Answer:
-> 5/8
Step-by-step explanation:
-> 3/8+1/4
= (3/8 ). 1 + (1/ 4) . 2
= 3/8 + 2/8
= 5/8
find the value of x in the triangle shown
Answer:
12 or 16
Step-by-step explanation:
because it was a good thing for you to be here with us today so I don't have any money in my hands and you don't want me back in
hellllllppppppp pleaseeeeee
Find the slope of the line passing through the points (2, 5) and (0, -4)
A.−2/9
B.9/2
C.−9/2
D.2/9
20% of 50 please?
thank usm
Answer:
10
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
This is writing equations. Matt's dog weighs 30 pounds. His dog 20 more pounds than 4 times his cat. What is the weight of the cat?
Answer:
1.5
Step-by-step explanation:
30÷20=1.5
1) Refer back to Lesson 2, Part A. Assume that the average shoulder width of the people in the line was 1.325 feet. How long would the line be if it contained 10 million people? Express your answer in feet.
Answer:
13,250,000 feet or 13.25 million feet
Step-by-step explanation:
Each person in the line has a shoulder width of 1.325 feet.
For each person, there is a width of 1.325 ft. There are 10 million people.
Since:
10 million = 10,000,000
The total length must be:
[tex]1.325 * 10,000,000[/tex]
[tex]1.325 * 10,000,000 = 13,250,000[/tex]
Answer: 13,250,000 feet or 13.25 million feet
How do you do this question?
Answer:
33/16
Step-by-step explanation:
x = y⁴/8 + 1/(4y²), 1 ≤ y ≤ 2
dx/dy = y³/2 − 1/(2y³)
Arc length is:
s = ∫ ds
s = ∫ √(1 + (dx/dy)²) dy
s = ∫₁² √(1 + (y³/2 − 1/(2y³))²) dy
s = ∫₁² √(1 + y⁶/4 − ½ + 1/(4y⁶)) dy
s = ∫₁² √(½ + y⁶/4 + 1/(4y⁶)) dy
s = ∫₁² ½ √(2 + y⁶ + 1/y⁶) dy
s = ∫₁² ½ √(y³ + 1/y³)² dy
s = ∫₁² ½ (y³ + 1/y³) dy
s = ½ (y⁴/4 − 1/(2y²)) |₁²
s = ½ (16/4 − 1/8) − ½ (1/4 − 1/2)
s = 33/16
Write h(x) = 3x2 – 12x in vertex form.
Answer:
y=3(x-2)^2-12
please let me know if its right.
A contractor has submitted bids on three state jobs: an office building, a theater, and a parking garage. State rules do not allow a contractor to be offered more than one of these jobs. If this contractor is awarded any of these jobs, the profits earned from these contracts are: million from the office building, million from the theater, and million from the parking garage. His profit is zero if he gets no contract. The contractor estimates that the probabilities of getting the office building contract, the theater contract, the parking garage contract, or nothing are , , , and , respectively. Let be the random variable that represents the contractor's profits in millions of dollars. Write the probability distribution of . Find the mean and standard deviation of . Round your answers to three decimal places, if required.
Answer:
The following are the answer to this question:
Step-by-step explanation:
In the given question the numeric value is missing which is defined in the attached file please fine it.
Calculating the probability of the distribution for x:
[tex]\to f(x) = 0.19\ for \ x=14\\\\\to f(x) = 0.29 \ for\ x=7\\\\\to f(x) = 0.38\ for \ x=1\\\\\to f(x)=0.14 \ for \ x=0\\[/tex]
The formula for calculating the mean value:
[tex]\bold{ E(X)= x \times f(x)}[/tex]
[tex]=14 \times 0.19+7 \times 0.29+1 \times 0.38+0\times 0.14\\\\=2.66 + 2.03+0.38+ 0\\\\=5.07[/tex]
[tex]\bold{E(X^2) = x^2 \times f(x)}[/tex]
[tex]=14^2 \times 0.19+7^2 \times 0.29+1^2 \times 0.38+0^2 \times 0.14 \\\\=196 \times 0.19+ 49 \times 0.29+1 \times 0.38+0 \times 0.14\\\\= 37.24+ 14.21+ 0.38+0 \\\\=51.83[/tex]
use formula for calculating the Variance:
[tex]\to \bold{\text{Variance}= E(X^2) -[E(X)]^2}[/tex]
[tex]= 51.83 - (5.07)^2\\\\= 51.83 - 25.70\\\\=26.13[/tex]
calculating the value of standard deivation:
Standard Deivation (SD) = [tex]\sqrt{Variance}[/tex]
[tex]= \sqrt{26.13} \\\\=5.111[/tex]
Molly categorized her spending for this month into four categories: Rent, Food, Fun, and Other. The percents she spent in each category are pictured here.
Rent
27%
Food
21%
Fun
16%
Other
36%
If Molly spent a total of $2800 this month, how much did she spend on each of the following categories?
Answer:
whats the question
Step-by-step explanation:
5. Find the value of x and y
the value is find the valu of y and it willl be x
Answer:
(2x +12) + (3x +23) = 180
5x + 35 = 180
5x = 145
x = 29
2(29) + 12
58 + 12
70
180 - 70 = 110
y = 110
or
3(29) + 23
87 + 23
110
corresponding angles are equal
y = 110
You buy one shirt for $22 and two pairs of shorts. Your total cost is $56. Assuming both pairs of shorts cost the same
amount, what is the price of one palr of shorts?
What is the correct equation and solution for this problem?
2 x - $22 = $56, x= $34
2 x + $22 = $56: x= $34
2 x + $22 = $56: x= $17
2 x - $22 = $56: x= $17
let the cost of sorts be x
then 2x + 22 = 56
2x = 56 - 22
x = 34/2
x = 17
So, it is C :)
Answer:
2 x + $22 = $56: x= $17
Step-by-step explanation:
What is the product of 1 5/7 * 3 2/3?
Answer:
GJG
Step-by-step explanation:
HGJG
A restaurant customer wants to rate 6 different dishes that were being served. In how many ways can the customer rate the 6 dishes?
Answer:
720
Step-by-step explanation:
As the order of the rating does not matter, we have a case of permutation.
P(6) = 6! = 6.5.4.3.2.1 = 720
Todd has 8 pounds of soil to use in his flower pots his small flower pot needs 2 1/2 pounds of soil is large flower pot needs 4 1/4 pounds of soil how much soil will Todd have left after filling both his flower pot
Answer:
1.25
Step-by-step explanation:
2.5+4.25+x=8
-2.5-4.25 -6.75
x=1.25
Answer:
2 1/4
Step-by-step explanation:
100/50 * 10
give the answer
Step-by-step explanation:
100/50:2
100/50*10:20
Hope this help you☺️
Answer:
20
Step-by-step explanation:
Point S is on line segment RT. Given RT=4x, ST = 5x-10, and RS = 6 determine the numerical length of ST.
Answer:
ST=10
Step-by-step explanation:
Find the height, h, of the triangle shown.
h =
A. 2c^2-4c+8
B. 2c^2+4c+8+(32/(c+2))
C. 4c^2+8c+16+(32/(c+2))
D. 4c^2-8c+16
Answer:
B
Step-by-step explanation:
Find mzy.
X
(6x-23)
(4x + 9)
Z
m_Y =
Answer:
6×+4×10×-23=9-13=-4If 16, X + 2, 1 are the first three terms of a
geometric sequence, find all possible values
of x.
Answer:
X=2 or X=-6
Step-by-step explanation:
The common ratio is either 1/4 or -1/4. Since if we divide 16 by 4 we get 4 and we divide that by 4 get 1 or if we divide 16 by -4 we get -4 and that by -4 to get 1.
A more detailed math explanation:
ar^2/a=1/16
r^2=1/16
r=1/4 or -1/4
This means the second term is either 16(1/4)=4 or 16(-1/4)=-4.
So,
X+2=4 or X+2=-4
Subtract 2 on both sides:
X=4-2 or X=-4-2
X=2 or X=-6
Answer: x = 2 or x = -6
Step-by-step explanation:
16, x + 2, 1
Notice that a₁ to a₃ is 2 ratios.
16 · r² = 1
r² = 1/16
r = ± 1/4
If r = 1/4, then a₂ = 16/4
= 4
4 = x + 2 → x = 2
If r = - 1/4, then a₂ = 16/-4
= -4
-4 = x + 2 → x = -6
(Ch10.7) True or False? Based on a random sample of 13 tire changes (n1), the mean time to change a tire on a Boeing 777 has a mean of 59.5 minutes with a standard deviation of 7.4 minutes. For 10 tire changes (n2) on a Boeing 787, the mean time was 64.3 minutes with a standard deviation of 13.2 minutes. In testing equal variances in a "two-tailed" F-test at α=0.1, we should reject the null hypothesis of equal population variances.
Answer:
Yes its true
Calculated value F = 3.264 > 2.32 at 0.1 level of significance
Null hypothesis is rejected
alternative hypothesis is accepted
The population variances are not equal
Step-by-step explanation:
Step(i):-
Given first sample size 'n₁ = 13
Mean of the first sample = 59.5 min
Standard deviation of the first sample (S₁) = 7.4min
Mean of the second sample = 64.3 min
Standard deviation of the second sample( S₂ ) = 13.2min
Null hypothesis :H₀: σ₁² = σ₂²
Alternative Hypothesis : H₁ : σ₁² ≠ σ₂²
Degrees of freedom
ν₁ = n₁ -1 = 13 -1 = 12
ν₂ = n₂ -1 = 10 -1 = 9
Step(ii):-
Null Hypothesis H₀ : σ₁² = σ₂²
Alternative Hypothesis : H₁ : σ₁² ≠ σ₂²
Test statistic
[tex]F = \frac{S_{2} ^{2} }{S^{2} _{1} }[/tex]
Given sample standard deviations are given
we have to determine the Population variances S₁² and S₂²
n₁ s₁² = (n₁-1) S₁²
13 ( 7.4)² = ( 13-1) S₁²
S₁² = 59.32
n₂ s₂² = (n₂-1) S₂²
10 ( 13.2)² = ( 10-1) S₂²
S₂² = 193.6
Step(iii):-
Test statistic
[tex]F = \frac{S_{2} ^{2} }{S^{2} _{1} } = \frac{193.6}{59.3} = 3.264[/tex]
F = 3.264
F( 12 , 9 ) = 2.32
Calculated value F = 3.264 > 2.32 at 0.1 level of significance
Null hypothesis is rejected
alternative hypothesis is accepted
The population variances are not equal
Need help.
Enter an inequality that represents the graph in the box.
what is 8640 minutes, in days?
Answer:
8,640 Minutes = 6 Days
Step-by-step explanation:
8640 minutes/60 minutes per hr=144 hours
144 hours/24 hrs a day=6 days
Hernando ate 2/8 of a pizza for a dinner. He gave his 6 friends the rest of the pizza and told them to share it equally
Answer:
you would each give them one piece i think
Step-by-step explanation:
What are three steps to use to research relevant information on the internet?
Answer:
Step 1: Questioning --- Before going on the Internet, students should structure their questions.
Step 2: Planning --- Students should develop a search strategy with a list of sites to investigate.
Step 3: Gathering --- Students use the Web to collect and gather information.
Step 4: Sorting & Sifting --- Students analyze and categorize the data they gathered on the Web.
Step 5: Synthesizing --- Students integrate the information into the lesson, and draw conclusions.
Step 6: Evaluating --- Students assess the results, and if necessary, begin the process again.
Step-by-step explanation:
A linear function is given by formula y= 1 2 x−2. d State the slope of the line.
Answer:
The slope is 1/2.
Step-by-step explanation:
All you have to do is see what is being multiplied by x, and that will be your slope. The number after is your "b"
a line is graphed in the coordinate plane and two slope triangles are shown
3) Evaluate for f(4)
f(x) = (x - 2)3 – 6
Answer: f(x) = 0
Step-by-step explanation:
when f(x) = 4 you plug in 4 wherever you see an x value
so it would be
f(x) = (4 - 2)3 - 6
which gives you a new answer
f(x) = 12 - 6 - 6
f(x) = 0
What are the new coordinates of the figure above if it is dilated by a scale factor of , with the origin as the center of dilation?
Answer:
could you show a picture and repost thx
Step-by-step explanation:
Which of the following statements best describes the value of the expression 18x – 35, when x = 2?
A. The result is not a whole number.
B. The result is a prime number.
C. The result is a composite number.
D. The result is a whole number that is neither prime nor composite.
Answer:
D
Step-by-step explanation:
Let's plug 2 in for x:
18 * 2 - 35 = 36 - 35 = 1
Now, look at the answer choices:
A) Well, 1 is a whole number; it's not a fraction or a decimal. So eliminate A.
B) 1 is not a prime number; the smallest prime number is 2. So eliminate B.
C) 1 is also not a composite number; the smallest composite number is 4. So eliminate C.
D) This is true. 1 is a whole number, but it's not prime or composite, as seen above.
Thus, D is the answer.
~ an aesthetics lover
Answer:
D
Step-by-step explanation: The result is a whole number that is neither prime nor composite.
A company currently has 200 units of a product on hand that it orders every 2 weeks when the salesperson visits the premises. Demand for the product averages 20 units per day with a stand deviation of 5 units. Lead time for the product to arrive is 7 days. Management has a goal of a 95% probability of not seeking out for this product. The salesperson is due to come in late this afternoon when 180 units are left in stock (assuming that 20 are sold today). How many units should be ordered
Answer: 289 units
Step-by-step explanation:
Given the following :
Inventory (I) = 180
Lead time (L) = 7 days
Review time (T) = 2 weeks = 14 days
Demand (D) = 20
Standard deviation (σ) = 5
Zscore for 95% probability = 1.645
Units to be ordered :
D(T + L) + z(σT+L)
(σT+L) = √(T + L)σ²
= √(14 + 7)5²
= √(21)25
= 22.9
D(T + L) + z(σT+L) - I
20(14 + 7) + 1.645(22.9 + 7) - I
= 420 + 49.1855 - 180
= 289.1855
= 289 quantities
