Answer:
44x/7
Step-by-step explanation:
Radius=r=xcm
Circumference=2πr
➜2πx
➜2×22/7×x
➜44/7×x
➜44x/7
3. Calculate the value of x in the figure to the right: (2 Points)
Answer:
x = 12
Step-by-step explanation:
When two chords intersect each other inside a circle, the products of their segments are equal.
------------------
2x = 6 * 4
2x = 24
Divide both sides by 2
x = 12
Solve for x.
9
2x-111
X
= [?]
Answer:
x=94
Step-by-step explanation:
I hope I'm correct. Here's my explanation: x+9 and 2x-111 would equal 180, hence the line (supplementary). So x+9+2x-111=180
x=94
hope this helps.
Step-by-step explanation:
x+9=2x-111( being corresponding angles )
x=2x-111-9
x-2x=-120
-x=-120
x=120
What is the midline equation of y = -4sin (2x - 7) + 3?
Step-by-step explanation:
Thank you this is your answerIn the triangle below,
y = [? ] cm. Round to the
nearest tenth.
15 cm
X
35°
909
Answer:
12.3
Step-by-step explanation:
You will use cosine to solve for y because you are given the hypontenuse and need to find the adjacent side.
cos 35 degrees = adjacent/hypontenuse
cos 35 = y/ 15
15( cos35 ) = y
y=12.287
=12.3
Binomial distributions
The proportion of eligible voters in the next election who will vote for the incumbent is assumed to be 52.5%. What is the probability that in a random sample of 430 voters, less that 49.6% say they will vote for the incumbent?
Answer: the vote will get 82.45%
Step-by-step explanation:
Which describes how the figure below was transformed?
Answer: Rotation
Step-by-step explanation: This is a rotation because the figure is rotated 90°. This is not a translation because it isn't moved to a different position. This is not a reflection because it isn't mirrored. This is not a dilation because the size didn't change. Therefor, it is a Rotation, because this figure was rotated 90°
Examples are below if you still don't quite understand.
The slope of the line below is -2. Write the equation of the line in point-slope
form, using the coordinates of the labeled point. Do not use parenthesis on
the y side.
Answer:
y=-2x-3
Step-by-step explanation:
Since the slope is -2, we can make an equation : y=-2x+b
Now plug in the point given to find b.
1=-2(-2)+b
1=4+b
b=-3
so, the equation is y=-2x-3
When Victoria goes bowling, her scores are normally distributed with a mean of 130 and a standard deviation of 11. What is the probability that the next game Victoria bowls, her score will be between 123 and 130, to the nearest thousandth?
Answer:
0.239 = 23.9% probability that the next game Victoria bowls, her score will be between 123 and 130
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean of 130 and a standard deviation of 11.
This means that [tex]\mu = 130, \sigma = 11[/tex]
What is the probability that the next game Victoria bowls, her score will be between 123 and 130?
This is the p-value of Z when X = 130 subtracted by the p-value of Z when X = 123. So
X = 130
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{130 - 130}{11}[/tex]
[tex]Z = 0[/tex]
[tex]Z = 0[/tex] has a p-value of 0.5
X = 123
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{123 - 130}{11}[/tex]
[tex]Z = -0.64[/tex]
[tex]Z = -0.64[/tex] has a p-value of 0.2611
0.5 - 0.261 = 0.239
0.239 = 23.9% probability that the next game Victoria bowls, her score will be between 123 and 130
Select the correct answer. Consider functions fandg f(3) = 5.2.1, for 3 + 2 and = + -6 4:2 – 16: + 16 96) = 4+ 48, for : * -12 Which expression is equal to 10) (+? OA . OB. 1 Ос. OD. 5+2 6
Answer:
A
Step-by-step explanation:
Consider the sequence of steps to solve the equation: 3(x - 4) + 5x 9x - 36
Given => 3(x-4)+ 5x 9x - 36
Step 1 = 3x - 12 + 5x-9x - 36
Step 2 -> 3x + 5x - 12-9x - 36
Step 3 8x - 12 - 9x - 36
Step 48x - 8x - 12 - 9x - 8x - 36
Step 5 => 0 - 12 - x - 36
Step 6-12 - 36
Step 7-12 + 36 x - 36 + 36
Step 8 = 24 x +0
Step 9 = 24 - x
Which property yields Step 1?
3)
A)
Distributive Property
B)
Multiplicative Identity
Multiplication Property of Equality
Answer:
Distributive Property
Step-by-step explanation:
You are distributing 3 to x and -4
Plz help me well mark brainliest if correct!.,....
Answer:
6cm
Step-by-step explanation:
I did 24 divided by 4 since a square has 4 sides
Plz help me well mark brainliest if correct!!
you have the following coins in your pocket five quarters six dimes two nickels and 12 pennies what is the probability as a decimal you would draw a dime.
Answer: The probability of you drawing a dime is 0.24
Step-by-step explanation:
5 quarters, 6 dimes, 2 nickels, 12 pennies
5+6+2+12= 25
6/25= 0.24 or 24%
Answer:
0.24
Step-by-step explanation:
P(dime) = 6/25 which is 0.24
Simplify: −2x−y−2z+4x−2y+3z
Answer:
2x - 3y + z
Step-by-step explanation:
hope this helped :]
Hyo spent $48.84 for a gold-plated trophy that costs $37 per pound. How much did the trophy weigh?
Add and check 5,655+7,978
Answer: 13,633
Step-by-step explanation: 5,655+7,978=13633
Check: 13,633- 5,655=7,978
Last week, the daily low temperatures for a city, in degrees Celsius, were 5, 8, 6, 5, 10, 7, and 1. What was the average low temperature? Show your reasoning.
Solve for line segment AB
Answer:
AB = 32
Step-by-step explanation:
Given:
AD = 40
CD = 9
Required:
Find the length of segment AB
Solution:
BC and CD are radius of the circle. Therefore,
BC = CD = 9
AB = AC - BC
AB = AC - 9
We need to find AC
Since AD is tangent, CD is perpendicular to AD, this means that <D is a right angle. This makes ∆ADC a right triangle.
Therefore, we can apply Pythagorean theorem to find AC.
Thus:
AC² = AD² + CD²
AC² = 40² + 9²
AC² = 1,681
AC = √1,681
AC = 41
Let's find BC:
AB = AC - 9
Plug in the value of AC
AB = 41 - 9
AB = 32
Help me on this question please
We need to split it into 2 + 3 + 5 = 10 'parts', meaning each 'part' is 18 KD.
Thus, Ahmed receives 18(2) = 36 KD, Qasim receives 18(3) = 54 KD, and Omer receives 18(5) = 90 KD
What value of X makes the equation true -7x - (-5-x) = -9(2x-1) -
Answer:
x=17/9
Step-by-step explanation:
-7x-(-5-x)=-9(2x-1)
= -7x+5x+x= -18x+9
= -x= -18x+9
+18x +18x
=17x=9
x= 17/9
Hope this helps!
Answer:
-7x -(-5-x)=9(2x-1)
-7x+5x+x=18x+9
-x=-18x+18x
17x=9
x=17/9
Step-by-step explanation:
hopes this help
Jonah wants to make a one-sample
z
zz interval using
99
%
99%99, percent confidence to estimate what proportion of silicon wafers at his factory are defective. He wants the margin of error to be no more than
3
%
3%3, percent. A previous study suggests that about
6
%
6%6, percent of these wafers are defective.
If we assume
p
^
=
0.06
p
^
=0.06p, with, hat, on top, equals, 0, point, 06, what is the smallest sample size required to obtain the desired margin of error?
Answer:
416
Step-by-step explanation:
Kahn Academy
A circle has a diameter of 12cm. Find the arc length if the central angle is 37°.
Round to the nearest tenth.
Answer:
40
Step-by-step explanation:
37 is greater than five and the next number with a zero would be 40
find the midpoint of (-1,2) (-4,-9)
Answer:
use this info to help answer it
Measure the distance between the two end points, and divide the result by 2. This distance from either end is the midpoint of that line. Alternatively, add the two x coordinates of the endpoints and divide by 2. Do the same for the y coordinates.
Please Help! Lateena solved an equation. Explain why or why not her solution is correct.
Answer:
Actually her answer is wrong because it's a quodratic equation.
Minutes No. of Homework
Problems
2 or Less
3-4
5-6
7-8
9 or more 8
4
2
0
3
What is the number of homework problems that took less than 5 minutes in the given table?
A.
4
B.
14
C.
12
D.
8
20. Solve for x.
25
12
20
Answer:
x = 9.6
Step-by-step explanation:
25x = 12 x 20
25x = 240
x = 9.6
1) Kyle puls $740 in the
bank for 5.5 years with a
27% interest rate. How
much money does he
have in the bank all
together after 5.5
years
Answer:
1,838.90
Step-by-step explanation:
Annual interest rate 27%=0.27 per year.
Solving our equation:
A = 740(1 + (0.27 × 5.5)) = 1838.9
A = $1,838.90
In a completely randomized experimental design involving three assembly methods, 30 employees were randomly selected and 10 were assigned to each of the three methods. The time required to complete the task was recorded. The following information is provided: MSTR = 45.89 and MSE = 6.27. What is the critical value of F if we want to determine whether the means of the three populations are equal at the 5% level of significance?
Answer:
The answer is "3.35".
Step-by-step explanation:
Treatment independence degree
[tex]= 3 - 1 \\\\= 2[/tex]
Grade of error independence
[tex]= 30 - 3 \\\\= 27[/tex]
[tex]\alpha = 0.05[/tex]
F is the critical value[tex]= 3.35[/tex]
with the use of the critical value table F or the Excel command [tex]FINV(0.05,2,27)[/tex]
The Sine Function
Your sine regression model for a given problem is
y = 0.500 sin (0.222x - 1.509) + 0.521.
Use your model to predict y(95). Round your answer to the nearest hundredth.
a. y(95) = 0.27
b. y(95) = 0.47
c. y(95) = 0.17
d. y(95) = 0.85
Please select the best answer from the choices provided
Answer:
D. y(95) = 0.85
Step-by-step explanation:
I calculated it logically
Which expression is equivalent to 7t + 2)?
1. 7t + 14
2. 7t +9
3. t+9
4. t+14
Answer:
1.
Step-by-step explanation:
7 * t = 7t
7 * 2 = 14
7(t+2) = 7t + 14