Answers
Option B represents all of the possible values of x.
Related Questions
[tex]\sqrt 18- \sqrt 2[/tex]
Answers
√18 - √2
3 √2 - √2 = 2√2
Answer:
2√2
Step-by-step explanation:
18 factors down to 3 * 3 * 2
The rule for taking the square root of a number factored into primes is if they are in pairs, take one of the pairs out of the root sign and throw the other one away. Any odd number of primes always has one prime left under the root sign.
3√2 - √2
Root 2 is a common factor on either side of the minus sign.
√2*(3 -1)
√2 * 2
What multiplies to -26 and adds to -25
Answers
Answer:
1 and -26
Step-by-step explanation:
Consider the factors of 26 (because the two numbers have to multiply to -26). These are: 1 and 26, 2 and 13.
2 and 13 cannot be added or subtracted from one another to get -25, but 1 and 26 can, or rather 1 and -26.
A report about how American college students manage their finances includes data from a survey of college students. Each person in a representative sample of 793 college students was asked if they had one or more credit cards and if so, whether they paid their balance in full each month. There were 500 who paid in full each month. For this sample of 500 students, the sample mean credit card balance was reported to be $825. The sample standard deviation of the credit card balances for these 500 students was not reported, but for purposes of this exercise, suppose that it was $195. Is there convincing evidence that college students who pay their credit card balance in full each month have a mean balance that is lower than $907, the value reported for all college students with credit cards?
Required:
a. Carry out a hypothesis test using& significance level of 0.01.
b. State the appropriate null and alternative hypotheses.
Answers
Answer:
Following are the responses to the given question:
Step-by-step explanation:
Test statistic:
[tex]t=\frac{(825-905)}{\frac{205}{\sqrt{(500)}}}[/tex]
[tex]=\frac{(-80)}{\frac{205}{22.36}}\\\\=\frac{(-80)}{9.16}\\\\=-8.73[/tex]
Let the p-value=0
We reject H0 because of the p-value <0.01. We have evidence that college kids who pay their credit card bills in full per month have a mean balance of less than $905.
Please answer !!!!
25 points
Answers
Answer:acd
Step-by-step explanation:yw
If the triangles are similar, what is the value of x?
Answers
Answer:
[tex] 180 - 16 - 126 = 38\\ 13x = 180 - 16 - 38\\ 3x = 126 \\ 3x = 126 \\ x = \frac{126}{3} = 42[/tex]
Coresponding angles of similar triangle are congruent.
To find the missing angle of the triangle on the right you conplete the equation 180-126-16, which equals 38.
Since congruent angles of similar triangle are congruent, the leftmost angle on the triangle to the right is also 38.
After that you have to solve the equation:
180=16+38+3x.
180=54+3x
-54 -54
126=3x
/3 /3
42=x
Other than itself, which angle is congruent to
ECH?
Answers
Answer:
gcf
Step-by-step explanation:
What is the volume of the regular pyramid below?
Answers
Formula is V=lwh/3
V=9x9x8/3
=216
Solve the given formula for the indicated variable:
z = xy + 2ab for a.
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Answer:
If we solve for a
2ab=z–xy
a = z–xy/(2b)
x - 3x² + 4 = 0 find x value
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Glenn needs to cut pieces of ribbon that are each 1 meter long to make ribbon key chains.
If he has 9 pieces of ribbon that are each 1 dekameter long, how many 1−meter pieces of ribbon can he cut?
Answers
9514 1404 393
Answer:
90
Step-by-step explanation:
1 dekameter is 10 meters, so each of Glenn's 9 pieces of ribbon can be cut to make 10 1-meter pieces.
9 × 10 m = 90 m . . . . length of available ribbon
(90 m)/(1 m/piece) = 90 pieces
Glenn can cut 90 1-meter pieces from the ribbon he has.
REPOST PLEASE I NEED HELP I could really use some help with this guys:)................................................................................................................................................................................................................................................Groundhog's Day is on February 2nd each year. On this day, in Punxsatawney, Pennsylvania, thousands of onlookers watch to see if Phil, the groundhog, will cast a shadow. If he does, then six more weeks of winter are predicted. If he doesn't, then an early spring is predicted. Historically, Phil's prediction has only been correct about 40% of the time.
Using complete sentences, design a simulation to determine the probability that Phil's prediction will be correct at least two out of the next three years. Make sure to explain how you would use the simulation to determine the probability.
Answers
Answer:
Points
Step-by-step explanation:
Kyle started running when he was 2 miles from home. Every minute, he ran a distance away from home. The equation y
= 0.1x + 2 models the situation, where x is the number of minutes he has been running, and y is the distance Kyle is from
home in miles. Which statement about the equation is true?
Answers
Answer:
Kyle runs 0.1 miles every minute.
Step-by-step explanation:
The difference between an observational study and an experiment is that
O in an observational study, only one group is studied, and in an experiment, two groups are studied.
in an observational study, the researchers do not control treatment, and in an experiment, they do.
• in an experiment, cause-and-effect is analyzed, and in an observational study, it is not.
®
in an experiment, one group is studied over a short period of time, and in an observational study, the group is
studied over a longer period of time.
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Answer:
I think it's the last one! In an experiment, one group is studied over a short period of time---
The following playing cards are used in a game. What is the probability of not selecting a prime number?
1,2,3,4,5,6,7
Answers
Answer:
3/7
Step-by-step explanation:
1,2,3,4,5,6,7
The word problem is asking the PROBABILITY OF NOT SELECTING A PRIME NUMBER.
PROBABILITY: THE LIKELIHOOD OF AN EVENT.
There are 7 numbers in this data set. Of the seven numbers, four are prime numbers, three of them are not.
Therefore, the probability of not selecting a prime number is 3 in 7, or 3 out of 7 (3/7).
Classify the polynomial x3-x2-x+7
Quintic polynomial or
Cubic polynomial or
Quadratic trinomial
Answers
Helpppp meeeeeee asssapppp noooo rockyyyyyy
Answers
Answer:
12
Step-by-step explanation:
4y - 2x
= 4(7) - 2(8)
= 28 - 16
= 12
Of the 650 student at westmoreland junior high, 80% will attend the field trip. How many student will attend the field trip?
Answers
Answer:
520 students will attend
Step-by-step explanation: sorry forgot to explain. An easy way to do it is to multiply the number your using (650) x the percentage (80%) here's an example: 60% of 1,005 multiply 60 x 1005 = 603
603 is 60% of 1005. ;D
Answer: 520
Step-by-step explanation: A way to find even percentages (10%, 20%, etc) is to take 10% of the original number, in this case, it would be 65, and then multiply it by the first number in the percentage. In this case, it would be;
65 x 8 = 520
Hope this helps!
Helppppppppppppppppppppppppppppp
Answers
Answer:
57°
Step-by-step explanation:
The angles in a triangle add to 180. Let the missing angle be x.
x=180-90-33=57
Answer: 57 degrees
Step-by-step explanation:
Angles in a triangle add up to 180 degrees.
So:
180 - (90 + 33) = 57
Answer : 57 degrees
Solve 7.2 < x + 4.2 Graph the solution.
Answers
Answer: should be 3
Step-by-step explanation: math
Amy deposits S500 into an account that pays simple interest at a rate of 5% per year. How much Interest will she be paid in the first 4 years?
Answers
Answer:
She will be paid $100 in interest in the first 4 years.
Step-by-step explanation:
This is a simple interest problem.
The simple interest formula is given by:
[tex]E = P*I*t[/tex]
In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.
Amy deposits $500 into an account that pays simple interest at a rate of 5% per year.
This means that [tex]P = 500, I = 0.05[/tex]
How much Interest will she be paid in the first 4 years?
This is E when [tex]t = 4[/tex]. So
[tex]E = P*I*t = 500*0.05*4 = 100[/tex]
She will be paid $100 in interest in the first 4 years.
Write 9 × 9 × 9 × 9 × 9 × 9 using an exponent. Level 1-2
is it correct
Answers
Answer:
9^6
Step-by-step explanation:
there are six nines so its 9^6
Use the drop-down menus to explain how to name the ordered pair for Point A on the grid. First quadrant grid with point A at (2,4) labeled Follow the grid line from Point A down to the x-axis. The x-coordinate is . Next, follow the grid line from Point A to the y-axis. The y-coordinate is . The ordered pair is .
Answers
Answer:
Vertical, 2, horizontal, and (2,4).
Step-by-step explanation:
Follow the vertical grid line from Point A down to the x-axis. The x-coordinate is 2. Next, follow the horizontal grid line from Point A to the y-axis. The y-coordinate is 4. The ordered pair is (2,4).What is the answer to: 15 - the quotient of 50 and 10?
Answers
Answer:
10
Step-by-step explanation:
15 - 50/10
15 - 5
10
What is the area of this figure? 6 m 14 m 4 m 20 m 4 m 12 m 6 m
Answers
Answer:
what figure
Step-by-step explanation:
which one doesn't belong fractions answers 1/4 , 40% , 3/2 , or 1/6
Answers
Answer:
40%.
Step-by-step explanation:
-1/4, 3/2, and 1/6 are fractions, but 40% is not.
Jerissa is using her calculator. She needs to multiply 8.9 * 0.28,
but her decimal point key is not working. Explain how Jerissa could
solve the problem on the calculator without using the decimal point key.
Answers
Answer:
2.492
Step-by-step explanation:
Grasie is building bookshelves. She needs 36 screws for each bookshelf. Complete the table to show the ratio of screws to bookshelves. Enter a number in each box.
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4 : 144
6 : 216
10 : 360
Have a nice day! And please mark me brainliest TY
here is the explanation:
The ratik of bookshelves to screws is
1 : 36
That means that per bookshelf, there are 3 screws.
So if Gracie builds 4 bookshelves, multiply 36 by 4. The product will be yhe answer for the blank screws
And if Grasie needs 216 screws, DIVIDE 216 by 36. The quotient will be the answer for the blank bookshelves
Lastly, if Grasie will need to build 10 bookshelves, multiply 10 by 36. The product will be the answer for the blank screws
Help Im really bad at math! Help ASAP! Do not send me a link
Answers
HELP ME PLEASE!!! and can you explain ;) No links please
Answers
Answer:
(5x+2)(3x-1)-x^2+7x
15x^2-5x+6x-2
14x^2-6x-2
Step-by-step explanation:
just foil both and then subtract the smaller one from the other
For instance, if one package of cookies contains 20 cookies what would mean 2 packages contain
Answers
Answer:
2 packages will contain 40 cookies
Step-by-step explanation:
1 package of cookies: 20 cookies
2 packages of cookies: 20 x 2=40