Answers
Answer:
x=2
CE=58
Step-by-step explanation:
10x+9=18x-7
16=8x
x=2
10(2)+9+18(2)-7=
20+9+36-7=58
Related Questions
a polygon has 10080° as the total interior angle how many sides has the polygon
Answers
The formula for the sum of the interior angles of a polygon is (n - 2) * 180. In this formula, N is the number of sides. So, to find the number of sides that a polygon with an interior angle measure of 10080 has, we'll set the formula equal to 10080.
10080 = (n - 2) * 180
Divide both sides by 180
56 = n - 2
Add 2 to both sides
n = 58
Hope this helps!! :)
Answer:
58 sides
Step-by-step explanation:
The sum of the interior angles of a polygon is 10,080°
n = the number of sides
(2n - 4)90 = 10080
2n - 4 = 10080/90 = 112
2n = 116
n = 58.
Suppose the weights of Farmer Carl's potatoes are normally distributed with a mean of 8.0 ounces and a standard deviation of 1.1 ounces.
(a) If 5 potatoes are randomly selected, find the probability that the mean weight is less than 9.3 ounces? Round your answer to 4 decimal places.
(b) If 6 potatoes are randomly selected, find the probability that the mean weight is more than 9.0 ounces? Round your answer to 4 decimal places.
Answers
Answer:
a) 0.9959 = 99.59% probability that the mean weight is less than 9.3 ounces
b) 0.0129 = 1.29% probability that the mean weight is more than 9.0 ounces
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
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 zscore 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 pvalue, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Mean of 8.0 ounces and a standard deviation of 1.1 ounces.
This means that [tex]\mu = 8, \sigma = 1.1[/tex]
(a) If 5 potatoes are randomly selected, find the probability that the mean weight is less than 9.3 ounces?
[tex]n = 5[/tex] means that [tex]s = \frac{1.1}{\sqrt{5}} = 0.4919[/tex]
This probability is the pvalue of Z when X = 9.3. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{9.3 - 8}{0.4919}[/tex]
[tex]Z = 2.64[/tex]
[tex]Z = 2.64[/tex] has a pvalue of 0.9959
0.9959 = 99.59% probability that the mean weight is less than 9.3 ounces
(b) If 6 potatoes are randomly selected, find the probability that the mean weight is more than 9.0 ounces?
[tex]n = 6[/tex] means that [tex]s = \frac{1.1}{\sqrt{6}} = 0.4491[/tex]
This probability is 1 subtracted by the pvalue of Z when X = 9. So
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{9 - 8}{0.4491}[/tex]
[tex]Z = 2.23[/tex]
[tex]Z = 2.23[/tex] has a pvalue of 0.9871
1 - 0.9871 = 0.0129
0.0129 = 1.29% probability that the mean weight is more than 9.0 ounces
An item originally costs $175.00. The item is now on sale for 99.75. What percent is the sale price for the original price? Is this an example of percent increase or decrease? Explain how you know?
Answers
Answer:
Discount percent = 43% off
Discount amount (money saved) = $75.25
Step-by-step explanation:
To find the discount percentage:
List price ($175) minus the sale price ($99.75) then divided by the list price ($175) and multiplied by 100 to get the discount percent of 43%.
To find how much money was saved:
List price ($175) minus sale price ($99.75) to get the amount saved, which savings are $75.25 in this case.
I hope this helps :)
I
Pls pls answer quick I will give brainly
Answers
Answer:
x>9/5
Step-by-step explanation:
x>9/5
Use these similar triangles on the coordinate plane to determine the equation of a straight line with a slope of 5/3 that passes through the orgin.
Answers
Answer:
y=5/3x
Step-by-step explanation:
You deposit $3000 each year into an account earning 2% interest compounded annually. How much will you have in the account in 20 years?
Answers
Answer:
$72891.1094
Step-by-step explanation:
This method of saving is called sinking fund.
Future value (FV) = A*([tex]\frac{[(1+r)^{n} - 1]}{r}[/tex])
Where A is the amortization, r is the rate and n the number of years.
A = $3000
r = 2% = 0.02
n = 20
FV = 3000 * [tex](\frac{[(1.02)^{20} - 1]}{0.02})[/tex]
= 3000 * 24.2973698
= 72891.1094
FV = $ 72891.1094
The amount that would be in the account after 20 years is $72891.1094
Pls help I will give brainiest answer.
Answers
Answer:
1) D
2) A
Step-by-step explanation:
To charter a fishing boat for 3 hours the captain charges a base fee of 45.00 plus 15.00 per person using variables construct a function that models the total cost of a 3-hour charter in terms of the number of people in your function. Define any variables you use. What is the correct interpretation of the initial value snd the rate of change
Answers
Answer:
$90.00
Step-by-step explanation:
Given
[tex]c = 45.00[/tex]--- base fee
[tex]m = 15.00[/tex] --- rate
[tex]x = 3[/tex] --- individuals
Required
Determine the total amount paid (y)
The relationship between the variables is:
[tex]Total = Base\ Fee + Rate * Individuals[/tex]
[tex]y = c + mx[/tex]
This gives:
[tex]y = 45.00 + 15.00 * 3[/tex]
[tex]y = 45.00 + 45.00[/tex]
[tex]y = 90.00[/tex]
Hence, the amount is $90.00
What are the answers to 3 and 4?
Answers
Reply if you need explaination
Which is the closest synonym for the word productive?
Press enter to interact with the item, and press tab button or down arrow until reaching the Submit button once the item is selected:
A.) Mysterious
B.) Cheerful
C.) Confident
D.) Valuable
Answers
Answer:
The answer would be letter D. Valuable.
What is 472 x 82 i also need your thiniing process
Answers
Answer:
472×82=38704
Step-by-step explanation:
Prime factorization:
2^4×41×59
I have this Work Sheet and I need help!
Answers
Hope it helps u mate....
What property or theorrm would we have to use on these triangles to make them congruent
by ASA shortcut?
Answers
==============================================================
Explanation:
The diagram shows that we have two pairs of angles that are congruent. The angles with the single red arc pair up and are congruent, and the angles with the double arcs are the other congruent pair.
That takes care of the two "A"s in "ASA". As you can probably guess or know by now, "A" stands for "angle".
The only thing we need is the info about a pair of sides if they are congruent or not. In this case, we can see that the horizontal sides of the triangles are congruent since they overlap perfectly, or they are a shared common side. We use the reflexive property to say that "any segment is congruent to itself".
A set of buttons sells for $2.75 and costs $0.55 to make. Twenty percent of the profit (the difference between the purchase price and the amount it costs to make) from each set of pencils goes to RMS. If 500 sets are sold, what is the amount of money that will go to the school? i will give brainlyest A
$195.00
B
$220.00
C
$275.00
D
$310.00
Answers
Answer: b
Step-by-step explanation: I am 95% sure
x=[ ? ]°
X
х
please help urgent
Answers
Answer:
since all sides are equal 3x = 180
you find the 180÷3
which is 60
Which equation represents a line with slope -1/2
that passes through (-3, 4) ?
Answers
Answer:
y=-1/2x+5/2
Step-by-step explanation:
y-4=-1/2(x-(-3))
y-4=-1/2(x+3)
y-4=-1/2x-3/2
y=-1/2x-3/2+4
y=-1/2x+5/2
5 + 4x - 2x = 8x + 11 + 12
Explain step by step PLEASE
Answers
5
+
4
x
−
2
x
5+4x−2x to
5
+
2
x
5+2x.
5
+
2
x
=
8
x
+
11
+
12
5+2x=8x+11+12
2 Simplify
8
x
+
11
+
12
8x+11+12 to
8
x
+
23
8x+23.
5
+
2
x
=
8
x
+
23
5+2x=8x+23
3 Subtract
5
5 from both sides.
2
x
=
8
x
+
23
−
5
2x=8x+23−5
4 Simplify
8
x
+
23
−
5
8x+23−5 to
8
x
+
18
8x+18.
2
x
=
8
x
+
18
2x=8x+18
5 Subtract
8
x
8x from both sides.
2
x
−
8
x
=
18
2x−8x=18
6 Simplify
2
x
−
8
x
2x−8x to
−
6
x
−6x.
−
6
x
=
18
−6x=18
7 Divide both sides by
−
6
−6.
x
=
−
18
6
x=−
6
18
8 Simplify
18
6
6
18
to
3
3.
x
=
−
3
x=−3
What is the slope of the line?
y+3 = -4(2 + 7)
Answers
Answer:-4
Step-by-step explanation:
The area of a parallelogram of base 10 cm and height 6.2 cm is
(a) 6.2 cm
(b) 31 cm
(C) 62 cm (d) 620 cm
Answers
Answer:
62 cm
Step-by-step explanation:
It's basically just a rectangle, so area formula for rectangle is base x height
Please solve the question below
Answers
Answer:
angle ERT = angle YUP
Step-by-step explanation:
Solve the triangle. Round your answers to the nearest tenth.
Answers
Answer:
Area = 80 units²
Step-by-step explanation:
Given that:
a = 19 units
b = 9 units
c = 97°
Find the area of the triangle!
Area = ab(sin(c))/2
Area = [19×9×(sin(97))]/2
Area = 84.86 units²
Area = 80 units² ✅
______________
#IndonesianPride
- kexcvi -
What is the difference between a savings and a checking account? HELPPP?!
1.A checking account creates interest.
2.A savings account creates Interest.
3.A savings account lets you take out as much money as you want as many times as you want.
4.Both accounts are the sam.
Answers
Answer:
3
Step-by-step explanation:
Hello! Will someone please help me with expanding and simplifying this?:
3(m+2) + 4(6+m)
Answers
=============================================
Work Shown:
3(m+2) + 4(6+m)
3m+6 + 24 + 4m
(3m+4m) + (6+24)
7m+30
------------
Explanation:
In the second step, I used the distribution rule a*(b+c) = a*b+a*c. We multiply the outer term by every term inside. So for instance 3(m+2) = 3*m+3*2 = 3m+6. A similar situation applies to 4(6+m) as well. Afterward, I grouped and combined like terms.
We can think of 3m+4m = 7m as saying "I have 3 maps and someone gave me 4 more maps, so that means I have 3+4 = 7 maps now". The m is a place holder for any number.
A color printer prints 10 pages in 4 minutes. How many minutes does it take per page?
Answers
Answer:
2/5 minute OR 24 seconds
Step-by-step explanation:
4/10 = 2/5 minute
Hope that helps!
Which system has (3,0) as a solution?
- x + y =-1
3x – 2y = 5
3x + 2y = 9
x – 4y = 3
Option 1
Option 2
x+y = 3
x - y = 0
2x + y = 12
x – 2y =- 3
Option 3
Option 4
Answers
Answer:
x+y=3
Assuming that the option 1 and 2 dont mean anything
Find f(-3)
Please help!
Answers
Answer:
-6
Step-by-step explanation:
anything for sangwoo
The numeric value of this expression is -6!
To find out what the value of this expression is, let's replace f(x) with f(-3) and perform the given math operations.[tex] \large \sf f(x) = 12 - 2x {}^{2} [/tex]
[tex] \large \sf f(-3) = 12 - 2\cdot (-3){}^{2} [/tex]
[tex] \large \sf f(-3) = 12 - 2\cdot 9 [/tex]
[tex] \large \sf f(-3) = 12 - 18 [/tex]
[tex] \boxed{ \boxed{{ \large \sf f(-3)=-6}}}[/tex]
Therefore, the result of this expression is f(-3)=-6. ✅
Match each equation on the left to the mathematical property it uses on the right
Answers
Answer:
attachment plz
Step-by-step explanation:
nothing is being seen
a) 7l - 15 = 6
b) 3j -18=3
c) 5k+7=32
d) 9m+11=74
e) 6n+12=72
f) 7r-8=41
j) 6q-12=84
h) 3k+7=46
I) 5m+12=72
k) 9n+9=72
l) 6r-8=40
m) 11q-10=89
Answers
b) j = 7
c) k = 5
d) m = 7
e)n = 10
f) r = 7
j) q = 16
h) k = 13
l) m = 12
k) n = 7
l) r = 8
m) q = 9
2.
Akeem is making juice for a class party. For every 1 litre of water, he uses 100 ml of juice
mix
If he uses 4 litres of water, how many ml of juice does he use?
Answers
Answer:
400ml of juice
Step-by-step explanation:
1 litre of water = 100ml of juice
4 litres of water =? ml of juice
to get from 1 litre to 4 litre of water you multiply by 4,so you do the same for the juice and multiply the juice by 4.
100×4=400
4 litres of water = 400ml of juice
The temperature of a piece of metal was 32°C. It was then lowered into a glass of
hot water and the temperature of the piece of metal rose to 36°С. Find the
percentage increase in the temperature of the piece of metal.
Answers
Answer:
12.5%
Step-by-step explanation:
Given that,
Initial temperature of a piece of metal = 32°C
Final temperature of the piece of metal = 36°С
We need to find the percentage increase in the temperature of the piece of metal. The percentage increase in any value is given by the relation as follows :
[tex]\%=\dfrac{|\text{final value-initial value}|}{\text{initial value}}\times 100\\\\=\dfrac{36-32}{32}\times 100\\\\=12.5\%[/tex]
So, the required percentage increase in the temperature of the piece of metal is equal to 12.5%.