Answer:
Step-by-step explanation:
(x-7)^2
(x-7) ( x-7)
[tex]x^{2}[/tex] -14x + 49
it's a perfect square function
How does the size of the product change from problem to problem?
What type of angles are 5 and 4
Answer:
show us a pic of the triangles
Step-by-step explanation:
Answer:
repost no pic
Step-by-step explanation:
Abigail invites her friends over for a pajama party. She bought 12 tubs of popcorn for her friends. Her brother, Aiden took away a few tubs of popcorn for his friends. If 5 tubs of popcorn remain, how many tubs did Abigail share with her friends?
Answer:
7 tubs
Step-by-step explanation:
aiden took "x" tubs
remaining tubs=5
12-x=5
x=12-5
x=7
Answer:
Step-by-step explanation:
FrEe PoInTs ThE sTrUgGlE iS rEaL bRo
which number is a solution of the inequality c>5? Use the number line to help answer the question.
Answer:
Step-by-step explanation:
https://brainly.com/question/22157981
PLEASE HELP *I would also appreciate if you could show how you do the problem* I WILL MARK YOU BRAINIEST*
Answer:
x=2
Step-by-step explanation:
x=2 i believe. i apologize if incorrect
Answer:
I don’t know how to solve the equation with algebra tiles but here’s the answer without using them
4x-3=5
Add 3 to both sides of the equation to balance it out
4x=8
Divide both sides by 4 to get
x=2
Lez earns $9.28 per hour at her part -time job. She works 5.5 hours on saturday. How much money does lex earn?
Answer:
51.04 ı think
Step-by-step explanation:
Answer:
she makes 51.04
Step-by-step explanation:
What is 106% of = $7.95
Answer:
8.427
Step-by-step explanation:
7.95/x=100/106
(7.95/x)*x=(100/106)*x
7.95=0.94339622641509*x
(0.94339622641509) to get x
7.95/0.94339622641509=x
8.427=x
x=8.427
106% of 7.95=8.427
Cherries are $3.99 a pound at the local market. If you buy 6 pounds and pay 8% tax, how much is the total for the cherries?
Answer:
24.02 can i get brainliest
Step-by-step explanation:
200 is between what two consecutive whole
numbers?
A.
14 and 15
B.
15 and 16
C.
19 and 20
D.
39 and 40
E.
99 and 100
The price of a technology stock was $9.63 yesterday. Today, the price rose to $9.74. Find the percentage increase. Round your answer to the nearest tenth of a percent.
William went shopping for a new phone because of a sale. The store was offering a 15% discount. If the price on the tag was $41, what would be the price after the discount but before tax, to the nearest dollar and cent?
Answer: $34.85
Step-by-step explanation: $41 x 15%= 34.85 before tax
find the measurement of the question mark. please help image included.
9514 1404 393
Answer:
45°
Step-by-step explanation:
The base angles in any isosceles triangle are congruent.
? = 45°
__
The acute angles in any right triangle are complementary.
? = 90° -45° = 45°
__
However you decide to think about it, you get ? = 45°.
Can someone give me an example of substitution
Answer:
Substituton is like being a back up to anything and for anuone
Gavin invested $350 in an account paying an interest rate of 4.7% compounded continuously. Assuming no deposits or withdrawals are made, how long would it take, to the nearest tenth of a year, for the value of the account to reach $890?
Answer:
Gavin will have to invest his money for 20 years to reach that sum of money.
Step-by-step explanation:
Given that Gavin invested $ 350 in an account paying an interest rate of 4.7% compounded continuously, assuming no deposits or withdrawals are made, to determine how long would it take to the nearest tenth of a year for the value of the account to reach $ 890 se you must perform the following calculation:
890 = 350 x (1 + 0.047 / 365) ^ X x 365
X = 20
Thus, Gavin will have to invest his money for 20 years to reach that sum of money.
F)-5y=BY
y=
F) check
Answer:
y=b+5f
Step-by-step explanation:
I think that's the answer
is 0.23 or 2.3% greater?
Answer:
0.23
Step-by-step explanation:
If you convert 0.23 into a percent, it becomes 23%, which is more than 2.3%.
Hope that helps!
-Sabrina
Determine if the pairs of expressions below are always equivalent. Prove your answer
A. 4n + 12 and 4 (n +3)
B. m + m 3m and 3m + 2
C. 4x + 8y and 4 (x + 8y)
D. 3 (2t + 2 ) and ( t + 1 ) x 6
E. p + p and p + 7
T-shirts are 3 for $18. Tia bought 4 T-shirts. How much did she spend?
Answer:
24$ I think I multiplied 6 times 4
help me with this math quiestion its the picture below
Answer: 6 5/7
Step-by-step explanation:
A bag contains:
• 7 red marbles
• 5 blue marbles
.6 green marbles
• 3 black marbles
• 5 yellow marbles
A marble will be drawn from the bag and replaced 100
times. What is a reasonable prediction for
the number of times a red or yellow marble will be
drawn?
Answer:
5/7
Step-by-step explanation:
Three different methods for assembling a product were proposed by an industrial engineer. To investigate the number of units assembled correctly with each method, 30 employees were randomly selected and randomly assigned to the three proposed methods in such a way that each method was used by 10 workers. The number of units assembled correctly was recorded, and the analysis of variance procedure was applied to the resulting data set. The following results were obtained: SST = 10,800; SSTR = 4560.
1. Set up the ANOVA table for this problem (to 2 decimals, if necessary).
Source of Variation Sum of Squares Degrees of Freedom Mean Square F
Treatments
Error
Total
2. Use a= .05 to test for any significant difference in the means for the three assembly methods.
3. Calculate the value of the test statistic (to 2 decimals).
The p-value is:_______.
a. less than .01
b. between .01 and .025
c. between .025 and .05
d. between .05 and .10
e. greater than .10
4. What is your conclusion?
a. Not all means of the three assembly methods are equal
b. Cannot reject the assumption that the means of all three assembly methods are equal
Answer:
is an attachment
test statistic = 9.87
p value is less than 0.01
Not all means of the three assembly methods are equal
Step-by-step explanation:
the anova table is an attachment
total number of methods = k = 3
number of observations n = 30
for treatment, df = 3-1 = 2
for error, df = 30 -3 (n-k) = 27
sst = 10800, sstr = 4560, sse = 10800-4560 = 6240
we find the mean of squares for error
sse/df of error = 6240/27 = 231.11
mean of squares for treatment = 4560/2 = 2280
test stat
F = 2280/231.11
= 9.8654
using f distribution table;
alpha = 0.05
df = 2 , 27
we get 3.35
h0; no difference in mean
h1; there is difference
9.87 > 3.35 so we reject H0, there is difference in means. all are not equal.
pvalue calculation
using excel,
FDIST(9.8654, 2, 27) = 0.0006078
p value is less than 0.01
we conclude that a. Not all means of the three assembly methods are equal
2
It takes Nathan 4 minutes to solve 3 math problems. Choose a ratio tool to determine how long will it take Nathan to solve 12 math problems.
Answer: since 4mins->3math prob.
then 12/3=4 and 4x4=16
It will take him 16 minutes to solve 12 math problems
Step-by-step explanation:
pens and pencils are sold in a shop. 12 pencils cost £1.80. the ratio of the cost of a pen to the cost of a pencil is 7: 3. workout the cost of 5 pen
Answer:
£2.10
Step-by-step explanation:
1.80 divided by .12 = .15
.15 times 7 = 1.05
1.05 divided by 3 = .35
.35 times 5 = 2.10
The cost of 5 pens will be £1.75
Since 12 pencils cost £1.80, the price of a pencil will be gotten by dividing £1.80 by 12. This will be:
= £1.80 / 12
= £0.15
A pencil costs £0.15
Since the ratio of the cost of a pen to the cost of a pencil is 7: 3, therefore, the cost of a pen will be:
= 7/3 × £0.15
= £0.35.
The cost of a pen is £0.35, therefore, the cost of 5 pens will be:
= £0.35 × 5
= £1.75
In conclusion, the cost of 5 pen is £1.75.
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A) −10 − 13 − 17 − (−40)=
B) 111 − (31 + 78) − 7 + 14 =
Answer:
A) 0
B) 9
Step-by-step explanation:
A) −10 − 13 − 17 − (−40) [B.E.D.M.A.S rule] (First bracket)
= - 10 - 13 - 17 + 40
= 40 - 10 - 13 - 17. (Then subtraction)
= 40 - 40
= 0 (Ans)
B) 111 − (31 + 78) − 7 + 14 [B.E.D.M.A.S rule] (First bracket)
= 111 − 109 − 7 + 14. (Then addition)
= 111 + 14 - 109 - 7
= 125 - 116. (At last subtraction)
= 9 (Ans)
A university health services physician is concerned about how much sleep freshmen are getting. She asks a simple random sample of 50 students if they got at least 8 hours of sleep the previous night. Then she constructs a 95% confidence interval for the true proportion of all freshman college students who got at least 8 hours of sleep the previous night
Answer:
c
Step-by-step explanation:
If the level of confidence falls to 90%, the length will likewise fall.
What is a Confidence interval?A confidence interval (CI) is a range of values that, with a particular level of certainty, is likely to encompass a population value. A population means that sits between an upper and lower interval is frequently stated as a percentage.
Let p be the proportion of students who gets at least 8 hours of sleep the previous night.
here, Sample size = n = 50
the 95% confidence interval for true proportion is,
P ± Zₐ/₂ * [tex]\sqrt{P{\frac{1-P}{n} }[/tex]
P ± 1.96 * [tex]\sqrt{P{\frac{1-P}{50} }[/tex]
95% confidence length = 2 *P ± Zₐ/₂ * [tex]\sqrt{P{\frac{1-P}{n} }[/tex]
= 2 * 1.96 * [tex]\sqrt{P{\frac{1-P}{50} }[/tex] = 3.92 * [tex]\sqrt{P{\frac{1-P}{50} }[/tex]
For 90% confidence length = 2 *P ± Zₐ/₂ * [tex]\sqrt{P{\frac{1-P}{n} }[/tex]
= 2 * 1.645 * [tex]\sqrt{P{\frac{1-P}{50} }[/tex] = 3.29 * [tex]\sqrt{P{\frac{1-P}{50} }[/tex]
Therefore, if the confidence level decreases to 90% then the length will also decrease.
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A rectangle measures 3 1/4 inches by 3 3/4 inches. What is the area
Answer:
12.1875 or 195/16 or 12 3/16
Step-by-step explanation:
All you must do is multiply them by each other
hope this helps
Answer:
12.19 inches
Step-by-step explanation:
please mark brainliest
Jeffery walked 1/3 mile on Monday and jogged 4/5 mile on Tuesday. How far did he wal and jog on Monday and Tuesday combined
Answer:
17/15
Step-by-step explanation:
Find the GCF of the denominators
15
Convert the fractions
1/3 ---> 5/15
4/5 ---> 12/15
Add.
12/15 + 5/15 = 17/15
Nora made 15 gallons of lemonade for a community picnic. She served 100 pints to the people. How many pints are leftover? Please help!
Answer:
There are 8 pints to a gallon so she makes 120 gallons, and since she served 100 pints then there are 20 pints left over.
Brainliest please?
A cone has a volume of 350 cubic meters. The area of the baseis
70 square meters. What is the height of the cone?
Answer:
The height is 15
Question
Find the slope of the line
Slope - m
Enter your answer as an integer or as a reduced fraction in the form A/B,
Check Answer
Answer:
m=-5/2
Step-by-step explanation:
Two points on the line are (-2, 1) and (0, -4).
So, we have to use the expression Δy/Δx to find the slope.
So, (1-(-4))/(-2-0)=5/-2=-5/2.
The slope of the line is -5/2
Here,
In the graph,
Two points on the line are (-2, 1) and (0, -4).
We have to find the slope of graph.
What is Slope?
A measure of its steepness is called the slope.
Now,
Two points on the line are (-2, 1) and (0, -4).
So, we have to use the formula of slope to find the slope.
Hence,
[tex]m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
So, [tex]m = \frac{-4-1}{0-(-2)} = \frac{-5}{2}[/tex]
Therefore, The slope of the line is -5/2.
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