Here is a trapezium.
20 m
Jenny wants to work out the area of
the trapezium.
13 m
She writes:
13 m
N
12 m
area =-
ol
(20+30)(13)
+5 m
+5 m
=(10+30)(13)
= 40x13
= 520 m²
What two mistakes did Jenny make in her method?

Answers

Answer 1

Answer:

Jenny wants to work out the area of

the trapezium.

13 m

She writes:

13 m

N

12 m

area =-

Step-by-step explanation:


Related Questions

I need help with this

Answers

Answer:

Slope: Greater for Function A

Y-intercept: Same for both

Step-by-step explanation:

Slope: The easier way would be to just graph where we get a slope of -6 for Function A and a slope of -4 for Function B. Making Function A to have a greater slope

Y-intercept: Easy, we know x=0 in the y-intercept. They both have (0,3) where x=0 meaning both their intercepts are equal

Hope this helps :)

Answer:

The slope is greater for function A and the y-intercepts are the same.

Step-by-step explanation:

The slope for function A :

= (3-0) / (0 - (0.5)

= 3 / -0.5

= -6.

The y-intercept occurs when x = 0 so:

So the y-intercept is at (0,3)

The slope for function B :

= (3-7) / (0 - (-1)

= -4.

The y-intercept occurs when x = 0 so:

So the y-intercept is at (0,3)

Please help me due in 2 mins!!! Use the picture below to help you answer the question!!!

Answers

Answer: 2952 is what they both equal

Step-by-step explanation: 2*(6)4

Find the EXACT distance between the two points.

(5,−4) and (3,5)

Answers

Answer:

  √85

Step-by-step explanation:

The distance formula is used for this purpose.

  d = √((x2 -x1)² +(y2 -y1)²)

  d = √((3 -5)² +(5 -(-4))²) = √((-2)² +9²) = √(4 +81)

  d = √85 . . . . the distance between the two points

Solve the following system: y = x 3 2x y = 9 (2, 5) (5, 2) (â’2, 5) (2, â’5).

Answers

The required solution of the equation is (2,5). The correct option is A. (2,5).

Given equations,

[tex]y=x+3.....(1)\\2x+y=9......(2)[/tex]

How to solve a system of equations?

putting the value of y from eq. 1 in eq. 2 we get,

[tex]2x+x+3=9\\3x=9-3\\3x=6\\x=2[/tex]

putting the value of x=2 in eq. 1 we get,

[tex]y=2+3\\y=5[/tex]

Hence, the required solution of the equation is (2,5).

For more details on solving the equation follow the link:

https://brainly.com/question/11897796

120% of what number is
54?

Answers

Answer:

45

Step-by-step explanation:

Karen's mother gets a restaurant bill for $25 she has a coupon for 15% off after the discount is applied she adds 20% as a tip what is the total after the discount and tax

Answers

$25.50

step by step explanation: 15% means u can multiply it by .85

so .85x25
= $21.25

the next step is to find the tip

to do this you do

$21.25+ (21.25x .2)

final: $25.50

hope this helps

Answer:

$25.50

Step-by-step explanation:

with a 15% off coupon she is paying 85% of the $25 bill, which is:

.85 x 25 = 21.25

if she adds a 20% tip on 21.25 then we can do the following:

1.2 x 21.25 to get the total after the discount and with tax:

$25.50

4. Harry is going to send some flowers to his wife. Summerfield Florist charges $1 per rose, plus
$39 for the vase. Grayson’s Flowers, in contrast, charges $3 per rose and $15 for the vase. If
Harry orders the bouquet with a certain number of roses, the cost will be the same with either
flower shop. How many roses would there be? What would the total cost be?

Answers

The number of roses purchased will be; 12 roses

The total cost of the bouquet is; $51

Let number of roses be x

For Summerfield florists;

At $1 per rose and $39 for the vase, cost is;

C = x + 39

For grayson's flowers;

At $3 per rose and $15 for the vase,total cost is;

C = 3x + 15

We are told when he orders a certain number of roses, the cost will be the same with each flower shop.

Thus;

x + 39 = 3x + 15

3x - x = 39 - 15

2x = 24

x = 24/2

x = 12

Total cost is;

C = 12 + 39

C = $51

Read more about cost functions at; https://brainly.com/question/19300938

Complete the given ordered pairs for the equation.
y = 2x + 1
(5, )
(0, )
(-2, )

Answers

Answer:

(5,11)

(0,1)

(-2,-3)

Step-by-step explanation:

y=2(5)+1

y=10+1

y=11

so... (5,11)

y=2(0)+1

y=0+1

y=1

so... (0,1)

y=2(-2)+1

y=-4+1

y=-3

so... (-2,-3)

What is the domain of the following function?

Answers

Answer:

third option (-3,3,5,9)

Step-by-step explanation:

domain is the starting point of the set (x coordinate )

Suppose that $2000 is loaned at a rate of 12%, compounded semiannually. Assuming that no payments are made, find the amount owed after 3 years
Do not round any intermediate computations, and round your answer to the nearest cent.

Answers

The total amount owed after three years is $2,837.04.

The formula that can be used to determine the total amount owed after 3 years is:

FV = A(1 + r/m)^nm

FV = Future value of debt A = amount borrowed  R = interest rate = 12/2 = 6% m = number of compounding = 2  N = number of years = 3

$2000 x (1.06)^6 = $2,837.04

To learn more about future value, please check: https://brainly.com/question/18760477



Solve 7 ax + 8 ax = 9 ax + 6 for x. Assume a + 0.

Answers

Your answer would be B (1/a)

Eli is now one quarter of his father’s age. In 5 years’ time his age will be one third of
his father’s age. How old is Eli now?

Answers

Answer:

10

Step-by-step explanation:

This is because 10×4=40

10+5=15

40+5=45

45/15=3

Answer:

Step-by-step explanation:

Let E and F represent Eli and his Father's current ages.

We are told that E = (1/4)F.  ["Eli is now one quarter of his father’s age"]

But in 5 years, that will be:

(E+5) = (1/3)(F+5)       ["In 5 years’ time his age will be one third of

his father’s age"]

-------------

We have two equations and two unknowns.  Find a way to eliminate one of the two variables and then solve for the remaining variable.

E = (1/4)F

(E+5) = (1/3)(F+5)

It seems to me the easiest would be to use the first equation's definition of E [=(1/4)F] in the second equation:

(E+5) = (1/3)(F+5)

((1/4)F+5) = (1/3)(F+5)

(1/4)F - (1/3)F = (1/3)*5 - 5

F - (4/3)F = (4/3)*5 - 20

-(1/3)F = (20/3) - (60/3)

-(1/3)F = (-40/3)

F = (120/3)

F = 40 years

E = 10 years  (based on E = (1/4)F)

====

In five years:  F is 45 and E is 15, which would make Eli  1/3 of his father's age in 5 years.

Mathematics 13 don’t understand

Answers

Answer:

  1/6^3

Step-by-step explanation:

The applicable rules of exponents are ...

  a^-b = 1/a^b

  (a^b)(a^c) = a^(b+c)

__

Your expression can be simplified as follows:

  [tex]\dfrac{6^{-5}}{6^{-2}}=\dfrac{1}{(6^{-2})(6^5)}=\dfrac{1}{6^{-2+5}}=\boxed{\dfrac{1}{6^3}}[/tex]

_____

Additional comment

If you think of an exponent as signifying repeated multiplication, the rules of exponents may be easier to remember. The exponent tells you how many times the base is a factor in the product.

Consider multiplication:

  [tex](x\cdot x\cdot x)\cdot(x\cdot x)=x^3\cdot x^2=x^{3+2}=x^5\\\\(x\cdot x\cdot x)\cdot(x\cdot x\cdot x)=(x^3)^2=x^{3\cdot2}=x^6[/tex]

Consider division:

  [tex]\dfrac{x\cdot x\cdot x}{x\cdot x}=x\quad\Longleftrightarrow\quad\dfrac{x^3}{x^2}=x^{3-2}=x^1\\\\\dfrac{x\cdot x}{x\cdot x\cdot x}=\dfrac{1}{x}\quad\Longleftrightarrow\quad\dfrac{x^2}{x^3}=x^{2-3}=x^{-1}[/tex]

This may help you see that a positive exponent in the denominator is equivalent to a negative exponent in the numerator (and vice versa).

Abigail’s family was going on vacation. They decided to rent a jet ski. When they went to rent the jet ski, they had to pay a $40 deposit and then $35 an hour.
Which equation could be used to calculate how many hours they rented the jet ski if they ended up paying a total of $145.

A. 145 + 35x = 40

B. 35x = 145 + 40

C. 35x - 40 = 145

D. 40 + 35x = 145

Answers

Answer:

The Answer To This Question Is D.

Step-by-step explanation:

So they had to pay 40 and then 35 an hour = 40 + 35x = 145

Hope this helps! Please Mark Brainliest!

how i can answer questions

Answers

Answer:yes

Step-by-step explanation:press answerr

Someone help pls and explain it if you can pls

Answers

the answer is: y = 3x + 1

P/s: i can't see the picture clearly but the answer is not A or C

ok done. Thank to me :>

The number line shows the graph of an inequality:

A number line is shown from negative 5 to positive 5 with increments of 0.5. All the whole numbers are labeled on the number line. An empty circle is shown on the seventh mark to the left of 0. The region to the left of the empty circle is shaded.
Which statement explains whether −4.5 can be a value in the shaded region? (5 points)

No, it cannot because −4.5 lies to the left of −3.5.

No, it cannot because −4.5 lies to the right of −3.5.

Yes, it can, because −4.5 lies to the right of −3.5.

Yes, it can, because −4.5 lies to the left of −3.5.

If you get the best answer I will mark you as brinitlylist
if 2 people answer

Answers

Answer:

Yes, it can, because -4.5 lies to the left of -3.5

Step-by-step explanation:

we know that

The solution of the inequality is equal to the interval------> (-∞,-3.5)

All real numbers less than -3.5

x<-3.5

Substitute in the inequality

-4.5<-3.5 ------> is true

therefore

The number -4.5 is a value in the shaded region, because lies to the left of -3.5

[tex]\sf -9(8-2h)[/tex]

Answers

Answer:

[tex] - 9(8 - 2h) \\ by \: distributive \: property \\ = - 9 \times 8 - ( - 9) \times ( - 2h) \\ = - 72 - 18h[/tex]

Answer:

[tex]-72+18h[/tex]

Step-by-step explanation:

[tex]-9(8-2h)[/tex]

[tex]\mathrm{Multiply}-9\:\mathrm{to\:the\:values\:in\:the\:parenthesis}[/tex]

[tex]-9(8-2h)[/tex]

[tex]-9\cdot8=-72[/tex]

[tex]-9\cdot-2=18[/tex]

[tex]=-72+18h[/tex]

A computer and printer cost a total of $930 . The cost of the computer is two times the cost of the printer. Find the cost of each item.

Answers

Answer:

Computer: $620

Printer: $310

Step-by-step explanation:

c + p = 930

c = 2p

c = cost of the computer

p = cost of the printer

replacing the second eq. in the first eq.

2p + p = 930

3p = 930

p = 930/3

p = 310

from the second eq.

c = 2p

c = 2*310

c = 620

Check

from the first eq.

620 + 310 = 930

Pls answer these two questions

Answers

Answer:8 and 22

Step-by-step explanatio

Which equation shows the correct factors for the quadratic equation 24x2 - 15 = 54x?
3x (8x + 5) = 54x
3 (2x + 5) (4x - 1) = 0
3 (8x2 - 5) = 54x
3(2x - 5) (4x + 1) = 0
3(2x - 5)(4x - 3) = 0​

Answers

The second equation is correct answer

Answer:24x^2_54x_15=0

(12X +3 ) ( 2X _5 ) . = O

12x +3 =0

X= - 1/4

or

2x _ 5=0

X = 5/ 2

How was
Figure A transformed
to become Figure A"?
A"
}
1.[
?
]
2.[
1
Dilate
Reflect

Answers

Answer:

reflect

Step-by-step explanation:

dilate means bigger or smaller than the original.

With two of the angles fixed on ADEF, what do you notice about the shape of ADEF when compared with ABC?​

Answers

Answer:

Step-by-step explanation:

u notice that the letters are different from each other

Ayo. Bestie. Had enough yet?

Answers

Answer:

the answer is e

Step-by-step explanation:

I WILL GIVE BRAINLYEST IF YOU GIVE CORRECT ANSWER Solve for x:


A.
B.
C.
D.

Answers

Answer:

C

Step-by-step explanation:

The answer is C thank you

I’m desperate at this point

Answers

1st:
Yes functuon
D:{-4,0,1}
R:{-6,4,8}

2nd:
No function
D:{-3,2,18}
R:{6,9}

3rd:
Yes function
D:{9,13,25}
R:{7,8}

please help if you can​

Answers

Answer:

Identity property.

Step-by-step explanation:

Any number added to 0 keeps its original value, keeping its identity.

when we simplify (ab + 3c)^2 we get

Answers

Answer:

a^2b^2+6abx+9c^2

Step-by-step explanation:

(a + b)2 = a2 + 2ab + b2

(ab+3c)^2=(ab)^2+2ab*3c+(3c)^2

Hey there!

(ab + 3c)^2

= (ab + 3c)(ab + 3c)

DISTRIBUTE

= ab(ab) + ab(3c) + 3c(ab) + 3c(3c)

= a^2 b^2 + 3abc + 3abc + 9c^2

COMBINE the LIKE TERMS

= a^2 b^2 + 6abc + 9c^2

Therefore, your answer is:

a^2 b^2 + 6abc + 9c^2

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

14. Write an equation for the line parallel to the given line that contains C.
C(3,8); y = - 4x + 1

Answers

Answer:

The answer should be y= -4x + 20.

what is a2? ai + 1=ai +1 a0=0 ?

Answers

If a₀ = 0, and [tex]a_{i + 1} = a_i + 1[/tex], then

a₁ = a₀ + 1 = 0 + 1   ⇒   a₁ = 1

and

a₂ = a₁ + 1 = 1 + 1   ⇒   a₂ = 2

i hope it helped you :P

it was easyy!!!

Other Questions
A floor is 40 m long and 15 m broad. It is covered with tiles, each measuring 60 cm by 50 cm. Find the number of tiles required to cover the floor. What did the increase in production of farm goods(crops) lead to? Which sentence has the same meaning as the sentences above? The _____ is the difference between the highest and lowest points of a mapped area.contour intervalcontour linereliefmean sea level Find the slope of the line containing the points (-3, 8) and (-1, 0).Select one:a.zero slopeb.-4c. -1/4d.-3 write the L.C.M of 5,8 How does poverty and the stress of poverty affect unborn babies during the general election which happens last party conversation or popular vote national debate or party primary Which term is defined as the distance from the center of a circle to any point on the circle? A. Directrix B. Diameter C. Circumference D. Radius Hi, I need help. These are one-step equations. How did Jefferson views differ from the views of Federalist Party Whats clues indicate that a chemical reaction has occurred? Frequent earthquakes in an area may indicate SImplify: (2m)^5Please help if possible :) Logan walked 2 1/2 miles on Monday and she walked6 miles. How far did she walk on Tuesday? Which neutral atom is isoelectronic with N-3? The clouds of Venus consist mainly of ______. Group of answer choices carbon monoxide droplets of water vapor hydrogen and helium droplets of sulfuric acid gaseous nitrogen What was the grographic relationship between Soviet satellite and the iron curtain The movement of water across cellular membranes from a hypotonic to hypertonic environments through aquaporins, which are channel proteins, can be defined as bothA: simple diffusion and active transport.B: active transport and facilitated diffusion.C: osmosis and facilitated diffusion.D: endocytosis and active transport. 38. -() () () () Answer this please ONLY IF YOU KNOWWW