Problem 1
Two things you could measure is a person's height and the speed needed to reach the planet Mars. The person's height can be measured with a low level of precision, which means we don't need to be that accurate. We could say "that person is about 6 feet tall" and whoever is listening would get a sense of their height. In contrast, we need high precision for a rocket speed to Mars because getting this figure wrong would likely cause disaster down the road. Very complicated mathematics is essential to make sure we hit the target required in space.
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Problem 2
As mentioned, we need high precision when it comes to anything dealing with space travel. If the calculations are wrong, then the spacecraft could crash somehow. As one example where things went wrong, engineers used the wrong values and the Mars lander ended up crashing into the planet rather than landing safely. The high cost of such space exploration missions means that it's very crucial to get precise values as much as possible, to as accurate as possible. Things like discussing a person's height isn't that essential to be very precise as we can just relay estimates to whoever we're talking to. This informal setting doesn't demand as much accuracy compared to something like a rocket launch.
Tenley wants to exercise at least 15 hours per week. She walks at a speed of three miles per hour and bikes at a speed of 10 miles per hour. She wants to cover at least 90 miles total in her weekly workouts, biking no more than 10 hours and walking no more than 12 hours.
Answer:
The answer is below
Step-by-step explanation:
Let x represent the number of hours spent on walking and let y represent the number of hours spent on biking.
Tenley wants to exercise at least 15 hours per week, therefore:
x + y ≥ 15 (1)
Tenley cover at least 90 miles total in her weekly workout, therefore:
3x + 10y ≥ 90 (2)
x ≤ 12, y ≤ 10 (3)
Plotting the above constraints using geogebra online graphing tool. The solution to the problem is:
(5, 10) , (12, 10), (12, 5.4), (8.57, 6.43)
Someone please help me state all the possible names for the figure
Please help this is geometry I would really appreciate it <3
Answer:B
Step-by-step explanation:
What is 6q+4-q+5 equals tooo PLEASE I REALLY NEED HELP THIS IS DUE TODAYY
Answer:
5q+9
Step-by-step explanation:
1. combine like terms
6q-q=5q and 4+5=9
2. combine those two
5q+9
what's the value of
[tex] \sqrt{400} = [/tex]
Answer:
20
Step-by-step explanation:
Use a calculator, press squareroot button on a calculator and press 400 it will give you 20... Its like 20*20=400
Answer:
Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.
20
Step-by-step explanation:
Hope it is helpful....
3 A garage is to be built with a skillion roof (a roof with a single
slope). The measurements are given in the diagram. Calculate
the pitch line length, to the nearest millimetre. Allow 500 mm
for each of the eaves.
Answer:
1e1e
Step-by-step explanation:
The pitch line length of the garage with the skillion roof, with the given dimensions and eave overhangs, is approximately 7.5 meters.
To calculate the pitch line length for the garage with a skillion roof, we need to consider the dimensions provided in the diagram and add the eave overhangs.
Let's assume the length of the garage is L meters, and the height from the top of the walls to the peak of the roof is H meters.
Calculate the pitch line length of the roof:
The pitch line length is the diagonal length of the triangular roof face. We can use the Pythagorean theorem to find it.
Pitch Line Length (PL) = √(L² + H²)
Add the eave overhangs:
The eave overhang is 500 mm on each side, so we need to add 1 meter (1000 mm) to the pitch line length.
Total Pitch Line Length (TPL) = PL + 1000
Now, let's calculate the pitch line length to the nearest millimeter.
For example, let's assume L = 6 meters and H = 2.5 meters.
Calculate the pitch line length (PL):
PL = √(6² + 2.5²)
PL = √(36 + 6.25)
PL = √42.25
PL = 6.5 meters
Add the eave overhangs:
TPL = 6.5 + 1
TPL = 7.5 meters
To know more about length
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Katrina has $210 in her savings account. She plans to buy books for her friends for Christmas. The books cost $7 per book. Which equation best represents this situation? Let y represent the amount of money in Katrina's account and x represents the number of books she purchases.
what is the correct answer
y=210-7x
y=7x+210
y=210x+7
y=-7+210x
Answer:
Option 1 y = 210 - 7x
Step-by-step explanation:
Since she will be buying "x" amount of books she will lose money because she has to pay for them. Each book costs $7 so if she buys "x" books she will lose 7x dollars. Therefore the right equation would be...
y = 210 - 7x (which is the first option)
Write an expression that is equivalent
to 2/8b+(3/8b+4/5)
Answer: 5/8b + 4/5
EXPLAIN: It's too easy explain it yourself. (LOL)
The value of the equation is A = ( 5/8 )b + 4/5
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
A = ( 2/8 )b + ( 3/8 )b + ( 4/5 ) be equation (1)
On simplifying the equation , we get
A = [ ( 2/8 )b + ( 3/8 )b ] + 4/5
A = ( 5/8 )b + ( 4/5 )
On further simplification , we get
A = ( 25b + 32 ) / 40
Therefore , the value of A is ( 5/8 )b + ( 4/5 )
Hence , the equation is A = ( 5/8 )b + ( 4/5 )
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PLEASE HELP THIS IS DUE SOON
Answer
interior angles 370
exterior angles 350
I hope this helps!
2(4x+5)=9(3x+2)? I need help
Answer:
[tex]x=-\frac{8}{19}[/tex]
Step-by-step explanation:
2(4x + 5) = 9(3x + 2)
Solve for x
___________________
We have an alrebaric expressio and are asked to solve for x, which to do this, we need to isolate x.
2(4x + 5) = 9(3x + 2)
Distribute :
(2(4x) + 2(5)) = (9(3x) + 9(2))
8x + 10 = 27x + 18
Subtract 10 from both sides :
8x = 27x + 8
Subtract 27x from both sides :
-19x = 8
8 = -19x
Divide both sides by -19 :
[tex]x=-\frac{8}{19}[/tex]
In this triangle cosA/CosB= ?
Answer:
Step-by-step explanation:
[tex]\frac{cos A}{cos B} =\frac{\frac{AC}{AB} }{\frac{BC}{AB} } =\frac{AC}{AB} \times \frac{AB}{BC} =\frac{AC}{BC} =\frac{3}{3} =1[/tex]
The value of cosA divided by cosB is equal to 1.
What is trigonometric identity?Trigonometric Identities are equality statements that hold true for all values of the variables in the equation and that use trigonometry functions. There are numerous distinctive trigonometric identities that relate to a triangle's side length and angle.
It is given that in the right-angle triangle ABC the three sides are AB = 4.24, BC = 3 and AC = 3.
The value of cosine is the ratio of the base of the right-angle triangle and the hypotenuse of the right-angle triangle.
The value of cosA is calculated as below:-
cosA = 4.24 / 3
The value of cosB is calculated as below:-
cosB = 4.24 / 3
Calculating the ratio of cosA and cosB.
cosA / cosB = [ 4.24 / 3 ] ÷ [ 4.24 / 3 ]
cosA / cosB = 1
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Use the graph to find the solutions of –1/2 x^2 – x + 4 = 0.
Answer:
For the problems presented, the following are the answers:
1. No graph is provided, sorry.
2. 2, 1/2
3. 12m
4. 30
5. 1.1, 9.1
6. 10.35, 1.35
22. -6, 2
Step-by-step explanation:
Please mark me brainliest if my answer is correct thank you and have a nice day
Someone please saveee meee on this :(
Answer:
the answer is 5
Answer:
yea the answer is 5
A total of 762 people, consisting of parents, students, and teachers, attended the Community Fair. If 212 parents and 386 students were at the event, how many teachers attended?
Answer:
[tex]\boxed{\textsf{ The number of Teachers that attented is \textbf{ 164 } .}}[/tex]
Step-by-step explanation:
Here it's given that a total of 762 people consisting of parents, students, and teachers, attended the Community Fair. There were 212 parents and 386 students at the fair .That is ,
Number of students:-
[tex]\sf\implies n(students) = 386 [/tex]
Number of parents :-
[tex]\sf\implies n(parents) = 212 [/tex]
Number of teachers :-
[tex]\sf\implies n(teachers) = ? [/tex]
Here the Number of teachers could be simply find out by subtracting the number of students and teachers from the total number of attendees .
[tex]\sf\implies n_{(teachers)}= n_{(total)}- n_{(students)}- n_{(parents)} \\\\\sf\implies n_{(teachers)}= 762 - 386 - 212 \\\\\sf\implies n_{(teachers)}= 762 - 598 \\\\\sf\implies\boxed{\pink{\frak{ n_{(teachers)}= 164 }}}[/tex]
- 4 + 4b + 5 + 8b
It’s needs to be simplified
I need an answer asap
Answer:
12b+1
Step-by-step explanation:
-4 + 4b + 5 + 8b
12b+1
Sylvie needs $110 for a concert ticket. She already has $16 and she can earn the rest by working 10 hours at her job. If h represents her hourly earnings, which of the following equations can be solved to find Sylvie’s hourly earnings? Select all that apply.
Answer:On a Road trip, a family drives 350 miles per day. How many days, d, must they travel to reach a distance of at least 1,400 miles?
Step-by-step explanation:
8.5×7/2 ____
please
Whats the answer? HELP??
Answer:
(1). 50.0° ; (2). 15.5 units
Step-by-step explanation:
Examine the diagram. Parallel lines a and b are crossed by transversal t to create 8 angles. Clockwise from top left, the angles are blank, 60.75 degrees, blank, blank; 2, 1, blank, blank. What are the measures of angle 1 and angle 2? The mAngle1is degrees. The mAngle2 is degrees.
Answer:
60.25 then 34.5
Step-by-step explanation:
Answer:
60.75 and 119.25
Step-by-step explanation:
The slope of the line that passes through the points (3,14) and (7,9) is?
A:-5/4
B:-3/4
C:5/4
D:-4/5
Help needed ASAP!!!
Answer:
Angle b = 30 degrees
Step-by-step explanation:
3x = 90.
X= 30
Angle b = 30 degrees
Answer:
45
Step-by-step explanation:
because in total it's a 90-degree agle half of 90 is 45.
Do -2,28 and 0,15 have a slope of -6
Question 2 Using the estimates you found in question 1, convert the lengths into decimal numbers and then find the actual area of each tile.
Answer:
Step-by-step explanation:
Answer:
A: 5.0625
B: 10.16015625
C: 15.015625
Step-by-step explanation:
A coffee mug has a diameter of 8 centimeters. What is the mug's
circumference?
Use 3.14 for n.
centimeters
Submit
Answer:
25.12 cm
Step-by-step explanation
circumfernce=3.14n
c=3.14·8
c=25.12
what is the numeric value of E + B?
Answer:
19 is the numerical value
Step-by-step explanation:
Also, when it's converted to number I.e.
E = 14 , B = 11
= 14 + 11 = 25
But in letters the numerical value is
E + B = 19
2m + 56 = –2m
full answer no word
Find the value of each variable
X=
Y=
If you want another good app for math I suggest Conects
-2x -4y = -10
-7x -4y = -15
What is this in a ordered pair? (x,y)
Answer:
x=1,y=2
-2x-4y= -10 maltiple by -1 then 2x +4y
-7x-4y= -15
therfore 2x+4y=10
-7x-4y=-15 to find x or y you must zero one of them
ther fore 4y-4y=0
then 2x+(-7x)= -5x
-5x=10 +(-15) =-5
-5x = -5
divide by -5 both side,
x =1
to get the value of y the value of x supersed in to equation
-2(1) -4y = -10
-4y =-10 +2
-4y = -8 both dived by -4
y=2
Sue divided her garden into 12 equal sections. sue wants 1 /3 of her garden to be planted with carrots how many sections should be planted with carrots? Sue wants \frac{1}{3} of her garden to be planted with carrots. How many sections should be planted with ca
Answer:
4 sections
Step-by-step explanation:
What we know:
- There are 12 sections of the garden in total
- 1/3 will be planted with carrots
To determine the number of sections that should be planted with carrots, multiply 12 and 1/3.
[tex]12*\frac{1}{3}\\= \frac{12}{3}[/tex]
Simplify the fraction
[tex]= 4[/tex]
I hope this helps!
The triangles are similar. Find the missing side.*
- 36
- 25
- 29
Step-by-step explanation:
[tex] \frac{30}{6} = \frac{x}{5} \\ x = 25[/tex]