Answer:
That would be an obtuse-scalene triangle.
Step-by-step explanation:
It is scalene because none of the sides are congruent. This means that none of the angles or sides are the same.
Part of a cross-country skier's path can be described with the vector function r = <2 + 6t 2 cos(t), (15 − t)(1 sin(t))> for 0 ≤ t ≤ 15 minutes, with x and y measured in meters.
The derivatives of these functions are given by x′(t) = 6 − 2sin(t) and y′(t) = −15cos(t) + tcos(t) − 1 + sin(t).
Find the slope of the path at time t = 4. Show the computations that lead to your answer.
Find the time when the skier's horizontal position is x = 60.
Find the acceleration vector of the skier when the skier's horizontal position is x = 60.
Find the speed of the skier when he is at his maximum height and find his speed in meters/min.
Find the total distance in meters that the skier travels from t = 0 to t = 15 minutes.
https://www.coursehero.com/tutors-problems/Calculus/16028189-Part-of-a-cross-country-skiers-path-can-be-described-with-the-vector/
6. The number of bacteria N in a culture is given by the model N(t) = 250e 0.0156 where t is the time in hours.
Find how many hours it takes for the original population to double. Round your answer to the nearest hundredth
of an hour.
i just need to know how to work this out!! please help
Answer:
t ≈ 44.43 hours
Step-by-step explanation:
Expression that models the population of a bacteria after time 't' is,
N(t) = [tex]250(e^{0.0156t})[/tex]
Here initial population = 250
And N(t) = Population after 't' hours
t = duration
We have to find the duration in which bacterial population gets doubled.
N(t) = 2×250 = 500
From the given expression,
500 = [tex]250(e^{0.0156t})[/tex]
[tex]e^{0.0156t}=2[/tex]
[tex]\text{ln}(e^{0.0156t})=\text{ln}(2)[/tex]
0.0156t[ln(e)] = 0.693147
0.0156t = 0.693147
t = [tex]\frac{0.693147}{0.0156}[/tex]
t = 44.432
t ≈ 44.43 hours
i need help here and if you dont help you will be flaged
Answer:
Answer below (dont flag people if they dont get it right, that's just messed up).
Step-by-step explanation:
The scale factor is 1.5
Determine which translations would map Figure L onto Figure M. Help please !!!!!!! Will be marking Brianliest !!!!!!!!!!!!!!!
Answer:
8 points left and 7 points downStep-by-step explanation:
Get the difference of one point on M and corresponding point on L, and find the difference of coordinates.
Lets take top right points:
(7, 9) and (-1, 2)The difference:
-1 - 7 = -8 ⇒ 8 points left2 - 9 = -7 ⇒ 7 points down1. What is the prime factorization of 402? *
Your answer
Answer:
Step-by-step explanation:
Prime factorization requires dividing by primes starting with smallest prime number
402/2=201
201/3=67, 67 is prime so we cannot go further so the prime factorization of 402 is
2X3X67
Which of the following is not a Unit fraction.
Answer:
7/16
Step-by-step explanation:
unit fractions have 1 as their numerator.
Every row consists of 2,3 and 2 seats each. If there are 51 horizontal rows, and 13 seats are empty. How many passengers are on board?
Answer:
344
Step-by-step explanation:
Answer this question to get marked at brainliest!!!!
Answer:
The most feasible answer would be the first option - 47
Step-by-step explanation:
This is true because if we look at the triangle it looks as if the sides have equal length, but if we look closely we will notice that the b side is angled more by a slight inch, compared to the other side, thus your answer should be 47 - the first option
Joe is trying to solve the equation for x
3x – 7 = 30
What would be the best first step Joe could Make to solve the equation?
A. Divide 3X by 3
B. Divide both sides by 30
C. Subtract 7 from the left side of the equation
D. Add 7 to both sides of the equation
Answer:
Step-by-step explanation:
D Add 7 to both sides
This makes it 3x=37
x=37/3
Artie
25%
Len
20%
Wen
30%
Gina
25%
Artie, Len, Gina, and Wen divided a carton of baseball cards as shown in the circle graph above. If Wen's
share was 60 cards, what was Gina's share of the cards?
25
50
100
200
Answer:
50
Step-by-step explanation:
Wen: 30% of the total number of cards = 60 cards
Set this up as an equation
30/100 = 60/x
Cross multiply
30 × x = 100 × 60
30x = 6000
Divide both sides by 30 to isolate the variable
x = 200
There are 200 cards total
Gina: 25% of the total 200 cards
Set this up as an equation
25/100 = x/200
Cross multiply
25 × 200 = 100 × x
5000 = 100x
Divide both sides by 100 to isolate the variable
50 = x
Gina's share is 50 cards
pls help me with this. will make u brainliest
According to the table,
it should be (5,9) and (8,10.5)
Do you have good methods to calculate double digit multiplication quickly and mentally? Plzzz give me some good tips. WILL GIVE BRAINLIEST!!!!!
Answer:
You can use grid method.
That is easy.
Can you guys please help me!!!
Answer:
It should be A
Step-by-step explanation:
I hope this helps
9) help me pls I have the ANSWERS I just need to show the WORK
How would you “find “x” in the diagram?
Answer: D
9514 1404 393
Explanation:
We have to assume the triangle is a right triangle.
In a 30°-60°-90° right triangle the side lengths have the ratio ...
short side : long side = 1 : √3
This lets you write the proportion ...
x/15 = 1/√3
Multiplying by 15 gives ...
x = 15/√3 . . . . . . matching choice D
__
There are other ways to get there. One of them is ...
x = 15·tan(30°) = 15/√3
i’ll give a brainiest to the correct answer!!!!
WILL MARK BRAINLIEST TO THE FIRST PERSON
Answer:
5
Step-by-step explanation:
7^2 = (2(6)^1/2)^2 + BC^2 (Pyth. theorem)
BC = 5
Answer:
its supposed to be 6.08 but we can take of..08 so 6
Step-by-step explanation:
[tex]a + b = c \\ ( 2 \sqrt{6} ) {}^{2} + {b}^{2} = {7}^{2} \\ 2 \times 6 + {b}^{2} = 49 \\ {b}^{2} = 49 - 12 \\ {b }^{2} = 37 \\ \sqrt{b} {}^{2} = \sqrt{37} \\ b = 6.08 \: or \: 6[/tex]
It takes 32 minutes to bike 8 miles on the trail. How long would it take to
bike 2 miles? Help please!!!!
Answer:
8 minutes cause 32/8 = 4 then 4 x 2 = 8
Step-by-step explanation:
The difference between four times a number x and 5 is 24.
Answer:
4x - 5 = 24
x= 7.25
Step-by-step explanation:
4x - 5 = 24
4x= 24 + 5
x = 29 / 4 = 7.25
I hope im right!!
I need help with question 3 please
Answer:
there's nothing there..
Step-by-step explanation:
Answer:
i need the question to answer though
Step-by-step explanation:
What is the solution to the system of equations? y = x + 3 3x - 4y = -7
Answer:
x=-5 & y=-2
Step-by-step explanation:
Step 1: Solve y=x+3 for y:
y=x+3
Step 2: Substitute x+3 for y in 3x-4y =-7:
3x-4y=-7
3x-4(x+3)=-7
-x-12=-7 (Simplify both sides of the equation)
-x-12+12=-7+12 (Add 12 to both sides)
-x=5
-x/1=-5/-1 (Divide both sides by -1)
Step 3: Substitute -5 for x in y=x+3:
y=x+3
y=-5+3
y=-2 (Simplify both sides of the equation)
x=-5 and y=-2
14. Find x, y, and z in the figure.
900
2ནས་
15. Find x and y in the figure.
3
4yº (5r-20)
we know that
The sum of the internal angles in the triangle must be degrees
see the attached figure with letters to better understand the problem
Step
Find the measure of the angle x
In the triangle ABC
solve for x
therefore
the answer Part a) is
the measure of angle x is
Step
Find the measure of the angle z
we know that
--------> by supplementary angles
substitute the value of x
therefore
the answer Part b) is
the measure of angle z is
Step
Find the measure of the angle y
In the triangle ACD
solve for y
therefore
the answer Part c) is
the measure of angle y is
a shopkeeper mixed 15.25 kg of hazelnuts with 4.75 kg of raisins. He packed the mixture equally into 5 boxes. What is the weight of each box?
Answer:
4kg
15.25 + 4.75 = 20
20/5 = 4
Step-by-step explanation:
Answer:
4 kgs
thats the sum by 5
hope it helps
Find the distance between each pair of points. simply the radicals no decimals (-12, 3) (-3, 15)
Answer:
15
Step-by-step explanation:
distance formula = square root of difference of y-values subtracted by difference of x-values
d = [tex]\sqrt{144+81}[/tex] = 15
Answer:
Step-by-step explanation:
d^2=dx^2+dy^2
d^2=(-3+12)^2+(15-3)^2
d^2=81+144
d^2=225
d=15
If CA= 4x and CB= 8x-12 , what is the length of CA ?
Answer:
Step-by-step explanation:
CA and CB are both opposite equal 90 degree angles so are equal so we can say
8x-12=4x
4x-12=0
4x=12
x=3, since CA=4x
CA=4(3)=12
Which expressions are equivalent to (5g+3g+4)x2
Sandy can hold her breath 5/6 minute. Adele can hold her breath 3/6 minute longer than Sandy. How long can Adele hold her breath?
Answer:
4/3 minute
Step-by-step explanation:
You can just add up both numbers and simplify it: 5/6+3/6=8/6=4/6.
In ΔABC, the measure of ∠C=90°, the measure of ∠A=63°, and AB = 35 feet. Find the length of CA to the nearest tenth of a foot.
Answer: 15.9 feet
Step-by-step explanation:
Answer:
15.9
Step-by-step explanation:
You are applying for a fuel tax rebate. The amount of fuel road tax is 32 cents per gallon. If the refund is 50 % of this amount, what is the refund for 8,000 gallons of fuel?
Answer: $1,280
Step-by-step explanation:
The refund one a gallon is 50% of the cost of the gallon which is $0.32.
The refund on a gallon is:
= 50% * 0.32
= $0.16
If it was for 8,000 gallons the refund would be:
= 8,000 * 0.16
= $1,280
please help i’m in a test rn. Consider the geometric sequence -7, 14, -28, .... Select all that apply.
A
The 8th term is –7(-2)
B
The common ratio is 2.
С
The 9th term is greater than the 10th term.
D
The 7th term is 4 times the 5th term.
E
The 5th term of the sequence is -112.
nsweres el dodeel s Step-by-step explanationen
What is half of one inch?
Answer: Half of a half an inch is a quarter of an inch. Which is more, 24 inches or 1 yard? Hope this helps can u give me brainliest
Step-by-step explanation:
Answer:
the half of one inch is 1.27cm