Answer:
A
Step-by-step explanation:
∆ABC is similar to ∆DEF if and only if the ratio of their corresponding side lengths are the same.
Let's find out:
DE/AB = 10/5 = 2
EF/BC = 8/4 = 2
FD/CA = 12/6 = 2
The ratio of their corresponding side lengths are equal, therefore, ∆ABC is similar to ∆DEF based on the SSS Similarity Theorem.
Help Plz!!
What system is Y = 2x + 1 and Y = -2x + 5?
A. Consistent system
B. Dependent system
Answer:
consistent
Step-by-step explanation:
help me for brainlist
Answer:
72,000
Step-by-step explanation:
help with circle measurements asap plzzzz
Answer:according to the formula of inscribed angle theorem
[tex]3x + 22 = \frac{1}{2 } \times 134[/tex]
[tex]3x + 22 = 67[/tex]
[tex]3x = 67 - 22[/tex]
[tex]3x = 45[/tex]
[tex]x = \frac{45}{3} [/tex]
[tex]x = 15[/tex]
The answer is 15 degrees
find the distance round to the nearest tenth (-8, -6) (-3,-2)
Answer:
[tex]\displaystyle d \approx 6.4[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightAlgebra I
Coordinates (x, y)Algebra II
Distance Formula: [tex]\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Step-by-step explanation:
Step 1: Define
Point (-8, -6)
Point (-3, -2)
Step 2: Find distance d
Simply plug in the 2 coordinates into the distance formula to find distance d
Substitute in points [Distance Formula]: [tex]\displaystyle d = \sqrt{(-3+8)^2+(-2+6)^2}[/tex][√Radical] (Parenthesis) Add: [tex]\displaystyle d = \sqrt{(5)^2+(4)^2}[/tex][√Radical] Evaluate exponents: [tex]\displaystyle d = \sqrt{25+16}[/tex][√Radical] Add: [tex]\displaystyle d = \sqrt{41}[/tex][√Radical] Evaluate: [tex]\displaystyle d = 6.40312[/tex]Round: [tex]\displaystyle d \approx 6.4[/tex]Answer:
6.4
Step-by-step explanation:
d=√((−3−(−8))^2+(−2−(−6))^2)
d=√((5)^2+(4)^2)
d=√(25+16)
d=√(41)
d=6.403124
d=6.4
A membership at a yoga studio costs $35 per month. Write an equation for the cost of the membership, c, that you pay if you keep your membership for m months How much will you membership cost if you keep it for 20 months
7^2 + 5 + 8 + 9 =
plz help i am in six grade
Answer:
71
Step-by-step explanation:
plz mark brainlest
How long does it need to keep $600 in an account that pays 2.75% annual simple interest to earn $264?
Answer:
16 years
Step-by-step explanation:
Principal amount (P) = $600
Rate of interest (R) = 2.75%
Simple interest (S.I.) = $264
Let t denotes time period.
[tex]S.I.=\frac{PRT}{100}[/tex]
[tex]264=\frac{600(2.75)t}{100} \\\\t=\frac{264(100)}{600(2.75)}[/tex]
[tex]t=16[/tex] years.
Therefore,
interest of $264 will be earned in 16 years.
At a recent breakfast, four friends paid for their own drinks and shared the cost of a bag of donuts. Joe's drink was $1.75. He paid a total of $3.20 for breakfast. How much did the bag of donuts cost?
Answer:
$5.80
Step-by-step explanation:
To answer, we must first subtract the toal cost Joe paid by the amount he paid for his drink, because ha paid for his drink separately. so:
3.20 - 1.75 = 1.45
And because there were a total of 4 friends, we mulitply the answer by 4:
1.45 * 4 = 5.8
So, the bag of donuts costed $5.80
Hope this helps :)
Mr.Sawyer drove his car from his home to New York at the rate of 45mph and returned over the same road at the rate of 40mph. If his time returning exceeded his time going and his time returning?
Complete question :
Mr. Sawyer drove his car from his home to New York at the rate of 45 mph and returned over the same road at the rate of 40 mph. If his time returning exceeded his time going by 30 min, find his time going and his time returning.
Answer:
T1 = 4
T2 = 4.5
Step-by-step explanation:
Difference in time = 0.5 hour
Time = distance / speed
Let distance = d
Time, T1 = d / 45
Time, T2 = d / 40
d/40 - d /45 = 1/2
(45d - 40d) / 100 = 2
45d - 40d = 900
5d = 900
d = 180
T1 = 180 /45 = 4 hours
T2 = 180 / 40 = 4.5 hours
The width of a rectangular video game cartridge is 2 in. more than the length. The area is 16 in?.
Find the dimensions of the cartridge.
Equation:
Solution:
What could be the location of point w
Answer: 10
Step-by-step explanation:
A boat traveled 150 miles downstream (with the current) and back (against the current). The trip downstream took 10 hours. The trip back took 30 hours. What is the speed of the boat (b) in still water? What is the speed of the current (c)?
Answer:
b= 10 miles/hr and c= 5 miles/hr
Step-by-step explanation:
Let it's downstream and upstream speed be d and u respectively
also speed of the boat be b and speed of stream be c.
as per question d = 150/10= 15 miles/hr
and, u= 150/30= 5 miles/hr
also we know d= b+c = 15.....i and u = b-c= 5....ii
solving i and ii we get b= 10 miles/hr and c= 5 miles/hr
Two trains, Train A and Train B, weigh a total of 379 tons. Train A is heavier than Train B. The difference of their weights is 255 tons. What is the weight of each train?
Answer: A = 317
B = 61
Step-by-step explanation:
The following equation can be gotten from the question given. This will be:
A + B = 379 ........ i
A - B = 255 ........ ii
From equation i, make A the subject of the formula
A = 379 - B ...... iii
Put the value of A in iii into equation ii
A - B = 255
(379 - B) - B = 255
379 - B - B = 255
379 - 2B = 255
2B = 379-255
2B = 124
B = 124/2
B = 62 tons
Since A + B = 379
A + 62 = 379
A = 379 - 62
A = 317 tons
What is 193 + y ≥ 201.
Answer:
y≥ 8
Step-by-step explanation:
Please help me wit this
Answer:
1. Equation: y = -1.17491x + 81.791 (you may need to round!)
2. Correlation coefficient: -0.8566
3. Strong negative correlation because the correlation coefficient is close to -1
4. Sketch the scatterplot using north latitude as the x value and Jan mean temp as the y value on the graph
Step-by-step explanation:
Step 1: Go to desmos graphing calculator
Step 2: Insert a table
Step 3: Insert values into the table (shown in image) using the north latitude as the x value and jan mean temp as y value
Step 4: Go to line 2, and type "[tex]y_1 = mx_1 + b[/tex]" except replace "=" with ~ as shown in the image. Put the 1s as subscripts
Step 5: Scroll out. Desmos would've graphed the line of best fit and plotted the points. Under statistics, you can see that r is the correlation coefficient
Step 6: The correlation coefficient r will be between -1 and 1. If it is closer to -1 or 1, it is a strong correlation. If it is closer to 0, it is a weak correlation. For example. -0.6 is closer to -1 than it is to 0, so it is a strong negative correlation. You can see that r here is -0.8566, which is strong negative.
Step 7: Lastly, you need to make the equation. It will be in the form y = mx + b. If you look under "parameters", there will be a value for m and b. Plug that in to the equation. Check to see if you need to round.
Step 8: To graph the scatterplots, you can use the graph and the points that desmos plotted as a reference. Good luck!
I hope I did it right, we just finished this at school and I got 100% on the test. Comment with any questions. Best of luck! - brainpop72
Can someone help me find the area
Answer:
84
Step-by-step explanation:
8x6=48
2x4=8
4x7=28
48+28+8=84
Anyone can help ? I have no clue what the answer maybe
help I will give brainiest it will mean alot. find the scale factor
Answer:
Step-by-step explanation:
16:1
[tex]\frac{2y+1}{3}[/tex]=[tex]\frac{y-2}{4}[/tex]
Freddy’s savings account went from $520 to $321 after he purchased a new bike. What was the percent decrease?
Step-by-step explanation:
The bike cost $199 to get $199 you do a number line then label 520 then at the end label 321 so then you do -20 then -100 then -50 then -20 then -9. so now you add them up 20+100+50+20+9 which equals =199
so bike cost $199
then 520%×199= 1034.8
or 520%×321=1669.2
so the percentage is 1669.2 or 1034.8 probably 1669.2 but they bot count.
Which of the following functions represents an arithmetic sequence?
Of(n) 3"-4"
Of(n) 3-4
O fm) 374
O fin) - 34
Answer:
Step-by-step explanation:
The O is not part of the function.
f(n) = 3n-4 is an arithmetic sequence. The first term is -1 and the common difference is 3.
state whether the following pairs of triangles are congruent or not. Give reasons for your answers. if there is not enough information to make a decision, explain why.
Answer:
91jr9jw9nfienfiebfuw cowcow viece
PLEASE HELP IT'S DUE IN 20 MINUTES!!!
What is the equation of a circle with a radius of 7 and centered at point (3, -4)? please help fast!
Answer:
Vertex (3, –4) r = 7
Step-by-step explanation:
[tex](x -3)^{2} + (y+4)^{2} = 49[/tex]
Francis scores 3 more than 2 times the number of points that Ray scores. If r represents the number of points Ray scores, which expression represents the number of points Francis scores?
1. 5r
2.6r
3.2r+3
4.3r+2
If triangle LMN is similar to triangle XYZ, then side LN corresponds to side
Answer:
The side it corresponds to is XZ
On a scale drawing 1cm represents 4 m.What length on the drawing would be used to represent 6.5 m
Answer:
1.6cm
Step-by-step explanation:
1cm=4m
=6.5m
6.5÷4=1.625 round it off to the nearest tenths=1.6
Hi, could someone help me with these two questions please? Thank you!
how could you represent the following scenarios of the graph ? Silvia has $5.50 in her piggy bank and earns $2
per chore she does at her house.
Answer:
We know that Silvia has $5.50 in her piggy bank, and she earns $2 per chore she does at her house.
So if she does x chores at her house, she will have:
y = f(x) = $2*x + $5.50
where y = her savings.
This is a linear relationship, to graph this, we need to evaluate the function in two different values of x so we can get two ordered pairs.
Then we graph the ordered pairs in the coordinate axis, and then we draw a line that passes through both points.
We can use the points given by x = 0.
y = f(0) = $2*0 + $5.50 = $5.50
Then we have the point (0, $5.50)
and if we use x = 1 we get:
y = f(1) = $2*1 + $5.50 = $7.50
Then we have the point (1, $7.50)
Now we just need to graph the points (0, $5.50) and (1, $7.50), and draw a line that passes through them.
The graph is shown below.
la adición de dos números es -17. Calcula el Numero Menor, si el mayor es -8
Step-by-step explanation: