Beth enlarged the triangle below by a scale of 5.

A triangle with a base of 4 centimeters and height of 3.5 centimeters.


She found the area of the enlarged triangle. Her work is shown below.

One-half (4) (3.5) (5) = 35 centimeters squared

What was Beth’s error?

Answers

Answer 1

Answer: She should have multiply each of the sides the scale value before multiplying to find the area.

Step-by-step explanation:

They are two sides to the triangle which is the base and the height  and each side have a different length so you will have to first multiply each side length by the scale value to find the new length of the enlarged triangle.

base:  4 *5 = 20

height :  3.5 * 5 = 17.5

Now since the base is 20 cm and the height is 17.5 cm you will use the area of a triangle formula to solve for the area.

A = 1/2* b * h

A = 1/2 * 20 * 17.5

A =  10* 17.5

A = 175  

or she could have multiply 35 which is the number he obtained by another 5 to find the area.

Answer 2

Answer:

c i think not sure sorry

Step-by-step explanation:


Related Questions

a bee flies at 12 feet per second directly to a flowerbed from its hive. The bee stays at the flowerbed for 14 minutes, and then flies directly back to the hive at 8 feet per second. It is away frim the hive for a total of 16 minutes. what equation can can you use to find the distance of the flowerbed from the hive? How far is the flowerbed from the hive?

Answers

Answer:

(x/12 + 840 + x/8) = 960

576 feets

Step-by-step explanation:

Given that :

Speed to flower bed = 12 ft/s

Speed back to hive = 8 ft/s

Time spent at flower bed = 14 minutes = 14*60.= 840

Total time = 16 mins = (16 * 60) = 960

Let distance between bee hive and flower bed = x

Time taken to flower bed = x / 12

Time taken back to hive = x /8

(x/12 + 840 + x/8) = 960 - - equation

L.C.M of 12 and 8 = 24

(2x + 20160 + 3x)/ 24 = 960

(2x + 20160 + 3x) = 23040

5x = 23040 - 20160

5x = 2880

x = 2880 / 5

x = 576

Distance between flowerbed and hive = 576 feets

solve for x 3(-5x+4)+5x-1=-39

Answers

Answer:

2

Step-by-step explanation:

x3(−5x+4)+5x−1=−39

−5x4+4x3+5x−1=−39

Step 1: Subtract -39 from both sides.

−5x4+4x3+5x−1−(−39)=−39−(−39)

−5x4+4x3+5x+38=0

Step 2: Factor left side of equation.

(−x+2)(5x3+6x2+12x+19)=0

Step 3: Set factors equal to 0.

−x+2=0 or 5x3+6x2+12x+19=0

x=2 or x=−1.409699

write an equation that is perpendicularl to 7/8x+1

Answers

Answer:

-8/7x-1

Step-by-step explanation:

perpendicular equations have opposite signs and are reciprocal.

Solve 56 - 10x>20 + 8x.
O A. x>-2
B. X<-2
C. x >2
D. x<2

Answers

Answer:

x<2

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Given

56 - 10x > 20 + 8x ( add 10x to both sides )

56 > 20 + 18x ( subtract 20 from both sides )

36 > 18x ( divide both sides by 18 )

2 > x , thus

x < 2 → D

what is the percintage change of 36 to 24

Answers

Answer:

if its 24 by 36 then its 150%. If it was 36 by 24 then it would be 66.6

Step-by-step explanation:

Jordan is using his birthday money to buy baseball cards. Danny's Downtown Shop sells boxes of 80 cards for $23.20. The General Store sells boxes of 120 cards for $28.80. Which store offers the better deal?

Answers

Answer:

I believe that the general store offers a better deal.

Answer:

I believe that the general store offers a better deal

Step-by-step explanation:

Write 2x+y=17 in slope-intercept form

Answers

Answer:

y=-2x+17

Step-by-step explanation:

Can someone help me with this question

Answers

Answer:

It’s c my fren its 40 because you are doing the math as in adding and multiplying..... I tried to help lol tell me if I’m wrong.

Step-by-step explanation:

There is a contest at school where students guess how many dimes are in a jar. The person whose guess is closest to the actual value wins the jar. Jeffrey guessed 470 dimes. The actual value is 510. What is Jeffrey's percent error?

Answers

Answer:

to go yes back

Step-by-step explanation:

Just in case you can't see what is says it says Which point has coordinates (1,-5)
A B C D please help me

Answers

Answer:

D

Step-by-step explanation:

the x value = 1 so move to the right 1 mark on the graph and since y = -5 you move down 5 marks on the graph and you get you answer

hope this helps!

plz mark me brainliest if this helped!

have a great day!

The cost of tickets is $36 for three students an $72 for six students. What’s the rate and change?

Answers

Answer:The cost of a ticket is $12 per student

Step-by-step explanation:

36/3=$12 per students

$72/6=$12 per student

Can someone help me with 13,14,15 and 16 please

Answers

Answer: -3/5, 18/32, -10/11, and horizontal.

Step-by-step explanation: Remember the equation for slope? Δy (the change in y), over Δx (the change in x). In other words, rise over run. To solve for Δ,  you'd have to subtract the second output (y²) from the first (y¹). There are really no rules as to which has to be minuend and the subtrahend, so I chose to subtract (-1,6) from (4,3) for the first problem.

y¹-y²       Δy           3-6            -3

------  or  ----   so   -------   =    -----    The slope is represented by -3/5x    

x¹-x²       Δx           4-(-1)           5

__________________________________________________________

For the second, substitute the values again (make sure you keep the xs and ys together and in the right order, otherwise your answer will be incorrect). Remember that subtracting a negative number is basically just adding a positive number. That's why the slope is 18/32 and not 4/26.

 11-(-7)       18          

---------  = -------  

 29-(-3)     32      

___________________________________________________________

For number three, they give you a point, then tell you the y-intercept. With that in mind, also know the second point is (0,17), because the x value at the y-intercept is always 0.

7-17        -10

------ =   -------   The slope is -10/11x

11-0          11

___________________________________________________________

4-4            0

------   =  --------  

6-(-9)        15

Because there is no Δy, but there is Δx, we know that the line for y will be straight and shows no change- it will always be at 4. That said, the line will be horizontal.

I hope this helps. I know this is very confusing at first, but with practice, you'll eventually get the hang of it. I've tried to explain the rules to the best of my ability- let me know if there's anything you don't understand or need more help with.

Sincerely,

Lacia :))

HELPPPPP PLZ AND THANK U








Answers

Answer:

0.6

Step-by-step explanation:

multiply all of the numbers

5/4 x 4/3 x 3/5
= 1cm

The answer is 1cm

Hope this helps!

9(3x - 5) = -9(-5x - 3)
how many solutions do you get when you solve ?

Answers

Answer:

one solution

Step-by-step explanation:

Given

9(3x - 5) = - 9(- 5x - 3) ← distribute parenthesis on both sides )

27x - 45 = 45x + 27 ( subtract 45x from both sides )

- 18x - 45 = 27 ( add 45 to both sides )

- 18x = 72 ( divide both sides by - 18 )

x = - 4

A survey asked students whether they would like a drama club, a step team, both clubs, or neither club. The results are below:
1. 34 students like a drama club
2. 27 students like step team
3. 14 students like both
4. 13 students like neither

Answers

Hi, you've asked an incomplete question. Here are the remaining questions:

a) Describe what each region in the Venn diagram represents.

Region I: In drama club, not in step team.

Region II: In both clubs.

Region III: In step team not in drama.

Region IV: Not in either club.

b) How many students were in only one of the two clubs?

c) How many students were in the drama club or in the step team?

d) How many students were surveyed?

Attached is the Venn diagram depicting the regions.

Explanation:

b) By adding the number of students that like drama club and those that like step club we can derive the answer:  34 + 27 = 61.

c) By adding 34 + 27 + those that like both (14) = 75.

d) The total number of students surveyed is gotten by summing any number in attached the diagram: 34 + 27 + 14 + 13 = 88.

Find the slope of the line that passes through the given points.
(-1, 4) and (-3, 8)

Answers

Answer:

-2

Step-by-step explanation:

4-8 = -4

-1 - -3 = 2

-4/2= -2

WHAT DO I DO WHEN I FAILED A ALGEBRA TEST

Answers

Answer:

Restudy and try to take it again.

Step-by-step explanation:

Try watching math videos and do extra studying on the areas you missed on your last attempt.

Answer:

Talk with your teacher

Step-by-step explanation:

 I recommend talking with your teacher and asking if you can retest or do extra credit to get your grade back up.

 Make sure you study and get really good grades on the rest of your assignments / next test to keep a passing grade.

4. determine whether the relation is a function(
(1, -4), (2, 1), (3, 4), (3, 3), (4, 2)
B. yes
C.no

Answers

Answer:

No, bacause each X (first value), need to have just once Y value (second one). Here you have two values for 3 (4 and 4)

15. Write the slope-intercept form of the line described in the following:
Parallel to 3x + y = 5 and passing through (2,3)

Answers

Answer:

2x

Step-by-step explanation:

3x + y = 5

          = 5 - 3x

          = 2x

         

What is 100 times 100

Answers

Answer:

hii

Step-by-step explanation:

10,000

Answer:

the anwser would be 10000

Step-by-step explanation:

lol

Given the points (2, k) and (0, -6), for which values of k would the distance between the points be square root of 5?

Answers

Answer:

k = -5

k = -7

Step-by-step explanation:

*look at the picture*

Maya purchased a prepaid phone card for$25. Long distance calls cost 9cent a minute using this card. Maya used her card only once to make a long distance call. If the remaining credit on her card is 24.01, how many minutes did her call last?

Answers

Answer:

Her call lasted for 1 minutes.

Step-by-step explanation:

She bought a prepaid card ($25)

0.9 times 11 = 0.99

25 - 0.99 = 24.01

Help ASAP Please! Thanks in advanced :)

Answers

Answer:

x = 17

Step-by-step explanation:

Since it shows that the diagram is corresponding angles, we can set them equal to each other.

8x + 20 = 11x - 31

-3x = -51

x = 17 degrees

The greatest number of bags ? can fill is ?

bags because the GCF of 34 and 51 is ?

. Each bag can have ?

blueberry and ?

raspberry scones.

Answers

Im so sorry. Your question is very poorly formatted I do not understand what you are saying.

The GCF of 34 and 51 is 17

Consider the complex number z = 27i. What are the characteristics of the cube roots of z?

Use the drop down menus to complete each sentence.

The cube roots are located on a circle with center at the origin and radius of
.

The cube roots have arguments which differ by
Pi over 3.

Answers

Answer:

3 and 2

Step-by-step explanation:

The cube roots are located on a circle with a center at the origin and a radius of 3. The cube roots have arguments that differ by 2 Pi over 3.

What is the complex number?

A complex number is one that has both a real and an imaginary component, both of which are preceded by the letter I which stands for the square root of -1.

The given complex number as;

z = 27i

The radius of the cube root is found as;

r=∛x

r=∛27

r=3

The cube roots are located on a circle with a center at the origin and a radius of 3 units.

The argument of a complex number,z=a+ib is;

Θ = tan⁻¹(b/a)

The argument of a complex number z=0+27i

Θ = tan⁻¹(27/0)

Θ = π/2

The cube roots have arguments that differ by 2 Pi over 3.

Hence, the correct answer for the drop-down menu will be 3 and 2.

To learn more about the complex number, refer to the link;

https://brainly.com/question/10251853

#SPJ2

d. 15 times the sum of 14 and 6
expression and the value of the expression

Answers

The answer is to the question is 134

can someone help me with this please
The midpoint of AB with line above it is M(-2, 1). If the coordinates of A are (1, -2) what are the coordinates of B?

Answers

The coordinates of B are (-5, 4)

4(5c+3) and 9c+7 is it equivilent

Answers

Answer:

why are you cheating

Step-by-step explanation:

whats your reputation

Answer:

Step-by-step explanation:

Yes

Wesley and Lincoln went fishing

Answers

Answer:

I this a question of some sort?

please help me :////

Answers

Answer:

34

Step-by-step explanation:

Answer:

2i

Step-by-step explanation:

if the root is at -2i it's other root is the conjugate at 2i

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