PLEASE HELP. i have been working on this for an hour!!!

What is the distance across the lake?

PLEASE HELP. I Have Been Working On This For An Hour!!!What Is The Distance Across The Lake?

Answers

Answer 1

Answer:

AB = 133m

Step-by-step explanation:

You can notice the ratio of AE to DE is the same as the ratio from BE to CE(3.5). We can also say angle AEB is congruent to angle DEC because they are vertical angles. Now, because of SAS similarity, you can say triangle AEB and DEC are similar. We can set up these proportions from the definition of similar triangles:

DE / AE = BE / CE = DC / AB

And we can plug in the values we have:

42 / 147 = 36 / 126 = 38 / AB

2 / 7 = 2 / 7 = 38 / AB

We can cross-multiply to get:

2AB = 7 * 38

2AB = 266

AB = 133 m


Related Questions

PLEASE HELP GIVING 70 POINTS NEED THIS BEFORE 2:30

Answers

Answer:

(-4,2)

Step-by-step explanation:

A reflection means you flip the graph up, then the point goes to (-4,2).

If this helps please mark as brainiest would really appreciate it

Answer:

4,2

Step-by-step explanation:

need help to pass please

Answers

Answer:

x=1

Step-by-step explanation:

a(a+b)=c(c+d)

4(6x+4)=5(3x+5)

24x+16=15x+25

9x=9

x=1

i just found out i got a 361 on my math test and i need a 400 to pass lol
so um can anyone tell me my percentage
did i get a 60 or something

Answers

Answer:

361 out of 400 is 90.25%

Step-by-step explanation:

What does the mean, median, mode mean?​

Answers

Mean: average of the numbers median: middle of the numbers mode: which number appears the most

Step-by-step explanation:

Mean= add all of the terms together and divide by the amount of terms

median= put all the terms in order and the middle number is the median

mode= the value the appears the most frequently

write an absolute value equation that has one solution of 17

Answers

Answer:

|x| - 17 = 0

Step-by-step explanation:

2 8 −10−15÷3=2, start superscript, 8, end superscript, minus, 10, minus, 15, divided by, 3, equals

Answers

Answer:

241

Step-by-step explanation:

Given the equation to evaluate :

2^8 −10−15÷3

2^8 = 256

256 - 10 - 15 ÷ 3

From BODMAS principle, we evaluate the divison before subtraction :

-15 ÷ 3 = - 5

256 - 10 -5

256 - 15

= 241

on a venn diagram shade the region
a'n(bnc)​

Answers

Answer:

See the three attached images.

Step-by-step explanation:

image1 shows the intersection of b and c:  [tex]b \cap c[/tex]. (green "football")

image2 shows the complement of a (outside a):  [tex]a'[/tex]  (yellow)

image3 shows the intersection of those sets:  [tex]a'\cap (b\cap c)[/tex] (green "football with a bite out of it")   :-)

Ariel uses 7/8 of a cup of vinegar in her salad dressing recipe. How much vinegar would Ariel use to make 1/2 of a recipe? show calculation and final answer.

Answers

I’m pretty sure it’s 7/16 Goodluck! :)

PLEASE HELP I NEED THIS ASAP

Answers

(A)

Step-by-step explanation:

Multiply both sides by (x + 3)(x - 3)

4(x + 3) + 2 = (x- 3)

4x + 12 + 2 = x - 3

3x = - 17

or

x = -17/3

Find the area of this circle. Use 3 for .
A = 7r2
18 in
[?] in2

Answers

Answer:

Area of a circle = πr^2 if pi here = 3

then (3 × 81) in^2 = 243 in^2

Hope it helps

Answer:

The area of circle is 254.34 in².

Step-by-step explanation:

Given :

[tex]\small\purple\bull[/tex] Diameter of circle = 18 in

To Find :

[tex]\small\purple\bull[/tex] Radius of circle [tex]\small\purple\bull[/tex] Area of circle

Using Formulas :

[tex]\star{\small{\underline{\boxed{\sf{\pink{R = \dfrac{D}{2}}}}}}}[/tex]

[tex]\blue\star[/tex] R = radius [tex]\blue\star[/tex] D = diameter

[tex]\star{\small{\underline{\boxed{\sf{\pink{Area_{(Circle)} = \pi{r}^{2} }}}}}}[/tex]

[tex]\blue\star[/tex] π = 3.14 [tex]\blue\star[/tex] r = radius

Solution :

Here we have given that diameter of circle is 18 in. So, finding the radius of circle :

[tex]\implies{\sf{Radius = \dfrac{D}{2}}}[/tex]

[tex]\implies{\sf{Radius = \dfrac{18}{2}}}[/tex]

[tex]\implies{\sf{Radius = \cancel{\dfrac{18}{2}}}}[/tex]

[tex]\implies{\sf{Radius = 9 \: in}}[/tex]

[tex]\star{\underline{\boxed{\sf{\red{Radius = 9 \: in}}}}}[/tex]

Hence, the radius of circle is 9 in.

[tex]\rule{200}2[/tex]

Now, we know the radius of circle is 9 in. So, finding the area of circle by substituting the values in the formula :

[tex]\implies{\sf{Area_{(Circle)} = \pi{r}^{2}}}[/tex]

[tex]\implies{\sf{Area_{(Circle)} = 3.14\times {(9)}^{2}}}[/tex]

[tex]\implies{\sf{Area_{(Circle)} = 3.14\times {(9 \times 9)}}}[/tex]

[tex]\implies{\sf{Area_{(Circle)} = 3.14\times (81)}}[/tex]

[tex]\implies{\sf{Area_{(Circle)} = \dfrac{314}{100} \times 81}}[/tex]

[tex]\implies{\sf{Area_{(Circle)} = \dfrac{314 \times 81}{100}}}[/tex]

[tex]\implies{\sf{Area_{(Circle)} = \dfrac{25434}{100}}}[/tex]

[tex]\implies{\sf{Area_{(Circle)} = 254.34 \: {in}^{2} }}[/tex]

[tex]{\star{\underline{\boxed{\sf{\red{Area_{(Circle)} = 254.34 \: {in}^{2}}}}}}}[/tex]

Hence, the area of circle is 254.34 in².

[tex]\rule{300}{1.5}[/tex]

15. What is the height of a triangular pyramid that has a volume of 512 cubic feet, a base length of 24 feet, and a base height of 8 feet? feet (do not enter label) Round to the nearest TENTH if necessary. please do not send website​

Answers

Answer:

16 ft

Step-by-step explanation:

height of pyramid = (3×512)/(½×24×8)

= 1536/96

= 16 ft

At the beginning of the school year, there
were 1200 students enrolled at Elmwood
Middle School. At the end of the year, there
were 1128 students. Find the percent of
change in enrollment.

Answers

Answer: 6% decrease

Step-by-step explanation:

Answer:

6% decrease

Step-by-step explanation:

Given that,

Initial number of students = 1200

At the end of the year there were 1128 students

We need to find the  percent of  change in enrollment.

Change in enrollment = 1200 - 1128 = 72

The percentage of change is :

[tex]\%=\dfrac{\text{change in students}}{\text{initial students}}\times100\\\\\%=\dfrac{72}{1200}\times 100\\\\=6\%[/tex]

So, there is a decrease of 6% in number of students.

2a+b if a=2 b=4 explain it

Answers

answer: 8

2(2) + 4

4 + 4 = 8

you substitute 2 for a and 4 for b. then just solve normally:)

Which best explains how to find the volume of a prism?


Find the height of the base and multiply it by the length.

Find the width of the base and multiply it by the height.

Find the area of the base and multiply it by the height.

Find the area of the lateral sides and multiply it by the height of the base.

Answers

I have read this all and see it but I think it’s the 3rd one but yea that’s one I would recommend

Answer:

Find the area of the base and multiply it by the height

Step-by-step explanation:

Volume Rectangular Prism = L x W x H

L x W = Area base

So it is Area of base x height

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K


In the figure below, m ZABD=70°, and m 2 2 is four times m 2 1. Find m2 1.
А
mZ1 = 33
]
B
D
Recheck
Try one last time
2021

Answers

Answer:

angle m1 = 14 degrees

Step-by-step explanation:

angle ABD = 70 deg

angle m1 + angle m2 = 70 deg

angle m2 = 4 * angle m1

angle m1 + (4 * angle m1) = 70 deg

5 * angle m1 = 70 deg

angle m1 = 14 deg

Write [tex]cot^{2} x (1+tan^{2} x)[/tex] Then simplify the expression so no quotients appear

Answers

Step-by-step explanation:

[tex] { \cot^{2}x}(1 + \tan^{2}x) \\ = \frac{1}{ \tan^{2}x} (1 + \tan^{2}x)[/tex]

[tex] = \frac{1}{ \tan^{2}x } + 1[/tex]

[tex] = \frac{ \cos^{2} x }{ \sin^{2}x } + 1 = \frac{ \cos^{2}x + \sin^{2}x}{ \sin^{2} x } [/tex]

[tex] = \frac{1}{ \sin^{2}x } = \csc^{2} x[/tex]

What triangles can you make out of a rhombus

Answers

Answer:

Congruent Triangles: Remember that in a parallelogram, the diagonals split the parallelogram into two pairs of congruent triangles? Well, in a rhombus, the diagonals split the rhombus into four congruent triangles. Yes, that's right, all four of those little triangles are congruent.

Hope it helps ya mate! please give me brainliest!.ت︎ ت︎

The campus cafeteria gives a 20% discount to students.If the group's dinner regulary cost $36 , how much would a group of students acutally pay for dinner?

Answers

Answer:

If they buy the dinner at $36 with 20% discount, they will pay  28.8 dollars.

hii! please help asap. i’ll give brainliest

Answers

Answer:

4

Step-by-step explanation:

The numbers you have are 2, 2, 3, 4, 8, 8, 8

First, cross out 2 on the very left and 8 on the very right.

Then you are left with 2, 3, 4, 8, 8, Then cross out the 2 on the left and the 8 on the right, and you are left with 3, 4, 8. Cross out the 3 and 8, and you are left with the median, 4.

If this helps, make sure to rate it 5 stars and give me brainliest and a thanks!

What number divided by −3 gives 12 as the result?

Answers

Answer:

-36

Step-by-step explanation:

-3 ×12=--36

Solution,
Let x is the results
From question we know
For x if divides by -3 we can get 12 so
So x/-3=12
Or. x= 12 x -3
So x= -36 is answer
Conclusion : = -36 number divided by -3 gives 12 as the results.

If sine > 0 and tane < 0 then:

Answers

Answer:

its A

Step-by-step explanation:

What was Ahmed's first error? In Step 1, the radius should be found by multiplying the diameter by 2. In Step 2, the formula 2 pi r should be used to find the area of the circle. In Step 3, the resulting area should be in terms of pi. In Step 4, the units of the resulting volume should be Centimeters squared.

Answers

Answer:

Step 2

Step-by-step explanation:

To find the area you do pi x r^2.

He did 2 x pi x r which finds the circumference,

A rectangular portrait is 5 feet wide and 6 feet high. It costs $4.00 per foot to put a gold frame around the portrait. How much will the frame cost?

Answers

Answer:

The frame would cost $88

Step-by-step explanation:

The problem is asking for the perimeter basically. The formula to find the perimeter is P = 2l + 2w. So plug in 5 where there is a 'w' and plug in 6 where there is a 'l'.

22= 10+12    

Now that you have the perimeter, you'll have to find the cost of the frame. Just multiply 22 by the 4 dollars to get your answer.

hey! i’ll give brainliest please help.

Answers

Answer:

I think Darius I is the correct answer.

whats the volume ?????

Answers

Answer:

Step-by-step explanation:

Multiply the three dimensions

12 x 6 x 8 = 576 cm^3

The answer is 576, because 8x12x6 = 576

I’ll give BRAINLIEST. Create an inequalities system where one of the equations have “-x” as a slope. The other could be anything of your choosing.

Answers

-x83-82
Slope do 10
I hope this helps

PlZZ help me
Three people, Needcash, Wantmoney and Luvdough, share in a business in the
ratio of 4: 6:5. The profits are shared in the same ratio. If the business had a total
profit of $277 500, use proportions to determine how much would
Wantmoney receive?

Answers

Answer:

$111000

Step-by-step explanation:

[tex] \frac{277500}{ 4 + 6 + 5 } \\ = 18500 \\ \\ 18500 \times 6 = 111000 \: - the \: amount \: wantmoney \: would \: receive[/tex]

Paula has 3 bananas. She wants to divide each of them into 1/7 sections. How many 1/7's are there in 3 bananas.
A: 1/21
B: 2 1/3
C: 3/7
D: 21

Answers

Answer:

D is the one:)

'21' 1/7's are there in 3 bananas.

What is division?

The division is one of the basic arithmetic operations in math in which a larger number is broken down into smaller groups having the same number of items.

Number of bananas paula had = 3

She wants to divide each of them into 1/7 sections.

= 3 ÷ [tex]\frac{1}{7}[/tex]

= [tex]\frac{3}{\frac{1}{7} }[/tex]

= 3 × 7

= 21

Hence, '21' 1/7's are there in 3 bananas.

Find more information about division here

brainly.com/question/5805897

#SPJ2

Find the surface area of the prism.

A triangular prism. The base triangle is a right triangle with a base of 8 centimeters, slant height of 17 centimeters and height of 15 centimeters. The height of the prism is 7 centimeters.

Answers

Answer:

400cm²

Step-by-step explanation:

Total surface area of a prism includes the area of the top and bottom triangle sides of the prism, plus the area of all 3 rectangular sides.

Base & Bottom triangle area: 2 x [(8 x 15)/2] = 120cm²

Side triangle area: 17 x 7 + 8 x 7 + 15 x 7 = 280cm²

Total surface area = 280 + 120 = 400cm²

Which is a factor of 45x^4−5x^2? Show work.


a. 5x+2 b. 9x−1 c. 6x+5 d. 3x−1

Answers

Answer:

d. 3x - 1.

Step-by-step explanation:

45x^4−5x^2

The GCF is 5x^2 so we have:

5x^2(9x^2 - 1)

The expression in the parentheses is the difference of 2 squares so:

= 5x^2(3x - 1)(3x + 1)

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