Answer:
a
Step-by-step explanation:
The vertex form of the equation of a parabola is y = (x + 5)2 + 49.
What is the standard form of the equation?
O A. y= x2 + 10x + 74
B. y= x2 + 5x +49
O c. y = x2 + 49x + 35
d
O D. y= 5x2 + 10x+ 74
SUBMIT
Answer:
A
Step-by-step explanation:
please help!!!!!!!!!!!!!!
Answer:
1/10
Step-by-step explanation:
I'm not good with explaining but I'm rlly good at math and all that I did was divide 1/2 by 5
Answer:
1/10
Step-by-step explanation:
1/2 divided by 5 is equal to 1/10.
whats the area of the triangle
Please its already overdue
Answer:
[tex]Area = 15in^2[/tex]
Step-by-step explanation:
Given
See attachment for triangle
Required
Determine the area
The attached shape is a triangle and the solution is:
[tex]Area = 0.5 * Base * Height[/tex]
So, we have:
[tex]Area = 0.5 * 10in * 3in[/tex]
[tex]Area = 15in^2[/tex]
Divide 14 4/10 by 5 9/16
Solve the simultaneous equations 3x²+ 2x = y²- y + 50, 2x = y +5.
Answer:
(x,y) = (4,3), (20,35)
Step-by-step explanation:
3x²+ 2x = y²- y + 50
2x = y +5
y=2x-5, sub into 3x²+ 2x = y²- y + 50
[tex]3x^2+2x=(2x-5)^2-(2x-5)+50\\3x^2+2x=4x^2-20x+25-2x+5+50\\0=x^2-24x+80\\x=20 ,4\\[/tex]
sub into y=2x-5
y= 35, 3
Which expression is equivalent to 3 - (-8)
Answer:
The believe answerrrr is 11
Answer:
11
Step-by-step explanation:
3 - (-8)
first add the minuses together to make a + sign
then you just add up
3 + 8 = 11
Enter the appropriate value to answer the question or solve the problem.
M-1/4=3/4 need to find m plz help
Answer:
M=1
Step-by-step explanation:
m-1/4=3/4 add 1/4 to both sides and you get m=1
Answer:
M = 1
Step-by-step explanation:
M-1/4=3/4
add 1/4 to both sides of the equation:
M - 1/4 + 1/4 = 3/4 + 1/4
simplify:
M = 1
What is the cost of buying 10 tickets if 4 tickets cost 122 dollars?
Answer:
$305
Step-by-step explanation:
4 tickets = $122 <-- divide by 4
1 ticket = $30.5 <-- multiply by 10
10 tickets = $305
Answer:
305
Step-by-step explanation:
122 +122=244
122 divided by 2=61
244+61=305
Harry took total of 27 quizzes over the course of 3 weeks
Answer:
Jesus Harry thats a lot of quizzes
Step-by-step explanation:
but each week he took 9 quizes if thats the question
14x2 –y2 +3x2 –y+2y2
Answer:
120
Step-by-step explanation:
Sue has $100 saved to buy concert tickets that go on sale in 8 weeks. She plans to save $15 every 2 weeks. Will Sue have enough money saved to buy 4 concert tickets that cost $50 each?
Answer:
she wont have enough money.
Step-by-step explanation:
she is saving money every 2 weeks. 8 divided by 2 is 4, so we'd have 15 x 4 which is 60. then we'd add it to 100, which would be 160, then divide it by 4, which would roughly come down to 40 dollars each, meaning we would not have enough money for 4 tickets
Answer:
she does not have enough she will need 40 dollars more
Step-by-step explanation:
3)
13 and 31 both are prime numbers. In both numbers, 1 and 3 are common. Now,
make four pairs of such prime numbers from 1 to 100.
13 and 31
17 and 71
37 and 73
79 and 97
hope my ans helps
be sure to follow me
stay safe ❣️
Alonzo, Alice and Juan again all got different answers when they solve another problem. This time, they were solving:
( − 48 ) ÷ ( − 6 )
Alonzo believes the answer is 8.
Alice believes the answer is -8.
Juan believes the answer is -1/8
Do you agree with any of their answers?
I need help ASAP. I will give brainliest
Answer:
the answer is 7
Step-by-step explanation:
the answer is 7 no doubt about that moth
[tex]e + \frac{1}{8} = \frac{5}{8\\}[/tex]
The diameters of bolts produced in a machine shop are normally distributed with a mean of 6.4 millimeters and a standard deviation of 0.06 millimeters. Find the two diameters that separate the top 5% and the bottom 5%. These diameters could serve as limits used to identify which bolts should be rejected. Round your answer to the nearest hundredth, if necessary.
Answer:
The bolts with diameter less than 5.57 millimeters and with diameter greater than 5.85 millimeters should be rejected.
Step-by-step explanation:
We have been given that the diameters of bolts produced in a machine shop are normally distributed with a mean of 5.71 millimeters and a standard deviation of 0.08 millimeters.
Let us find the sample score that corresponds to z-score of bottom 4%.
From normal distribution table we got z-score corresponding to bottom 4% is -1.75 and z-score corresponding to top 4% or data above 96% is 1.75.
Upon substituting these values in z-score formula we will get our sample scores (x) as:
Therefore, the bolts with diameters less than 5.57 millimeters should be rejected.
Now let us find sample score corresponding to z-score of 1.75 as upper limit.
Therefore, the bolts with diameters greater than 5.85 millimeters should be rejected
Answer:
6.30 millimeters and 6.50 millimeters.
Sophie earns $12.80 per hour babysitting. She has to repay a loan to her parents in the
amount of $100. After repaying the loan, she wants to have at least enough money to buy
herself a pair of sneakers costing $130.40. Write an inequality modeling the number of hours,
X, Sophie needs to work to have enough money to buy the sneakers.
Answer:
Sophie has to work 18 hours to buy the sneakers.
Step-by-step explanation:
Since Sophie earns $ 12.80 per hour babysitting, and she has to repay a loan to her parents in the amount of $ 100, and after repaying the loan, she wants to have at least enough money to buy herself a pair of sneakers costing $ 130.40, for write an inequality modeling the number of hours, X, Sophie needs to work to have enough money to buy the sneakers, the following mathematical reasoning must be carried out:
12.80X = 100 + 130.40
12.80X = 230.4
X = 230.4 / 12.8
X = 18
So Sophie has to work 18 hours to buy the sneakers.
Please help! I will mark you brainiest!!!!
Answer: x = 3
isolate x by adding 4 to each side
2x = 6
Divide by 2 to get x
x = 3
the number of days, d, that it will take to run a marketing campaign is given by d = 192/n where n is the number of people needed each day. alex’s company will take 32 days to run the campaign. shay’s company will take 24 days to run the campaign. shays company will have to use more people each day than alex’s company. how many more?
Answer:
2 more people each day.
Step-by-step explanation:
We are given the following relation:
[tex]d = \frac{192}{n}[/tex]
In which d is the number of days that will take to run a marketing campaign with n people.
Alex’s company will take 32 days to run the campaign.
So the number of people in his campaign is given by:
[tex]32 = \frac{192}{n}[/tex]
[tex]32n = 192[/tex]
[tex]n = \frac{192}{32}[/tex]
[tex]n = 6[/tex]
Shay’s company will take 24 days to run the campaign.
So the number of people in her campaign is given by:
[tex]24 = \frac{192}{n}[/tex]
[tex]24n = 192[/tex]
[tex]n = \frac{192}{24}[/tex]
[tex]n = 8[/tex]
Shays company will have to use more people each day than alex’s company. how many more?
8 - 6 = 2
If the product of two integers is zero, then which of the following MUST be true?
A) Both of the Integers are zero
B) At least one of the integers is zero
C) The sum of the two integers is zero
D) The difference of the two integers is zero
Answer:
B
Step-by-step explanation:
Anything times zero is zero, so any whole number can be the second one so long as the first is 0.
The sum doesnt have to equal zero because non zero numbers multiplied by zero still equal zero.
A school chorus has 60 sixth-grade students and 48 seventh-grade students. The music director wants to make groups of performers with the same combination of sixth and seventh-grade students in each group. She wants to form as many groups as possible. What is the largest number of groups that could be formed?
What is the value we should use for pi when inputting it into the calculator?
Answer: There is a pie symbol on the calculator or if there is no symbol put 3.14
Step-by-step explanation:
Answer:
3.14
Step-by-step explanation:
taught this in math class hope this helps
Garrett has a current checking account balance of $695. Over the next three days, he receives a direct deposit of $475.75 from his job, pays an annual online banking fee of $24, and makes purchases of $34.21 and $8.92. He then withdraws $60 from an ATM that charges a $3.50 usage fee.
What is Garrett's account balance at the end of the day period? Write your answer in numeric form, such as $1369.05.
Answer:
1040.12
Step-by-step explanation:
695.00
+475.75
=1,170.75
Subtract
24.00
34.21
8.92
60.00
3.50
= 130.63
695.00+475.75=1,170.75-130.63=1040.12
1) (x+y)² =
A. x²+2xy+y²
B. x²-2xy+y²
C.x²-2xy-y²
Answer:
a. x^2+2xy+y^2
Step-by-step explanation:
I hope this helps
Which of the following is NOT an irrational number?
Answer:
I'm gonna go with the first choice because it's rational.
Step-by-step explanation:
Answer:
pi is the answer
Step-by-step explanation:
x+2/3=6 what is x .................
Answer:
x=16/3
x=5 1/3
x=5,3333333.....
Step-by-step explanation:
x+2/3= 6
x= 6-2/3
x=16/3
x= 5 1/3
x=5,33333333333......
I hope this will help you
0.2) Sharad bought one quintal of onions for Rs 2000. Later he
sold them all at the rate of Rs 18 per kg. Did he make a profit
or incur a loss? How much was it?
Answer: Loss, 200 Rs
Step-by-step explanation:
Given
Sharad bought a quintal of onion i.e. [tex]1000\ kg[/tex] for [tex]Rs.\ 2000[/tex]
So, the cost price of onion is
[tex]\Rightarrow \dfrac{2000}{100}=20\ \text{Rs per kg}[/tex]
He sells it at [tex]18\ \text{Rs. per kg}[/tex]
Here, the Selling price is less than the cost price
So, he incurs a loss of [tex]2\ \text{Rs per kg}[/tex]
For a quintal it is
[tex]\Rightarrow 2\times 100=200\ \text{Rs}[/tex]
[tex]\Rightarrow \text{Loss }\ \%=\dfrac{C.P.-S.P.}{C.P.}\times 100\\\\\Rightarrow \text{Loss }\ \%=\dfrac{20-18}{20}\times 100=10\%[/tex]
pls help i beg Gimme the radius circumference and area
Answer:
Radius = 5.75
Circumference = 36.13
Step-by-step explanation:
Here we have the diameter, and the radius is half of the so 5.75. For the circumference, we can use the formula C=2πr
Carlos biked 24 mi and ran 6 mi.
What is the ratio of the distance Carlos ran to the distance he biked?
4 to 5
1 to 5
1 to 4
4 to 1
Answer:
Step-by-step explanation:
4 to 1
Answer:
4 to 1
Step-by-step explanation:
(c) Suppose that 20% of voters are in favor of certain legislation. A large number n of voters are polled and a relative frequency estimate fA(n) for the above proportion is obtained. Use central limit theorem to estimate how many voters should be polled in order that the probability is at least .95 that fA(n) differs from 0.20 by less than 0.02
Answer:
1537 voters should be polled.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
The margin of error is:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
95% confidence level
So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].
20% of voters are in favor of certain legislation.
This means that [tex]\pi = 0.2[/tex]
How many voters should be polled in order that the probability is at least .95 that fA(n) differs from 0.20 by less than 0.02
This is n for which M = 0.02. So
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]0.02 = 1.96\sqrt{\frac{0.2*0.8}{n}}[/tex]
[tex]0.02\sqrt{n} = 1.96\sqrt{0.2*0.98}[/tex]
[tex]\sqrt{n} = \frac{1.96\sqrt{0.2*0.98}}{0.02}[/tex]
[tex](\sqrt{n})^2 = (\frac{1.96\sqrt{0.2*0.98}}{0.02})^2[/tex]
[tex]n = 1536.6[/tex]
Rounding up
1537 voters should be polled.