Answer:
−2x3+x2−3x−15
Step-by-step explanation:
Simplify step-by-step.
−5x2−3x−7−2x3+6x2−8
=−5x2+−3x+−7+−2x3+6x2+−8
Combine Like Terms:
=−5x2+−3x+−7+−2x3+6x2+−8
=(−2x3)+(−5x2+6x2)+(−3x)+(−7+−8)
=−2x3+x2+−3x+−15
If there are 80 calories in 2/3 of an apple, How many calories are in 6 apples?
Answer:
Around 570 to 560.
Please help solve question 12 and through 14
( will give brianlst :))
Answer:
12. The slope is 2
The y-intercept is 5
13. The slope is 1
The y-intercept is 5
14. The slope is 0.99
The y-intercept is 10
Step-by-step explanation:
12. If you use the rise over run method you go up by 2 and over 1. If you put rise over run you get 2/1 and that is equal to 2. So, slope is 2. The y-intercept is where x=0. If you look you can see that when x is 0, y is equal to 5. Therefore, the y-intercept is 5.
13. The slope is 1 because if you use the slope formula you can use two points like (1,6) and (2,7) in it to find that the slope is 1. You can also see that both the x and y variables go up by 1 each time, so the slope has to be 1. Once again the y-intercept is where x equals 0, even though it isn't shown on the graph we can infer it. At 0 days, the length of the kudzu would be 5 (because 5 is one step less than 6, remember the slope is 1).
14. The slope would have to be 0.99 because each consecutive download is 99 cents. There is a base membership fee of $10 so that has to be the y-intercept.
I hope this helps!!
If you have any questions let me know!
- Kay :)
Vector you equals (-3,8), and vector v=(-14,6) match each vector operation with the magnitude of its resultant vector
drag the tiles to the boxes to form the correct pairs not all tiles will be used
Answer:
I hope this helps you
Step-by-step explanation:
The magnitude of given operations of vectors are found.
What are Vectors?Vectors are quantities which are having the independent properties of magnitude as well as direction.
Given that,
u = (-3, 8) and v = (-14, 6)
3u = (-9, 24) and 2v = (-28, 12)3u - 2v = (-9+28, 24-12) = (19, 12)
Magnitude of 3u - 2v = [tex]\sqrt{19^2+12^2}[/tex] = [tex]\sqrt{505}[/tex] units
2u = (-6, 16) and 3v = (-42, 18)2u - 3v = (36, -2)
Magnitude = [tex]\sqrt{36^2+(-2)^2}[/tex] = [tex]\sqrt{1300}[/tex] units
u = (-3, 8) and 4v = (-56, 24)u + 4v = (-59, 32)
Magnitude = [tex]\sqrt{(-59)^2+32^2}[/tex] = [tex]\sqrt{4505}[/tex] units
5u = (-15, 40) and v = (-14, 6)5u - v = (-1, 34)
Magnitude = [tex]\sqrt{1157}[/tex] units
7u = (-21, 56) and 2v = (-28, 12)7u - 2v = (7, 44)
Magnitude = [tex]\sqrt{1985}[/tex] units.
Hence the magnitude of vectors are found.
Learn more about Vectors here :
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Is -12.75 a rational number
this is what i need help with so please help
Answer:
The temperature farthest from zero is 5
Step-by-step explanation:
the reason for this is because it doesn't matter whether that temperature is negative or positive because all the question is asking is...."how far from zero"....and would -4 be farther from zero....or would 5 be farther from zero. How I know this is absolute value is always positive. And absolute value of -4....is 4.....and absolute value of 5....is 5.
And 5 is 1 temperature more away from zero than -4.
Answer:
5 is the farthest from 0
-4 is the coldest temperature
5 is the warmest temperature
Step-by-step explanation:
The farthest from 0 could be negative or positive. It's just whichever one has the greatest absalute value (if you know that term, if not...), whichever one you would put up more fingers to count to.
In this case, according to the number line, the farthest from 0 into the nagatives is -4, but the farthest from 0 in the positives is 5. This means that 5 is the farthest from 5 because 5 takes 5 of your fingers to count to, whule -4 (yes, even though it's negative) takes just 4 fingers. This is a good way to visualize it until you can wrap your head around it!
The coldest is the lowest number. In this case, it's below zero. Below zero means negatives. In this case, -4 is the lowest number.
The warmest is the highest number. In this case, it's above zero. That means it's a positive number. 5 is the highest number here.
Evaluate - 2 + (-6) where a = 6.05 and b=3.611.
-a + (-b) where a = 6.05 and b = 3.611
Plug the variables in, then solve the equation
It should look like this:
- (6.05) + (-3.611) = -6.05 - 3.661 = - (6.05 + 3.661)
Add them together then make it negative.
Georgina knows the inequality is true, but she cannot remember what number is in the denominator.
1/10 > 1/?
Which number could be the missing number?
O5
O8
O10
O12
Answer:
b or a
Step-by-step explanation:
it has to be b or a because it says 1/10 and 1/10 is greater then the missing answer and the other answers c and d are 10 and 12 b and a are 5 and 8
In parallelogram UVWX, U = 9x+15 and V = 6x+15. find W and X.
Answer:
[tex]W = 9x + 15[/tex] [tex]X = 6x + 15[/tex]
Step-by-step explanation:
Given
Shape: Parallelogram
[tex]U = 9x + 15[/tex]
[tex]V = 6x + 15[/tex]
Required
Determine W and X
Opposite sides of a parallelogram are equal.
So:
[tex]U =W[/tex] and [tex]V = X[/tex]
By substituting values of V and U in the above expressions, we have:
[tex]9x + 15 = W[/tex]
[tex]W = 9x + 15[/tex]
[tex]6x + 15 = X[/tex]
[tex]X = 6x + 15[/tex]
A student wants to determine if there is a difference in the pricing between two stores for health and beauty supplies. She recorded prices from both stores for each of 10 different products. Assuming that the conditions for conducting the test are satisfied, determine if there is a price difference between the two stores.
alpha = 0.05 level of significance.
Store 1 Store 2
Product A 5.92 5.85
Product B 7.53 7.93
Product C 3.75 3.98
Product D 1.81 1.71
Product E 1.71 1.96
Product F 2.86 2.58
Product G 4.79 4.74
Product H 3.18 3.69
Product I 3.02 2.87
Product J 3.77 3.68
Required:
a. Use technology to calculate the P-value.
b. Draw a conclusion based on the hypothesis test.
Answer:
The P-value is 0.04542 which is less than 0.05
Since the calculated value of t does not fall in the critical region so we accept H0 that there is no price difference between the two stores.
Step-by-step explanation:
Store 1 Store 2 Difference (Store 2-1) d²
Product A 5.92 5.85 -0.07 0.0049
Product B 7.53 7.93 0.4 0.16
Product C 3.75 3.98 0.23 0.0529
Product D 1.81 1.71 -0.1 0.01
Product E 1.71 1.96 0.25 0.0625
Product F 2.86 2.58 - 0.28 0 .0784
Product G 4.79 4.74 -0.05 0.0025
Product H 3.18 3.69 0.51 0.2601
Product I 3.02 2.87 - 0.15 0.0225
Product J 3.77 3.68 -0.09 0.0081
∑ 0.65 0.6619
1. The degrees of freedom = n-1= 10-1= 9
2. The significance level is 0.05
3.The test statistic is
t= d`/sd/√n
4. The critical region is ║t║≥ t (0.025,9) = 2.262
The null and alternate hypotheses is
H0 : ud= 0 against Ha: ud≠ 0 (two tailed test)
5. Calculations
d`= ∑di/n= 0.65/10= 0.065
Sd²= ∑(di-d`)²/n-1 = 1/n-1 [∑di²- (∑di)²n]
Sd²= 1/9[0.6619-(0.65)²/10] = [0.6619-0.4225/9]= 0.0266
Sd= 0.163
Therefore
t= d`/ sd/√n
t= 0.065/ 0.163/√10
t= 0.3987/3.1622=0.1261
6. Conclusion
Since the calculated value of t does not fall in the critical region so we accept H0 that there is no price difference between the two stores.
Now the P- value:
The P-value is the rejection region. In this test it is on both sides and would add up to be (2.262 + 2.262)/100= 4.542/100
The P-value is 0.04542 which is less than 0.05
Jamal runs the bouncy house at a festival. The bouncy house can hold a maximum of 1200 pounds at one time. He
estimates that adults weigh approximately 200 pounds and children under 16 weigh approximately 100 pounds. For 1
four-minute session of bounce time, Jamal charges adults $3 each and children $2 each. Jamal hopes to charge at least
$24 for each session.
A is twice as good a workman as B and together
they finish a piece of work in 18 days. In how
many days will A alone finish the work?
Answer:
vbnmnbv nbbnmbnmvbr
Step-by-step explanation:
$400 at 6.4 for 2 years
Answer:
wdymmmmmmmm????????
If a data plot has most of the data on the left side of the graph, and a tail to the right, what do we call it?
Answer:
Positively skewed distribution (or right-skewed).
What is the solution set to the system of equations?
x^2 + y^2 = 17
-3x^2 + y^2 = 9
Answer:
The correct answer is B
Step-by-step explanation:
6 x + = 0 what is x??
Answer:
Here are some answers
1. If you meant 6x = 0 then your answer is 0
2. If you meant 6 + x = 0 then your answer is -6
Which expressions are equivalent to this expression?
4x + 4
Select each correct answer.
2(2x + 2)
4(x +4)
x + 3x + 4
2x + 1 + 2x + 3
Answer:
x + 3x + 4
2(2x+2)
2x + 1 + 2x + 3
Step-by-step explanation:
Have a nice day!
Item #1
Item #2
2
Cheerios
$3.65
for 17 oz.
Fruit Loops
$2.88
for 13 oz.
Unit Price
Which is the better deal? (Circle One)
Item #1
Item #2
Answer:
i think item 1 is the better deal...
What is this? I don't understand this
Answer:
lollol
lol
lol
lol
lol
lol
lol
lol
The set of ordered pairs (1, 7), (3, 8), (3, 6), (6, 5), (2, 11), (1, 4) represents a relation. Is the relation a function?
Answer:
Step-by-step explanation:
This relation is not a function because the x value repeats. (3,8) and (3,6)
If you plot these points, they won't past the vertical line test
No, the given set of ordered pair do not represent a relation.
What is function?A function is defined as a relation between a set of inputs having one output each.
Given is a set of ordered pairs, (1, 7), (3, 8), (3, 6), (6, 5), (2, 11), (1, 4)
We see, in points (3, 8) and (3, 6), the value of x corresponds to two values of y, i.e. 8 and 6, which contradicts the definition of relation function.
Hence, we can say that given ordered pair do not show a relation.
For more references on functions, click;
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find the coordinates for the foci
Answer:
where is the question
Step-by-step explanation:
The altitude of an airplane is decreasing at a rate of 42 ft per second what is the change in altitude of the airplane over a. Of 22 seconds
Answer:
Over a 22 seconds, the altitude will be: 924 feet
Step-by-step explanation:
Let 'x' be the time in secondsLet 'y' be the altitudeAs the altitude of an airplane is decreasing at a rate of 42 ft per second.
Thus, the expression to find the altitude at x seconds is:
y = 42x
so at x = 1 sec, y = 42 feet
Now, putting x = 22 seconds to determine the altitude at 22 seconds
y = 42x
= 42(22)
= 924 feet
Thus, over a 22 seconds, the altitude will be: 924 feet
A television normally costs $500, but this week it is on sale for $350. By
what percent was the cost of the television reduced?
a physician orders cogentin 1 gm qam and 0.5mg qpm how many 0.5mg tablets are needed for a 1 month supply?
a.90
b.60
c.150
d.120
Answer:
a. 90
Step-by-step explanation:
I believe you meant 1 mg of Cogentin.
In medical practice, "qam" means every morning while "qpm" means "every afternoon/evening."
1 mg of Cogentin is equivalent to two 0.5 mg tablet.
0.5 mg x 2 = 1 mgThis means that the patient needs to take three 0.5 mg tablets per day, inclusive of one 0.5 mg qpm.
Let's solve.
3 tablets per day x 30 days = 90 tablets
A total of 90 tablets are needed for a 1-month supply.
Which number line shows the solution of -6x + 18 < 30? WILL GIVE BRAINLIEST PLEASE HELP
Answer:
C.
Step-by-step explanation:
Brainliest me pls
Have a nice day!
Answer:
d. x > -2
Step-by-step explanation:
okay lets simplify this equation
-6x + 18 < 30
first lets subtract 18 from both sides
-6x < 12
now divide both sides by -6
x < -2
important rule: when you multiply or divide an inequality by a negative number, you must flip the inequality sign!
x > -2
answer d matches this inequality
The ratio of the number of boys to the number of girls in the cast of a school play is 1:5. Which statement must describe the cast of the play?
Answer:
1 boy to every 5 girls are in the play i need the answers to give you the best answer i can
Step-by-step explanation:
choose the correct response
Answer:
f(2) = 9
Step-by-step explanation:
It's give in the question,
Two different functions are,
f(x) = 4x + 1
g(x) = -2x
Then we have to find the output value of function 'f' for the input value x = 2.
By substituting the value of x in the function 'f',
f(2) = 4(2) + 1
= 9
f(2) = 9
Extra Example 2
A 6-pound bag of cat food costs $12.84.
A 16-pound bag of cat food costs $33.92.
Which bag of cat food is the better buy?
Bag is the better buy; because
it costs per pound and bag
costs
per pound
Replace the line
with the correct
answers
Just check if these answers are right please.. Seriously check them one answer by another...
Please help, I will mark brainliest.
Answer:
Step-by-step explanation:
Total number of students who roller skated = 80
Number of students who roller skated with laser tag = 39
Number of students who roller skated with no laser tag = 80 - 39 = 41
Therefore, percentage of students who roller skated with no laser tag = [tex]\frac{41}{154}\times 100[/tex] = 27%
Since, number of students who played laser tag = 85
Percentage of students who played laser tag = [tex]\frac{85}{154}\times 100[/tex] = 55%
Total number of students who played no laser tag = 45% of 154 = 69
Number of students with no roller skates and no laser tag = 69 - 41 = 28
Percentage of students with no roller skates and no laser tag = [tex]\frac{28}{154}\times 100[/tex]
= 18%
Percentage of students who played with no rollers skates = (30 + 18)%
= 48%
Laser tag No laser tag Total
Roller skate 25% 27% 52%
No Roller skate 30% 18% 48%
Total 55% 45% 100%
THIS ONE TOO PLEASE SOLVE FASTTT
Answer:
probably 30 degrees sorry if im wrong