Answers
Answer:
Area of Figure 1 = 48
Step-by-step explanation:
We are given CD and EF. We can use this to find the scale factor between the two shapes.
The scale factor from Figure 1 to Figure 2 is 7/4.
The scale factor from Figure 2 to Figure 1 is 4/7.
Perimeter of Figure 2: 16 × 7/4 = 28cm, which is correct.
Area of Figure 1: 147 × (4/7)^2 = 48cm^2 We square the SF as we only worked out the Length Scale Factor. The Area Scale Factor is the Length Scale Factor squared.
I hope this helps!! ^-^
Answer:
48 cm² and 28 cm
Step-by-step explanation:
The ratio of the sides 1 : 2 = 4 : 7
The ratio of the sides 2 : 1 = 7 : 4
The ratio of perimeters is the same as ratio of sides
let the perimeter of 2 be x , then
[tex]\frac{16}{x}[/tex] = [tex]\frac{4}{7}[/tex] ( cross- multiply )
4x = 112 ( divide both sides by 4 )
x = 28
Perimeter of fig. 2 is 28 cm
-----------------------------------------------------
Given ratio of sides = a : b , then
ratio of areas = a² : b²
Here ratio of sides = 4 : 7
ratio of areas = 4² : 7² = 16 : 49
let x be the area of fig. 1 and using proportion
[tex]\frac{16}{x}[/tex] = [tex]\frac{49}{147}[/tex] ( cross- multiply )
49x = 2352 ( divide both sides by 49 )
x = 48
area of fig. 1 is 48 cm²
Related Questions
Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)6
Answers
Answer: DECAY
Step-by-step explanation:
(.85) is less than 1
What's the measure of the angle indicated with a "?"
Answers
Answer: 108 degrees
Step-by-step explanation:
180 - 72 = 108
Answer this........Please
Answers
Answer:
x -22
Step-by-step explanation:
Sum = -7 (-22+15 = -7)
Product = -330 (-22*15 = -330)
Factors = -22 , 15
x² - 7x - 330 = x² +15x - 22x - 22 *15
= x(x + 15) -22(x + 15)
= (x +15)(x -22)
[tex]\frac{x^{2}-7x-330}{x + 15}=\frac{(x+15)(x-22)}{(x+15)}\\\\ =x - 22[/tex]
Arthur is organising his collection of dvds he has 135 altogether. The ratio of comedy films to action horror is 6 : 8 : 1
Answers
Answer: See explanation
Step-by-step explanation:
The number of comedy films will be:
= 6/(6+8+1) × 135
= 6/15 × 135
= 54 comedy films
The number of action films will be:
= 8/(6+8+1) × 135
= 8/15 × 135
= 72 action films
The number of horror films will be:
= 1/(6+8+1) × 135
= 1/15 × 135
= 9 horror films
(Will make brainliest if correct)
Henry and his children went into a grocery store and where they sell peaches for $2 each and mangos for $1.25 each. Henry has $20 to spend and must buy no less than 10 peaches and mangos altogether. If Henry decided to buy 4 peaches, determine all possible values for the number of mangos that he could buy. Your answer should be a comma separated list of values. If there are no possible solutions, submit an empty answer.
Answers
Since 4 peaches x 2 =8, you would would only be able to buy 6 mangos since $1.25 x 6 mangos =$7.5 so it would be $7.5+$8=$15.5 and 6 mangos+4 peaches=10 in total. And he would also save $5.00! :)
Please mark brainliest!
Hope it helps!
Simplify.
(-w^2 + 4w - 7)+(2w+3w+6)
Answers
Answer:
-w2 + 9w - 1
..............
I need help 911!!! I need thisss
Answers
Slope is (the change in y) / (the change in x).
The formula for slope is:
m = (y2 - y1)/(x2 - x1), with (x1, y1) being one point and (x2, y2) being the second. What you need to do is order the slopes from smallest to largest because slope means the same thing as rate of change.
#17. First, you need to find the slope of function A. To do this, I’m choosing two different points I see on the graph: (1,1) and (2,1). I now plug these into the slope formula:
m = (1-1)/(2-1) = 0/1 = 0.
The slope for function A = 0
To find the slope for function B, you can choose any two points. I’m going to use (3,0) and (6,1)
m = (1-0)/(6-3) = 1/3
The slope for function B is 1/3
For function C, you are already given the slope. That equation is in something called slope-intercept form (y=mx+b), where the x is being multiplied by the slope.
The slope on function C = 1/4
So,, A has the smallest slope, C has the second smallest slope, and B has the largest slope.
#18. The two points in using to find the slope for function A are (0,-3) and (1,0).
m = (0+3)/(1-0) = 3/1 =3
The slope for function A is 3
The two points I’m using for function B are (-2, 10) and (0, 20)
m = (20-10)/(0+2) = 10/2 = 5
The slope for function B is 5
The slope for function C is 1. When the slope is 1, it is not written because any number (other than 0) times 1 equals 1.
Function C has the smallest slope, function B has the second smallest slope, and function C had the largest slope.
It would probably be better for you to try 19 and 20 on your own, and let me or anyone else on Brainly know if you have any questions or something doesn’t make sense.
I hope this has helped!
Solve for x. (Round to the nearest tenth)
Answers
Answer:
13.7
Step-by-step explanation:
fill the numbers in using pythagorean theory
[tex]a^{2} + b^{2} = c^{2}[/tex]
(the hypotenuse has to be [tex]c^{2}[/tex])
[tex]9.2^{2} + b^{2} = 16.5^{2}[/tex]
[tex]84.64 + b^{2} = 272.25[/tex]
[tex]b^{2} = 187.61[/tex]
(to get [tex]b[/tex] alone you have to find the square root of both sides)
[tex]b = 13.69707[/tex]
round that and you get
[tex]b = 13.7[/tex]!
16. A cellphone family plan costs $49 per month plus $.05 per text. Write an equation for the monthly bill b when t texts are sent.
Answers
Is the equation
please help!
find the value of x in the isosceles triangle shown below.
4
6
Answers
Answer:
B
Step-by-step explanation:
Pythagorean theorem:
6^2 + (4/2)^2 = x^2
36 + 4 = x^2
40 = x^2
x = [tex]\sqrt{40}[/tex]= [tex]2\sqrt{10}[/tex]
Answer is B
A triangle has sides with lengths of 7 meters, 10 meters and 13 meters is it a right triangle
Answers
Answer:
No
Step-by-step explanation:
7 squared + 10 squared = 149
13 squared = 169
As you can see these two products are not equal. They have to be equal to be a right triangle.
So this triangle is not a right triangle.
Hope that helped you and have a great day!
Answer:
No it is not.
Step-by-step explanation:
Let h = 13, p = 10 and b =7
Using pythagoras theorem,
h² = p² + b²
13² = 10² + 7²
169 = 100 + 49
169 = 149
This is false so the triangle is not a right angled triangle.
Jetpack flyer recently landed in LA (230, 20). He found out his target is in San Francisco (40, 220). His jetpack can go 250 miles without refueling. How far will he have to walk when his jetpack runs out (Rounded to the nearest mile)?
He would have to walk approximately _____ miles when his jetpack runs out (Rounded to the nearest mile). Enter as a number only (units are already in the question).
Answers
Answer:
He has to walk 25.86 miles when his jetpack runs out
Step-by-step explanation:
Distance between LA (230,20) and San Francisco (40,220) is
[tex]\sqrt{(230-40)^2 + (20-220)^2}\\275.86[/tex]miles
He travelled distance of 250 miles without refueling.
He has to walk 25.86 miles when his jetpack runs out
how much is f5+7 if f is 109
Answers
Answer: 552
Step-by-step explanation:
Answer:
the answer is 552
Step-by-step explanation:
5 x 109 + 7 = 552
Halen wrote the product 0.4 for the problem at the right. Don says that is not correct because when you multiply tenths by tenths, the product will be in the hundredths. Is Don right? Explain.
Answers
Answer:
Helen is correct and Don is wrong
Step-by-step explanation:
Halen wrote the prodect 0.4 for the problem .5×.8. Don says that is not correct since when you multiply tenths by tenths the product will be in the hundreths. Is Don right?
.5 × .8 = 0.4
Helen is correct
Don is wrong because the zero(0) at the end of decimals are usually ignored
Such as: 0.10 ; it is usually written as 0.1
Same thing goes for 0.40 which is written as 0.4
Therefore, Helen is correct and Don is wrong
The first terms in the sequence are 1,4, 9, 16 ... what’s the next term in the pattern?
Answers
Answer:
25, 36, 49
Step-by-step explanation:
4 - 1 = 3
9 - 4 = 5
16 - 9 = 7
25 - 16 = 9
36 - 25 = 11
49 - 36 = 13
It goes up by odd numbers
Write a real life scenarlo that can be represented by the integer -55
Answers
Answer:
I deposit $500 in my bank from my check this week. I have to withdraw $550 from my bank to pay my medical bills. I am short -55/55 dollars so I wait to pay my medical bills.
I owe $60 to my school for damage on a school laptop. I only have $5 so I am 55 dollars short.
I withdraw $2,000 from my bank to deposit $1950 a week later. I want to deposit the same amount of money I put last week. I am short 55 dollars.
Step-by-step explanation:
I put different scenarios because I didn't know if any of them were good enough.
What is
5
6
−
3
8
?
A.
1
3
B.
9
16
C.
1
12
D.
11
24
Answers
5/6 - 3/8
Rewrite the fractions to have a common denominator:
5/6 x 4 = 20/24
3/8 x 3 = 9/24
Now you have 20/24 - 9/24 = 11/24
The answer is D. 11/24
Answer:
D. 11/24
Step by Step Explanation:
Just use cymath.
-5 - (-7) what’s the answer
Answers
Answer:
The answer should be -5+7= 2
Answer:
2
Step-by-step explanation:
[tex]-5-(-7)\\\\-5+7\\\\\boxed{2}[/tex]
We would distribute the '-' into the '-7' to yield the second step.
Hope this helps.
2. Use the equation 3x + 4y = 2.
a) Write another equation that will create a linear system
with each number of solutions.
i)
ii) one
üü) infinitely many
none
Verify your answers for part o)
b)
Answers
Answer:
x= −4 /3 y+ 2/ 3
Step-by-step explanation:
The measures of the angles of a triangle are shown in the figure below. Solve for x.
(8x-9)°
63°
70°
Answers
Answer:
x= 7
Step-by-step explanation:
Theorem: The sum of the angles of a triangle is 180
Memorize that theorem
8x - 9 + 63 + 70 = 180
8x + 124 = 180
8x = 56
x= 7
You intend to screen out 80% of candidates based on their resumes. You'll then narrow that pool by another 70% via
phone interviews. This will leave you with 10 candidates for in-person interviews. For this plan to work, how many candidates do you need to
start
Answers
Answer: 167
Step-by-step explanation:
Because I just answered it
Please solve quickly 11-14
Answers
Answer:
Step-by-step explanation:
11). 6x + 3y = 9
3(2x + y) = 9
2x + y = 3
y = -2x + 3
Since variables are of single degree therefore, it's a linear function
12). 3y - 2x = -2x - 12
3y - 2x + 2x = -2x - 12 + 2x
3y = -12
y = -4
Since variable y is of single degree therefore its a linear function.
13). 11y + 4x = -8 + 11y
11y + 4x - 11y = -8 + 11y - 11y
4x = -8
x = -2
Linear function.
14). 4x - 3 + 2y = 8x - 9
4x + 2y - 3 - 4x = 8x - 4x - 9
2y - 3 = 4x - 9
2y = 4x - 9 + 3
2y = 4x - 6
y = 2x - 3
Linear function.
Someone help me please!!!Fully simplify.
Answers
Mr. Walker is looking at the fundraiser totals for the last five years.
A 2-column table with 5 rows. The first column is labeled year with entries 1, 2, 3, 4, 5. The second column is labeled total (in dollars) with entries 896, 925, 880, 963, 914.
How does the mean of the totals compare to the median?
Answers
Answer:
Correct answer is B on EDGE
Step-by-step explanation:
Answer:
ba ba ba B is the answer go go ga ga
Step-by-step explanation:
calculate the amount of money invested at 8.5% per annum when 2,488.80 simple interest was collected after three years. anyone help please
Answers
Answer:
2488.80 divided by 3=838.1
convert the following decimals into rational numbers:
1.4325
Answers
Answer
[tex]\frac{573}{400}[/tex]
step-by-step explanation:
[tex]\frac{1.4325}{1}[/tex] × [tex]\frac{10000}{10000}[/tex] = [tex]\frac{14325}{10000}[/tex]
Simplify
[tex]\frac{14325}{10000}[/tex] ÷[tex]\frac{25}{25}[/tex] = [tex]\frac{573}{400}[/tex]
The number of hot drinks sold in a café decreases as the weather becomes warmer. What type of correlation does this statement show?
Answers
2x+2y=4 and -3x-2y=-7
Answers
Answer: You didnt tell me how to solve it, but I used subsitution. For ubsitution the answer is, (3,-1)
Step-by-step explanation:
In Greenville, the library is 8 miles due east of the post office and the zoo is 6 miles due south of the library. What is the distance from the post office to the zoo?
Answers
Answer:
10 miles
Step-by-step explanation:
WILL MARK BRAINLIEST TO THE FIRST PERSON!!!!!
Answers
Answer:
3.9
Step-by-step explanation:
3.98371685