this is my last question
Answer: B
Step-by-step explanation:because my teacher said she having trouble
identify an equation in point-slope form for the line perpendicular to y= 1/4x-7 that passes through (-2,-6)
Answer:
y= -4x -14
Step-by-step explanation:
y= 1/4x-7
y= -4x + b
-6 = -4(-2) + b
-6 = 8 + b
b = -14
European car company advertises that their
car gers 9.4 Kilometers per liter of gasoline. Convert
this figure to miles per galllon
Answer:
22.11 miles per gallon
Step-by-step explanation:
1 km = 0.621371 miles
1 litre = 0. 264172 gallon
Given
Mileage of car = 9.4 Milometers per liter of gasoline
Mileage of car = 9.4 Km/ litres
now we will use 0.621371 miles for Km and 0. 264172 gallon for litres
Mileage of car = 9.4 * 0.621371 miles/ 0. 264172 gallon
Mileage of car = 9.4 * 2.3521 miles/ gallon
Mileage of car = 22.11 miles/ gallon
Thus, 9.4 Km/litres is same as 22.11 miles per gallon.
A trapezoid with base lengths of 55 inches and 70 inches, and height 38 inches.
How much glass would it take to make the trapezoid-shaped car windshield shown?
Answer:
2375 square inches
Step-by-step explanation:
To calculate the amount of glass required to make the trapezoid-shaped car windshield, we need to find the area of the trapezoid.
The formula to calculate the area of a trapezoid is:
Area = (1/2) × (sum of bases) × height
In this case, the bases of the trapezoid are 55 inches and 70 inches, and the height is 38 inches.
Area = (1/2) × (55 + 70) × 38
= (1/2) × 125 × 38
= 0.5 × 125 × 38
= 2375 square inches
Therefore, it would take 2375 square inches of glass to make the trapezoid-shaped car windshield.
What is the product of 4.5 ⋅ 10^5 and 1.6 ⋅ 10^2?
Answer: 450000, 160
Step-by-step explanation:
4.5 ⋅ 10^5 =
4.5*100000=
4*100000+0.5*100000=
400000+50000=450000
1.6 ⋅ 10^2=
1.6*100=
1*100+0.6*100=
100+60=160
Among 12 metal parts produced in a machine shop, 3 are defective. If a random sample of three of these metal parts is selected, find the probability that this sample will contain at least two defectives.
Answer:
Step-by-step explanation:
\(reqd.~probability=\frac{3c_{2} +9c_{1} }{12c_{3} } +\frac{3c_{3} }{12c_{3} } \\=\frac{\frac{3 \times 2}{2 \times 1} +\frac{9}{1} }{\frac{12 \times 11 \times 10}{3 \times2\times1} } +\frac{\frac{3\times2\times1}{3\times2\times1} }{\frac{12 \times11\times10}{3 \times2\times1} } \\=\frac{3+9}{220} +\frac{1}{220} \\=\frac{13}{220}\)
Divide. 6 by 3/5 PLEASE LOL
Answer:
6 divided by 3/5 is 10
Step-by-step explanation:
Answer:
6 Divided by 3/5 is 10
Step-by-step explanation:
You can make 6 into a fraction by putting a one under it
6/1 =6
And cross multiply numerators to your denominators
6/1 times 3/5 = 30/3 ( 6 times 5= 30 and 3 times 1= 3)
Simplify
30/3= 10
Find the value of xif 3(x + 5 ) =-6
Answer:
-7
Step-by-step explanation:
A equation is given to us and we need to find out the value of x . The given equation is ,
\(\longrightarrow 3( x +5)=-6 \)
Simplify the parenthesis ,
\(\longrightarrow 3x + 3(5)=-6\)
Simplify,
\(\longrightarrow 3x +15 = -6\)
Subtracting 15 to both sides ,
\(\longrightarrow 3x =-6-15\)
Simplify,
\(\longrightarrow 3x = -21 \)
Divide both sides by 3,
\(\longrightarrow x = -7 \)
This is the required answer!
Translate the following statement into an equation and solve for y: "y divided by 27 is – 18."
Answer:
486÷27=-18
Step-by-step explanation:
you would divide 27 with numbers until you get -18
One brand of cola co fizz is sold in packs of 4*500ml for 2.50 another brand colo is sold in packs of 10 330mlfo $2 which brand is more expensive
Based on the given information, the second brand, Cola, is the more affordable option in terms of cost per milliliter compared to Co Fizz.
To determine which brand of cola is more expensive, we need to compare the cost per unit volume for each brand.
For the first brand, Co Fizz, a pack contains 4 bottles, and each bottle has a volume of 500 ml. The cost of the pack is $2.50. Therefore, the total volume in a pack is 4 * 500 ml = 2000 ml. To find the cost per milliliter (ml), we divide the total cost by the total volume: $2.50 / 2000 ml = $0.00125 per ml.
For the second brand, Cola, a pack contains 10 bottles, and each bottle has a volume of 330 ml. The cost of the pack is $2. Therefore, the total volume in a pack is 10 * 330 ml = 3300 ml. To find the cost per milliliter (ml), we divide the total cost by the total volume: $2 / 3300 ml ≈ $0.000606 per ml.
Comparing the two brands, we can see that the cost per milliliter for Co Fizz is $0.00125, while the cost per milliliter for Cola is approximately $0.000606.
Since the cost per milliliter for Co Fizz is higher than the cost per milliliter for Cola, it can be concluded that Co Fizz is more expensive in terms of price per unit volume.
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Is this a linear graph?
There is a line that includes the point (-5, 2) and has a slope of -3. What is its equation in slope-intercept form?
Answer:
y=-3x-13
Step-by-step explanation:
Answer:
1 .
Step-by-step explanation:
please i’ll fail if i don’t get this right. please i’ll give brainlyist The current temperature of 15°F below zero is 18°F below the high temperature of the day. What is the high temperature for the
day?
OA. 5°F
ов. 33°F
OC. 3°F
OD. 33°F
Answer:
I think its C
Step-by-step explanation:
Jim weighs 30 pounds less than Tom, and together they weigh 210 pounds. Let n = Tom's weight in pounds.
(n - 30) + n = 210
(n + 30) + n = 180
(n + 30) + n = 210
(n - 30) + n = 180
The equation that represents the given problem is (n-30) + n = 210. The correct option is the first option (n-30) + n = 210
Linear equationFrom the question, we are to write an equation for the given problem
From the given information,
n = Tom's weight in pounds
If Jim weighs 30 pounds less than Tom
Then,
Jim weighs (n - 30)
Thus,
The sum of their weight is
(n-30) + n
∴ (n-30) + n = 210
Hence, the equation that represents the given problem is (n-30) + n = 210. The correct option is the first option (n-30) + n = 210
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K
A random sample of 1008 adults in a certain large country was asked "Do you pretty much think televisions are a necessity or a luxury you could do without? Of the 1008
adults surveyed, 511 indicated that televisions are a luxury they could do without. Complete parts (a) through (e) below.
(a) Obtain a point estimate for the population proportion of adults in the country who believe that televisions are a luxury they could do without.
(Round to three decimal places as needed.)
The point estimate for the population proportion of adults in the country who believe that televisions are a luxury they could do without is 0.5069.
Is a survey population or sample?A population is described as a collection of people who belong to the same species and cohabit in a certain region. In order to survive throughout time, individuals of a population frequently rely on the same resources, are susceptible to the same environmental restrictions, and depend on the availability of other members.
A sample is a more limited representation of the population as a whole. It serves as a good sample for a study's population. The people who are invited to participate in surveys are considered the sample while conducting them.
Let assume,
x be the population who believe that televisions are a luxury
n is the random sample of adults.
So, x = 511, n = 1008
Thus, population, p = x/n
or, p = 511 /1008
or, p = 0.5069
Thus, The point estimate for the population proportion of adults in the country who believe that televisions are a luxury they could do without is 0.5069.
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You are choosing between two health clubs club a offers membership for a fee of $13 plus a monthly fee of $28 club B offers membership for a fee of $19 plus a monthly fee of $27 after how many months will the total cost of each health club be the same? What will be the total cost for each club?
To determine when the total cost of each health club will be the same, we can set up an equation and solve for the number of months.
Let's assume the number of months is represented by 'x'.
For Club A, the total cost is given by:
Total cost of Club A = $13 (one-time fee) + $28x (monthly fee)
For Club B, the total cost is given by:
Total cost of Club B = $19 (one-time fee) + $27x (monthly fee)
To find the number of months when the total cost is the same, we set the two equations equal to each other:
$13 + $28x = $19 + $27x
Simplifying the equation, we get:
$28x - $27x = $19 - $13
$x = 6
Therefore, after 6 months, the total cost of each health club will be the same.
To find the total cost for each club after 6 months, we substitute the value of 'x' back into the equations:
Total cost of Club A after 6 months = $13 + $28(6) = $13 + $168 = $181
Total cost of Club B after 6 months = $19 + $27(6) = $19 + $162 = $181
So, the total cost for both Club A and Club B will be $181 after 6 months.
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1 2/3 divided by 1 1/4
1 2/3 = 5/3
1 1/4 = 5/4 -----------> flip this one to make it multiplication
5/3*4/5 = 5*4 / 3*5 = 20/15 = 4/3 = 1 1/3
Answer: 1 1/3 or 4/3 as an improper fraction
Step-by-step explanation: keep, change, flip :D lol
1. 2x-y≤-6
2. 5x+4y ≥20
Answer
2x-y <or =-6
2x<or=-6+y
divide both sides by 2
x<or=1/2y+3
5(1/2y+3)+4y>or=20
5/2y+15+4y>or=20
5/2y+4y>or=20-15
13/2y>or=5
divide both sides by 2/13
y>or=10/13
2x-10/13<or=-6
2x<or=-6+10/13
2x<or=-68/13
divide both sides by 2
x< or =-34/13
I need help with this please help me
Answer: A
Step-by-step explanation:
The three angles in a triangle add to \(180^{\circ}\). Therefore, each angle measures \(\frac{180^{\circ}}{3}=60^{\circ}\).
An actuarial study finds that in a sample of 2000 18-year-old drivers, 124 are involved in an accident.
cost of such an accident to the insurance company is $15 000. If the company wants to make a 20% profit on policies, what should they charge 18-year-old drivers?
Answer: Let's start by calculating the probability that an 18-year-old driver is involved in an accident:
P(accident) = 124/2000 = 0.062
Let's assume that the insurance company pays the full cost of the accident, which is $15,000. Then the expected cost of covering one 18-year-old driver is:
Expected cost = P(accident) x Cost of accident = 0.062 x $15,000 = $930
If the insurance company wants to make a 20% profit on policies, they need to charge a premium that covers their expected cost plus their desired profit. The premium, denoted by P, can be calculated as follows:
P = (Expected cost + Desired profit) / (1 - Profit margin)
where Profit margin is the percentage of the premium that represents the profit. In this case, Profit margin is 20%, or 0.20.
Substituting the values we have calculated, we get:
P = ($930 + 0.20 x $930) / (1 - 0.20)
= $1,236.00
Therefore, the insurance company should charge 18-year-old drivers a premium of $1,236.00 to make a 20% profit on policies.
Step-by-step explanation:
Name the parent function of the equation y=x-5
Answer:
Linear
Step-by-step explanation:
A soup recipe makes 6 cups. How many people does it serve if each serving is of a cup
Answer:
8
Step-by-step explanation:
100 Points! Geometry question. Photo attached. Please show as much work as possible. Thank you!
The value of side TS is,
⇒ TS = 28
First, we are going to divide the figure and named new points X and Y as:
Now, we know that TS is the sum of TX and XS.
TS = TX + XS
Additionally, TX has the same length of HJ, so:
TX = HJ = 14
Now, we want to know the length of YK, and we can calculate it using the following equation:
LK = LY + YK
LY = HJ,
so, LY = 14
And, 42 = 14 + YK
42 - 14 = YK
28 = YK
Finally, since T and S are midpoints, the length of XS is the half of the length of YK. It means that XS is:
XS = YK/2
XS = 28/2
XS = 14
Therefore, TS is equal to:
TS = TX + XS
TS = 14 + 14
TS = 28
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look at the picture
Answer:
C
Step-by-step explanation:
x²-9x<-8
x²-9x+(-9/2)²<-8+(-9/2)²
(x-9/2)²<-8+81/4
(x-9/2)²<(-32+81)/4
(x-9/2)²<49/4
|x-9/2|<7/2
-7/2<x-9/2<7/2
add 9/2
9/2-7/2<x-9/2+9/2<7/2+9/2
2/2<x<16/2
1<x<8
Bookwork code: N84
Look at the poster below showing the price of pencils in a stationery shop.
Annabel wants to buy exactly 76 pencils. What is the lowest amount she can
pay?
Give your answer in pounds (£).
spar
..
Pencils for sale!
30p each
Pack of 10
pencils for £2
Based on mathematical operations, the lowest amount that Annabel can pay for pencils is $15.20
How is the lowest amount determined?The lowest amount that Annabel can pay for pencils can be determined using the mathematical operations of multiplication and division.
Multiplication and division are two of the four basic mathematical operations, including addition and subtraction.
If Annabel chooses to purchase the first pencil at 30p each, she would pay £22.80 (£0.30 x 76).
If Annabel chooses to purchase the second pencil class of a pack of 10 pencils for £2, she would pay £15.20 [£2 x (76 ÷ 10)].
Pencils for sale
30p each
Pack of 10 pencils for £2
Thus, if Annabel wants to buy the pencils, she can either pay £15.20 or £22.80, but using mathematical operations, the lowest amount she can pay is £15.20.
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I NEED YOUR HELP PLSS
If the vertical length is 10, what is the horizontal length?
Answer:
yes this person did because I have the same question
Step-by-step explanation:
what are the answers? thank you.
Answer:
176.78cm squared,23.57cm,Step-by-step explanation:
inorder to solve the area of the shaded area;°/360ñRsquared
arc length you use ;°/360ñD
If Mark continues to receive candy in the same pattern, how many pieces of candy will he have in all after the 6 house. House 1 he got 4 pieces, house 2 he got 3 pieces, house 3 he got 5 pieces, house 4 he got 4pieces. How many pieces did he get in house 5 and house 6
According to exponent rules, when we divide the expressions we _______ the exponents.
Multiply
Subtract
Divide
Add
Show work pls! :D
Given the following 30-60-90 triangle, find the value of x and y. Round to the nearest tenth.