Answer:
b is 15.
Step-by-step explanation:
Trust me on this, The answer could only be 15 when solving for b. Hopefully that helps.
The answer is 15 because that is what it is.
If YX=3x-4 and MO=9x-20, then MO=? {Diagram not necessarily drawn to scale.} *
Answer:
Step-by-step explanation:
I assume that XY is midsegment of a triangle, then MO = 2 XY
9x - 20 = 2( 3x - 4 )
9x - 20 = 6x - 8
3x = 12
x = 4
MO = 9(4) - 20 = 16 units
Type the correct answer in each box. Use numerals instead of words.
Consider this system of linear equations.
-5x + 2y =
-6
-2x + 3y = 24
The solution to this system is (
).
Answer:
x = 6
y = 12
Step-by-step explanation:
bonsoir pouvez vous m'aidez
Answer:
Treatment for HIV/AIDS involves taking highly effective medicines called antiretroviral therapy (ART) that work to control the virus [1][2]. ART involves taking a combination of HIV medicines (called an HIV regimen) to suppress the virus and stop the progression of the disease [1]. The goal of treatment is to reduce the amount of HIV in the body and keep it at a low, undetectable level to help prevent further damage to the immune system and reduce the risk of transmitting HIV to others.
Which units measure the same basic quantities A) miles and liters. B) gallons and kilograms C) ounces and centimeters. D)meters and feet
Answer:
D) Meters and feet
Step-by-step explanation:
Meters and feet both measure the same basic quantity of distance.
The options in the other answer choices do not measure the same quantities.
For example, in A, miles measure distance while liters measure volume.
So, D is correct because both meters and feet measure distance.
16
Select the correct answer.
Which of the following graphs shows the solution set for the inequality below?
Ix+21+7>10
OA HH
OB. H
5
1 0 1 2 3
0 1
2 3 4
10
5 6
The solution set includes all real numbers less than -5, and all real numbers greater than 1, but does not include -5 or 1 themselves.
Option D is the correct answer.
We have,
We need to isolate the absolute value |x + 2| on one side of the inequality.
We subtract 7 from both sides.
|x + 2| > 3
Next, we can split this inequality into two separate inequalities, one for when the expression inside the absolute value is positive, and one for when it is negative:
x + 2 > 3
or
- (x + 2) > 3
Solving for x in the first inequality.
x > 1
Solving for x in the second inequality.
-x - 2 > 3
Adding 2 to both sides and multiplying by -1.
x < -5
So the solution set for the inequality |x + 2| + 7 > 10 is the set of all x-values that satisfy either x > 1 or x < -5.
Using interval notation.
(-∞, -5) U (1, ∞)
Thus,
The solution set includes all real numbers less than -5, and all real numbers greater than 1, but does not include -5 or 1 themselves.
Learn more about inequalities here:
https://brainly.com/question/20383699
#SPJ1
which is not true??????
Answer:
Option C is false
It is true that the square of both 10 and -10 is 100 but you can still obtain 100 by squaring 5\(\sqrt{4}\) so the third option is incorrect
The toco toucan, the largest member of the toucan family, possesses the largest beak relative to body size of all birds. This exaggerated feature has received various interpretations, such as being a refined adaptation for feeding. However, the large surface area may also be an important mechanism for radiating heat (and hence cooling the bird) as outdoor temperature increases. Here are data for beak heat loss, as a percent of total body heat loss, at various temperatures in degrees Celsius:
Temperature (degrees Celsius) 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Percent heat loss from beak 35 36 38 28 41 43 55 46 39 54 45 58 60 56 62 67
a. The equation of the least-squares regression line for predicting beak heat loss, as a percent of total body heat loss from all sources, from temperature is: _____ (Use decimal notation. Give your answer to four decimal places.)
b. Use the equation to predict (
±
0.01) beak heat loss, as a percent of total body heat loss from all sources, at a temperature of 25 degrees Celsius.
c. What percent (
±
0.01) of the variation in beak heat loss is explained by the straight-line relationship with temperature?
d. Find the correlation r (
±
0.001) between beak heat loss and temperature.
Answer:
Kindly check explanation
Step-by-step explanation:
Given the data:
Temperature (degrees Celsius) : 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Percent heat loss from beak : 35 36 38 28 41 43 55 46 39 54 45 58 60 56 62 67
Using an online regression calculator ; the regression equation obtained is :
ŷ = 2.0927X + 0.6029
X = independent variable
Y = predicted variable
2.0927 = slope
0.6029 = intercept
B.) temperature = 25
ŷ = 2.0927(25) + 0.6029
= 52.9204
C.) the explained variance is the value of the coefficient of determination (R²) which is the square of the correlation Coefficient
0.8785² = 0.7718
D.) the correlation Coefficient r is 0.8785 using the Coefficient of regression calculator
(x-5)(x+1)=x-5 3(x+1) 3 For what values of x are the two expressions equal ?
Answer:
x=-77+5√ 231 x=-77-5√231
I got this answer for x and the both equations are equal
simplify √([2m5z6]/[ xy])
The simplified form of √([2m5z6]/[xy]) is (√2m√5z√6) / (√x√y).
To simplify the expression √([2m5z6]/[xy]), we can break it down step by step:
Simplify the numerator:
√(2m5z6) = √(2) * √(m) * √(5) * √(z) * √(6)
= √2m√5z√6
Simplify the denominator:
√(xy) = √(x) * √(y)
Combine the numerator and denominator:
√([2m5z6]/[xy]) = (√2m√5z√6) / (√x√y)
Thus, the simplified form of √([2m5z6]/[xy]) is (√2m√5z√6) / (√x√y).
For such more questions on simplified form
https://brainly.com/question/28323654
#SPJ8
determine the range of the following graph
The range of the graphed function in this problem is given as follows:
[-9, 9].
How to obtain the domain and range of a function?The domain of a function is defined as the set containing all the values assumed by the independent variable x of the function, which are also all the input values assumed by the function.The range of a function is defined as the set containing all the values assumed by the dependent variable y of the function, which are also all the output values assumed by the function.The values of y in this function are between -9 and 9, inclusive, hence the range of the function is given as follows:
[-9, 9].
Learn more about domain and range at https://brainly.com/question/26098895
#SPJ1
Can someone please help me on this table?
Answer:
Step-by-step explanation:
Given expression which gives the distance is 16t².
Here, t = time or duration
For t = 20 seconds,
16t² = 16(20)²
= 6400 feet
For t = 21 seconds,
16t² = 16(21)²
= 7056 feet
For t = 22 seconds,
16t² = 16(22)²
= 7744 feet
For t = 23 seconds,
16t² = 16(23)²
= 8464 feet
Therefore, complete table will be,
t 20 21 22 23
h 6400 7056 7744 8464
19. Describe the graph of a proportional relationship.
The graph of a proportional relationship can be described as a graph that always starts at point zero and is always a straight line graph.
What is a straight line graph?A straight line graph is defined as the type of graph that is also called a linear graph which shows a relationship between two or more quantities that uses a graphical form of representation.
There are some characteristics that shows that a graph is of proportional relationship which include the following:
The graph always starts from zeroThe graph must be a straight line graphLearn more about graph here:
https://brainly.com/question/25184007
#SPJ1
what is the instantaneous rate of change of y=x^3-4x^2-4 at x=4 answer options:1816
Find out the derivative of the given function
so
we have
y=x^3-4x^2-4
y'=3x^2-8x
Evaluate at x=4
y'=3(4)^2-8(4)
y'=48-32
y'=16
therefore
the answer is 16Solve (x+1)2 =13/4 using the square root property
Answer:
Starting with the equation:
(x + 1)^2 = 13/4
We can use the square root property, which states that if a^2 = b, then a is equal to the positive or negative square root of b.
Taking the square root of both sides, we get:
x + 1 = ±√(13/4)
Simplifying under the radical:
x + 1 = ±(√13)/2
Now we can solve for x by subtracting 1 from both sides:
x = -1 ± (√13)/2
Therefore, the solutions to the equation are:
x = -1 + (√13)/2 or x = -1 - (√13)/2
Step-by-step explanation:
What is 1+57327392393629323
Answer:
57327392393629324
Step-by-step explanation:
PLEASE HELP ASAP!!!
Which of the following statements have the same result? Explain each step in solving each one.
1. f(2) when f(x) = 4x + 2
II. (2) when f(x) = 2x-4/5
III. 2y + 11 = 3y + 1
10 points)
Answer:
1.)10 2.)0 3.)10
Step-by-step explanation:
1.) 4 (2) = 8 + 2 = 10
2.) 2(2) - 4/5 = 0
3.)2y + 11/-11 = +3y/-3y +1
2y - 3y = 1 - 11
-1y/-1 = -10/-1 = 10
There are 50 roses in a tray. There is at least 1 red rose among any 24 randomly selected roses, and there is 1 white rose among any 28
randomly selected roses. How many white roses are there? QUICK PLS
There are 50 roses in a tray. The probability of white roses is there is 0.022.
We have given that,
There are 50 roses in a tray.
There is at least 1 red rose among any 24 randomly selected roses,
and there is 1 white rose among any 28
randomly selected roses.
So the probability of a red rose is 1/24
The Probability of a white rose is 1/28.
What is the probability?The formula to calculate the probability of an event is as follows. Probability(Event) = Favorable Outcomes/Total Outcomes.
TOTAL roses= 50
\(P(A)=(1/24)\)
\(P(B)=1/28=0.035\)
\(P(AUB)=1/50\)
\(P(A$\cap$ B)=1/24+1/28-1/50\)
\(175+150-84/4200\)
\(241/4200=0.057\)
So Probability of white is
\(P(W)=0.057-0.035\)
\(P(W)=0.022\)
Therefore, The probability of white roses is there is 0.022.
To learn more about the probability visit:
https://brainly.com/question/25870256
#SPJ1
A family is driving 1,036 miles to visit the Blue Ridge Parkway. If they travel at an average of 56 miles per hour, how long will it take to get there?
Answer:
18.5 hours will take
Step-by-step explanation:
determine whether the following procedure results in a binomial distribution or a distribution that can be treated as binomial (by applying the 5% guideline for cumbersome calculations). If it is not binomial and cannot be treated as binomial, identify at least one requirement that is not satisfied.
Treating 20 bald men with a special shampoo and recording how they say their scalp feels
Choose the correct answer below.
A. It is binomial or can be treated as binomial.
B. It is not binomial because the probability of success does not remain the same in all trials.
C. It is not binomial because there are more than two possible outcomes.
D. It is not binomial because there are more than two possible outcomes and the trials are not independent.
The given procedure results as not binomial and cannot be treated as binomial. It is not binomial because the probability of success does not remain the same in all trials. The correct answer is option B.
What is binomial distribution?Binomial distribution compiles the number of trials, or observations when each trial has the same probability of attaining one particular value. Binomial distribution controls the probability of observing a specified number of successful outcomes in a specified number of trials.
In a binomial distribution, the probability of getting a success have to remain the same for the trials we are investigating. For example, when tossing a coin, the probability of flipping a coin is half or 0.5 for every trial we conduct, because there are only two possible outcomes.
Learn more about binomial distribution at: https://brainly.com/question/14565246
#SPJ4
Solve the equation for all values of x in simplest form (x + 3)^2 = -16
Answer:
x = -7 or x = 1
Step-by-step explanation:
Given expression:
(x + 3)² = -16
Problem;
Solve for x;
Solution:
To solve for x; we use the factorization method;
Take -16 to the left of the equation;
(x + 3)² = -16
(x + 3)² + 16 = 0
(x+ 3)² + 4² = 0
if x² + y² = (x + y)(x - y)
So;
(x + 3 + 4) (x + 3 - 4) = 0
(x + 7)(x - 1) = 0
x + 7 = 0 or x - 1 = 0
x = -7 or x = 1
Find the percent of change. round to the nearest tenth of a percent if necessary
60 to 240
Answer: 75%
Step-by-step explanation:
First: work out the difference (decrease) between the two numbers you are comparing.
Decrease = Original Number - New Number
Then: divide the decrease by the original number and multiply the answer by 100.
% Decrease = Decrease ÷ Original Number × 100
Decrease =240- 60
Decrease = 180
180 /240=0.75 * 100 = 75%
The percent of decrease = 75%
please help me out with this question! i appreciate it :))
Answer:
144,000
Step-by-step explanation:
you multiply 18,000 by 8 since its after one year and you get 144,000.
1. Write a polynomial of degree 3 with zeros
x = 3,x= -4, and x = 5.
The polynomial of degree 3 with zeros at x = 3, x = -4, and x = 5 is P(x) = x^3 - 4x^2 - 17x + 60.
To construct a polynomial of degree 3 with zeros at x = 3, x = -4, and x = 5, we can use the fact that the polynomial can be written as a product of linear factors corresponding to each zero.
The factor corresponding to x = 3 is (x - 3).
The factor corresponding to x = -4 is (x + 4).
The factor corresponding to x = 5 is (x - 5).
To obtain the polynomial, we multiply these factors together:
P(x) = (x - 3)(x + 4)(x - 5)
Expanding this expression gives us:
\(P(x) = (x^2 - 3x + 4x - 12)(x - 5)\)
\(= (x^2 + x - 12)(x - 5)\)
\(= x^3 - 5x^2 + x^2 - 5x - 12x + 60\)
\(= x^3 - 4x^2 - 17x + 60\).
For similar question on polynomial.
https://brainly.com/question/2833285
#SPJ11
The lengths of the sides of a triangle are in the extended ratio 4:7:10. The perimeter of the triangle is 105 cm. What are the lengths of the sides?
The lengths of the sides of the triangle in cm are
Answer:
20cm, 28cm, 40cm
Step-by-step explanation:
Let the shortest side be 4x, the middle side be 7x and the longest side be 10x.
4x + 7x + 10x = 105
21x = 105
x = 105 ÷ 21
x = 5
Shortest side (4x) = 5 × 4
Shortest side (4x) = 20
Middle side (7x) = 7 × 4
Middle side (7x) = 28
Longest side (10x) = 10 × 4
Longest side (10x) = 40
can I have help with the problem in the picture pls
The lifetime for a certain brand of widgets is normally distributed. A random sample of 25 widgets is taken and a sample mean lifetime of 520 hours with a standard deviation of 50 hours. Before taking the sample, researchers claimed that the mean lifetime of a widget was more than 500 hours. 1. null hypothesis:
2. the alternative hypothesis:
3. explain what test will be used and why?
Answer:
1. H0: u = 500
2. H1: u <500
3. One sample t test
Step-by-step explanation:
1. The null hypothesis in this question would be
H0: u = 500
2. The alternative hypothesis would be
H1: u < 500
3. The test that we are going to be using is the one sample t test. This test is used to test hypothesis. It would make a comparison of h0 to the mean of the sample. Now we are using this here because the sample standard deviation was given
243, 81, 27, 9, 3, 1
Which of the following is the next term in the geometric sequence show above?
A. \\\ -3
B. \\\\ -1
C. \ -1/3
D. \\\\\\\ 0
E. \\\\\\ 1/3
Answer:
E. 1/3
Step-by-step explanation:
In this sequence, the numbers are descending and are 1/3 of the previous number.
243 / 3 = 81
81 / 3 = 27
9 / 3 = 3
3 / 3 = 1
1 / 3 = 1 / 3 (the next term)
Sheldon needs to buy 3 gallons of ice cream for a family reunion. The table shows the prices for different sizes of two brands of ice cream.
Price of small size Price of large size
Cold Farms $2.50 for 1 pint $4.50 for 1 quart
Sweet Dreams $4.75 for 1 quart $10.50 for 1 gallon
Which size container of Cold Farm ice cream is the better deal for Sheldon? Complete the explanation to justify your answer.
24 pints of Cold Farm ice cream cost $
, and 12 quarts of Cold Farm ice cream cost $
. The
(select)
size container is the better deal for Sheldon.
To determine the better deal for Sheldon, we need to compare the cost per gallon of the different container sizes for Cold Farm ice cream.
One gallon is equal to 4 quarts, or 8 pints. Therefore, we can calculate the cost of 3 gallons of Cold Farm ice cream as follows:
3 gallons = 12 quarts
3 gallons = 24 pints
Now, let's calculate the cost of buying 24 pints of Cold Farm ice cream:
$2.50 per pint x 24 pints = $60
And the cost of buying 12 quarts of Cold Farm ice cream:
$4.50 per quart x 12 quarts = $54
Comparing the two, we can see that buying 12 quarts of Cold Farm ice cream is the better deal for Sheldon, as it will cost him $54, compared to $60 for 24 pints.
Therefore, the quart size container is the better deal for Sheldon.
It cost Joseph $21.90 to send 146 text messages. How many text messages did he send if he spent $6.45?
Answer:
43 messages
Step-by-step explanation:
Given:
146 messages = $21.90
x messages = $6.45
Finding x by cross-multiplication:
x = 146*6.45/21.90 = 43
Hope this helps! :)
According to a salad recipe each serving require 6 teaspoons of vegetable oil and 9 teaspoons of vinegar and 24 teaspoons of vegetable oil were used how many teaspoons of vinegar should be used
Therefore, if 24 teaspoons of vegetable oil were used, we would need 16 teaspoons of vinegar to make the recipe correctly.
According to a salad recipe, each serving requires 6 teaspoons of vegetable oil and 9 teaspoons of vinegar. If 24 teaspoons of vegetable oil were used, we can determine the amount of vinegar needed for the recipe to be correct as follows:
First, we must determine the ratio of vinegar to oil in the recipe. To do this, we divide the amount of vinegar needed per serving (9 teaspoons) by the amount of oil needed per serving (6 teaspoons):
9 ÷ 6 = 1.5
This means that for every 1.5 teaspoons of oil used, we need 1 teaspoon of vinegar. Next, we use this ratio to determine the amount of vinegar needed when 24 teaspoons of oil are used:
1.5 ÷ 1 = 1.5
(teaspoons of oil per 1 teaspoon of vinegar)
24 ÷ 1.5 = 16
(teaspoons of vinegar needed)
For such more question on vegetable oil
https://brainly.com/question/5412318
#SPJ8