Step-by-step explanation:
y-15=x^2+10x
y-15+25=x^2+10x+25
y+10=(x+5)^2
A radio station conducts a survey. They want to
know if their listeners like a certain song. So
they announce on the air that listeners should
call one number on their phones if they like the
song and another number if they don't like it.
This is an example of:
A. A convenience sample
B. A self-selected sample
C. A systematic sample
D. A simple random sample
Answer:c
Step-by-step explanation:it is a two way system one number for yes and another for no
Answer:
the answer is b
Step-by-step explanation:
as to how many M&M's do you think you'd get if you chose 2 today, 4tomorrow, 8 the next day, and continued that pattern for 2 weeks.
Answer:
32,766
Step-by-step explanation:
you just keep multiplying by 2 14 times
Combine like terms 3b + 7c + 2 - b + 2c - 7
Answer:
2b + 9c - 5
Step-by-step explanation:
What is the value of x in a 45-45-90 triangle and the hypotenuse is 4?
9514 1404 393
Answer:
x = 2√2 ≈ 2.83
Step-by-step explanation:
The side length of an isosceles right triangle is 1/√2 times the hypotenuse length. If x is the side length, then ...
x = 4/√2 = 4(√2)/2
x = 2√2 ≈ 2.83
__
You have not specified the form of the answer. Sometimes an exact answer (2√2) is required. Sometimes the answer is required to be rounded to tenths or hundredths.
(WILL GIVE BRAINLIEST) Lamar plans to paint the net above before folding it into a
triangular prism. What is the surface area he will paint?
ANSWER CHOICES:
810cm^2
840cm^2
780cm^2
720cm^2
Answer:
B 840cm^2
Step-by-step explanation:
20x10 = 200
20x13 = 260
1/2(10)(12) = 60
200+260+260+60+60= 840
Based on the given information, which of these are true? Choose ALL that are correct
Could someone help me out please
Answer:
The coordinates are
(4,7)
(4,2)
What is the mean absolute deviation of team A’s scores? Show your calculation.
15,20,15 ,5,10,15,10,15,5,20.
The mean is 130.
Answer:
the mean is 13, i believe! good luck
Step-by-step explanation:
Select all of the true statements. A. 3 gallons = 18 pints B. 5 quarts = 20 cups C. 6 gallons = 30 quarts D. 2 pints = 32 fluid ounces E. 8 pints = 24 cups
Answer:
b
d
Step-by-step explanation:
1 gallon = 8 pint
3 x 8 = 24 pints
the first option is wrong
1 quart = 4 cups
5 x 4 = 20 cups
the second option is correct
1 gallon = 4 quarts
6 x 4 = 24
the third option is wrong
1 pint = 16 ounces
2 x 16 = 32 ounces
the fourth option is correct
1 pint = 2 cups
8 x 2 = 16 cups
the fifth option is wrong
I WILL GIVE BRAINLIEST.
(-a)n is negative
If a is a real number and n is a positive integer, which of the following represents all values of a and n such that the above
statement is true?
A. {a | a is positive) and {n | n is even}
B. {a | a is negative } and for {n| n is odd}
C. {a | a is negative} and {n | n is even}
D. {a | a is positive} and {n | n is odd}
Answer:
(-a)n is negative number, and since you did not provide a clear first option, I will assume the answer is none of the above. However, the accurate answer is C
Step-by-step explanation:
Guided Practice
Write an equation of the direct variation that includes the point (–8, 10).
A.
y= −4/5x
B.
y= 5/4x
C.
y= −5/4x
Answer:
C.
y= −5/4x
Step-by-step explanation:
Write an equation of the direct variation that includes the given point. (-8, 10)
1
first divide y by x to find the constant
2
Then write the equation using that constant. The constant can be written as a fraction or a decimal.
RESULT
Harmony left her dad’s store to go home at twenty to seven in the evening. Forty minutes later, she was home. What time was it when she arrived home?
Answer:
8:00 in the morning .....
Answer:
7:20 pm
Step-by-step explanation:
the phrase "twenty to seven in the evening" implies that is twenty minutes before 7:00 pm, meaning the current time was 6:40 pm.
Adding the 40 minutes it took Harmony to get home, the time would have been 7:20 pm
An online retailer has two warehouses, M and N, where customers' orders are packaged and shipped. The number of orders per day for warehouse M has a mean of 1,417.31 and a standard deviation of 67.54. The mean number of orders per day is 1,505.39 for warehouse N with a standard deviation of 67.70. Explain how the number of orders per day for warehouse M compare to the number of order per day for warehouse
A The number of orders per day for warehouse N is less on average than the number of orders per day for warehouse M. The standard deviation for the number of orders per day in warehouse N is greater than the standard deviation in warehouse M.
BThe number of orders per day for warehouse N is greater on average than the number of orders per day for warehouse M. The standard deviation for the number of orders per day in warehouse N is about the same as in warehouse M.
C The number of orders per day for warehouse M is about the same on average to the number of orders per day for warehouse N. The standard deviation for the number of orders per day in warehouse M is greater than the standard deviation for warehouse N.
D The number of orders per day for warehouse M is greater on average than the number of orders per day for warehouse N. The standard deviation for the number of orders per day in warehouse N is about the same as in warehouse M.
Answer:
B. The number of orders per day for warehouse N is greater on average than the number of orders per day for warehouse M. The standard deviation for the number of orders per day in warehouse N is about the same as in warehouse M.
Step-by-step explanation:
Wearhouse M has an average of 1,417.31 orders shipped per day, and Warehouse N has an average of 1,505.39 packages shipped per day. meaning that Wearhouse N has a greater mean (or average) compared to Wearhouse M.
Wearhouse M has a standard deviation (The safety net of how much the average can change) of 67.54 and Wearhouse N has a standard deviation of 67.70 which means that these are practically the same number.
Javad had a mix of yellow and red jellybeans as shown on the
graph. If there are 40 total jellybeans in his bag, how many are
red?
8
7
6
5
Red Jellybeans,
4
3
2
1
0
0
05
1
15
2
25
3
35
Yellow Jellybeans,
A.) 12
B.) 28
C.) 21
D.) 30
Answer;
Step-by-step explaination you should count 4,3,2,1,5,1,2,3the answer is 21
A restaurant used 5 pounds of ground beef to make one dozen hamburger. At this rate,how many pounds of ground are needed to make 144 hamburger?
can someone please help me
Answer: its c
Step-by-step explanation:
A number is 11 less than 3 times another number. The sum of the numbers
is 25. What are the two numbers?
Can you please send the work too
Step-by-step explanation:
this is simple use it and enjoy
Step-by-step explanation:
Let x be the first number
Let y be the 2nd number
given,
[tex]x = 3y - 11 \\ x - 3y = - 11[/tex]
as equation 1
and
[tex]x + y = 25[/tex]
as equation 2.
Now we will use elimination method to solve for simultaneous equations.
We will use equation 1 - equation 2 to eliminate x to solve for y.
[tex]x - x - 3y - y = - 11 - 25 \\ - 4y = - 36 \\ y = - 36 \div - 4 \\ = 9[/tex]
Substitute y into equation 2.
[tex]x + 9 = 25 \\ x = 25 - 9 \\ = 16[/tex]
The numbers are 9 and 16.
If the sum of the measures of the interior angles of a polygon is 1980 degrees, how many sides does it have? I need an explanation to this!
Answer:
It has 13 sides.
Step-by-step explanation:
The equation for total interior angle is x = 180(n - 2)
fill it out and solve
1980 = 180(n - 2)
1980 = 180n - 360
2340 = 180n
n = 13
What is the domain of the graph below?
Answer:
-1 < x < 5
Step-by-step explanation:
Domain is left to right, so look at the x-axis.
The farthest it can go left is -1
The farthest it can go right is 5
what shape would be made if you cut a rectangular pyramid diagonally?
Answer:
You would get a trapezoid shape.
Step-by-step explanation:
helpp nowww i will give branliest
Answer:
Z
Step-by-step explanation:
Y axis is the line thats up and down
Answer: Z
Step-by-step explanation: pls if im correct give me brainliest, if not correct give it to some one else
find the circumference of the circle round your answer to the nearest hundredth
Can someone please help me with this questions The points H,I,J and K all lie on the same line segment, in that order, such that the ratio of HI:IJ:JK is equal to 2:2:3. If HK=49, find IJ.
Answer:
IJ = 14Step-by-step explanation:
If the point HIJK all lies on the same line, then HI + IJ + JK = HK
2 + 2 + 3 = HK
HK = 7
Since the total length is HK
IJ = ratio of IJ/Total ratio * HK
IJ = 2/7 * 49
IJ = 2 * 7
IJ = 14
Hence the length of IJ is 14
More help :3 please and thnx
Answer:
a. there's a lot of options but here are a few: 1 and 5, 5 and 6, 2 and 1, 2 and 6
b. also a lot of options but here are a few: 1 and 6, 5 and 2, 3 and 8, 4 and 7
Step-by-step explanation:
supplementary angles are two angles that add up to 180 degrees, so essentially two angles that, combined, are equal to a straight line.
vertical angles are angles that are opposite each other when two lines cross.
Please answer correctly! I will Mark you as Brainleist!
your answer should be 9.8
Answer:
9.8cm³
Step-by-step explanation:
71.54cm³÷7.3cm³=9.8cm³
hope this helps
plz can i get brainliest:)
Is this relation a function?
Answer:
but where is the relation
You have a bag that contains 7 red marbles and 5 blue marbles. You randomly choose one of the marbles. Without replacing the first marble, you choose a second marble. Find the probability of these dependent events. Simplify as needed. Choosing a red marble and then a blue marble
Answer:
Step-by-step explanation:
12 marbles in total. The possibility of pulling out a red marble is going to be 7/12. Since you would then take the marble out, you'll have 11 marbles left. After that, it'll be 5/11.
alegbra 2 pls help ill give brainliest
Answer:
it's 1/a3b2 it's C basically
Step-by-step explanation:
I don't know what's equivalent to it but ik the answer
Find the volume of this cone.
Round to the nearest tenth.
7in
= 4in
Answer:
117.3 in^3
Step-by-step explanation:
Volume of cone=π(r^2)h/3=π·42·7/3≈117.3 in^3
Answer:
117.3in³
Step-by-step explanation:
πr²[tex]\frac{h}{3}[/tex]
3.14x4²x[tex]\frac{7}{3}[/tex]= 117.29
117.29 to nearest 10th= 117.3in³
Use the diagram to answer, given that line LM is a common tangent to circle P and circle Q. Leave answers in simplified radical when necessary. (Please let me know if the first blank is correct and answer the second one.)
Answer:
PL = 9
PN = 5√5
Step-by-step explanation:
8/12 = 6/PL
8PL = 72
PL = 9
PN² = 10² + 5² = 100 + 25 = 125
PN = √125 = 5√5