Answer:
(i) 4r + 3p (ii) 3q - 2p when 3q > 2p (iii) 2y + 2/3 x [not sure what [3] means]
Step-by-step explanation:
So for part (i) 3 multiply p added to 4 times r = 3p + 4r
For part (ii) since subtraction can seem like a negative number you stipulate that 3q is greater than 2p so that is will hold true!
(iii) I'm not sure what the [3] means but just using the numbers [tex]\frac{2}{3}[/tex]x, since of means multiply and add 2y then you have 2y + [tex]\frac{2}{3}[/tex] x
i need the answer fast
Answer:
The quadratic equations and their solutions are;
9 ± √33 /4 = 2x² - 9x + 6.
4 ± √6 /2 = 2x² - 8x + 5.
9 ± √89 /4 = 2x² - 9x - 1.
4 ± √22 /2 = 2x² - 8x - 3.
Explanation:
Any quadratic equation of the form, ax² + bx + c = 0 can be solved using the formula x = -b ± √b² - 4ac / 2a. Here a, b, and c are the coefficients of the x², x, and the numeric term respectively.
We have to solve all of the five equations to be able to match the equations with their solutions.
2x² - 8x + 5, here a = 2, b = -8, c = 5. x = -b ± √b² - 4ac / 2a = -(-8) ± √(-8)² - 4(2)(5) / 2(2) = 8 ± √64 - 40/4. 24 can also be written as 4 × 6 and √4 = 2. So x = 8 ± 2√6 / 2×2= 4±√6/2.
2x² - 10x + 3, here a = 2, b = -10, c = 3. x =-b ± √b² - 4ac / 2a =-(-10) ± √(-10)² - 4(2)(3) / 2(4) = 10 ± √100 + 24/4. 124 can also be written as 4 × 31 and √4 = 2. So x = 10 ± 2√31 / 2×2 = 5 ± √31 /2.
2x² - 8x - 3, here a = 2, b = -8, c = -3. x = -b ± √b² - 4ac / 2a = -(-8) ± √(-8)² - 4(2)(-3) / 2(2) = 8 ± √64 + 24/4. 88 can also be written as 4 × 22 and √4 = 2. So x = 8 ± 2√22 / 2×2 = 4± √22/2.
2x² - 9x - 1, here a = 2, b = -9, c = -1. x = -b ± √b² - 4ac / 2a = -(-9) ± √(-9)² - 4(2)(-1) / 2(2) = 9 ± √81 + 8/4. x = 9 ± √89 / 4.
2x² - 9x + 6, here a = 2, b = -9, c = 6. x = -b ± √b² - 4ac / 2a = -(-9) ± √(-9)² - 4(2)(6) / 2(2) = 9 ± √81 - 48/4. x = 9 ± √33 / 4 .
Step-by-step explanation:
P + 7 ≤ 50
He can spend less than but no more than $50. So whatever he buys plus the 7 dollar admission can be equal to but not greater than 50.
The diameter of a circle is 3 m. What is the circle's circumference?
Answer:
C≈9.42m
Step-by-step explanation:
C=πd=π·3≈9.42478m
how do i rewriting 2 5/10
Answer: 11/2
Step-by-step explanation:
to rewrite as mixed number you multiply the whole number by the denominator and add that to the numerator and get 55/10, then simplify it to 11/2 easy. also for decimal its jus 5.5
The other form to write 2 5/10 is 52/10.
What is fraction?The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.
The number of parts into which the whole has been divided is shown by the denominator. It is positioned in the fraction's lower portion, below the fractional bar.How many sections of the fraction are displayed or chosen is shown in the numerator. It is positioned above the fractional bar in the upper portion of the fraction.We have mixed fraction as 2 5/10.
Now, to write the mixed fraction into normal we must follow:
Numerator = Divisor x Quotient+ Remainder
Here, Divisor= 10, Quotient = 2 and Remainder= 5
So, the Normal Fraction is
= ( 10 x 5 +2)/ 10
= 52/10
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(6x-1)°=(6(10)-1)° don’t know?
9514 1404 393
Answer:
x = 10
Step-by-step explanation:
You can compare parts of each expression to see that x in the left-side expression is replaced by 10 in the right-side expression.
x = 10
__
If you'd rather, you can work your way down to the same conclusion by undoing the operations that have been done to x.
(6x -1)° = (6(10) -1)° . . . . . . given
6x -1 = 6(10) -1 . . . . . . . . . divide both sides by °
6x = 6(10) . . . . . . . . . . . . add 1 to both sides
x = 10 . . . . . . . . . . . . . . . . divide both sides by 6
Miguel had 340 baseball cards. He sold some of his cards and now has 170 cards left. If p represents the percent
decrease in the number of cards in Miguel's collection, what equation can you use to solve for p, and what is p?
Answer:
340 - 170
340 p=50
Step-by-step explanation:
Answer:
the person above me is right!! i put it in on edg
Step-by-step explanation:
Tom and Katie are discussing the sequence: 22, 17, 12, 7, 2
Tom says the nth term rule is: -5n+17
Katie says the nth term rule is: 27-5n
A)Only Tom is correct
B)Only Katie is correct
C)They both are correct
D)Neither are correct
Answer:
B
Step-by-step explanation:
There is a common difference d between consecutive terms, that is
d = 17 - 22 = 12 - 17 = 7 - 12 = 2 - 7 = - 5
This indicates the sequence is arithmetic with n th term
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 22 and d = - 5, then
[tex]a_{n}[/tex] = 22 - 5(n - 1) = 22 - 5n + 5 = 27 - 5n → B
which of the following best describes the motion of the ball between 4 and 5 Seconds
Answer:
4
5 sec (onds)
i hope this helps :)
multiple choice plz help:) actually try too thanks
Answer:
3rd answer choice
Step-by-step explanation:
Any time you have a proportion, the two ratios have to match, so 32 and x+8 are the bases, so you need to length of the side of those bases, 20 is the length of the base for the 32, but notice how 5 is not the side for x+8, therefore, 20-5 = 15, so 15 is the side adjacent to the base x+8, and they are in the right order small side / big side = small base / big base
In ΔQRS, the measure of ∠S=90°, QR = 78 feet, and RS = 61 feet. Find the measure of ∠R to the nearest degree.
Answer: 38.551=39
cos
−1
(
78
61
)
=39
Answer:
39
Step-by-step explanation:
When Mei solved the system of equations below, she got the
solution x = 4, y = 2. Without solving the system, yourself, can you
tell her whether this solution is correct?
4x + 3y = 22
x - 2y = 0
No
yes
Both
Answer:
yes
yes is answer of this equation
Answer:
answer is yes
Step-by-step explanation:
(8x²+y⁰)(-10x³y²z) what is the answer ?
Simplify/Multipy/Find the product: −80x^5y^2z − 10x^3y^2z
81000 in standard form
Answer: 81000 x 10 0
Step-by-step explanation:
The zero is meant to be a small zero on top of the 10 like a degrees symbol btw
can someone do my iready please its due in 4 hours 3 ill give 20 points for it!!!!!! PLEASEEEE (*´◒`*)
Answer:
can I get free points? pleaaasee?
Answer:
Look down
Step-by-step explanation:
I don’t see any iready
If one event impacts the probability of a second event occurring, than which of the following is true?
The events are complements.
The events are dependent.
The events are independent.
Answer:
The events are dependent.
Step-by-step explanation:
Two events A and B are said to be independent if the fact that one event has occurred does not affect the probability that the other event will occur. If whether or not one event occurs does affect the probability that the other event will occur, then the two events are said to be dependent.
Hope it will help :)
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Answer:
with a stick
Step-by-step explanation:
Answer:
i have no clue
Step-by-step explanation: sorry
What is the area of the figure below?
Answer:
104
Explanation:
1. Split the figure by the line the larger portion creates.
2. Calculate the area of the left-hand side... 7 · 8 = 56cm squared.
3. You know that the total length of the figure is 15cm. You've already "used" 7cm of that. So... 15 - 7 = 8.
4. Now, we simply do 6 · 8 = 48. Almost there!
5. Finally, add the values of the left side and the right side (48 + 56 = 104)
6. YOUR ANSWER IS 104 cm squared.
A therapist wanted to determine if yoga or meditation is better for relieving stress. The therapist recruited 100 of her high-stress patients. Fifty of them were randomly assigned to take weekly yoga classes, and the other 50 were assigned weekly meditation classes. After one month, 30 of the 50 patients in the yoga group reported less stress, and 35 of the 50 patients in the meditation group reported less stress.
Based on the 95% confidence interval, (–0.29, 0.09), is there convincing evidence of a difference in the true proportions of patients experiencing stress relief in the yoga and meditation groups?
There is convincing evidence because the two sample proportions are different.
There is not convincing evidence because the interval contains 0.
There is not convincing evidence because the interval contains both negative and positive values for the true difference.
Answer: Choice B
There is not convincing evidence because the interval contains 0.
========================================================
Explanation:
The confidence interval is (-0.29, 0.09)
This is the same as writing -0.29 < p1-p1 < 0.09
The thing we're trying to estimate (p1-p2) is between -0.29 and 0.09
Because 0 is in this interval, it is possible that p1-p1 = 0 which leads to p1 = p2.
Therefore, it is possible that the population proportions are the same.
The question asks " is there convincing evidence of a difference in the true proportions", so the answer to this is "no, there isn't convincing evidence". We would need both endpoints of the confidence interval to either be positive together, or be negative together, for us to have convincing evidence that the population proportions are different.
There is not convincing evidence because the interval contains 0.
What is Confidence Interval?The mean of your estimate plus and minus the range of that estimate constitutes a confidence interval. Within a specific level of confidence, this is the range of values you anticipate your estimate to fall within if you repeat the test. In statistics, confidence is another word for probability.
We have, the confidence interval as (-0.29, 0.09)
and, the same as writing -0.29 < p1-p1 < 0.09
Now, as the interval is 0 then
p1 - p2 = 0
p1 = p2
There is a chance that the population ratios are identical.
So, there isn't convincing evidence.
For us to have strong evidence that the population proportions are different, the ends of the confidence interval must be either positive together or negative together.
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A shop owner increases some prices by 50%.
This is the same as:
choose one
multiplying the original price by 0.5, 1.5, 2.5 or 150?
The another way is same as;
Multiplying by 0.5 with original price.
Here,
A shop owner increases some prices by 50%.
We have to find another method to find same condition.
What is the percentage?
A relative value indicating hundredth parts of any quantity is called the percentage.
Now,
A shop owner increases some prices by 50%.
Let the original price is x.
Then, The increase value = x * 50% = x * 50/100 = 0.5x
Hence, To find the increase value we have to multiply by 0.5 with original price.
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Can someone help me with this
Answer:
c
Step-by-step explanation:If you never know an answer just pick c:)daily life advice
The average of six numbers is 4. If the average of two if those numbers is 2,what is the average of the other 4 numbers?
Answer: Average of other 4 numbers =5
Step-by-step explanation:
Sum of n numbers = Average of n numbers x n
Given: Average of 6 numbers =4
so sum of 6 numbers = 6x 4 = 24
Average of 2 numbers = 2
Sum of 2 numbers = 2 x 2 =4
Sum of rest of 4 numbers = sum of 6 numbers - Sum of 2 numbers
= 24-4
=20
Average of 4 numbers = [tex]\dfrac{20}{4}[/tex]
i.e. Average of 4 numbers =5
which congruence postulate is this? SAS, SSS, AAS, ASA, HL
Answer:
SAS
Step-by-step explanation:
helllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
Answer: 3 bags
Step-by-step explanation:
Since a bag has 8 buns, 3 bags would total 24 buns. 2 bags would be 16 buns which is not up to 20 buns. 3 bags is what she'll need as its the best option.
Find the equation of the line through the points (−5,86) and (95,16).
Answer:
y=-0.7x+82.5
Step-by-step explanation:
A shirt is on sale for $42 if this is 4/5 of the original price of the shirt what was the original price of the shirt
Answer:
$52.50
Step-by-step explanation:
42=4x/5
210=4x
x=52 50
i need help what is 1/3x-3?
Answer:
[tex]\frac{1}{3}x-3=\frac{x}{3}-3[/tex]
Step-by-step explanation:
[tex]\frac{1}{3}x-3\\\\\frac{1}{3}x = \frac{x}{3} \\\\Find\:L.C.M.\\\\=\frac{x}{3}-3[/tex]
2 (y-1) ≥8
please answer
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form:
y ≥ 5
Step-by-step explanation:
Distribute
2y - 2 = 8
+2. +2
2y/2 = 10/2
y = 5
mrs thomas wants to find the price charged for the same stereo speaker at different stores
hurry pls The school that Maria goes to is selling tickets to the annual talent show. On the first day of ticket sales the school sold 1 senior citizen ticket and 12 student tickets for a total of $51. The school took in $93 on the second day by selling 5 senior citizen tickets and 6 student tickets. What is the price each of one senior citizen ticket and one student ticket?
Answer:
Thx G
Step-by-step explanation:
Answer:
id.k the answer but.....
Step-by-step explanation:
thx for the free poin.ts!
Solve for x
Please help! I need a explanation so I can understand better
Answer:
The answer is - 5
Step-by-step explanation:
[tex]x + 55 + 45 + 85 = 180 \\ x + 185 = 180 \\ x = 180 - 185 \\ x = - 5[/tex]
I am a math teacher If you need any explanation you can communicate with me on Whats on this number 01557831028
A pool in the shape of a rectangular prism is being filled with water. The length and width of the pool is 24 feet and 15 feet. If the height of the water in the pool is 11/3 feet, what is the volume of the water in cubic feet?
Answer:
1320 cubic feet
Step-by-step explanation:
Given
[tex]Length = 24ft[/tex]
[tex]Width = 15ft[/tex]
[tex]Height = \frac{11}{3}ft[/tex] --- of water
Required
Determine the volume of the water?
Volume is calculated as:
[tex]Volume = Length * Width * Height[/tex]
[tex]Volume = 24 * 15* 11/3[/tex]
[tex]Volume = 1320[/tex]
Hence, the volume of the water is 1320 cubic feet