Answer:
-8x+21
Step-by-step explanation:
Use the distributive property.
Mariah is a manager of a fitness training center that serves a certain region. She is interested in the amount of water adult residents in her region consume on average per day. She conducts a survey, where she selects 645 adult residents from the region at random and asks each individual to track how much water, in fluid ounces he or she consumes on average per day Among the 645 in the sample, the average is approximately 62.7 fluid Ounces Explain whether the results of Mariah's survey could be extended to all the residents of the region (1 point)
A) The results of the survey could be extended to all residents of the region because Mariah's fitness training center serves the region that contains the population of interest.
B) The results of the survey cannot be extended to all residents of the region because Maria only selected adult residents of the region at random.
C) The results of the survey could be extended to all residents of the region because all of the individuals in Mariah's sample are residents of the region
D)The results of the survey could be extended because the adult residents in Mariah's sample are representative of al the residents of the region.
Based on the survey results, which is true about the t-shirts Mrs. Hanson should order?
Answer:
Crew neck is the most popular, so she should probably order that
Step-by-step explanation:
Answer:
Crew Neck t-shirts are most efficient
6. Which of the following statements below is correct?
A. Circumference is the result of adding diameter by pi.
B. Circumference is the result of dividing diameter by pi.
C. Circumference is the result of subtracting diameter by pi.
D. Circumference is the result of multiplying the diameter by pi.
d
.........................
Anna ate a cookie that was 142 calories. She wants to burn those calories during her workout. When she goes running she burns at a rate of 63 calories per mile. When she bikes she burns 240 calories in 3 miles. If she plans to travel 2 miles, should Anna run or bike to meet her goal? I want the answer and a detailed reason as to why u got that answer. first, one to get it correct is brainly.
Answer:
Bike
Step-by-step explanation:
Anna should go biking because when she runs it goes 63 calories per mile, and 63*2 is just 126 and that does not meet the goal of 142 calories. However, in biking if she goes 3 miles she burns 240 calories, so 240/3=80 so that means 80 calories a mile. 80*2 miles makes 160 which is more than enough calories burnt.
Answer:
Anna Should bike
Step-by-step explanation:
Run:
When she runs she only burns 63 calories in an hour, since she wants to travel 2 miles, multiply 63 by 2 which equals 124 calories per two hours. 124<142, so running wouldn't burn 142 calories.
Bike:
when she bikes, she burns 240 calories per every 3 miles. you have to find how many calories she burns in 1 mile first. To do this you divide 240 by 3. This equals 80 calories every mile. Because she wants to travel 2 miles, multiply 80 by 2 to get 160 calories burned every 2 miles. since 180>160 she should take the bike.
Jack has 35 sports cards. He gives 5 to his brother. Which number sentence can
Jack use to find how many cards he has left?
35 x 5 = 175
35 : 5 = 7
35 + 5 = 40
35 – 5 = 30
What is the value of x in the circle to the right?
9514 1404 393
Answer:
10 1/16 cm
Step-by-step explanation:
The Pythagorean theorem can be used.
(8 +x)² = x² +15²
64 +16x +x² = x² +225
16x = 161
x = 161/16 = 10 1/16 = 10.0625 . . . cm
HELP ASAP! Look at pic :,)
Answer:
E
Step-by-step explanation:
the chair can go in any time AFTER the bed, so let’s think bed first
then he wants to move the heavy stuff, then awkward.
so the dresser and desk are heavy, and the couch is awkward.
but the chair can go in at any time so E would make sense
PLEASE HELP ASAPPPP!!!!!
Answer:
see below
Step-by-step explanation: 5 20 15 39
coin 2 possibilities 1/2
three coins (1/2) × (1/2) × (1/2) = _________ or (1/2)³
A system of equations is shown on the graph below.
On a coordinate plane, 2 lines intersect at (negative 1, 2).
How many solutions does this system have?
no solutions
one unique solution
two solutions
an infinite number of solutions
Answer:
one unique solution
Step-by-step explanation:
one unique solution => (-1, 2)
Answer:
B
Step-by-step explanation:
Need help filling in the blanks
Answer:
translated up 5 units and stretch by the factor 4
GIVING BRAIN LIST
Hiroko wants to know how much money students in her school band typically spend on their instruments. She plans to survey a sample of the population. Will each approach result in a sample that is representative of the population? Explain Please! Thank You!
Answer the following 3 questions from a to c.
Thanks Again!
a. Surveying all of the flute players in the band
b. Surveying all band members whose first names start with J or M
c. Surveying two band members from each school in her city
Answer:
Option C would be better than the others.
Step-by-step explanation:
She wants to learn about band members from a sample of the population. Option a isn't enough because flute players aren't the only ones who should be surveyed, she needs to know about all band members. B isn't right, it isn't logical to just survey people with names starting with J or M. So, c would be just right since she's surveying 2 band members from each school so she would get information from a sample of the population and not just from her school.
10.
AABC is dilated by a scale factor of with the origin as the center
of dilation. Given A(-6, 4), B(0, -4), and C(2, -8), what would be
the x-coordinate of A'?
Record your answer and bubble the grid.
Plez help
Factor by grouping. 9c^3-12c^2+18c-24
Answer:
[tex]9c^3 - 12c^2 - 18c - 24= [3c^2 - 6][3c - 4][/tex]
Step-by-step explanation:
Given
[tex]9c^3 - 12c^2 - 18c - 24[/tex]
Required
Factor
Group into 2
[tex][9c^3 - 12c^2] - [18c + 24][/tex]
Factorize each group
[tex]3c^2[3c - 4] - 6[3c - 4][/tex]
Factor out 3c - 4
[tex][3c^2 - 6][3c - 4][/tex]
Hence:
[tex]9c^3 - 12c^2 - 18c - 24= [3c^2 - 6][3c - 4][/tex]
A and B are two events. Let P(A) = 0.3, P(B) = 0.9, and P(Aand B) = 0.24. Which statement is true?
Answer:
blue one (c), not independent because P(A|B) ≠ P(A)
Step-by-step explanation:
Two events are independent of each other if you can mulitply them to get their intersection
To find the conditonal probability of two independent events you can use the following idea/formula
P(A|B)= (P(A)*P(B))/P(B) which simplifies to P(A) (so the probability of A given B when A and B are independent of each other is just the probability of A)
Now with the numbers we're given let's find P(A|B)
.24/.9= .26666666666667
Because this is not equal to .3 (or P(A)) the answer must be the blue one
HELP PLZZ ill give u brainlest !!!
Hakeem owns seven less than 3/5
the number of DVDs that Manuel owns. Hakeem owns 20 DVDs. How many DVDs does Manuel own? Show your work.
Answer: 45 DVDs
Step-by-step explanation:
Assume that the number of DVDs owned by Manuel is x.
In comparison to Manuel therefore, the DVDs owned by Hakeem can be expressed as:
= 3/5 * x - 7
We know that Hakeem owns 20 DVDs so we can use this number to solve for x:
20 = 3/5x - 7
3/5x = 20 + 7
3/5x = 27
x = 27 ÷ 3/5
x = 27 * 5/3
x = 45 DVDs
URGENt! PLS HELP. DONT USE LINKS OR JOKE. SEND REAL ANSWER. ITS VOLUME.
Answer:
334
Step-by-step explanation:
40 points plz help if u can Which function has no Zeroes? Select all that apply.
(there are 2 correct answers )
y = csc(x) and y = sec(x)
==========================================================
Explanation:
The term "zeroes" in this case is the same as "roots" and "x intercepts". Any root is of the form (k, 0), where k is some real number. A root always occurs when y = 0.
Use GeoGebra, Desmos, or any graphing tool you prefer. If you graphed y = cos(x), you'll see that the curve crosses the x axis infinitely many times. Therefore, it has infinitely many roots. We can cross choice A off the list.
The same applies to...
y = cot(x)y = sin(x)y = tan(x)So we can rule out choices B, E and F.
Only choice C and D have graphs that do not have any x intercepts at all.
------------
If you're curious why csc doesn't have any roots, consider the fact that
csc(x) = 1/sin(x)
and ask yourself "when is that fraction equal to zero?". The answer is "never" because the numerator is always 1, and the denominator cannot be zero. If the denominator were zero, then we'd have a division by zero error. So that's why csc(x) can't ever be zero. The same applies to sec(x) as well.
sec(x) = 1/cos(x)
1. Melany bikes the 5 km to school in 10 minutes. What is her average speed?
Answer:
Your answer would be 30 km/h for her average pace.
Step-by-step explanation:
I filled out info for a pace calculator and this is what the average speed was. Hope this helps and have a nice day.
Mario builds a triangular table- help!!
Answer:
Step-by-step explanation:
question 1a) hey, so it would look like this for example:
question 1b) no, because they don't follow the rules of a 30-60-90 triangle (like the one shown below)
tell me if u have any questions
Marcia is traveling with her family in the car. If they traveled 240 miles in 4 hours, at what rate, or speed were they traveling? Use the formula d ÷ t, where d represents the distance and t represents the time.
80 miles per hour
236 miles per hour
40 miles per hour
60 miles per hour
Answer:
60 miles per hour
Step-by-step explanation:
240/4 = 60 miles per hour
Answer:
60 miles per hour
Step-by-step explanation:
In order to find the rate at which Marcia's family's' car is travelling, you would simply divide the total miles, which would be 240 or "d," by the time, which would be 4 hours or "t."
[tex]\frac{240}{4}[/tex] = 60So, Marcia's family's car is travelling at 60 miles per hour.
Hope this helps :)
Please solve this maths equation
Answer:
2
Step-by-step explanation:
Hello !
In order to add fractions...
*You must have a common denominator (remember the top is the numerator and the bottom is the denominator)
So...
1 1/2 + 1/2
Although both have a 2 at the bottom, you can't add these because 1 1/2 is a mixed number and 1/2 isn't. To add them, you have to turn 1 1/2 into an improper fraction. You do this by multiplying the denominator by the whole number and then adding that to the numerator.
So 1 1/2 is the same thing as 3/2.
Now, you can add straight across.
3/2 + 1/2 = 4/2
4/2 = 2
Your answer is : 2
I hope this helps, please let me know if you're confused or have any more questions and I'll be happy to help.
Have a wonderful night :)
what is 3 3/5 x (-8 1/3)?
Answer:
The answer is negative thirty
Answer:
The answer is -450/15 = -30
Step-by-step explanation:
3 3/5 and -8 1/3 are numbers in mixed fractions. For getting the answer, the numbers must be converted into improper fractions with the formula =
Quotient * Divisor + Remainder = Dividend
Therefore;
=> 3 3/5 = 3 * 5 + 3 = 18/5
=> -8 1/3 = -8 * 3 + 1 = -25/3
Now, we multiply the improper fractions.
=> 18/5 * (-25/3)
=> -450/15
=> -30 is the final answer
Hope this helps you!
Convert the time. Enter your answer in the box.
4 minutes 53 seconds =
seconds
Answer:
293 seconds
Step-by-step explanation:
60*4=240
240+53=293
Question 2 of 10
What is the slope of the line y = 3? Answer here.
______
Answer:
0
Step-by-step explanation:
The slope of a horizontal line will always be 0. In our given line, y will equal 3 at any point on the line. This means the line is horizontal, so the slope = 0.
I hope this helps ^^ Good luck ·ω·
Answer:
0
Step-by-step explanation:
Since, You have only given us that y=3.
The slope will be 0
and the y-intercept will be: (0,3)
x | y
0 | 3
1 | 3
A factory bottles 511 bottles of juice in 7 minutes. Find the factory's unit rate of bottles per minute.
A. 511 bottles/7 minutes
B. 73 minutes/1 bottle
C. 73 bottles/1 minute
D. 73:1
I am a 3-digit number divisible by 7, but not 2. The sum of my digits is 4. Hint it is not 121
Answer:
301
Step-by-step explanation:
3 + 0 + 1 = 4
301 / 7 = 43
301 / 2 = 105.5
Answer:
301
Step-by-step explanation:
301 divided by 7 = 43
301 is not divisible by 2
3 + 1 + 0 = 4
Hope this helps :)
Help please first person to answer it right gets Brainliest
Answer: Subtracted 9.
Step-by-step explanation: To solve equations such as these, you always do the opposite than whatever the term is. For example, in your equation, "13" and "x" are MULTIPLIED together, which is why it's divided. The 9 is subtracted, which means it would need to be added to the other side.
Always remember that these equations are like scales- each side needs to be equal.
I hope this helps!
In which of the expressions below will x = 3? Select all that apply.
A) 5.5x=22
B) 19x−12x+6=27
C) 15x5=9
D) 18−(x+6)=10
E) 2x3+6=60
Answer: b
Step-by-step explanation: 19 x 3 = 57 & 12 x 3= 36 so subtract 57 and 36 that’s going to give you 21 & 21 plus 6 is 27
Answer:
Its B
Step-by-step explanation:
Samantha Smith purchased a $50,000 policy for $1,050 per year. After ten years, what will be the ratio (percentage) of
cash value to premiums paid?
%
Ratio of cash value to premiums paid (to the nearest tenth)
Answer:
After 10 years the ratio will be 10500: 500000
Answer:
2.1%
Step-by-step explanation:
I converted the ration to a percent. (on g o o g l e)
Please Brainlyest
Pleaseeee helpppp meee
Answer:
try searching it
Step-by-step explanation:
Answer: 14:16 describes Rita’s class in terms of number of girls to number of boys.
14:30 describes her class in terms of number of girls to total number of students