]
Answer:
3x-1
Step-by-step explanation:
trust me i know
How many 1 5 s are in 9?
Answer:
45
Step-by-step explanation:
To know how many 1/5 s are in 9, we will take the ratio of both numbers as shown;
9:1/5
= 9 ÷ 1/5
= 9 * 5/1
= 9 * 5
= 45
Hence there are 45 1/5s in 9
HELP PLEASEE!! What is the value of x in the triangle?
its a hypotenuse triangle with 3√2 on one side and x
answers:
a, 3 √2
b. 3
c. 6
d. 6 √2
e. 2 √2
Answer:
its mostly 6
Step-by-step explanation:
but did they give a answer sheet?
please help, will be greatful :)
what level is this question?
Answer:
2.3cm
Step-by-step explanation:
We can see that it's a right triangle, similar to the one on the bottom left. Because the long side is 4 times longer, the short side is 4 times longer as well. So it's around
0.57cm*4= 2.28cm
Rounding to the 1st decimal place 2.3cm.
Please note, that rounding to 2 decimal places the answer 2.28cm could be inaccurate, e.g. if the real length would have been close to 0.574(9) or 0.565, but all of those options still round to 2.3cm.
Someone plz help me giving brainliest
Answer:
1. ROUND
2. COMMUNITIVE
3. AREA MODEL
4. MIXED NUMBERS
FALSE
FALSE
TRUE
TRUE
Step-by-step explanation:
HOPE THIS HELPS YOU OUT! BE THE FIRST TO COMMENT /FREE ON THESE COMMENTS TO GET A FREE BRAINLIY AWARD! PLZ ALSO CONDISER MARKING ME BRAINLIEST AND THANKS! MY JOURNEY HAS JUST BEGAN ON BRAINLY SO ASK ME IF U HAVE ANY QUESTIONS! -BEACHVIBES23
Why do you think triangles and math are important and bridges you must use proper math terms and provide your reason as wide triangles and bridges are important must contain 3 to 4 sentences. Help
PLS PLS HELP IM A HOPELESS 6th GRADER
Answer:
10
Step-by-step explanation:
You can count from point A to B.
Pls help me i’m on my test and i’m stuck
A car costs $45,000 new but depreciates at a rate of 19% per year. What is the value of the car after four years?
A
$19,371.02
B
$44,744.00
c.
$45,000.43
D.
$90,240.26
Answer:It is 19,371.02
Step-by-step explanation: If You Find out What 19 Percent of the number is then subtract it from your Number Then Repeat This 4 Times
There are 36 dinosaurs pictured in Karmita's book. If 2/3 of them were plant eaters, how many were plant eaters.
A.12 plant-eaters
B.18 plant-eaters
C.24 plant-eaters
D.28 plant-eaters
Which of the following expressions is equivalent to the expression below?
z (2a + b) – (4a + b)
PLEASE HELP
Answer:
-2a
Step-by-step explanation:
FIND THE AREA (LEAVE EXPLANATION)
Answer:
82 mm^2
Step-by-step explanation:
you would have to find the area for 2 squares. The first is 8 x 9, so the area of that would be 72. The second square is 5 x 2, which is ten. Add those together to get 82
Each afternoon at leat 40 people buy coffee from a coffee shop .Write an inequality that represents this situation.Let x represent the number of people who buy coffee in an coffee in an afternoon
Answer:
x ≥ 40
Step-by-step explanation:
Given:
At least people buy coffee = 40
Number of people buy coffee = x
Find:
Inequality
Computation:
Number of people buy coffee ≥ At least people buy coffee
x ≥ 40
Can someone help me please
Answer:Alpaca.
traslaha
Step-by-step explanation:
Answer: c
Step-by-step explanation: