Which expressions are quadratic expressions? Check all that apply.
z2
2x + 7x – 10
2x2 + 9x – 7
500(0.25)t – 1
13x3 + 21x2 – 5
Answer:
2x + 7x – 10
2x2 + 9x – 7
Step-by-step explanation:
Can you guys help me with any questions to 7 or 8 or 9 or 10
YOU DONT HAVE TO DO ALL OF IT JUST PICK A NUMBER
IF you want to 7 or 8 or 9 or 10 thats fine
help meeeeee pleaseeeeeee
Can you help me? The question is in the picture
Answer: final balance is $-90
Step-by-step explanation:
37 - 90 = -53
-53 + 18 = -35
-35 - 55 = -90
Answer:
Im pretty sure its -$90
Step-by-step explanation:
It started with $37 and then a withdraw of $90 so subtract $37 by 90 so that will be -$55 then add $18 dollars which then will be -$37. Finally, a withdrawal of $55 so subract -$55 from -$37 and that will give you -$90.
Hope It was useful.
The circumference of a circle is 100.48 inches. What is the circle's diameter? Use 3.14 for .
pleaseeeeeeeee say me now please
Answer:
d = 32 inches
Step-by-step explanation:
C = 2 × 3.14 × r
100.48 = 2 × 3.14 × r
Now divide 100.48 by 2 and 3.14 to get the radius:
r = 16 inches
The radius is half of the diameter, so...
d = 32 inches
( I have a couple of questions and I don't want to make separate ones and waste points)
Q1. A large can of soup contains 19 fl. oz. A serving is about 8 oz. How many cans should you buy if you want to serve 7 people?
Q2. A container of strawberry ice cream holds 36 fl. oz. A container of chocolate ice cream holds 2 pt. Which one has more ice cream? How much more?
Q3. A day-care worker wants to give 15 children each 6 fl.oz. of milk. How many quarts of milk does she need?
Q4. This morning, the day-care supervisor bought 3 gal. of milk. the kids drank 2 gal. 3 c. How much milk is left for tomorrow?
Q5. Harriet bought 3 gal. 2 qt. of paint for her living room. She used 2 gal. 3 qt. How much paint is left over?
Q6. Jason's favorite punch takes a pint of raspberry sherbet. If he wants to make 1 1/2 times the recipe, how many fl. oz. of sherbet does he need?
Find the volume of the sphere to the nearest square unit. Use 3.14 for T.
2 in.
a. 17 in
b. 33 in.
c. 33.5 in.
d. 34 in.
given that there is one possible outlier. if the outlier was removed from the data set, how would it effect the measures of central tendency? {8, 73, 74, 75, 79, 85, 85, 92, 94}
(not links)
O Mean increases median decreases
O Mean decreases median increases
O Both mean and median increase
O Both mean and median decrease
Answer:
Some measures I believe you are talking about are mean, median, mode, and range.
Mean is the average of all values. This is found by adding up all numbers and dividing by the amount of numbers. Outliers greatly affect and "throw off" the mean, making it inaccurate at calculating the average without an outlier.
Example:
1, 2, 4, 6, 10
(1 + 2 + 4 + 6 + 10)/5 = mean = 4.6
1, 2, 4, 6
(1 + 2 + 4 + 6)/4 = mean = 3.25
Because of this, mean does change when adding and removing outliers, and is therefor not the answer.
Median is the middle of the data. This is found by ordering the values in the data set from least to greatest (or greatest to least, either one works) and finding the number in the center of all the values. If there were an outlier, the median wouldn't be skewed as the mean is by outliers, but it would change.
Example:
1, 2, 4, 6, 10 Median = 4
1, 2, 4, 6 Median = 3
So median is not the answer, because it is affected by adding and removing outliers.
Mode is the value in a data set that appears the most. Outliers are numbers that are significantly lower or higher than most or all of the other numbers in a data set. Because of this, there can't be more outliers than other numbers, so it is impossible for the mode to be an outlier.
Example:
1, 1, 1, 2, 3, 4, 4, 86 Mode = 1
1, 1, 1, 2, 3, 4, 4 Mode = 1
This means the mode is not affected by adding and removing outliers.
Mode is a possible answer, but let's take a look at range before coming to a conclusion.
Range is the spread of values in a data set. In other words, the difference between the highest and lowest value. A high range can signal a possible outlier is present.
Example:
1, 2, 4, 6, 10
10 - 1 = highest value - lowest value = range = 9
1, 2, 4, 6
6 - 1 = highest value - lowest value = range = 5
The range is certainly affected by outliers, so it is not the answer.
Out of mean, median, mode, and range, the answer to this question is mode.
If an outlier is removed, mode will not change.
Hope this helps!
Step-by-step explanation:
Use properties of exponents to complete the equivalent expression. (Take a look at the image).
Please help i need it for a test, don't mind the 2 points thing
Answer:
the answer can be anything greater then 1.35 but less then 1.4. so like 1.7
Step-by-step explanation:
Please HELP ME!
9 1/2 ÷ 3 7/10 = ?
A. 3 21/37
B. 3 5/7
C. 2 21/37
D. 2 5/7
Which choice is it? A, B. C, or D?
Answer:
C. 2 21/37
Step-by-step explanation:
Answer:C
Step-by-step explanation: :)
Aaron puts several cards face down on the table. He draws one card, records the result, and then places the card back on the table face down. The results of his experiment are shown below.
outcome frequency
10 4
jack 0
queen 3
king 2
ace 1
Based on the results, what is the probability of choosing a 10 or Jack from the cards?
Please help
A sign on the road says: “Speed limit, 60 mph.” Let s be the speed of a car. Write an inequality that matches the information on the sign. *
(I copied and pasted)
Answer:
60 in the inequality
Step-by-step explanation:
help NO LINKS OR I WILL REPORT
Answer:
#CarryOnLearning
the answer
Answer: um... where is the problem
Step-by-step explanation:
help please
Find the perimeter of this quarter circle
Answer:
6.28
Step-by-step explanation:
Nikola buys a bouquet of 888 sunflowers for $18
Answer:
2.25
Step-by-step explanation:
18/8 = 2.25
Answer
2.25/flower
Step-by-step explanation:
18 divided by 8 = 2.25
The table below shows the number of customers that come eat lunch at a local coffee shop each week.
Based on the information, how many customers should the coffee shop expect to serve during week 12?
A: 50
B: 60
C: 70
D: 80
pls, help me!
There are 10 pieces of paper numbered 1 through 10 that are put in a jar. How many of the pieces of paper have numbers on them that are greater than 6?
Answer:
4
Step-by-step explanation:
Because there are 10 pices and 4 of them are greater than 6
who ever gets this right will get a brainlest
Answer:
the answer is 8 percent
Step-by-step explanation:
5.52/6 is 92% accuracy
100%-92% is the percent error
8% error
Hi, pls answer asap I will give briniest and 5 points!!
the first two are example's!
Step-by-step explanation:
lo siento no puedo ablar ingles si pusieras a español te respondo
Answer:
10. 8 1/10
11. 5 1/4
12. 7 1/8
13. 4
14. 5 3/10
15. 4 1/3
16. 8 3/8
The diagram shows a track composed of a rectangle with a semicircle on each end. The area of the rectangle is 6,600 square meters. What is the perimeter of the track? Use 3.14 for pi
Answer:
The perimeter of the track is the two circumferences of the semicircles (when combined, they form one circle, so we can just find the circumference of the circle) added to the lengths of the rectangle (160 meters).
To find the circumference of the circle, we need to know the diameter.
Circumference of a circle: dπ or 2rπ, where d represents diameter and r represents radius
The diameter of the circle happens to be the same as the width of the rectangle. We know that the area of a rectangle is found by multiplying its length by its width. We know that the area is 14400 and that its length is 160.
Width: area divided by length
14400160=90
The diameter of the circle and the width of the rectangle is 90 meters.
Circumference:
90⋅π=90π→ If you are using an approximation such as 3.14 for π, multiply that by 90
Add 160⋅2 to the circumference since the lengths of the rectangle are also part of the perimeter.
160⋅2=320
90π+320
Answer link
Jessica had 3 times as many postcards as Antonio. After Jessica gave 30 postcards to her friend and Antonio received 15 more postcards from his friend, Antonio had 3/4 as many postcards as Jessica. How many postcards did they have altogether in the beginning?
PLS HELP. WILL GIVE BRAINLIEST. SHOW YOUR WORK TOO, PLS.
pls mark me as brainlest answer I will follow you
BRAINLIEST PLAAAAZZZZZZZZZZZZZ
Answer:5376
Step-by-step explanation:
just mutpliy 12x28x16 lxwxh and then you get your answer of 5376
Rectangle ABCD is graphed in the coordinate plane. The following are the vertices of the rectangle: A(0, 6) B(4, 6) C(4, 2) D(0, 2) Given these coordinates, what is the length of side CD of this rectangle?
Answer:
4
Step-by-step explanation:
For which of the figures can we apply Cavalieri's principle to show they have the same volume?
Which represents this expression in simplest form?
15(x^2)^3
_________
25(x^−1)^−3
What is the Independent variable and the Dependent variable?
Answer:
The independent variable is the number of rides, and the dependent variable is the amount of money spent.
Step-by-step explanation:
A rectangular prism is 3 units high, 2 units wide, and 5 units long. What is its surface area in square units? Explain or show your reasoning.
The figure below is made of 2 rectangular prisms.
What is the volume of this figure?
8 in
2 in
9 in
5 in
1 in
cubic in
Hello please help me here is the shape of you need to see it visually
Answer:
2in
Step-by-step explanation:
Which statement about △ABC is NOT true?
A)BC is the longest side because it is opposite the largest angle.
B)△ABC is an obtuse scalene triangle.
C)AB is the shortest side because it is opposite the smallest angle.
D)∠B measures 95° because the sum of the angles in a triangle is 180°