Answer:
what is this a maths problem
Dima’s mom went to the bakery and bought 18 donuts. 1/2 of the donuts were chocolate. Dima‛s family ate 1/3 of the chocolate donuts but didn‛t eat any other kind. What fraction of the donuts did they eat?
Answer:
They ate 1/6 of the donuts
Step-by-step explanation:
They bought 18 donuts. 1/2 of 18 is 9. 1/3 of 9 is 3. To find the fraction, divide 3 by 18. Simplify the fraction. You are left with 1/6.
HELP PLSSSSSSSSSSSSS Carin is going to paint walls of her room green. The green paint is too dark so she mixes it with white paint. She tries different mixtures. Which of the following will give the darkest green color?
A. 1 part green + 3 parts white
B. 2 parts green + 6 parts white
C. 3 parts green + 9 parts white
D. 4 parts green + 12 parts white
E. They will all be equally dark.
Indicate whether the function represents an exponential growth or decay.
Answer:
1) decay
2) growth
3) growth
Step-by-step explanation:
A generic exponential function can be written as:
f(x) = A*(r)^x
Where:
A is the initial amount of something.
r is the rate of growth.
x is the variable, usually, represents time.
if r > 1, we have an exponential growth.
if r < 1, we have an exponential decay.
1) f(x) = (3/4)^x
in this case we have:
A = 1
r = (3/4) = 0.75
Clearly, r < 1.
Then this is an exponential decay.
2) f(x) = (1/6)*4^x
In this case we have:
A = (1/6)
r = 4
Here we have r > 1.
Then this is an exponential growth.
3) f(x) = (1/4)*(5/2)^x
in this case we have:
A = 1/4
r = 5/2 = 2.5
here we have r > 1, then this is an exponential growth.
Test the claim that the mean GPA of night students is significantly different than the mean GPA of day students at the 0.02 significance level.
GPA-Night GPA-Day 3.15 3.47 3.68 3.49 3.34 3.07 3.07 3.31 3.31 3.28 3.2 3.05 3.07 3.12 2.8 3.5 3.04 3.04 3.13 3.19 3.54 3.26 3.24 3.31 3.02 3.45 3.44 2.9 2.79 2.76 3.18 2.69 2.99 3.46 3.28 3.09 3.16 2.72 3.08 3.14 2.47 3.08 3.03 2.99 3.02 3.11 2.58 2.84 3.36 2.99 3.04 2.99
(1) The null and alternative hypothesis would be:
a.H0:μN≥μD
H1:μN>μD.
b.H0:μN=μD
H1:μN≠μD.
c.H0:pN≥pD
H1:pN
d.H0:pN=pD
H1:pN≠pD.
e.H0:μN≤μD
H1:μN<μD
f.H0:pN≤pD
H1:pN>pD.
(2) The test is:_______.
a. right-tailed.
b. two-tailed.
c. left-tailed.
(3) The sample consisted of 70 night students, with a sample mean GPA of 2.12 and a standard deviation of 0.08, and 70 day students, with a sample mean GPA of 2.08 and a standard deviation of 0.02
Answer:
Step-by-step explanation:
Test the claim that the mean GPA of night students is significantly different than the mean GPA of day students at the 0.02 significance level.
GPA-Night GPA-Day 3.15 3.47 3.68 3.49 3.34 3.07 3.07 3.31 3.31 3.28 3.2 3.05 3.07 3.12 2.8 3.5 3.04 3.04 3.13 3.19 3.54 3.26 3.24 3.31 3.02 3.45 3.44 2.9 2.79 2.76 3.18 2.69 2.99 3.46 3.28 3.09 3.16 2.72 3.08 3.14 2.47 3.08 3.03 2.99 3.02 3.11 2.58 2.84 3.36 2.99 3.04 2.99
(1) The null and alternative hypothesis would be:
a.H0:μN≥μD
H1:μN>μD.
b.H0:μN=μD
H1:μN≠μD.
c.H0:pN≥pD
H1:pN d.H0:pN=pD
H1:pN≠pD.
e.H0:μN≤μD
H1:μN<μD
f.H0:pN≤pD
H1:pN>pD.
(2) The test is:_______.
a. right-tailed.
b. two-tailed.
c. left-tailed.
(3) The sample consisted of 70 night students, with a sample mean GPA of 2.12 and a standard deviation of 0.08, and 70 day students, with a sample mean GPA of 2.08 and a standard deviation of 0.02
What was the temperature in the city with an elevation of -9?
Answer:
7(u will trace the _9 in x axis to y axis where the blue dot is the value there will be our answer and that is 7)
How many integers satisfy each inequality?
-102
Answer:At integers -2 and -3 the value of the equation is zero, hence satisfies the inequality. So overall 4 integers satisfy the inequality.
i got 1 2 3 4 5 6 7 8 ems in my bank account
Step-by-step explanation:
What is the actual height of the building shown in the model?
Answer:
The actual height is 150ft
Step-by-step explanation:
Given
[tex]Width : Height = 2cm : 5cm[/tex]
[tex]Actual\ width = 60ft[/tex]
Required
Determine the actual height
Substitute 60ft for width in: [tex]Width : Height = 2cm : 5cm[/tex]
[tex]60ft:Height =2cm:5cm[/tex]
Express as fraction
[tex]\frac{60ft}{Height} =\frac{2cm}{5cm}[/tex]
[tex]\frac{60ft}{Height} =\frac{2}{5}[/tex]
Make height the subject
[tex]Height = \frac{5}{2} * 60ft[/tex]
[tex]Height = 5 * 30ft[/tex]
[tex]Height = 150ft[/tex]
Answer:
Step-by-step explanation:
1 cm represents 30 ft
height of building = 5 cm × 30 ft/cm = 150 ft
Three boards are placed end to end to make a walkway. The first board is 2 feet 6 inches long, the second board is 3 feet 2 inches long, and the third board is 5
eet 7 inches long. How long is the walkway?
Write your answer in feet and inches. Use a number less than 12 for inches.
Step-by-step explanation:
TALA RHYTHMIC PATTERNS
ACTIVITY 2: LET'S DO TALA
kind of membranophones/percussion instruments found at home for tapping. Record your
Directions: Perform the following tala rhythmic patterns using the given legend. Use any
performance using any recorder and send it to your
INSTRUMENTS AT HOME
MANJIRA
TIN CANS
1 2 3 4 5 6
х
1 2 3 4 5 6 7 8 9 10 11 12
GHATAM
PAL
X
х
0 X
TABLA
1 2 3 4 5 6 7 8 9 10
BOX
x xox
Answer:
11 feet 3 inchesStep-by-step explanation:
1 feet = 12 inches
Add up the lengths:
2 ft 6 in + 3 ft 2 in +5 ft 7 in-------------------
10 ft 15 in = 10 ft + 12 in + 3 in = 10 ft + 1 ft + 3 in = 11 ft 3 inSOMEONE PLEASE HELP IM STUCK AND ITS MY LAST QUESTION
Answer:
Theta=60
Step-by-step explanation:
Lets start to get the value of x in [tex]sin(x)=\frac{1}{2}[/tex]
Just do the opposite which is [tex]sin^{-1}(\frac{1}{2}) = 30[/tex]
So [tex]sin(30)=\frac{1}{2}[/tex]
Still we got only the value of x not theta then
The value of x = theta/2
Theta/2=30 multiply each side by 2
Theta = 60
the percent change from 50 to 43
Answer:
its not 7% btw
Step-by-step explanation:
Need a little help with this one problem! All help appreciated!
Answer:
A. Magic carpets
B. Carpet Brites
C. Carpet Brites
Step-by-step explanation:
70 x 15 = 1050 + 10 = 1060
60 x 15 = 900 + 30 = 930
In a baseball card collection, 40% of the cards are worth more than $100. If 12 cards in the collection are worth more than $100, how many total baseball cards are in the collection?
Answer:
30
Step-by-step explanation:
Total number of cards = number of cards worth more than 100 divided by the rate of those cards among total cards = 12/40% = 30
Solve the equation. 7x = 3x^2 - 1
Answer:
Step-by-step explanation:
Answer:
If you still need help search up Mathaway it gives u the answer to all your problems and it gives a step by step explination
Step-by-step explanation:
Subtract
3
x
2
from both sides of the equation.
7
x
−
3
x
2
=
−
1
Add
1
to both sides of the equation.
7
x
−
3
x
2
+
1
=
0
Use the quadratic formula to find the solutions.
−
b
±
√
b
2
−
4
(
a
c
)
2
a
Substitute the values
a
=
−
3
,
b
=
7
, and
c
=
1
into the quadratic formula and solve for
x
.
−
7
±
√
7
2
−
4
⋅
(
−
3
⋅
1
)
2
⋅
−
3
Simplify.
Tap for more steps...
x
=
7
±
√
61
6
The final answer is the combination of both solutions.
x
=
7
+
√
61
6
,
7
−
√
61
6
The result can be shown in multiple forms.
Exact Form:
x
=
7
+
√
61
6
,
7
−
√
61
6
Decimal Form:
x
=
2.46837494
…
,
−
0.13504161
…
Alex went to the grocery store and bought 1 pound of oranges, 0.75 pounds of bananas, and 1.255 pounds of apples. How much did all of his produce weigh?
Solontendras qie dividir 075 liego 1255 y tines que saber cuento. Pesa una libra
Chloe wants to give her apartment a more elegant look, so she decides to make drapes for her 6 windows. She plans to make 2 drapes for each window. Each drape will be 84 inches long. How many yards of fabric should she buy for her new drapes?
Answer:
84 yards
Step-by-step explanation:
1008 inches converts to 84 yards
i know mia is right but what’s the explaining?
Answer:
Just explain why you chose mia..
Step-by-step explanation: Why do you think mias right?
Answer:
Mia is right
Step-by-step explanation:
But the reason is because y=4+6x mark is going over the line and he needs to make sure its accross.
In one survey, the sizes of women we distributed normally about the mean, the mean of the data is 7, and the standard deviation is 1.5. about what percent of the women are between a 5.5 and 8.5 shoe size?
68%
34%
80%
15%
Answer:
it's 68%
just did the homework lol
??????????????????????????
Answer
I believe it is 1/12
Step-by-step explanation:
as it is 24 ft tall, and then the model is 2 ft tall
22 ft is subtracted
so basically for every 12 ft one is added to the model
so 1/12 should be the ans
Which of the following statements are true? (Select all that apply)
Correlation coefficients are negative when the relationship is weak and positive when they are strong.
Correlation coefficients show the relationship of the x and y values.
Correlation coefficients can be any value less than 1 or greater than −1.
Correlation coefficients show the x and y intercepts of the best fit line.
Correlation coefficients can be represented by the variable r.
Answer:
a and c I'm 99percent shure
Can someone help me? I'll reward points + brainalist
The answer for the following question is 12
as
Circumference of the circle = 2TTr
= 2 x 22/7 x 12
= 44 / 7 x 12
= 75.4285714286
Please help I will give brainliest:) hurry! Answer carefully plss
Y = -3x^2 +4 is the answer to this problem
What is the area of a rectangle that is 6 inches long by 1/12 inch wide?
felixs total credit card balance is described by the following function f(p)=p(1.30). if felix owes 2500, what is the total bill plus interest
Given:
Felix's total credit card balance is described by the following function
[tex]f(p)=p(1.30)[/tex]
To find:
The total bill plus interest if Felix owes 2500.
Solution:
We have,
[tex]f(p)=p(1.30)[/tex]
Where [tex]p[/tex] is the amount Felix owes.
Putting [tex]p=2500[/tex] in the given function, we get
[tex]f(2500)=2500(1.30)[/tex]
[tex]f(2500)=3250[/tex]
Therefore, the total bill plus interest is 3250.
Which is a true statement about angles 1 and 2? O the two angles are supplementary
the two angles are complementary
the two angles are neither complementary nor supplementary
the two angles are vertical angles
What are the values of the function when x=0 and when x=4?
Answer:
0 and h4
Step-by-step explanation:
Value of function when x=0 is 10 and at x=4 is 16.
What are the values of the function?The value of a function, given the value(s) allocated to its argument(s), exists as the quantity assumed by the function for these statement values.
Function value may direct to: In mathematics, the value of a function when involved in an argument.
Analyzing the piece wise function
when x is between 0(including) and 4(excluding), the function behaves as:
[tex]h(x)=2x^{2} -3x+10[/tex]
put x=0:
[tex]h(0)=2(0)^{2} -3(0)+10=10[/tex]
when x greater than equal to 4, the function behaves as:
[tex]h(x)=2^{x}[/tex]
put x=4:
[tex]h(4)=2^{4} =16[/tex]
Therefore, values are 10 and 16 respectively.
To learn more about values of the function refer to:
https://brainly.com/question/12507191
#SPJ2
Helpheheehhedhhdhdhuahdhdh
Answer:
2.9
Step-by-step explanation:
.05 rounds up.
2.9
Choose two statements that are true for this expression.
6x^3-8x^2-40/y+21
A. The entire expression
B. There are three terms
C. There are four terms
D. The term -40/y is a ratio
Answer:
C and D
Step-by-step explanation:
A P E X verified
If θ is an angle in standard position whose terminal side lies in quadrant III and sin θ=-√3/2, find the exact value of the tan θ
Answer:
C) √3
tanθ = √3
Step-by-step explanation:
Step:-1
Given that θ be an angle in standard position whose terminal side
Given that the angle
sinθ = [tex]\frac{-\sqrt{3} }{2}[/tex]
Given that the Opposite side AB = [tex]\sqrt{3}[/tex]
Hypotensue AC = 2
Step(ii):-
By using Pythagoras theorem
AC² = AB² +BC²
BC² = AC² - AB²
BC² = 4 - (√3)²
= 4-3
BC = 1
Adjacent side(BC) = 1
Step(iiI):-
Given that 'θ' lies in the third quadrant so tanθ is positive
tanθ = [tex]\frac{AB}{BC} = \frac{\sqrt{3} }{1}[/tex]
Answer:
b. -1/2
Step-by-step explanation:
:)
For each geometric sequence, write a recursive rupe by finding the common ratio by calculating the ratio of consecutive terms. Write an explicit rule for the sequence by writing each term as the product of the first term and a power of the common ratio.
Answer:
3
Step-by-step explanation:
10
TIME REMAINING
50:51
What are the solutions of x squared + 6 x minus 6 = 10?
Answer:
X = -8 and X = 2
Step-by-step explanation:
X^2 + 6X - 6 = 10
Bring the 10 over:
X^2 + 6x - 16 = 0
From here, either use the quadratic formula or
manual factorization by finding its roots:
Manually:
(X + 8)(X - 2) = 0
Equate each factor to 0 you will get:
X + 8 = 0 and X - 2 = 0
Solutions are -8 and 2 respectively.