Answer:
H0: μ = 7.0
H1: μ > 7.0
Step-by-step explanation:
The null hypothesis will equal and take up the value of the population mean value ;
The population mean value, μ is 7.0
Null hypothesis ; H0: μ = 7.0
The alternative hypothesis will align with the claim ; which will take up and side with the value and direction of the sample mean ; 7.82 micrograms/100 ml
7.82 > 7.0 (sample mean is greater Than the population mean).
Hence, the alternative hypothesis, H1 will be ;
H1 : μ > 7.0
An object completes one round of circle of radius 7m in 20 sec. find the distance travelled after 10sec.
Answer: 7pi
Step-by-step explanation: If it completes the circumference distance (14pi) of the circle in 20 seconds, in 10 seconds it will complete half of that. or 7pi. Hope this helped!
:.the distance travelled after 10sec. =7πm
Answer:
in 20 sec distance travelled =2πr=2π×7=14πm
in 10 sec distance travelled=14πm×10/20=7πm
what percent of 15 is 0.6?
Answer:
4 is a percent of 15 is 0.6
Step-by-step explanation:
if you out 15/0.6 as a fraction you will get 4
Answer:
4%
Step-by-step explanation:
STEP 1: Put the numbers into a fraction
0.6/15
STEP 2: Divide
0.6/15 = 0.04
STEP 3: Move decimal point two places to the right
0.04 -> 4
Answer: 4%
ou want to put shingles on the outside walls and solar panel the roof of the barn shown. It costs $ for each square meter of shingles. Solar panels cost $ per square meter. How much will this project cost?
4 m
4 m
8 m
9 m
10 m
7 m
5 m
What is k^2+16k+64+89
Answer:
k²+16k+ 153
Step-by-step explanation:
k²+16k+64+89
= k²+16k+ 153
Express the following in form, where p and q are integers and q≠ . (0.1282828) find the answer please and thank you
Answer: [tex]\dfrac{127}{990}[/tex].
Step-by-step explanation:
Let x=0.1282828...
Multiply 10 on both sides , we get
10 x = 1.282828... (i)
Now multiply 100 on both sides , we get
1000x=128.2828... (ii)
Eliminate (i) from (ii), we get
[tex]990x=127\\x=\dfrac{127}{990}[/tex]
Hence, the required [tex]\dfrac{p}{q}[/tex] form: [tex]\dfrac{127}{990}[/tex].
x/3 less than or equal to 7
Answer:
x ≤ 21
Step-by-step explanation:
x/3 ≤ 7
x ≤ 21
Answer:
x ≤ 21
Step-by-step explanation:
With this problem, we have to solve for x, and to do that, we isolate the variable.
To do this, let’s get rid of the /3 from the x by multiplying both sides by 3
now we get x ≤ 7 times 3
finall, we get x≤21
May someone help me please. Solve for x and then find the indicated length. Pleaseee
Answer:
16
Step-by-step explanation:
3x + 4 = x + 12 [The straight line on the segments AB and BC indicate that they are the same length]
2x = 8 [Subtract x and 8 from both sides]
x = 4 [Divide both sides by two]
Length AB is equal to (3x + 4) as indicated by the diagram. Substituting x = 4, (3 * 4) + 4 = 16
Fifty people put there name
into a two different drawings
(30 males and 20 females).
One drawing is for an iPad and
the other is for a flat screen
TV. What is the probability
that a male will win both
drawings.
Possible answers ⇒
13%
27%
36%
49%
WILL GIVE BRAINLIST
Answer:
36%
Step-by-step explanation:
30/2500 x 30/2500=
900/2500=0.36
0.36*100=36%
WHat do u do with the brainly credits or whatever
Answer:
You basically grow rep
Step-by-step explanation:
Brainly points you need for asking questions and people are more likely to trust you with their questions if you have alot!
Answer:
i actually dont know
Step-by-step explanation:
The owner of a tree farm plants pine trees and oak trees in a ratio of 8:3. How many oak trees are planted if 264 pine trees are planted
Answer:
99 oak trees
Step-by-step explanation:
Given data
Ratio= 8:3
Number of pine tree= 264
Let the number of oak trees be x
Let us apply the part to part method
8/264= 3/x
cross multiply
264*3= 8x
792=8x
x= 792/8
x=99 oak trees
The owner of the tree farm planted 99 oak trees.
An equation is an expression used to show the relationship between two or more numbers or variables.
Given that a farmer plants pine trees and oak trees in a ratio of 8:3. If 264 pine trees are planted, let y represent the total number of trees hence:
264 = (8/11) * y
y = 363 trees
Number of oak trees = (3/11) * 363 = 99 trees
Therefore the owner of the tree farm planted 99 oak trees.
Find out more at: https://brainly.com/question/24169758
What value for the variable makes this equation true?
`-2= 3+ b/4
<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3
Answer:
Let's solve your equation step-by-step.
−2 = 3 + b / 4
Step 1: Simplify both sides of the equation.
−2 = 3 + b / 4
−2 = 3 + 1 / 4b
−2 = 1 / 4b + 3
Step 2: Flip the equation.
1 / 4b + 3 = −2
Step 3: Subtract 3 from both sides.
1 / 4b + 3 − 3 = −2 − 3
1 / 4b = −5
Step 4: Multiply both sides by 4.
4 * ( 1 / 4b ) = ( 4 ) * ( −5 )
b = −20
Answer:
b = −20
<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3
Amy makes the following statement:
"There is a 60% chance of snow tomorrow and a 10% chance I will be late for school."
What is the probability that it will snow and Amy will be late for school? (1 point)
a
3%
b
6%
c
50%
d
70%
Answer:
B
Step-by-step explanation:
Please someone help with this
I’v been stuck on it all day
By the way I have already been sent that link that hacks you
Just show the work
ok, i will help you.
For the first equation, we have points
(-1, -4)
and
(1, -1)
we also know the y-intercept is
(0, -2)
we can make systems of equations to solve for the equation of this exponiental function
y=ab^x
-1=ab
-2=a*1
a=-2
-1=-2(b)
b=1/2
The exponiental fufnction here is y=(-2)(1/2)^x
2nd equation
(0, 6)
(1, 12)
12=ab
6=a*b^0=6
a=6
12=6(b)
b=2
2nd equation is
y=6(2)^x
Which statement explains the type of function that is represented by the equation
y=x2 +9?
Here are 36 points to you beautiful people
Answer:
Thank you so much
Step-by-step explanation:
A total of 397 tickets were sold for the school play. They were either adult tickets or student tickets. There were 53 fewer student tickets sold than adult tickets. How many adult tickets were sold?
Please help me if you know. Please give me an answer
9514 1404 393
Answer:
6 3/10 pounds
Step-by-step explanation:
The weight change will be found by multiplying the rate of change by the time.
∆w = (-1.8 lb/h)(3.5 h) = -6.3 lb
The total change in weight after 3 1/2 hours is 6 3/10 = 6.3 pounds.
Osing Trig to Find a Side Apr 06, 5:40:44 PM In AOPQ, the measure of ZQ=90°, the measure of Z0=26°, and QO = 4.9 feet. Find the length of PQ to the nearest tenth of a foot. P (hypotenuse) X (opp. of 20) 2009 Q 4.9
Answer:5.4
Step-by-step explanation:
Which is missing from step 4?
Add the data for each interval.
Put a point on each line of the y-axis that has data.
Put the data in order in the table.
Create the bars.
Answer:
The answer u put in the thing is correct!
Step-by-step explanation:
HELP!!!!!! will give brainlist
Answer:
1. 112 cm
2 135 ft
3 53.67
Step-by-step explanation:
Answer:i
Step-by-step explanation:
please help me! i'm stuck on it
Answer:
x = 15.4
Step-by-step explanation:
Because this is a right triangle, you can use the pythagorean theorem to find the length of the hypotenuse. the theorem is a^2 + b^2 = c^2
so
9^2 + 12.5^2 = c^2
solving this will give you 15.4
What is the volume of a cone with a radius 3 cm and a height 6 cm?
Answer:
56.55
Step-by-step explanation:
I need this pls help me
Answer:
that statement is true
is there some other question?
Answer:
it is true
Step-by-step explanation:
A small business owner is determining her profit for one month. Her expenses were $230.21 for utilities, $2,679.82 for rent, and $3,975.00 for employee salaries. She made $11,449.27 in sales for the month. What is her profit?
Her profit would amount to $4564.24 for one month which is determined by subtracting her total expenses from made revenue.
What are Arithmetic operations?Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.
- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.
for example 12 -2 = 10
For the month, she made a revenue of $11,449.27.
To calculate her profit, we have to subtract her total expenses from made revenue.
Her expenses were $230.21 for utilities, $2,679.82 for rent, and $3,975.00 for employee salaries which are given in the question.
Total expenses = 230.21 + 2,679.82 + 3,975.00 = 6885.03
As per the given data, the solution would be:
⇒ Total revenue - Total expenses
⇒ 11,449.27 - 11,449.27
Apply the subtraction operation, and we get
⇒ 4564.24
Therefore, her profit would amount to $4564.24 for one month.
Learn more about Arithmetic operations here:
brainly.com/question/25834626
#SPJ2
A square underwent a dilation using a scale factor of 1:4. Find the missing side length, x, of the smaller square
Answer:
[tex]x= 3.5[/tex]
Step-by-step explanation:
Given
[tex]k =1:4[/tex] --- scale factor
See attachment for squares
Required
Find x
The corresponding side of length x on the bigger square is 14.
So, we have:
[tex]k = x : 14[/tex]
Equate both values of k
[tex]x : 14 = 1 : 4[/tex]
Express as fractions
[tex]\frac{x }{ 14 }= \frac{1 }{ 4}[/tex]
Solve for x
[tex]x= \frac{1 }{ 4} * 14[/tex]
[tex]x= \frac{14}{4}[/tex]
[tex]x= 3.5[/tex]
Solve for w. Make sure to use scrap paper to show your work. ( 36 ÷ 3 )( 2 x 6 ) = w
Answer:
your answer is w=144
Step-by-step explanation:
(36÷3=12)(2x6=12)
12x12=144Answer: 144
Step-by-step explanation:
Solve the inequality
x - 4/5 > 1/5
x - 4/5 > 1/5
+4/5 +4/5 add 4/5 on each sides, 4/5s will cancel on the left side.
__________ solve for 1/5 + 4/5, which is 1.
x > 1, is the final answer.
hope this helps :)
Answer:
x>1
Step-by-step explanation:
Drag the correct steps into order to solve the equation 5x5 + 5 = 10 for x
Answer:
x = 1
Step-by-step explanation:
5x^5 + 5 = 10
Start the solution by subtracting 5 from both sides:
5x^5 = 5
Dividing both sides by 5 yields x^5 = 1.
Taking the 5th root of both sides, we get x = 1
Identify the zero(s) of this function (Desmos)
Answer:
x=2, -6
Step-by-step explanation:
[tex]3x^{2} +12x-36=0[/tex]
[tex]x^{2} +4x-12=0[/tex] (Divided by 3)
[tex](x-2)(x+6)=0\\x_{1} =2, x_{2} =-6[/tex]
Pew research reported in 2013 that 15% of American adults do not use the internet or e-mail. They report a margin of error of 2.3 percentage points. The meaning of that margin of error is: A) If they repeatedly sampled from the population, and constructed a confidence interval for each estimate, about 2.3% of those intervals would capture the proportion of American adults who don't use the internet or e-mail. B) They estimate that 2.3% of those surveyed answered incorrectly. C) There is a 2.3% probability that their estimate is incorrect. D) They are pretty sure that the poll result differs from the actual percentage of American adults who don't use the internet or e-mail by 2.3% or less.
Answer:
B) They estimate that 2.3% of those surveyed answered incorrectly
Step-by-step explanation:
hope it helps you dude