The question was rewritten because it has an obvious mistype.
Answer:
The coordinates of B' are (-3,-15)
Step-by-step explanation:
We are given the point A(-3,-1) and we know it was dilated to the point A'(-9,-3) by some scale factor.
The scale factor can be found by dividing each coordinate of A' by the same coordinate of A. Let's call the factor as k:
k = -9/(-3) = 3
k = -3/(-1) = 3
Thus the scale factor is 3.
If we apply the same factor to B(-1,-5), we get the coordinates of B' as:
B'( 3*(-1) , 3*(-5) ) = B'(-3,-15)
The coordinates of B' are (-3,-15)
A right triangle has one angle that measures 24°. What is the measure of the other acute angle?
Answer:
66 degrees
Step-by-step explanation:
90+24=114
180-114=66
Answer:
66 degrees
Step-by-step explanation:
a right triangle must have a 90 degree angle and our other angle is 24. we also know that the sum of all the angles must be 180. 90+24=114
180-114 is 66
Wrote a linear function f with the values f(-4)=0 and f(4)=2
Answer:
y = (1/4)x + 1
Step-by-step explanation:
The points mentioned are (-4,0) and (4,2).
We can find the slope m:
(2-0)/(4-(-4)) = 2/8 = 1/4
We now have the equation y = (1/4)x + b
Now we must find the y-intercept.
Plugging in the first point:
0 = (1/4)*(-4) + b
0 = -1 + b
1 = b
y = (1/4)x + 1
The length of a rectangular piece of cardboard is 2 cm greater than its width. If the length and the width were each decreased by 1 cm, the area of the cardboard would be decreased by 27 cm². What are the dimensions of the original piece of cardboard?
Write and solve an equation to represent the problem.
9514 1404 393
Answer:
13 cm wide; 15 cm long
Step-by-step explanation:
Let w represent the original width. Then the original length is (w+2) and the original area is w(w+2). After the decrease, the width is (w-1) and the length is (w+1). The decreased area is (w-1)(w+1). The difference between these areas is 27, so we have ...
w(w+2) -(w-1)(w+1) = 27
w^2 +2w -(w^2 -1) = 27
2w +1 = 27
w = (27-1)/2 = 13
The original piece of cardboard was 13 cm wide and 15 cm long.
¿Cuántas placas diferentes de autos se pueden formar con 3 letras, seguidas de 4 números del 0 al 9? Considere que el alfabeto letras. cuenta con 27
Answer: Se pueden hacer 196,830,000 placas distintas.
Step-by-step explanation:
Cada placa va a tener 3 letras y 4 números.
Lo primero que tenemos que hacer es contar el numero de opciones que tenemos para cada selección, donde las selecciones van a ser.
Primera letra, segunda letra, tercera letra, primer numero, etcétera.
Entonces.
Para la primera letra tenemos 27 opciones.
Para la segunda letra también tenemos 27 opciones.
Para la tercera letra también tenemos 27 opciones.
Para el primer numero tenemos 10 opciones (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
para el segundo numero también hay 10 opciones.
Para el tercer numero también hay 10 opciones.
Para el cuarto numero también hay 10 opciones.
El numero total de posibles combinaciones va a ser igual al producto de todos los números de opciones, en este caso es:
C = 27*27*27*10*10*10*10 = 27^3*10^4 = 196,830,000
Se pueden hacer 196,830,000 placas distintas.
The ratio of red starburst to yellow starburst in the bag is 8 to 3. There are 40 red starburst in the bag, how many are yellow?
Please Help me I really need help
Answer:
2
Step-by-step explanation:
help needed, fast! thank you :)
Answer:
x ≥ 16
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define
x - 4 ≥ 12
Step 2: Solve for x
Add 4 to both sides: x ≥ 16Here we see that any value x greater than or equal to 16 would work as a solution to the inequality.
Answer: x ≥ 16
Step-by-step explanation:
x−4≥12
Step 1: Add 4 to both sides.
x−4+4≥12+4
x≥16
Answer:
x≥16
A college student completed some courses worth 6 credits and some courses worth 4 credits. The student earned a total of 104 credits after completing 21 courses. How many courses worth 4 credits did the student complete?
Answer:
4
Step-by-step explanation:
Best answer gets Brainliest!!!!
Answer:
no
Step-by-step explanation:
if it was the amount of time would be going up at a constant rate but its not
and your graph is wrong
hope this helps <3
sorry if this is wrong this is a weird question :/
please help me i need help bad
Answer:
Line segment A' B' has a length of 2 units, and line segment C' D' has a length of 4 units.
Step-by-step explanation:
All we need to do is count the units in between the line segments.
find the measure of the line segment TV
9514 1404 393
Answer:
18
Step-by-step explanation:
When chords cross, the product of the lengths of the pieces is the same for each chord:
EU·ES = ET·EV
8·9 = (12x)(6x)
72 = 72x^2
x^2 = 1 ⇒ x = 1
Then the length of interest is ...
TV = ET +EV = 12·1 +6·1
TV = 18
Select the correct statement about the function represented by the table.
Answer:
the answer is d because it
The population of a country grows exponentially at a rate of 1% per year. If the population was 35.7 million in the year 2010, then what is the population size of this country in the year 2015
Answer:
37.52 million
Step-by-step explanation:
using,
A = A'(1+R/100)ⁿ............................. equation 1
Where A = population size in 2015, A' = Initial population, R = rate in percentage, n = number of times between 2010 and 2015.
Given: A' =35.7 million, R = 1%, n = 5.
Substitute these values into equation 1
A = 35.7(1+0.01)⁵
A = 37.52 million.
Hence the size of the population of the country in the year 2015 is 37.52 million
The local authorities in a certain city install 10,000 electric lamps in the streets of the city. If these lamps have an average life of 1000 burning hours with a standard deviation of 200 hours, assuming normal distribution, what number of lights might expected
Step-by-step explanation:
It is given:
[tex]\mu=1000[/tex], [tex]\sigma=200[/tex]
Let x be the random variable that denotes the number of hours the lamp lights up.
what number of lights might expected to fail in the first 800 burning hours
Answer: We are required to find the expected number of lights to fail in the first 800 burning hours.
First, we have to find the probability as:
P(Z < 800)
Using the z-score formula, we have:
Using the z-score formula, we have:
[tex]P(x <800)=P \left(z<\frac{800-1000}{200} \right )[/tex]
=P(z<-1)
Now using the standard normal table, we have:
P(x<800)=P(z<-1)=0.1587
Therefore, the expected number of lights to fail in the first 800 burning hours is:
[tex]\boldsymbol{0.1587 \times 10000=1587}[/tex]
After how many burning hours 10% of the lamps would be still burning?
We first need to find the z-value corresponding to area = 1- 0.10 = 0.90. Using the standard normal table, we have:
z(0.90)=1.28
Now using the z-score formula, we have:
[tex]z= \frac{x-\mu}{\sigma}[/tex]
[tex]1.28= \frac{x-1000}{200}[/tex]
[tex]1.28 \times 200= x-1000[/tex]
[tex]256= x-1000[/tex]
x= 1000+256
[tex]\boldsymbol{x= 1256 }[/tex]
Using the Zscore principle, the number of bulbs expected to Fail in the first 800 burning hours is 1587
Given the Parameters :
σ = 200μ = 1000x = 800The number of Lamps that might be expected to fail in the first 800 burning hours :
Recall:
Zscore = (x - μ) ÷ σZscore = (800 - 1000) / 200 = -1
Using the normal distribution table :
P(Z < -1) = 0.15866
The number of bulbs expected to fail :
P × total number of bulbs0.15866 × 10000 = 1586.6
Hence, 1587 bulbs are expected to fail in the first 800 burning hours.
Learn more : https://brainly.com/question/25226377
Help me please i need help.
A bouquet of flowers contains 46 flowers and half of them are roses. How many of the flowers are not roses? *
can someboby plz help
Answer:
23
Step-by-step explanation:
I will mark BRAINLIEST pls I need to turn this in soon !!!!!
5. Use the race times to calculate the mean time for each team. Show your work
Red:
Yellow:
Blue:
6. How do the tree teams rank based on mean times? List them in order from fastest to slowest, and explain your ranking
7. How do the three teams rank based on median times? Explain your ranking
8. What statistic should you use if you wish to compare the spreads? Explain your answer
9. The interquartile range for the red teams race time is 5 seconds. Find the IQR for the yellow and blue teams.
10. What do the interquartile ranges (IQRs) tell you about how the teams race ? Explain your thinking.
11. Now that you’ve analyzed the data, it’s time to make a decision.who do you think will win the strict meet describe how you think each team will do, explain your reasoning.
Red:
Yellow:
Blue:
here is your answer pls check it
Answer:
5. Use the race times to calculate the mean time for each team. Show your work. (3 points: 1 point for each team)
Red
45.6
Yellow
47
Blue
42.8
6. How do the three teams rank based on mean times? List them in order from fastest to slowest, and explain your ranking. (1 point)
From fastest to slowest the teams rank
Red
Yellow
Blue
7. How do the three teams rank based on median times? Explain your ranking. (1 point)
Based on median times the teams rank from fastest to slowest
Red and yellow tie for the first place
Blue
8. What statistic should you use if you wish to compare the spreads? Explain your reasoning. (1 point)
The interquartile range would be the best option for measuring the spread of these statistics.
Step-by-step explanation:
Sorry, this is the best I can do I need help with the rest of the questions.
Which relation is a function?
OA.
{(2, 3), (1, 5), (2, 7))
B. (-1, 5), (-2, 6), (-3, 7)
Oc. (11,9), (11, 5), (9, 3))
OD.
(3, 8), (0, 8), (3, -2)}
The residents of a village want to paint a sign that shows the elevation of their village relative to the sea. Their altimeter shows +2,100 feet. What should their signboard read?
A.
2,100 feet above sea level
B.
2,100 feet below sea level
C.
-2,100 feet above sea level
D.
+2,100 feet below sea level
Answer:
A.2,100 feet above sea level
Answer:
The answer would be A i took the test!
Step-by-step explanation:
3 x1/4 =
Please help me
Answer:
3/4
Step-by-step explanation:
please mark me as brainliest
Answer:
3/4
Step-by-step explanation:
You just multiply the whole number by the numerator.
HELLPPPPPPPP????? Plzzz
Answer: 2x + 4
Step-by-step explanation:
the first thing i did was look at the y-intercept, and compare that to the y-intercepts in the answers. luckily, all of the y-intercepts in the answers are different. the line passes through the y-axis, at positive 4, so we automatically know that's the answer
(8m-2)(3m+7)
Multiply
Answer:
24m^2+50m-14
Step-by-step explanation:
A punch recipe requires 2 cups of cranberry juice to make 3 gallons of punch. Using the same recipe, how many cups of cranberry juice are needed for 1 gallon of punch? Use / as a fraction bar.
pls help me as fast as u can
Answer:
1.5
Step-by-step explanation:
since 2 cups equals 3 gallons you can divide 3 by 2 and get 1.5. so there are 1.5 cups per gallon hope it helps
XY = Y Z
2x = 5x-12
- 3x = -12
How do I solve ?
Answer:
Step-by-step explanation:
Well basically if you cancelled out y from both sides. You will find out x=z
-3x= -12
x=4
Thus z=4
Help please easy 8th grade math!!!❤️❤️❤️❤️❤️❤️❤️❤️❤️The ages of Moe, Larry, and Curly are consecutive odd numbers, where Moe is the youngest and Curly is the
oldest. The sum of the ages of Moe and Larry equals Curly's age in 5 years. Find the ages of all three
stooges.
Moe, 3 Larry, 1
Step-by-step explanation:
y = 1/6x + 8
Identify the y intercept?
Answer:
(0,8)
Step-by-step explanation:
sarah the cheetah ran 100 meters at a speed of 16.8 meters per second. an olympian ran the 100 meter dash in 9.6 seconds . how much faster was sarah the cheetah's speed.
Answer:
3.6477seconds
Step-by-step explanation:
Sarah the cheetah ran the 100 meters in 5.9523s. Subtract 5.9523 from 9.6
What is the function written in vertex form?
f(x) = 4(x + 6)2 + 10
f(x) = 4(x + 6)2 – 26
f(x) = 4(x + 6)2 – 134
f(x) = 4(x + 6)2 + 154
Answer:
(C) f(x) = 4(x + 6)2 – 134
Step-by-step explanation:
edge 2022
Kylie drove 406 miles in 7 hours. If she continued at the same rate, how far would she travel in 19 hours?
Answer:
1,102
Step-by-step explanation
406/7=56 (unit rate)
56*19=1102
Answer:
The answer is 1,102
Step-by-step explanation:
First, we need to figure out how much per hour.
406 divided by 7 = 58
Now we multiply by the hours
58 x 19 = 1,102
#LearnWithBrainly
(5x²-7)(5x²+7)
Help me
Answer:
[tex]25 {x}^{4 } - 49[/tex]
