Answer:
maybe a. (b-c)=ab-ac (but im not sure)
Ina certain county weights of women are normally distributed with a mean of 138 lb and a standard deviation of 15 lb. What percentage of women in that country weigh more than 120 lb
Answer:
88.493%
Step-by-step explanation:
We solve this question using z score formula.
Z score = x - μ/σ
where
x is the raw score = 120lb
μ is the population mean = 138lb
σ is the population standard deviation = 15lb
Hence,
z = 120 - 138/15
= -1.2
Probability value from Z-Table:
P(x<120) = 0.11507
P(x>120) = 1 - P(x<120)
1 - 0.11507
= 0.88493
Converting to percentage
= 0.88493 × 100
= 88.493%
The percentage of women in that country weigh more than 120 lb is 88.493%
What is The slope of the line passes through (0,-3) and (2,13).
Answer:
8
Step-by-step explanation:
fist take y2-y1 to get 16 that do x2-x1 to get 2 the do 16 divided by to to get 8
PLEASEEEER HELPPP!!
If possible how would you prove that the given triangles congruent
Answer:
AAS
Step-by-step explanation:
The diagram above represents a biochemical process that occurs in a cell. The purpose of this process is to synthesize ?
Messenger RNA
Carbohydrates
Deoxyribonucleic Acids
Proteins
Answer:
Proteins
Step-by-step explanation:
I took the test and I got it right.
Answer:
proteins
Step-by-step explanation:
Felipe invested in a savings bond for 3 years and was pald simple interest at an annual rate of 5%. The total interest that he earned was $120. How much did the invest?
Answer:
your going to have t set it up like a proportion i'll help
Step-by-step explanation:
5 times 120 then divide by 3 hope i helps you byeeee
1. If 8 lbs. of onions costs $19.20, then how much will 11 lbs. of onions cost? 2. If my car travels 270 miles on 15 gallons of gas, then how many gallons of gas will be needed to travel 414 miles? 3. f 12 gallons of oil cost $34.80, how much will 7 gallons cost? 4. If a snail moves 9 inches in 5 minutes, how long will it take to move 27 inches? 5. You get paid 51.00 for 4 hours of work. How much would you get paid for 9 hours of work? PLEASE EXPLAIN HOW YOU GOT THE ANSWER. I MIGHT MARK BRAINLIEST IF RIGHT!
Answer:
1. 26.4
2. 23
3. 20.3
4. 15
5. 114.75
Step-by-step explanation:
1. 19.20/8= 2.4
2.4 *11= 26.4
2. 270/15=18
414/18=23
3. 34.80/12= 2.9
2.9*7=20.3
4. 9/5=1.8
27/1.8=15
5. 51.00/4= 12.75
12.75*9=114.75
1 point
15 The Davenports had a repairman come out to
their house. They were charged $50 per hour for
the 2-hour visit, plus a $99 consultation fee.
What was the total charge?
$help ASAP!
Your answer
Answer:
Step-by-step explanation:
50 an hour for 2 hours. 50(2) is 100
plus the 99 consultation fee.
Assuming there's no taxes because you're one of the lucky ones that doesn't have to pay, the total charge would be $199 dollars
5. You are buying orange juice for $3.50 per container and have a gift card worth $5. The function f(x) = 3.50x-5 represents your total cost f(x) if you buy x containers of orange juice and use the gift card. How much would you pay for 4 containers of orange juice?
Answer:
$9
Step-by-step explanation:
If you do 3.5*4 then you get 14. You then use the $5 gift card so you subtract 5 from 14 and get 9
using the equation, that would be f(x) = (3.5*4)-5. Using PEMDAS, you would do the parenthesis first so it would be f(x) = 14-5 which equals 9
please i need this quick , it’s so confusing
DO Y'ALL KNOW THE ANSWER?
Answer:
C
Step-by-step explanation:
12000 feet equals about 2 miles.
5280 is about half of 12000 so it is about 1 mile.
On Sunday, Sheldon bought 412 kg of plant food. He used 123 kg on his strawberry plants and used 14 kg for his tomato plants. How many kilograms of plant food did Sheldon have left?
Answer:
...............................
Gribbles are small, pale white, marine worms that bore through wood. While sometimes considered a pest since they can wreck wooden docks and piers, they are now being studied to determine whether the enzyme they secrete will allow us to turn inedible wood and plant waste into biofuel.1 A sample of 50 gribbles finds an average length of 3.1 mm with a standard deviation of 0.72. Give a best estimate for the length of gribbles, a margin of error for this estimate (with 99% confidence), and a 99% confidence interval. Round your answer for the point estimate to one decimal place, and your answers for the margin of error and the confidence interval to two decimal places. point estimate = Enter your answer; point estimate margin of error = Enter your answer; margin of error The 99% confidence interval is Enter your answer; The 99%confidence interval, value 1 to Enter your answer; The 99%confidence interval, value 2
Answer:
a) The Margin of Error = 0.26
b) The 99% Confidence Interval = ( 2.84, 3.36)
Step-by-step explanation:
a) Margin of Error
The formula for Margin of Error =
z × Standard deviation/√n
From the above question
The z score for 99% confidence interval = 2.576
Standard deviation = 0.72
n = Random number of samples = 50
Margin of Error =
2.576 × 0.72/√50
= 1.85472 /√(50)
= 0.2622970178
Approximately to 2 decimal places = 0.26
b) 99% Confidence Interval
= Mean ± Margin of Error
Mean = 3.1mm
Confidence Interval = 3.1 ± 0.26
3.1 ± 0.26
= 2.84
3.1 + 0.26
= 3.36
The 99% Confidence Interval = ( 2.84, 3.36)
answer correctly for a brainlesit and 10 pts pleaseee :) thanks asap
A 6 pack of Snickers bars costs $5.70.
How much would a 10 pack cost at the same price per bar?
Answer:$9.5
Step-by-step explanation:
will give branliest if correct :)
Answer:
15.71
Step-by-step explanation: I did It on a peice of paper and it's a mess so yeah......
uh i got put into algebra 1 pls help
Which number line shows point A plotted at -7?
Answer:
The third number line.
Hope this helps and have a great day!
And please mark me brainliest if you can :)
The value of x square +y square when x =-3and y =4 is
Games Galore Super Store buys the latest video game at a wholesale price of $58.00. The markup rate at Game’s Galore Super Store is 40%. You use your allowance to purchase the game at the store. How much will you pay, not including tax?
Answer:
Step-by-step explanation:
30 + .40(30) = 30(1 + .40) = 30(1.4) = $42
Which of the following is true given that -4> -9? ОА. -4 is at the same place as -9 on a horizontal number line OB. -4 is the opposite of -9 on a horizontal number line OC. -4 is to the right of -9 on a horizontal number line OD. -4 is to the left of -9 on a horizontal number line Reset Sub
Answer:
ask someone i know a good app its called brainly
Step-by-step explanation:
yup
Urgent!!!!! Please answer!!!!!!
Answer:
A
Step-by-step explanation:
Find the measure of each interior and exterior angle. The diagram is not to scale.
Answer/Step-by-step explanation:
✅m<1 = 90° (right angle)
✅m<2 = 90° (<1 and <2 are supplementary, and also linear pair)
✅m<3 = 90° (<1 and <3 are supplementary, and also linear pair)
✅m<4 = 115° (vertical angles theorem)
✅m<5 + m<4 = 180° (linear pair)
m<5 + 115° = 180° (substitution)
Subtract 115 from each side
m<5 = 180 - 115
m<5 = 65°
✅m<6 = m<5 (vertical angles are congruent)
m<6 = 65° (substitution)
✅m<7 = m<1 + m<6 (exterior angle theorem)
m<7 = 90° + 65° (substitution)
m<7 = 155°
✅m<8 = 180 - m<7 (linear pair theorem)
m<8 = 180 - 155 (substitution)
m<8 = 25°
✅m<9 = m<7 (vertical angles are congruent)
m<9 = 155° (substitution)
The cost of a gym membership is $25 per month. There is an initial fee of $40
Answer:
y = 25x + 40
Step-by-step explanation:
Using the formula, y = mx + b we can find out what this equation would be.
m = the rate of change/slope
b = the y- intercept
25 per month is telling us that this is the rate of change.
Since the $40 is only paid once, you can tell that this is the y intercept.
The equation will look like:
y = 25x + 40
On a graph it would look like:
Let the total cost of a gym membership be y, with the number of months as x.
The total cost would be 40 dollars, the initial fee, plus 25 times the number of months (x).
y = 40 + 25x
EASY!!! ILL GIVE BRAINLIEST
find the domain, range, increasing and decreasing
Answer:
Domain: -inf to +inf
Range: -inf to 4
Inc: - inf to 4
Dec: 4 to - inf
What is the answer to this equation
1) 4(x + 5) = 40
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
[tex]4(x + 5) = 40[/tex]
Divide sides by 4
[tex] \frac{4}{4} \times (x + 5) = \frac{40}{4} \\ [/tex]
[tex]x + 5 = 10[/tex]
Subtract sides 5
[tex]x + 5 - 5 = 10 - 5[/tex]
[tex]x = 5[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
CHECK :
[tex]4(5 + 5) = 40[/tex]
[tex]4 \times 10 = 40[/tex]
[tex]40 = 40[/tex]
Thus the solution is correct.
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Done...
I need to rearrange the variables to solve for pressure, P, as a function of volume and temperature, V and T. Write out your work on paper and submit a picture.
Answer:
P = (8T) / V
Step-by-step explanation:
P*V=8*T*P/P multiply both sides by P
P*V=8*T because P/P=1
P = 8T/V divide both sides by V
caculate the average speed from points D to point E
Answer:
20 seconds
Step-by-step explanation:
30 is where the E point is at while 10 is where D-point at.subtract these 2 and youll get 20
Pls helppp :))
Solve for x by factoring
X^2+4x-21=0
There are multiple answers
Answer:
[tex]x=3,-7[/tex]
Step-by-step explanation:
We can solve for x by using [tex]\frac{-b\pm\sqrt{b^{2} -4ac} }{2a}[/tex]
By applying this on the quadratic equation, we get:
[tex]x=\frac{-4\pm\sqrt{4^{2}+84} }{2}[/tex]
Which simplifies to:
[tex]x=\frac{-4\pm10}{2}[/tex]
[tex]\therefore x=3,-7[/tex]
HELP drag each set of coordinates to the correct location on the table not all sets of coordinates will be used
Answer:
im sorry but i tried to do it but too dumb
Step-by-step explanation:
The Bears have won 7 and tied 2 of their last 13 games. They have not forfeited any games. Which ratio correctly compares their wins to losses?
Answer:
7:4
Step-by-step explanation:
7:4 because if 13 is the total amount of games, that minus the amount of games won and tied equals the amount of games loss which is 4. Since it says wins to losses, the wins will come first in the ratio. Therefore the correct answer would be 7:4.
Answer:
7:4
Step-by-step explanation:
