Anyone understand this

Anyone Understand This

Answers

Answer 1
using similar figures,
15/20 = (x+2)/(2x-4)

cross multiply,
15(2x-4) = 20(x+2)
30x-60 = 20x+40
10x = 100
x = 10

explanation : since the two triangles are similar figures, the ratio of the lengths of the base side will be equal to the ratio of the lengths of the slant side. to find the lengths on the larger triangle we simply add both values together.

hope this helps! feel free to ask if you’re confused by the explanation :-)

Related Questions

Please answer!!!!!!!!!!!!!!

Answers

I ain’t never seen two pretty best friends 1 of the always gotta be ugly. (Sorry)

A little girl counts using the fingers of her left hand as follows: She starts by calling her thumb 1, the first finger 2, middle finder 3, ring finger 4, and little finger 5. Then she reverses direction, calling the ring finger 6, middle finger 7, first finger 8 and thumb 9, after which she calls her first finger 10 and so on. If she continues to count in this manner, on which finger will she stop?
a) What if the girl counts from 1 to 10?
b) What if the girl counts from 1 to 100?
c) What if the girl counts from 1 to 1000?

Answers

Answer:

(a) Index finger

(b) Ring finger

(c) Index finger

Step-by-step explanation:

Taking thumb as standard for the question.

Thumb series 1 , 9 , 17 ,25, 33......

general term for this

a(n) = 1 + (n-1)8

      = 1 + 8n -8

       = 8n -7

(a) For 1 to 10

     8n -7 = 10

     8n = 16+1 (remainder)

so the thumb is for 9 and the next is index finger.

10th = index finger.

(b) for 1 to 100

    8n - 7 = 100

      8n= 107

     107 = 13x 8 + 3(remainder)

so the third finger from thumb is Ring finger

100th = Ring finger

(c) 8n - 7 = 1000

   8n = 1007      

 1007= 125x8 +7 (remainder)

so the 7th finger next to thumb is Index finger

1000th = index finger

Helen has $100 to spend on new school clothes. She has purchased three shirts that cost the same for a total of $36.75. If she buys two more shirts at the same price, how much money will Helen have left to spend?

Answers

Answer:

$-83.75

Step-by-step explanation:

She won't have any more money to spend

Multiply $36.75 by 5

That would be $183.75

Subtract 183.75 from 100

-83.75

So Helen wouldn't have anything left to spend.

She would actually be in debt because she used more than $100

x - y = 11 and 2x + y = 19 by elimination​

Answers

Answer:

(14,3)

Step-by-step explanation:

2x + y = 19

x - y = 11

-2(x - y) = -2(11)

-2x + 2y = -22

-2x + 2y = -22 + 2x + y = 19

3y = -3

y = 3

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

x - y = 11

x - 3 = 11

x = 11 + 3

x = 14

Write the slope intercept form of the equation of the line through the given points.
through: (0, 2) and (-4, -1)

Answers

Answer:

You use the formula (y to the second power minus y to the first power minus the same formula with the two different points

Step-by-step explanation:

Isaiah is working two summer jobs, making $16 per hour tutoring and $10 per hour clearing tables. isaiah must earn at least $110 this week. write an inequality that would represent the possible values for the number of hours tutoring, t, and the number of hours clearing tables, c, that isiah can work in a given week​

Answers

Answer:

16t + 10x = 110

Step-by-step explanation:

t = tutoring

x = cleaning tables

16t + 10x = 110

All you do is plug in numbers.

Answer:

16t + 10c>=110

Step-by-step explanation:

the total earned from tutoring in a week is

16(t)

and the total earning from clearing tables per week is

10(c)

but in a week he has to earn a minimum of 110 dollars

I couldnt find the awnser for this question anywhere

Answers

The answer is y=9.90 degrees (rounded)

Which graph represents the function y = 2 x - 2? ​

Answers

Answer:

the third one!

Step-by-step explanation:

the third graph represents that :)!

True or false?



30 is divisible by 2, 4, 5, and 10. hurry please trying to go get my nails done

Answers

Answer:

It's false see 4 cannot go into 30 can I have

brainly?:)

Step-by-step explanation:

30 is not divisible by 4. The answer is false

What is the equation of the line that has a slope of -4 and passes through ( 9, -5)

Answers

Answer:

y = -4x + 31

Step-by-step explanation:

y = mx + b

y = -4x + b

-5 = -4(9) + b

-5 = -36 + b

b = 31

Which Division Property is shown below?
0
------ = 0
14-8

Answers

Answer:

When a number 'x' is divided by another number 'y', the number 'x' is divided into 'y' number of equal parts.  

If 'y' divides 'x' without any remainder, then 'x' is evenly divisible by 'y'.

Step-by-step explanation:

(i)  When 21 is divided by 3, 21 is divided into three equal parts and the value of each part is 7.  

(ii)  When we divide 35 by 5, we get

7 + 7 + 7 + 7 + 7

(iii)  When 35 is divided by 5, 35 is divided into 5 equal parts and the value of each part is 7. And also, there is nothing left over in 35.

So, 35 is evenly divisible by 5.

(iv)  When 35 is divided by 4, we get

8 + 8 + 8 + 8 + 3

There is remainder 5, when 35 is divided by 3.

So, 35 is not evenly divisible by 4.

Property 2 :  

When a number is divided by another number, the division algorithm is, the sum of product of quotient & divisor and the remainder is equal to dividend.

1 + 1???????????????????

Answers

Answer:

2

Hopefully that's the answer you wanted XD

Answer:

2

Step-by-step explanation:

How do I fill out this form please help!

Answers

Answer:

what form?

Step-by-step explanation:

Answer:

Thats a good question

Step-by-step explanation:

lol.

Michelle jumps from a plane at an altitude of 1000 m. After 10 seconds her parachute opens. The graph shows the relationship between the distance traveled and time. How long does it take for her to be half way between the plane and the ground? (1 point)

Continuous graph with the y axis labeled Distance (m) and the x axis labeled Time, min. The function consists of 3 lines, the first is almost vertical with a positive slope connecting the points 0,0, to approximately 1 of 6, 250. From that point the second line connects to the first and passes through the points 1,500, 2,800 and 2 1 over 3, 1000. From that point the function is horizontal.

a
40 s

b
1 min

c
1 min 20 s

d
1 min 40 s

Answers

Answer:

B

Step-by-step explanation:

If you look at the graph/chart, it starts at 1,000, so half of that is 500, so you go down to 500, and go straight down to see the number of time under it (In this case, is 1 minute) so you know it is one minute

7m+21=5m−5
Can someone help me?

Answers

Answer:

m=13

Step-by-step explanation:

7m+21=5m-5

7m-5m=2m

2m+21=-5

-5-21=-26

2m=-26

-26/2

13

13=m

Answer:

m=-13

Step by step is glitching out

Please answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!

Answers

The sum of two complementary angles is 90 degrees.

Angle A  +  Angle B = 90

Let Angle B = X

5x + 2 + x = 90

Combine like terms:

6x +2 = 90

Subtract 2 from both sides:

6x = 88

Divide both sides by 6:

x = 88/6

x = 14.67

Angle B = 14.67 degrees ( rounded to the nearest hundredth)

Which of the following is equivalent to logb sqrt 57/74

Answers

What do u mean I need to see a picture

An architect is building a scale model of an office building. The scale used to build the model is 1
120
.

What is the equivalent decimal value for this scale?
0.008
0.008 ModifyingAbove 3 with bar
0.8 ModifyingAbove 3 with bar
0.00 ModifyingAbove 83 with bar

Answers

Answer:

B

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Choose the graph of this equation. y = 2.5x

Answers

Answer:

The graph is in the picture below

Step-by-step explanation:

Consider the following.
cos(x) = x3
A) Prove that the equation has at least one real root.
The equation cos(x) = x3 is equivalent to the equation f(x) = cos(x) − x3 = 0. f(x) is continuous on the interval (0, 1) there is a number c in (0, 1) such that f(c) = 0 by the Intermediate Value Theorem. Thus, there is a root of the equation cos(x) = x3, in the interval (0, 1).
B) Use your calculator to find an interval of length 0.01 that contains a root.

Answers

Answer:

Step-by-step explanation:

Given that:

cos(x) = x³

f(x) = cos (x) - x³

f(x) is continuous on the interval (0, 1)

when;

f(0) = cos (0) - (0)

f(0) = 1 - 0

f(0) = 1 > 0

f(1)  = cos (1) - 1³

f(1) = 0.5403 - 1

f(1) = -0.4597

f(1) = - 0.46

f(1) = - 0.46 < 0

Since, 1 > 0 > -0.46, thus there is a number ''c" in (0,1)

such that f(c) = 0

By applying the Intermediate Value Theorem, there is a root of the equation in the interval (0,1)

b) Given that:

The interval length = 0.01; this implies that it is 0.005 length from its root.

f(0.865) = 0.0014

f(0.87) = - 0.013

The solution to the interval lies between 0.865 , 0.87 by using a calculator at length 0.01.

Brent and Sarah agree to share a bag of skittles in the ratio 3 to 2. If Sarah gets 52 skittles, how many skittles are in the bag

Answers

Answer:

130 skittles

Step-by-step explanation:

Since Sarah is the 2 side of the ratio, i divided her side of it by 2 so i could multiply by 5 to get the full bag. 3:2 = 78:52 skittles

Graph the equation y = x2 + 6x + 5 on the accompanying set of axes. You must
plot 5 points including the roots and the vertex.

Answers

Answer:

Please check the graph below.

Step-by-step explanation:

Given the function

[tex]y\:=\:x^2\:+\:6x\:+\:5[/tex]

Axis interception points of the function

x-axis interception points can be computed by setting y=0

[tex]x^2+6x+5=0[/tex]

[tex]\left(x+1\right)\left(x+5\right)=0[/tex]

Using the zero factor principle

if  [tex]\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)[/tex]

[tex]x+1=0\quad \mathrm{or}\quad \:x+5=0[/tex]

[tex]x=-1,\:x=-5[/tex]

Hence,

x-axis interception points are: (-1, 0), (-5, 0)

y-axis interception points can be computed by setting x=0

[tex]x^2+6x+5=0[/tex]

[tex]y\:=\:\left(0\right)^2\:+\:6\left(0\right)\:+\:5[/tex]

[tex]y=0+0+5[/tex]

[tex]y=5[/tex]

Hence,

y-axis interception points are: (0, 5)

From the graph, it is clear that at (-3, -4) the parabola changes direction, hence (-3, -4) it the "vertex".

Also at the point x=-2, then y is = -3

So, all the points are labeled and the graph is attached below.

CAN SOMEONE HELP ME WITH THIS

Answers

Answer:

The vertices of a triangle 1/4 the size of the shown triangle would be: (1,1), (2,3), (0,3)

Step-by-step explanation:

For the linear model, y = -67.9x +679, the distance, in miles y, is a function of time, x, in hours. Use the model to calculate the total distance, in miles, at x = 2 hours.

Answers

Answer:

543.2 miles

Step-by-step explanation:

Input the given value of x into the equation and solve for y:

y = -67.9x + 679

y = -67.9(2) + 679

y = -135.8 + 679

y = 543.2

The total distance in miles after 2 hours is 543.2 miles.

hello , anyone able to help with question 5? thanks :)!

Answers

Answer:

see explanation

Step-by-step explanation:

Using the product/ difference identity

sinxsiny = [tex]\frac{1}{2}[/tex] [ cos(x - y) - cos(x + y) ]

Consider the left side

2sin([tex]\frac{\pi }{4}[/tex] + α)sin([tex]\frac{\pi }{4}[/tex] - α )

= cos[[tex]\frac{\pi }{4}[/tex] + α - [tex]\frac{\pi }{4}[/tex] + α ] - cos [[tex]\frac{\pi }{4}[/tex] + α + [tex]\frac{\pi }{4}[/tex] - α ]

= cos2α - cos[tex]\frac{\pi }{2}[/tex]

= cos2α - 0

= cos2α = right side , thus proven

Write the slope intercept from of the equation of the line that passed though the given points.

(−1,−2)(1,−4)

Answers

Answer y=-x-3, ——————

when f(×)=-4(1/2)^-x, what is f(2)​

Answers

Answer:

16

Step-by-step explanation:

Given expression:

   f(x) = 4 [tex](\frac{1}{2} )^{-x}[/tex]

  Now we are to find f(2);

 To find f(2) we are to substitute 2 for any place where we find x;

  f(2)  = 4 [tex](\frac{1}{2} )^{-2}[/tex]

  f(2)  = 4 x [tex]\frac{1}{(\frac{1}{2})^{2} }[/tex]  

 f(2) = 4 x [tex]\frac{1}{\frac{1}{4} }[/tex]  

f(2) = 4 x 4 = 16

-8 - x = x - 4x
how does x equal to 4 and how do u do this

Answers

Answer:

x=4

Step-by-step explanation:

-x=-3x+8

-x+3x=-3x+8+3x

2x=8

2x/2 = 8/2

x = 4

Best Answer gets brainiest!

Answers

Answer:

A. Topsoil costs half as much as mulch.

B. Mulch costs the same amount as topsoil.

C. Mulch costs $10 more per cubic yard than topsoil.

D. Topsoil costs $10 more per cubic yard than mulch.

Step-by-step explanation:

Answer:

I'm answering this question so 1 the other person can get brainliest and 2 so I can say:

HIIIIIIIIIIIIIIIIIIIIIII!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Does anybody know the answer to this question I need help please?!

Answers

Answer:

Answer is C

Step-by-step explanation:

When u plug in the values in C u get the ranges

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