Answer:
42.195 + 42.195 OR 42.195 X 2
= 84.39
Therefore, Joel ran 84.39 km altogether in two races
Hope it helps ;)
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Find the area of the rectangle.
9 m
16 m
☞ 9m
☞ 16m
Formula: A = lw
Whereas:
A = area
l = length
w = width
Solution:[tex]a = lw \\ 9 \times 16 \\ a = 144m[/tex]
Final Answer:[tex]\huge\color{pink}\boxed{A = 144m}[/tex]
Mr. aba builds a circular patio with a diameter of 12 feet he covers the patio with paving stones the cost of the paving stones is $10.50 per square foot to the nearest dollar how much do the paving stones cost?
A National Institute of Health survey of 40467 U.S adults found that 3156 of them experienced at least one major depressive episode in the previous year. Make a 95% confidence interval for the proportion of all U.S. adults who experienced depression in that year. (Source: https://www.nimh.nih.gov/health/statistics/major-depression)
Using the information given, it is found that the 95% confidence interval for the proportion of all U.S. adults who experienced depression in that year is (0.075, 0.081).
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the z-score that has a p-value of [tex]\frac{1+\alpha}{2}[/tex].
3156 out of 40467 adults experienced depression, hence:
[tex]n = 40467, \pi = \frac{3156}{40467} = 0.078[/tex]
95% confidence level
So [tex]\alpha = 0.95[/tex], z is the value of Z that has a p-value of [tex]\frac{1+0.95}{2} = 0.975[/tex], so [tex]z = 1.96[/tex].
The lower limit of this interval is:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.078 - 1.96\sqrt{\frac{0.078(0.922)}{40467}} = 0.075[/tex]
The upper limit of this interval is:
[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.078 + 1.96\sqrt{\frac{0.078(0.922)}{40467}} = 0.081[/tex]
The 95% confidence interval for the proportion of all U.S. adults who experienced depression in that year is (0.075, 0.081).
A similar problem is given at https://brainly.com/question/16807970
Solve for x.
(10−523)⋅(−2)+x=823
When A = 5x + 4 and B = 9x - 6 what is the value of B-A
help
Answer:
B - A = 4x - 10
Step-by-step explanation:
B - A
= 9x - 6 - (5x + 4) ← multiply terms in parenthesis by - 1
= 9x - 6 - 5x - 4 ← collect like terms
= 4x - 10
Answer:
4x-10
Step-by-step explanation:
PLEASE HELP ME GIVING BRAINLIEST
Answer:
B
Step-by-step explanation:
Because it starts from the smallest negative prefix to largest
Select all true statements about the line and its equation.
Answer:
the first, second and fifth ones
Step-by-step explanation:
3. What's the relationship between VO2max and cardiorespiratory exercise?
I
Answer:
A person's VO2max measurement is generally considered the best indicator of cardiovascular fitness and aerobic endurance. [ -is the relationship between VO2max and cardiorespiratory exercise. ]
Step-by-step explanation:
this is shoRT but helps
Here at Dillard 6-12 the amount of new teacher went from 24 teachers to 30 teachers. What is the percent of change?
Answer:
25% increase
Step-by-step explanation:
formula for percent of change = (new amount - original amount) / original amount; this will give you a decimal and multiply it by 100 to get the percent
(30 - 24) / 24
6/24 = 1/4 = 0.25
25% increase
Help pls I can’t get this anymore
Answer:
D
Step-by-step explanation:
According to the Pythagorean theorem, if you call the 2 legs of a right triangle a and b respectively and call the length of the hypotenuse c, you have:
[tex]a^{2} + b^{2} = c^{2}[/tex]
=> [tex]36^{2} + 10^{2} =[/tex] [tex]hypotenuse ^{2}[/tex]
=> 1396 = [tex]hypotenuse ^{2}[/tex]
=> hypotenuse = [tex]\sqrt{1396}[/tex] (inch)
=> Answer D
Pretty please answer diss
Answer:15
Step-by-step explanation:
x=180-(110+55)=15
The price of a notebook was 3.70 yesterday. Today, the price fell to 3.20. Find the percentage decrease. Round your answer to the nearest tenth of a percent.
Answer:
The price was dropped around 15%
Step-by-step explanation:
You will pay $3.15 for a item with original price of $3.70 when discounted 15%. In this example, if you buy an item at $3.70 with 15% discount, you will pay 3.70 - 0.555 = 3.15 dollars.
In which set do all of the values make the inequality 3k – 6 < 12 true?
The set of values that satisfies the inequality is (-∝, 6)
Inequality shows the non-equal comparison between two numbers or other mathematical expressions.
Given the inequality: 3k – 6 < 12
Solving the inequality:
3k – 6 < 12
Add 6 to both sides:
3k - 6 + 6 < 12 + 6
3k < 18
Divide both sides of the equation by 3:
3k/3 < 18/3
k < 6
The set of values that satisfies the inequality is (-∝, 6)
Find out more at: https://brainly.com/question/25285332
write each equation in standard form. 5/8x+3/4y= -1
Answer: 5x + 6y = -8
Step-by-step explanation: i believe this is the answer but i might be wrong, let me know. hope I helped!
The cost of a baguette and a cup of hot chocolate is $1.45. The cost of 2 baguettes and a cup of hot chocolate is $2.10. What is the cost of one cup of hot chocolate?
Answer:
It is $0.8
Step-by-step explanation:
First find out the value of one baguette.
They just added one more baguette. So the amount left after subtracting them both will be the cost of 1 baguette.
2.10 - 1.45 = 0.65
Now, subtract the 1st cost with the cost of 1 baguette.
1.45 - 0.65 = $0.8
Pls Mark Me as the brainliest.
30 boys and 56 girls as a ratio
Answer:
30:56!
Step-by-step explanation:
since 30 boys is mentions first you can start it as that way
it helps me better and is way more efficient
A large container holds 5 gallons of water. It begins leaking at a constant rate. After 15 minutes, the container has 2 gallons of water left. Part 1 At what rate is the water leaking? Express your answer as a positive value. 1 The water is leaking at the rate of gal/min. 5 Part 2 out of 2 How many minutes will it take for the container to go from full to empty? The container will be empty after minutes.
Answer:
.2 Gallons a minute
.2G/1m
25minutes until empty
Step-by-step explanation:
so the container lost 3 gallons in 15 minutes after that you changed it to how many minutes it took to lose 1 gallon by doing 15/3= 5
Now that you know 5/1 you divid 1/5 for an answer of 1/5 or .2 gallons a minute.
now you know that part two is easy
5/.2=25 which is the amount of times .2 gallon has to be removed from five and happens to also be the amount of minutes due to your solve from earlier.
To solve for k in the inequality -16 -32 > -48, what steps are correct?:
A First, subtract 32 to each side, then divide by -16 and flip the sign
B First, divide both sides by 16, then add 32 to both sides and leave
the sign
C First, subtract 48 from both sides, divide by -16 and leave the sign
D First, add 32 to both sides, then divide by -16 and flip the sign
Answer:
D. First, add 32 to both sides, then divide by -16 and flip the sign
Step-by-step explanation:
Taking that the inequality is -16k-32>-48
First you have to get rid of any addition or subtraction, in this case you have to get rid of -32 by adding 32 to each side:
-16k-32+32 > -48 +32
Then you need to divide by -16 and flip the sign because you are dividing by a negative number and if you don't flip the sign the inequality will be false.
[tex]\frac{-16k}{-16} <\frac{-16}{-16}[/tex]
Pam makes 5 liters of apple juice. She saves 0.5 liter of apple for dinner and puts the rest in bottles . If each bottle bottle holds 0.75 liter, how many apples of apple juice can pam fill?
The number of bottles she can fill if, Pam makes 5 liters of apple juice. She saves 0.5 liters of apples for dinner and puts the rest in bottles is 6.
What is multiplication?One of the four fundamental mathematical operations, along with addition, subtraction, and division, is multiplication. Multiply in mathematics refers to the continual addition of sets of identical sizes.
Given:
Pam makes 5 liters of apple juice. She saves 0.5 liters of apples for dinner and puts the rest in bottles,
If each bottle holds 0.75 liters,
Calculate the amount of juice left as shown below,
The amount of juice left = 5 - 0.5
The amount of juice left = 4.5 liter,
Calculate the number of bottles as shown below,
The number of bottles = The amount of juice left / juice held by each bottle
The number of bottle = 4.5 / 0.75
The number of bottles = 6
To know more about multiplication:
https://brainly.com/question/1135170
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HELP ME!
A line passes through the points (5,16) and (7,18) Write a linear function rule in terms of x and y for this line.
Answer:
y=x+11；
Step-by-step explanation:
Let's say the direct equation is y=kx+b;
Plug in the two points to get the system：
[tex]\left \{ {{16=5k+b} \atop {18=7k+b}} \right.[/tex]
So k is equal to 1, b is equal to 11，
so y=x+11；
Tried a couple times but cant seem to find the answer, would appreciate an explanation.
Answer:
Option CStep-by-step explanation:
You just need tp translate what is written in the two- column proof into paragraph.
Given that the two angles have same measure of 125°, by transitive property we proof that the angles are congruent.
We don't perform any of addition, division or multiplication operations. We just compare the angle measures and come to conclusion.
This is best described in the paragraph C
2. French Vanitta K-Cups that originally
cost $5.99 are now on sale for $4.75.
Answer:
20.7% is the % decrease.
Step-by-step explanation:
If you are finding the % of decrease then see below.
% Decrease = (Original Cost - New Cost ) ÷ Original Cost × 100
5.99 - 4.75 = 1.24
1.24 ÷ 5.99 = .2070
.2070 × 100 = 20.7%
1.
The diagram shows a kite, ABCD.
AFE and CEF are equilateral triangles.
The ratio of angle DAE : angle EAF = 1:4.
Work out angle x
Write on the diagram the values of any other angles you use in your working.
Answer:a) ∠BDE is 60° because ΔBDE is an equilateral triangle with all three angles = 60°.
Step-by-step explanation:
b) ∠CDB = 120° because 180° - 60° = 120°
*6. This is a list of ingredients for making a pear & almond crumble for 4 people.
Ingredients for 4 people:
80 g plain flour
60 g ground almonds
90 g soft brown sugar
60 g butter
g
4 ripe pears
Jessica wants to make a pear & almond crumble for 10 people.
Here is a list of the amount of each ingredient Jessica has in her cupboard.
250 g plain flour
100 g ground almonds
200g soft brown sugar
150 g butter
8 ripe pears
Work out which ingredients Jessica needs to buy more of.
You must show all of your working.
pls help me and pls no link dont try me
Answer:
red line
the red line has a slope of -1 by looking at the coordinates,
it also intersects the given point (1,-1)
Sarah practices the piano 1/3 hour in the morning, 5/6 hour in the afternoon, and 4/5 hour in the evening.
Answer:
Sarah practices the Piano for 1.96666 Hours or 59/30 Hours
Step-by-step explanation:
0.33333 + 0.83333 = 1.16666
1.16666 + 0.8 = 1.96666
1.96666 = 59/30
4x + 5y = 6
5x + 4y = 5
The lines are
A. perpendicular.
B. parallel
C. neither
[tex]{\huge{\boxed{\mathfrak{Question}}}[/tex]
[tex]4x + 5y = 6\\5x + 4y = 5[/tex]
The lines are
A. perpendicular.
B. parallel
C. neither
__________________________
C. Would be our answer because parallel lines never intersect
perpendicular lines form 90 degrees of all sides.
Is (1,1), (2,2), (3,3), (4,4), (5,8) a function? Why or why not?
The cost to run Machine 1 for an hour is $2. During that
hour, Machine 1 produces 240 bolts and 100 nuts. The cost
to run Machine 2 for an hour is $2.40. During that hour,
Machine 2 produces 160 bolts and 160 nuts. With a combined
running time of no more than 30 hours, how long should
each machine run to produce an order of at least 2080 bolts
and 1520 nuts at the minimum operating cost?
this is applications of linear programming
Answer:
Math SMH
Step-by-step explanation:
Which table of values represents a linear function?
