Answer:
The finding is significant at both α = 0.05 and α = 0.01.
Step-by-step explanation:
Given that:
Null hypothesis : H0: p = 0.65 against the Alternative Ha: p < 0.65,
The test statistic ; z test = - 2.35
From the test statistic value, we can obtain the p value of the test :
To determine if the claim is significant at both α = 0.05 and α = 0.01
We compare the Zstatistic and Zcritical values
If Zstatistic < Zcritical ; then we reject H0; if otherwise, we fail to reject H0
Zcritical at 95% one tailed = - 1.645 (left tail)
Zcritical at 95% one tailed = -2.326 (left tail)
- 2.35 < - 1.645
-2. 35 < 2.326
Since, Zstatistic < Zcritical;
The finding is significant at both α = 0.05 and α = 0.01.
• Solve the problem below.
• Include the strategy that you use to solve the problem.
Brian is tiling his bathroom floor. This does not include the part of the floor covered by his
bathtub. A diagram of Brian's bathroom is shown below. How many square feet of tile
does Brian need to cover the bathroom floor?
Bathtub
48 in.
60 in.
9 ft.
12 ft.
Answer:
60 in
Step-by-step explanation:
bc he does, bc yeah, and yeah, lol
Identify the line of reflection that maps rhombus PQRS onto rhombus JKLM.
Answer:
x=1
Step-by-step explanation:
SIMPLIFY IT PHOTO IS UP I WILL MARK IT BRAINLIEST
Step-by-step explanation:
Notice that
9y² - 4xy + 4x²/9 = (3y - 2x/3)².
Therefore (9y² - 4xy + 4x²/9) / (3y - 2x/3)
= (3y - 2x/3).
Answer:
(9y²-4xy+4x²/9)/(3y-2x/3)
={(3y)²-2(3y)(2x/3)+(2x/3)²}/(3y-2x/3)
=(3y-2x/3)²/(3y-2x/3)
=(3y-2x/3)
(3y-2x/3) is the right answer.Archeologists discover four outer walls of an ancient building, as shown.
If the missing walls are the same lengths as the discovered walls, how many
sides did the original building have? Explain.
15 sides
It’s the right answer
The number of sides that the original building has will be 15 sides.
What is a polygon?The polygon is a 2D geometry that has a finite number of sides. And all the sides of the polygon are straight lines connected to each other side by side.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
The measure of the exterior angle is given as,
Exterior angle = 180° - Interior angle
Exterior angle = 180° - 156°
Exterior angle = 24°
The total number of sides of the polygon will be given as,
Exterior angle = 360° / (Number of sides)
24° = 360° / n
n = 360° / 24°
n = 15
The number of sides that the original building has will be 15 sides.
More about the polygon link is given below.
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The complete question is given below.
I GIVEE BRAINLILSTTTT6TTTT
Answer:
,mbn ,bmnbb
Step-by-step explanation:
nnbn bn bn
Skate Space charges $50.00 to rent their bullding for events and \$5,50 per person to attend. A planning committee has \$100.00 to spend for an event at Skate SpaceWhich the committee use to find xnumber of people who can attend the event at Skate Space?
Answer:
50 + 5.50x <= 100
Step-by-step explanation:
Just did the test
The number of visits to public libraries increased from 1.3 billion in 1998 to 1.5 billion in 2002. Find the average rate of change in the number of public library visits from 1998 to 2002.
Answer: The average rate of change in the number of public library visits from 1998 to 2002 = 0.05 billion per year.
Step-by-step explanation:
Given: Number of visits in 1998 = 1.3 billion
Number of visits in 2002 = 1.5 billion
The average rate of change in the number of public library visits from 1998 to 2002 = [tex]\dfrac{\text{Number of visits in 2002 - Number of visits in 1998}}{2002-1998}[/tex]
[tex]=\dfrac{1.5-1.3}{4}\\\\=\dfrac{0.2}{4}\\\\= 0.05 \text{ billion per year.}[/tex]
Hence, the average rate of change in the number of public library visits from 1998 to 2002 = 0.05 billion per year.
Need help with this khan academy question. Plus minus square root of negative nine equals plus or minus
Answer:
3i
Step-by-step explanation:
3i x 3i = -9
-3i x -3i = -9
Therefore the square root of -9 is 3i or -3i
The simplified radical expression ±√(-9) is ±3i
The expression ±√(-9) involves finding the square root of a negative number. In the real number system, this is not possible, as no real number multiplied by itself will result in a negative value. To overcome this limitation, mathematicians introduced the concept of imaginary numbers. The imaginary unit, denoted by 'i,' is defined as √(-1).
Now, let's simplify the expression ±√(-9) step by step:
Step 1: Begin by recognizing that √(-9) is the square root of -9.
Step 2: Since √(-1) is 'i,' we can rewrite √(-9) as √(9) * √(-1).
Step 3: The square root of 9 (√9) is 3.
Step 4: Replace √(-1) with 'i.'
Step 5: The final result is 3i.
Therefore, the simplified form of ±√(-9) is ±3i.
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which ratio does not belong with 2/6
a) 1/3 b) 3/9 c)6/15 d) 12/36
Answer:
C)6/15
Step-by-step explanation:
it reduces to 2/5 no 1/3
12/36 --> 1/3
At a track meet , 10 different runners compete in the 1600m run.
How many different ways are there for the runners to finish? Show your work for full credit.
Answer:
There are 3,628,800 different ways for the runners to finish.
Step-by-step explanation:
Arrangments of x elements:
The number of possible arrangments of x elements is given by the following formula:
[tex]A_{x} = x![/tex]
In this question:
10 different runners, which means that the number of different ways that there are for the runners to finish is an arrangment of 10 elements. So
[tex]A_{10} = 10! = 3628800[/tex]
There are 3,628,800 different ways for the runners to finish.
HELP ME PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
Can someone please answer this question? I really need the answer please. Q:Two signs are on a street. One blinks every 10 s and the other every 6 s. How many times per minute do they blink together?
The volume of water in a tank is 0.7 cubic meter. Write this volume in cubic centimeter
Answer:
11.47 in cubic centimeters
Step-by-step explanation:
show that KLMN is a parallelogram
Quadrilateral ABCD has the following vertics:A( -3,0) B (7,2) C (1,-4) D (-9,-6) is Quadrilateral A B C D a parallelgram, and why?
Answer:
in my opinion I think it parallelogram because it has four sides which are A,B,C,D
Find the sum of measures of the interior angles of the given figure
The sum of interior angles of the given 6 sided polygon is 720°. Therefore, option A is the correct answer.
What is the formula for sum of interior angle of a polygon?(n-2)180° is the formula for computing the total internal angles, where is the total number of sides. In a regular polygon, all internal angles are equal. Interior angle of a polygon = sum of interior angles number of sides is the formula for determining the amount of an interior angle.
In the given figure, there are 6 sides.
The sum of interior angles = (n-2)×180°
= (6-2)×180°
= 4×180°
= 720°
Therefore, option A is the correct answer.
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PLEASE HELP!!!
A quadratic equation has two roots: -2 and 3. Which describes the location of the roots on the graph of the equation?
a) at the point (-2,3)
b) crossing the x-axis at -2 and 3
c) at the point (3,-2)
d) crossing the y-axis at -2 and 3
e) at the vertex of the parabola
Answer:
Answer b) : crossing the x-axis at -2 and 3
Step-by-step explanation:
The roots will be located at the crossing of the graph with the x-axis at the points (-2, 0) and (3, 0).
Therefore, the correct answer is that labeled b)
Emily increased the price of carrot cakes at her bakery by 6%. The original price of a carrot cake is represented by x. Which expression represents the price of a carrot cake after the increase?b
Answer:
1.06x
Step-by-step explanation:
The original price of a carrot cake is represented by x.
Emily increased the price of carrot cakes at her bakery by 6%.
We need to find an expression that represents the price of a carrot cake after the increase.
Price = x+6% of x
[tex]=x+\dfrac{6}{100}x\\\\=x+0.06x\\\\=1.06x[/tex]
Hence, the required equation is "1.06x".
Answer:
1.06x
Step-by-step explanation:
what is 18/7 reduced to the lowest term
Answer:
18/7
Step-by-step explanation:
You cannot simplify this any further.
Answer:
its 2 4/7
Step-by-step explanation:
If you mean simplifying it
Triangle PQR is similar to triangle XYZ
Select all angles that have a cosine of 9/15
Answer:
Step-by-step explanation:
All the angles that have a cosine of 9/15 are,
⇒ ∠P and ∠X
What is mean by Angle?An angle is a combination of two rays (half-lines) with a common endpoint. The latter is known as the vertex of the angle and the rays as the sides, sometimes as the legs and sometimes the arms of the angle.
Given that;
Triangle PQR is similar to triangle XYZ.
Hence, We get;
In triangle PQR,
cos P = 9/15
And, In triangle XYZ,
cos X = XZ / ZY
cos X = 9 / 15
Thus, All the angles that have a cosine of 9/15 are,
⇒ ∠P and ∠X
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The cost of hiring a taxi consists of a fixed cost of $3 plus $0.5 per kilometer distance travelled. Write an expression in terms of y for hiring a taxi for y kilometers.
Answer:
The required expression is:
y = 0.5x + 3Please check the attached graph too.
Step-by-step explanation:
The slope-intercept form of the linear or line function
[tex]y = mx+b[/tex]
where
m is the rate of change or slopeb is the y-interceptIn our case,
The cost of hiring a taxi consists of a fixed cost of $3. It means the fixed cost of $3 is the initial condition.
Thus, the y-intercept b = 3
It is stated that the cost of per kilometer distance = $0.5
Thus, the rate of change or slope m = 0.5
As y represents the cost and x represents the number of kilometers.
so substituting m = 0.5 and b = 3 in the slope-intercept form of the linear or line function
y = mx+b
y = 0.5x + 3
Thus, the required expression is:
y = 0.5x + 3Please check the attached graph too.
PLEASE HELP ILL OFFER MONEY I DONT CARE PLEASSEEEEE Mark has $75 to spend on salmon at $5.00 per pound and/or chicken at $3.00 per
pound. If he buys s pounds of salmon and c pounds of chicken, the equation 5s + 30
= 75 must be satisfied. How much salmon did Mark buy if he bought 5 pounds of
chicken?
a) 12 lb
Ob) 16 lb
C) 17 lb
d) 19 lb
Answer:
a) 12 lb
Step-by-step explanation:
First we find the lb for the chicken
5 * $3 = $15
Then we subtract it from the total amount of money Mark has
75$ - $15 = $60
Mark has 60$ remaining to spend on salmon
60 divided by 5 = 12
So he can buy 12 lb of salmon
In a survey of 1000 adults, 170 indicated that they were not confident that they will have enough saved to last through retirement. Write the fraction, in lowest terms, of adults who are not confident they will have enough saved to last through retirement.
please help 20 points
Answer:
a. Set up a ratio.
[tex] \frac{12g}{16mL} \\ [/tex]
b. Divide the numerator by the denominator to get the mass (in g) of 1 mL.
[tex] \frac{12g}{16mL} = \frac{3g}{4mL} \\ [/tex]
c. The density is 0.75 g/ mL
Tom wants to order tickets online so that he and three of his friends can go together to a water park. The cost of the tickets is $16.00 per person. This is also a $2.50 one-time service fee for ordering tickets online. Write an expression in terms of n that represents the cost for ordering n tickets online,
Answer:
16n+2.50
Step-by-step explanation:
find the sum of the following 2+4+6+8+.....+30
Answer:
50
Step-by-step explanation:
Equation: 2+4+6+8+30
Sum: 50
8+2=10
4+6=10
10+10=20+30=50.
Final answer: 50
3
Add. Write the expression below in simplest form.
(-2x + 10) + (-8x - 1)
Answer:
The answer is -10x + 9
Step-by-step explanation:
Combine like terms.
-10x + 9
Hoped this helped!
Could I get brainly?
Angela hiked 4 miles one day and 216 miles the next day. How many total miles did Angela hike?
Answer:
220
Step-by-step explanation:
216+4
The next day+ the first day=220
7x+3y=-21 in slope intercept form
Answer:
[tex]y= -\frac{7}{3}x -7[/tex]
Step-by-step explanation:
Answer:
y
=
−
7
3
x
−
7
Step-by-step explanation:
Brainliest?
The line passes through the point (-7,-5) and has slope of -8
Answer:
[tex]y=-8x-61[/tex]
Step-by-step explanation:
The slope-intercept form of the equation is y=mx+b where m is the slope and b is the y intercept. We know so far, that the slope is -8. We plug that in for m.
[tex]y=-8x+b[/tex]
Now, we need to find the y-intercept. The question gives us the point (-7,-5). We plug in -7 for x, and -5 for y.
[tex]-5=-8(-7)+b[/tex]
Then, we solve.
[tex]-5=56+b[/tex]
Subtract 56 from both sides.
[tex]-61=b[/tex]
Finally, we get this equation:
y=-8x-61