Answer:
Step-by-step explanation:
turfgrass fertilizers contain one or more plant nutrients; the most common of these are nitrogen, phosphorus (designated on labels as available phosphate, or P2O5), and potassium (designated as water-soluble potash, or K2O)
9w-4w+6<1+5w supposed to combine like terms
Answer/Step-by-step explanation:
Given:
\( 9w - 4w + 6 \) < \( 1 + 5w \)
To solve, collect like terms.
Subtract 5w from both sides
\( 9w - 4w + 6 - 5w \) < \( 1 + 5w - 5w \)
\( 9w - 4w - 5w + 6 \) < \( 1 \)
\( 6 \) < \( 1 \) (incorrect)
The inequality given has no solution or an information is missing.
The graph of g is a translation 1 unit down of the graph of f(x) = 3|x| – 4. The rate of change of g over the interval 2 ≤ x ≤ 5 is
The solution is: the rate of change is 3.
Here, we have,
Since the graph of f(x) is translated 1 unit down, we need to decrease the value of f(x) by 1 to find g(x):
g(x) = f(x) - 1
f(x) = 3|x| – 4
so, we get,
g(x) = 3|x| – 4 - 1
= 3|x| – 5
Now, to calculate the rate of change over the interval 2 <= x <= 5, we can use the formula below:
rate = g(5) - g(2)/ 5-2
so, we get,
rate = 9/3 = 3
Therefore the rate of change is 3.
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Which of the following statements is true?
A.
A rhombus has no sides the same length.
B.
A square has two right angles.
C.
A trapezoid has two pairs of parallel sides.
D.
A rectangle has four right angles.
can someone help me with this
Someone walks at a constant speed of 4miles per hour how much time will it take them to walk 36miles
Answer:It will take them 9 hours
1.If a line passes through the origin, it passes through the point (0, 0) *
TRUE
FALSE
2.What is the gradient of the line which passes through the points ( -3, 0 ) and ( 0, 3 )? *
A - 1
B - ½
C 1
D ½
Answer:
1.TRUE
2.gradient = change in y
_________
change in x
(-3,0) (0,3)
Step-by-step explanation:
m= y2-y1
_____
x2-x1
m=3-0
___
0 --3.
m= 3
__
3
m= 1
therefore 2. C
The pressure of a gas tank is 234.24 atm at 295 K. Whatis the gas pressureif the temperature is raised back to 333k?
Answer:
Step-by-step explanation:
The pressure of a gas tank is 234. 24 atm at 295K. What is the gas pressure if the temperature
The pressure of a gas tank is 234. 24 atm at 295K. What is the gas pressure if the temperature is raised to 333K. P1/T1=P2/T2
If mL DOC = 44º and m2 COB = 80°,
find the measure of the indicated arc
in circle o.
С
o
B.
mDEB = ?
Answer:
236°
Step-by-step explanation:
The circumference of a circle is 360° since <DOC is given as 44° and <COB is given as 80° and the center angles are equal to the arc it sees the the measure of arc DEB would be 360 - 44 - 80 = 236°
ordered pair of
y = -4x + 2
-8x - 4y = -8
The οrdered pair that satisfies bοth equatiοns is (0, 2).
What is the οrdered pair?An οrdered pair is a set οf twο numbers written in a specific οrder. The οrder οf the numbers is impοrtant, and the οrdered pair (a, b) is nοt the same as the οrdered pair (b, a) unless a=b.
Tο find the οrdered pair, we need tο sοlve the system οf equatiοns:
y = -4x + 2 (Equatiοn 1)
-8x - 4y = -8 (Equatiοn 2)
We can start by sοlving Equatiοn 1 fοr y:
y = -4x + 2
Next, we can substitute this expressiοn fοr y intο Equatiοn 2 and sοlve fοr x:
-8x - 4(-4x + 2) = -8
-8x + 16x - 8 = -8
8x = 0
x = 0
Nοw that we have fοund x, we can substitute it back intο Equatiοn 1 tο find y:
y = -4x + 2
y = -4(0) + 2
y = 2
Therefοre, the οrdered pair that satisfies bοth equatiοns is (0, 2).
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If you scale an object with a scale factor greater than one it will get bigger.
True or False.
The chief engineer is in charge of deciding the mountainous road-network that will be kept open (cleared of debris and maintained regularly) during the winter months. Each road connects different small towns in the mountains, and all towns are connected to each other either directly or indirectly. Each road is associated with a value indicating the level of danger in maintaining that road during winter months. There are many subsets of roads such that the roads in such subsets keep the towns connected directly or indirectly. Each subset is assigned a cost of maintenance, which is directly proportional to the highest danger level of the road present in that subset. The engineer wants to select the smallest subset that keeps the towns connected directly or indirectly and that also has the lowest cost of maintenance. Develop an algorithm to find such a subset. Justify the correctness of your algorithm and derive its runtime.
Answer:
I dont know the answer to it
Given: AAEB and ADFC, ABCD, AE || DF, EB || FC, AC = DB
Prove: AEAB AFDC
By proving that ΔEAB and ΔFDC have congruent corresponding angles and proportional corresponding sides, we can conclude that ΔEAB ≅ ΔFDC.
Proving that Triangles are EqualGiven:
- Triangle ΔAEB and ΔDFC
- Line ABCD is straight (implies AC and BD are collinear)
- AE is parallel to DF
- EB is parallel to FC
- AC = DB
To prove: ΔEAB ≅ ΔFDC
Recall that:
AE || DF
EB || FC
AC = DB
AE || DF, EB || FC (Parallel lines with transversal line AB)
Corresponding angles are congruent:
∠AEB = ∠DFC (Corresponding angles)
∠EAB = ∠FDC (Corresponding angles)
Corresponding sides are proportional:
AE/DF = EB/FC (Corresponding sides)
AC/DB = BC/DC (Corresponding sides)
AC = DB
BC = DC (Equal ratios)
ΔEAB ≅ ΔFDC (By angle-side-angle (ASA) congruence)
∠EAB = ∠FDC
∠AEB = ∠DFC
AC = DB, BC = DC
Therefore, by proving that ΔEAB and ΔFDC have congruent corresponding angles and proportional corresponding sides, we can conclude that ΔEAB ≅ ΔFDC.
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Find the annual interest rate.
I= $562.50, P=$1500, t= 5 years
The annual interest rate is_____%
The annual interest rate is 7.5%.
What is Simple interest?
Simple interest is a type of interest that is calculated on the principal amount (or the initial amount) of a loan or investment, without taking into account any accumulated interest from previous periods.
The formula for simple interest is:
I = P × r × t
where I is the interest earned, P is the principal (initial amount), r is the annual interest rate as a decimal, and t is the time in years.
In this case, we know I = $562.50, P = $1500, and t = 5 years.
we ca substitute values into the formula,
562.50 = 1500× r ×5
Simplifying, we get:
r = 562.50 / (1500 ×5)
r = 0.075
r = 7.5%
Therefore, the annual interest rate is 7.5%.
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the top of an electric pole is s supported by a wire of 26 ft long on the ground level. how far is tightened spot from the foot of the pole if its height is 24 ft?
Answer:
The tightened spot is 10 feet away from the foot of the pole.
Step-by-step explanation:
1. Draw the diagram. Notice that the shape of the electric pole and its supporting wire creates a right triangle.
2. We know 2 side lengths already (26ft, 24ft), and we need to find 1 more side length. Therefore, to find the 3rd side length of a right-triangle, utilize Pythagoras' Theorem.
⭐What is the Pythagoras' Theorem?
\((C)^2 = (A)^2 + (B)^2\)An equation to find a 3rd side lengthC = hypotenuseA = one legB = another leg3. Substitute the values of the side lengths into the equation, and solve for the unknown side length.
Let B= the distance from the tightened spot to the foot of the pole.
\((C)^2 = (A)^2 + (B)^2\)
\(26^2 = 24^2 + B^2\)
\(676 = 576 + B^2\)
\(100 = B^2\)
\(\sqrt{100} = \sqrt{(B)^2}\)
\(10 = B\)
∴ The tightened spot is 10 feet away from the foot of the pole.
Diagram:
a) calculate the reynolds number for a sphere moving in air at 15 m/s with a diameter of 10cm. b) is this flow around the sphere turbulent? (yes/no/maybe) c) calculate the reynolds number for a sphere moving in water at 15 m/s with a diameter of 10cm.
a) The Reynolds number for a sphere moving in air is 83,333.33.
b) Yes, Based on the Reynolds number, the flow around the sphere is turbulent (Re > 4000).
c) The Reynolds number for a sphere moving in water is 150,000.
Reynolds Number Sphere Flowa) To calculate the Reynolds number for a sphere moving in air at 15 m/s with a diameter of 10cm, we can use the formula:
Re = (density * velocity * diameter) / viscosity
Where density of air is 1.2 kg/m³, viscosity of air is 1.78 x 10⁻⁵ Ns/m² and diameter is 0.1m.
Re = (1.2 * 15 * 0.1) / (1.78 x 10⁻⁵)
Re = 83333.33
b) Based on the Reynolds number, the flow around the sphere is turbulent (Re > 4000). So, the answer is yes.
c) To calculate the Reynolds number for a sphere moving in water at 15 m/s with a diameter of 10cm, we can use the formula:
Re = (density * velocity * diameter) / viscosity
Where density of water is 1000 kg/m³ and viscosity of water is 0.001 Ns/m².
Re = (1000 * 15 * 0.1) / (0.001)
Re = 150000
Based on the Reynolds number, the flow around the sphere is turbulent (Re > 4000).
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The height of a cable that runs between two supports on a suspension bridge can be modeled by a quadratic function () where is the horizontal distance from the first support. The cable is attached to each support at a height of 112 feet. The distance between the supports is 72 feet. The cable is at its lowest height of 10 feet halfway between the two supports.
what is the vertex
axis of symmetry
domain
range
x and y-intercepts
What is the vertex
Its vertex is at (36, -10)
Let us assume that the left edge of the cable is at the origin.
Since the cable is at its lowest height 10 feet halfway between the two supports, the y-coordinate of its lowest point is -10 ft and the x coordinate is 72 ft/2 = 36 ft.
So, its vertex is at (36, -10)
Axis of symmetry
The y-axis.
Since the cable is symmetric about its lowest point, the axis of symmetry is the y-axis.
Domain
The domain is (0, 72).
Since the minimum value of its x-coordinate is at the origin which is x = 0 and the maximum value is at the other support which is at x = 72 ft,
the domain is (0, 72).
Range
The range is (0, -10)
Since the minimum value of the y-coordinate is -10ft and the maximum value is at the origin y = 0,
the range is (0, -10)
x and y-intercepts
The x-intercept is (0, 72) and the y-intercept is (0, 0)
Since the cable is attached at the origin and at 72 feet away from the origin at the other support, the x-intercept is 0 and 72 ft and the y-intercepts are 0 and 0.
So, the x-intercept is (0, 72) and the y-intercept is (0, 0)
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Factor the following expression. x² - 10x +9 2 Factor the following expression . x² - 10x +9 2
Answer:
x² - 10x + 9 = (x-9)(x-1)
the factored expression would be (x-9)(x-1)
(g) Every student of class IV donated as much money as their number to make a fund for landslide, If there are 68 students in class IV how much money did they collect?
Answer:$2346
Step-by-step explanation: Assuming that the students' numbers start at 1, we have 1+2+3+4.....+65+66+67+68 as the total amount of money raised. We can see that 1+68 = 69 and 2+67 also equals 69. So, we can use this method to figure out how many 69s are in the sum. Since 68 divided by 2 is 34, there are 34 69s in the sum. 34x69 = 2346.
9+9+3=21
1234+1234+1234= 30
9+1224+12=?
Answer:
9+1224+12=1245
Hope this helps
Answer:
Mathematically,
9+1224+12 = 1245
But, Logically, here:
9+1224+12 = 21
In 2 + In 8 - In 4
In 4
In 6
In 74
Answer:
in8− in4+ in2
Step-by-step explanation:
thats the aswer
You have several numbers in a data set: 5, 7, 9, 11, 13, 15, 17. What is the z Score for the number 15? (the SD is 4.32)
The value of the z-score for the number 15 in a data set is 0.93.
Define z-score.
A data point's z-score, also known as a standard score, indicates how far it deviates from the mean. In practical terms, however, it's a measurement of how many standard deviations a raw number is from or above the population mean.
You can plot a z-score on a normal distribution graph. Z-scores can be anywhere between -3 and +3 standard deviations.
∴ z = (x – μ) / σ
Given:
σ = 4.32
x = 15
Data set: 5, 7, 9, 11, 13, 15, 17
So, mean = 5 + 7 + 9 + 11 + 13 + 15 + 17/7
= 77/7
μ = 11
z = (x – μ) / σ
= (15 - 11)/4.32
= 4/4.32
z = 0.93
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40 is what percent of 320
PLEASE HELP AS SOON AS YOU CAN!!
4. Factor the trinomial completely. (3 points)
3x2 - 18x+ 24
Answer:
3(x-4)(x-2)
Step-by-step explanation:
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On the first day of fall, a squirrel had 15 acorns. Every day after that, the squirrel added 9 more acorns to its stash.
How many acorns did the squirrel have on the 23rd day?
Answer:
222
Step-by-step explanation:
9*23=207
207+15=222
In large cities, people often take taxis to get from one place to another. What is the cost per mile of a taxi ride? How much is a 47 mile taxi ride?
((It costs 25.20$ for a 36 mile drive)
Answer:
0.7$ permile
32.90$ for 47 mile
Step-by-step explanation:
25.20$ for 36 mile
1. Find the cost for a mile
25.20$ ÷ 36 mile = 0.7$ per mile
2. The cost for 47 mile
0.7$ × 47 mile = 32.90$
Please vote if this helps you! Thanks
Use StatKey or other technology to find the regression line to predict Y from X using the following data.
X 10 20 30 40 50 60
Y 111 109 110 94 92 93
Click here to access StatKey.
Round your answer for the intercept to one decimal place and the answer for the slope to two decimal places.
The regression equation is Enter your answer; The regression equation, intercept
+ Enter your answer; The regression equation, slope
X.
The regression equation is Y = 95.0 + 0.84X.The regression line is a mathematical model that is used to predict the value of a dependent variable (Y) based on the value of an independent variable (X).
In this case, the regression line is used to predict Y from X using the following data: X = 10, 20, 30, 40, 50, 60 and Y = 111, 109, 110, 94, 92, 93. By using a regression analysis tool such as StatKey, we can calculate the regression equation that best fits this data. The regression equation is Y = 95.0 + 0.84X, where 95.0 is the intercept and 0.84 is the slope. This equation can be used to make predictions about the value of Y for a given value of X. The rounded answer for the intercept is 95.0 and the rounded answer for the slope is 0.84.
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I need help please as soon as possible
Kellan went ice skating for 8 hours this week. If he spent an equal amount of time skating each day for 5 days, how many hours did kellan skate each day?
Answer:
8/5 = 1.6
Step-by-step explanation:
8/5 = 1.6
Eric earns $7.50 per hour working at a grocery store. The total amount of money he
earns on a given day is a function of how many hours he works that day?
Answer: 37.50
Step-by-step explanation: If he works 5 hours A DAY and he earns $7.50 PER HOURS, you just need to multiple
7.50(5)= 37.50
Jayla plays on the Strikers soccer team. The team worked on 5 new drills at yesterday's
practice, spending the same amount of time on each drill. Jayla was 15 minutes late and only
practiced for 40 minutes.
) Which equation can you use to find how long, x, the team spent on each drill?
The equation that can be use to find how long, x the team spent on each drill is 55 = 5x
How to represent equation?Jayla plays on the Strikers soccer team.
The team worked on 5 new drills at yesterday's practice, spending the same amount of time on each drill.
Jayla was 15 minutes late and only practiced for 40 minutes.
The equation that can be used to represent the situation is as follows:
where
x = time the team spent on each training drill
Therefore, the equation is as follows:
15 + 40 = 5x
55 = 5x
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