Answer: Option D
(D) infinite number of solutions
Step-by-step explanation:
A coordinate grid is drawn over a postcard of Da Vinci's Mona Lisa. The postcard is a 1/4 dilation of the original painting. If the tip of Mona Lisa's nose on the postcard is at the point (−4, 2), what would be the coordinates of the tip of her nose in the preimage?
Answer:
Step-by-step explanation:
(-16,8) is your answer!
Point A, located at (5, -4) is reflected in the y-axis, resulting in the location of point A'. Which of the following statements is true?
Point A' is located at (-5,-4)
Point A' is located at (-5,4)
Point A is located at (4,5)
Point A' is located at (-4,5)
The correct answer is Point A' is located at (-5, -4).
When a point is reflected in the y-axis, its x-coordinate is negated and its y-coordinate remains the same. Therefore, the x-coordinate of point A changes from +5 to -5, and the y-coordinate remains -4. Hence, the coordinates of A' are (-5, -4).
The model shows the expression 20 + 16.
A model with 4 rows of 5 squares and 4 rows of 4 squares.
Which expression is equivalent to this sum?
4 (5) + 4
4 + 5 + 4
4 (5 + 4)
5 (4 + 4)
Answer:
4(5+4)
Step-by-step explanation:
20 + 16 = 36
Think of PEMDAS (In this scenario you have parenthesis and addition)
4(5+4) = 20 + 16
4 (9) = 36
36 = 36
While looking at the other options:
4 (5) + 4 = 24
4 + 5 + 4=13
5 (4 + 4)= 40
Answer:
4 (5 + 4)
Step-by-step explanation:
1. the model show 20 + 16 which = 36
2. the first example 4 (5) + 4 which equals 20 + 4 or 24.
3. the second example 4 + 5 + 4 which equals 9 + 4 or 13.
4. the third example 4 (5 + 4) , using order of operations, equals 4 x 9 and that equals 36.
5. the last examples 5 (4 + 4) is 5 x 8 which is 40.
That is why the third example is correct!
20 points to whoever gets these right!! <3
Answer:
1st one 8/20
Step-by-step explanation:
i was gone sick for this class and don’t know what the heck to do. I don’t need answers, just explanations on what to do.
(conversion factors and equivalent rates homework by the way)
Answer: conversion factor is just how much of it is in another unit
Step-by-step explanation:
for example, 5280 feet are in a mile so the original rate of 15 in a hour can be turned into the equation on the first image.
Original rate (15 miles) x conversion factor (5280 feet are in a mile)
So when you multiple get 79,200 which simple means, in one hour she will go 79,200 ft. This concept can be applied to other scenarios such as feet and meter, liters and gallons, miles and kilometers, all that’s necessary is to know the conversion rate. The conversion factor is simple how much of your term is in another, this may be confusing but imagine it like this how many feet are in a yard? The answer is 3 so the conversion factor is just 3ft:1yd
Michael has a bag of marbles. The frequency of selecting each color is recorded in the table below. Outcome Frequency Green 4 Black 6 Orange 5 Based on the given frequency, determine the experimental probability of selecting a black marble. 0.27 0.33 0.40 0.60
help asap if answer is correct and provided explanation i will give brainiest.
Reason:
6 black out of 4+6+5 = 15 total
6/15 = 0.40 is the experimental probability of selecting black.
Side note: The term "empirical probability" is the same as "experimental probability".
The experimental probability of selecting a black marble will be 0.40. The correct option is C.
What is probability?Probability is a number that indicates the likelihood of an event occurring. Probability is defined as the ratio of favourable outcomes to all outcomes.
Probability = Number of favourable outcomes / Number of samples
Given that Michael has a bag of marbles. The frequency of selecting each colour is recorded in the table below. Outcome Frequency Green 4 Black 6 Orange 5.
Number of favourable outcomes = 6
Number of samples = 4+6+5 = 15
Probability = Number of favourable outcomes / Number of samples
Probability = 6 / 15
Probability = 0.40
Therefore, the probability will be 0.40.
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mega question with brainliest
Answer:
c:-$12
Step-by-step explanation:
34+30=64.
then 64 - 76=-12
Answer:
-12
Step-by-step explanation:
You start off with $34 so +34
Then you spend $76 so -76
Then you deposit $30 so +30
There are several ways to go about this but i find the easiest way is to add the positives first.
We're going to say 34+30=64
Next we subtract 76 from 64= -12
You go about this in the same way you would if it didn't have a negative sign in front of it. Then since the 76 is the larger number you add the negative sign.
-76
- 64
-----------
-12
ANSWER BOTH OF THEM PLEASE!!!
A. A car corporation produced 580 fewer cars this month than last.
Write a signed number to represent this month's change in production.
B. Debra's test score average increased by 4 points this semester.
Write a signed number to represent this change in average.
FREE FREE BRAINLIEST IF ANSWER IS CORRECT Sonny substituted 5 for x in the proportion Start Fraction 16 over x EndFraction = StartFraction 48 over 15 EndFraction and cross multiplied to get 2
Answer:
B
Step-by-step explanation:
How would i do this?
Answer:
5/6 or 0.83333333
Step-by-step explanation:
Im not good at thisssss
Answer:
131.88 206 20 621.72 64 12 9580 :)
Pls help (I attached an image that explains the question)
Answer:
B
Step-by-step explanation:
If xx and y vary directly and y is 21 when x is 7, find y when x is 5
Answer:
y = 15
Step-by-step explanation:
We need to solve for k
y = x
21 = 7k Divide both sides by 7 to solve for k
3 = k
y = xk
y = 5(3)
y = 15
Answer: y = 15
Step-by-step explanation:
4 liters of 2% milk contains 8% cholesterol. A container of skim milk contains 2% cholesterol. How many liters of skim milk need to be added to the 4 liters of 2% milk to create a mixture with 4% cholesterol?
To solve this problem, we can set up an equation based on the amount of cholesterol in the mixture.
Let's assume that x liters of skim milk need to be added to the 4 liters of 2% milk.
The amount of cholesterol in the 4 liters of 2% milk is 8% of 4 liters, which can be calculated as (8/100) * 4 = 0.32 liters of cholesterol.
The amount of cholesterol in the x liters of skim milk is 2% of x liters, which can be calculated as (2/100) * x = 0.02x liters of cholesterol.
The total amount of cholesterol in the mixture is the sum of the cholesterol in the 2% milk and the skim milk, which should be equal to 4% of the total volume of the mixture. So, we have:
0.32 + 0.02x = (4/100) * (4 + x)
Simplifying the equation:
0.32 + 0.02x = 0.04(4 + x)
0.32 + 0.02x = 0.16 + 0.04x
0.02x - 0.04x = 0.16 - 0.32
-0.02x = -0.16
Dividing both sides by -0.02:
x = (-0.16) / (-0.02)
x = 8
Therefore, 8 liters of skim milk need to be added to the 4 liters of 2% milk to create a mixture with 4% cholesterol.
To solve this problem, we can use the following equation:
4+x4×8+x×2=4
This equation represents the ratio of the total cholesterol to the total volume of the mixture. The numerator is the sum of the cholesterol from the 2% milk and the skim milk, and the denominator is the sum of the volumes of the 2% milk and the skim milk. The equation is equal to 4 because we want the mixture to have 4% cholesterol.
To find x, we can simplify and solve for x:
4+x32+2x=4
32+2x=16+4x
16=2x
x=8
Therefore, we need to add 8 liters of skim milk to the 4 liters of 2% milk to create a mixture with 4% cholesterol.
When the temperature on Earth drops abruptly, the land cools down faster than the sea.
Which property of water allows water to be resistant to sudden temperature changes?
Choose 1 answer:
(Choice A) Adhesion
(Choice B) High specific heat capacity
(Choice C) Surface tension
(Choice D) Density
Answer:
High specific heat capacity
Step-by-step explanation:
Specific high heat capacity causes rapid or sudden temperature changes
Answer:
High specific heat capacity
Step-by-step explanation: :/
Multiply.
(−2.1)⋅(−1.4)
Answer:
(-2.1) x (-1.4) = 2.94
Step-by-step explanation:
May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 10 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!
1. A straight fence is constructed from posts 6 inches wide and separated by lengths of chain 5 feet long. A certain fence begins and ends with a post. If there are 7 posts, what is the total length of the fence?
Answer:
72
Step-by-step explanation:
First, we will multiply the number of posts (7) by the posts' width (6) to get 42.
Since there is a chain between each post, there are 6 chains.
Multiplying the number of chains (6) by the chains' length (5), we get 30.
The question asks us to find the total length of the fence, so we add 42 and 30 and get 72.
Hope this helps!
Can you find each missing table value and type the correct code? Please remember to type in ALL CAPS with no spaces
Answer:
1: 50 or F
2: 21 or D
3: 15.50 or C
4: 2.5 or H
Step-by-step explanation:
Use a number line to order the numbers from least to greatest.
Assign the numbers to the number line in the following order:
2.15=2.15
220%=2.2
9/4=2.25
*2.15* is easy enough to place as it is already in decimal form. However, the other 2 options need to be converted to decimals in order to be placed. We have the fraction 9/4 and percentage 220%. 9/4 can either be simply divided on a calculator or turned into the mixed fraction 2 and 1/4, which is *2.25*. Finally, we know that converting a decimal to a percentage we multiply the decimal by 100. Therefore, to convert a percentage to a decimal we divide 100 or move the decimal to the left 2 places. With this conversion rule, 220% transforms to *2.2* and we have the third and final number for our number line. Arranging these three numbers from least to greatest:
2.15, 2.2, 2.25
what is an equation of the line that passes through the points (4,−3) and (2,−4)
Answer:
This is easy, y=3.5x-3
Step-by-step explanation:
just do y2-y1/x2-x1, then you get slope which is M, is the formula, y=mx+b, then for B you pick one of the coordinates and fill in the formula, for example, i picked (2,-4), so i filled in -4=3.5(2)+b, then after multiplying 3.5*2=7, then 7-7 and 4-7, you get -3=b, so the full equation is y=3.5x+-3
I hope this is correct
Derek wants to practice playing the guitar for 9 hours in 8 days. Which of the following statements match the given ratio for guitar practice?
A.
32 hours in 36 days
B.
30 hours in 28 days
C.
27 hours in 24 days
D.
36 hours in 26 days
Answer:
The answer is C.
Reasoning:
No other numbers match up but D)
When you divide 24 by 8 you get 3 and 3 times 9 is 27
Answer:
D.Reasoning
Step-by-step explanation:
Please see photo attached. I don't understand
please write a function for the points (1/3,0) (-2 3/4,0) and (0,-5) and explain the steps.
thank you!
The function for the points are y = -15x - 5
How to determine the functionFrom the information given, we have that;
The points are;
(1/3,0) (-2 3/4,0) and (0,-5)
Using the point-slope form of a linear equation, we have;
y - y₁ = m(x - x₁)
Such that;
m is the slope of the liney - y₁ and (x - x₁) are the pointsUsing (1/3, 0) and (0, -5), we have that the slope is;
m = (0 - (-5))/0 -1/3)
expand the bracket
= 5 / (-1/3)
= -15
Now, take any of the given points and substitute the values
Using (1/3, 0), we get;
y - 0 = -15(x - 1/3).
y = -15x - 5.
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The function for the points solved by (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)
We have given the points:
(1/3,0) (-2 3/4,0) and (0,-5)
Using the formula of linear equation
\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)
Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)
that is 1/3 = \(a\), 0 = \(a_{1}\) and
0 = \(b\), -5 = \(b_{1}\)
\(x\) refers to the slope of line (take any variable)
Now for finding the value of \(x\),
\(x=a-a_{1}/b-b_{1}\)
inserting the values,
\(x=[0-[-5]]/[0-1/3]\\x= -15\)
Substitute the value of \(x\) in the equation
\(a-0=-15[b-1/3]\)
By simplifying the equation, we get
\(a=-15b-5\)
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Please help me and I will give the brainliest. Answer correct plsssss help me
What is the value of the expression with base 3 and exponent 4?
1. 81
2. 7
3. 12
4. 64
Answer:
81
Step-by-step explanation:
\(3^{4} = 3*3*3*3 = 81\)
The value of the expression with base 3 and exponent 4 is, 81.
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
We have to given that;
The expression is,
⇒ 3⁴
Now, We can simplify as;
⇒ 3⁴
⇒ 3 × 3 × 3 × 3
⇒ 81
Thus, The value of the expression with base 3 and exponent 4 is, 81.
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-Which expression represents the phrase "twenty-three less than a number"? (Think about this one!)
A n ÷ 23
B 23 ÷ n
C 23 - n
D n - 23
Twice a number is between -3 and 12, inclusive. Find all numbers.
Answer:
4,2,6 those are all the numbers between 3 abd 12 have a nice day
How much interest is earned on $2,078.24 at 0.6% for eight years?
$1096.99
$109.96
$199.76
$99.76
Answer:
109.96
Step-by-step explanation:
I got about 109 so it rounds to 109.96
Jin’s mother estimates there is a half gallon of fruit punch remaining in the container. There is actually 72 ounces of fruit punch in the container. What is the percent error of Jin’s mother’s estimate, rounded to the nearest tenth?
needed help
Step-by-step explanation:
6.28% because of the sealing
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