Answer:
A. 2/5
B. 5/8
Step-by-step explanation:
0.4 = 4/10 = 2/5
625/1,000 = 125/200 =25/40 = 5/8
The average height of 18-year-old American women is 64.2 inches. You wonder whether the mean height of this year's female graduates from your local high school is different from the national average. You measure an SRS of 78 female graduates and find that x¯¯¯ = 63.1 inches. What are your null and alternative hypotheses? Note: Type in "mu" as the substitute for μ and "!=" for ≠.
Answer:
Step-by-step explanation:
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The null and alternative hypotheses are [tex]H_o[/tex] μ= 64.2 and [tex]H_a[/tex]: μ ≠ 64.2 respectively.
What is the hypothesis?In statistics, hypothesis testing is the process by which an analyst tests an assumption about a population's parameter. Using sample data, hypothesis testing is performed to examine the plausibility of a theory.
The average height of an 18-year-old American woman is 64.2 inches
Hypotheses state claims about a population parameter.
p: population proportion: population mean
σ: population standard deviation
The null hypothesis asserts that the sample size equals the claim value:
[tex]H_o[/tex] :μ= 64.2
The alternate hypothesis expresses the inverse of the null hypothesis (As per the claim):
[tex]H_a[/tex] : μ ≠ 64.2
μ = The average height of 18-year-old American women in the population.
[tex]H_o[/tex] :μ= 64.2
[tex]H_a[/tex] : μ ≠ 64.2
Thus, the null and alternative hypotheses are [tex]H_o[/tex] μ= 64.2 and [tex]H_a[/tex]: μ ≠ 64.2 respectively.
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3 (3w − 4) = −20
Solve for w, please
Answer:
[tex]\boxed {x = -\frac{8}{9}}[/tex]
Step-by-step explanation:
Solve for the value of [tex]w[/tex]:
[tex]3(3w - 4) = -20[/tex]
-Use Distributive Property:
[tex]3(3w - 4) = -20[/tex]
[tex]9w - 12= -20[/tex]
-Add both sides by [tex]12[/tex]:
[tex]9w - 12 + 12 = -20 + 12[/tex]
[tex]9w = -8[/tex]
-Divide both sides by [tex]9[/tex]:
[tex]\frac{9w}{9} = \frac{-8}{9}[/tex]
[tex]\boxed {x = -\frac{8}{9}}[/tex]
Therefore, the value of [tex]w[/tex] is [tex]-\frac{8}{9}[/tex].
The angle measures of a triangle are 2y + 3 degrees, 9y – 7 degrees, and 7y + 4 degrees. Which of the following is not one of the angle measures of the triangle?
Answer:
55
Step-by-step explanation:
The measures of the angles are 23, 83, and 74 degrees. 97 degrees is not the measure one of the angle measures of the triangle option (B) is correct.
What is an angle?When two lines or rays converge at the same point, the measurement between them is called a "Angle."
It is given that:
The angle measures of a triangle are 2y + 3 degrees, 9y – 7 degrees, and 7y + 4 degrees.
As we know,
The sum of the interior angle of the triangle is 180 degrees
2y + 3 + 9y - 7 + 7y + 4 = 180
18y = 180
y = 10
2y + 3 = 2(10) + 3 = 23 degres
9y - 7 = 9(10) - 7 = 83 degrees
7y + 4 = 7(10) + 4 = 74 degrees
Thus, the measures of the angles are 23, 83, and 74 degrees. 97 degrees is not the measure one of the angle measures of the triangle option (B) is correct.
The question is incomplete.
The complete question is in the picture, please refer to the attached picture.
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Mr. Dennis has 15.96 pounds of rice in his kitchen. He then goes and buys
more rice, and now had 23.75 pounds. What was the percent change in
the amount of rice in his kitchen? *
Whats 2 & 1/2 divided by 3 & 1/3
A = 3/5
B = 3/4
C = 4/10
D= 15/12
help pls 25 points
Answer:
B = 3/4
Step-by-step explanation:
2 1/2 / 3 1/3
can be written as 5/2 divided by 10/3. I always use keep, switch, flip technique with fractions. keep 5/2 switch the division to multiplication, flip the 10/3 to 3/10
5/2 x 3/10 cross multiply
15/20 = 3/4
Answer:
It would be B. 3/4
Step-by-step explanation:
You turn the mixed numbers into improper fractions then you divide by using the reciprocal of the 3 & 1/3. This will leave you into the equation "5/2 * 3/10"
When multiplied, you will get "15/20" which simplifies to "3/4"
Which choices are equivalent to the fraction below? Check all that apply.
18/36
1.6/18
2.8/18
3.1/3
4.1/2
5.3/4
6.6/12
answer question for brainliest
The table shows the listed sale price for bottled water at four stores.
Which store charges the LEAST amount per bottle of water?
Store 1 Store 2 Store 3 Store 4
Three 12 packs One 12 pack Four 6 packs One 6 pack
$10.49 $3.89 $7.99 $2.29
A
Store 1
B
Store 2
C
Store 3
D
Store 4
Answer:
I believe it d I'm sorry if it wrong but if I'm right mark brainlyest please
A track team has 4 runners on a relay team. If by coincidence each runner takes an average of 45.48 seconds to complete her leg of the relay, what is the total time to run the relay?
Answer:
181.92 seconds
Step-by-step explanation:
We are given that,
Time taken by each person in the team = 45.48 seconds
Number of members in the team = 4
It is required to find the total time taken by the team to finish the race.
Thus, the time taken taken = 4 × 45.48 = 181.92 seconds
Hence. the team finished the race in 72.4 seconds.
HURRYYYYYYY PLS BEFORE 11:59
The choices are
A. 35
B. 145
C. 55
D. 75
Answer:
Pretty sure it is A.
Step-by-step explanation:
m4 is equal to m8 because they are same side interior angles and so you set the 2 equations equal to each other to find x. Then plug it in.
Answer:
i think 75
Step-by-step explanation:
sorry if wrong
Which region represents the solution to the given system of inequalities?
Answer:
The intersection region shown in the graph attached is the solution of the system of inequalities.
Step-by-step explanation:
Answer:
Region A
Step-by-step explanation:
y<-1/2x
y greater than or equal to 2x+3
Which expression is equivalent to 63.56 + (–81.47)?
63.56 – 81.47
63.56 + 81.47
–63.56 – 81.47
–63.56 + 81.47
Answer:
A.
Step-by-step explanation:
Edge 2020
What is the rate of change of (-3,7) and (5,-9)
Answer: sorry wish I could help
Step-by-step explanation:
If a restaurant charges $9.90 for 2 sandwiches, how much will the restaurant charge for 15 sandwiches?
Katherine uses $\frac{7}{10}$ of a gallon of red paint to paint $\frac{3}{5}$ of her wall. How many gallons of red paint will she use to paint her whole wall? There is no 5/5
Answer:
1.167 gallons
Step-by-step explanation:
Given that:
Fraction of red paint used = 7/10 of a gallon
Fraction of wall painted = 3/5
Gallon of paint required to paint the entire wall:
Fraction of entire wall = 1/1
7/10 paint = 3/5 wall
x paint = 1 wall
Cross multiply
(3/5)x = 7/10
Divide both sides by 3/5
3/5x ÷ 3/5 = 7/10 ÷ 3/5
(3/5)x * 5/3 = 7/10 * 5/3
x = 35 / 30
x = 7/6 = 1.167 gallons of red paint
math need help please
Answer:
same side interior
Step-by-step explanation:
Which statement about rigid transformations is true?
A.
A rigid transformation preserves only the side lengths of a polygon.
B.
A rigid transformation preserves only the angle measures of a polygon.
C.
A rigid transformation preserves both the side lengths and the angle measures of a polygon.
D.
A rigid transformation preserves neither the side l
Answer:
The answer is B because it is only the measure of the polygon
1/2x + 1/4=3/5 solve for x
Answer:
0.07
Step-by-step explanation:
hoped i helped
y=-x-4
y=x
solve system of equations algebraically
Answer:
y=-2 x=-2
Step-by-step explanation:
y=-x-4
y=x
you can plug y in for x in the first equation by using substitution
y=-y-4
and then you solve for y
2y=-4
y=-2
so y equals -2. Since y=x, x also equals -2. Therefore
y=-2 x=-2
Ten less than seven times a number is twenty three.
Answer:
I believe the number is 4.7
Jason has a lemonade stand but he already made $26 he charges his customers one dollar per lemonade Kaylee has a lemonade stand where she made $16 and she charges the customers two dollars per lemonade which equation shows the number of lemonade, eggs, Kaylee needs to sell to make a higher profit than Jason. A. 26-x<16-2x. B. X+26<2x+16 C. 26+2x>16+x D. 16x+2>26x+1
Answer: B. X+26<2x+16
Step-by-step explanation:
Let x be the number of lemonade Kaylee needs to sell to make a higher profit than Jason.
Given: Jason has made $26. he charge $1 per lemonade.
Total earnings after x lemonades = $26+($1) x
= $(26+x)
Kaylee has made $16. he charge $2 per lemonade.
Total earnings after x lemonades = $16+($2) x
= $(16+2x)
Required inequality : (16+2x)> (26+x)
i.e. correct option is B.
Find the probability of getting four consecutive aces when four cards are drawn without replacement from a standard deck of 52 playing cards.
Answer:
P=0.0000037
P=0.00037%
Step-by-step explanation:
Probability
A standard deck of 52 playing cards has 4 aces.
The probability of getting one of those aces is
[tex]\displaystyle \frac{4}{52}=\frac{1}{13}[/tex]
Now we got an ace, there are 3 more aces out of 51 cards.
The probability of getting one of those aces is
[tex]\displaystyle \frac{3}{51}=\frac{1}{17}[/tex]
Now we have 2 aces out of 50 cards.
The probability of getting one of those aces is
[tex]\displaystyle \frac{2}{50}=\frac{1}{25}[/tex]
Finally, the probability of getting the remaining ace out of the 49 cards is:
[tex]\displaystyle \frac{1}{49}[/tex]
The probability of getting the four consecutive aces is the product of the above-calculated probabilities:
[tex]\displaystyle P= \frac{1}{13}\cdot\frac{1}{17}\cdot\frac{1}{27}\cdot\frac{1}{49}[/tex]
[tex]\displaystyle P= \frac{1}{270,725}[/tex]
P=0.0000037
P=0.00037%
the cytlindrical part of an architectrual column has height of 325cm and a diameter of 30cm. Find the volume of the cytlindrical part of the column. use 3.14 and round your answer to the nearest cubic centimeters if needed
Answer:
Step-by-step explanation:
229,613 cm ^3 took test.
If the pattern continues, how many stars will be in the Stage 15 figure?
Answer:
There would be 45 stars in a stage 15 patteren
someone help me!! thank you
Answer:
0-12
1-24
2-36
3-48
Step-by-step explanation:
Find the value of g when 59+ 12 equals 29 + 18.
Answer:
i dont know if you typed this correctly but 59+12=29+18 is false
Step-by-step explanation:
i know if what your looking for but o well
A sofa is on sale for 32% off. The sale price is $527.
What is the regular price?
Answer:
$1646.875
I hope this helps!
Expand.
Your answer should be a polynomial in standard form.
(3b-4)(b+2)=
Answer:
3b^2 +2b -8
Step-by-step explanation:
Answer:
[tex]3b^2+2b-8[/tex]
Step-by-step explanation:
PLEAZZZZZZZZZZZ HELPPPPPPP will mark brainlist
The table compares the main course and the side dish each person in Hiroki's family ordered at a restaurant.
Can the side dish be represented as a function of the main course?
Main course Side dish
Pasta primavera Salad
Fish Rice
Burger Potato chips
Fish Rice
Veggie burger Salad
Burger Potato chips
Pasta primavera Salad
Burrito Rice
Answer Choices
Yes (A)
or No (B)
Answer:
I know I'm late but the answer is yes!
Step-by-step explanation:
I got it correct on Khan academy:)
Answer:
Yes
Step-by-step explanation:
Khan academy:
what is the distance betwen (–3, –6) and (–3, 1)
Answer:
the square root of 7
Step-by-step explanation:
( -3 + 3 ) + ( 1 + 6 )
0 + 7
7
Rewrite the expression 16 + 32 as the product of the greatest common factor and the sum of the remaining numbers. Group of answer choices 2(8 + 16) 8(2 + 4) 4(4 + 8) 16(1 + 2)
please help and the question is in the docs
Answer:
sfuc,k u
Step-by-step explanation: