2. The velocity of an object in motion is given by the function y(t)=-78.4t + 288 where vt is the velocity of the object in meters per second at time t.
B. After how many seconds does the object momentarily come to rest and then change directions?
Answer:
t = 3.7 seconds
Step-by-step explanation:
Linear Modeling
The velocity of an object is modeled by the function
v(t) = -78.4t + 288
Where v is expressed in m/s and t is expressed in seconds.
The velocity is a vector, therefore its sign indicates its direction. If the object is at rest, then its velocity has a magnitude of zero.
To find when the object comes to rest, we set the velocity to 0:
-78.4t + 288 = 0
Now solve for t. Subtracting 288:
-78.4t = -288
Dividing by -78.4:
t = -288 / -78.4
t = 3.7 seconds
If a 18 25 fl oz bottles cost $144.00 how much does one bottle cost?
Answer:
One 25 fl oz bottle costs $8
Step-by-step explanation:
144÷18=8
Answer:
8$ if my math is correct.
Step-by-step explanation:
Kind of a trick question. It is asking how much each bottle costs. You know that there are 18 bottles and have a total cost of $144. You do not need the 25oz for this equation. Lastly, I divided the total cost by 18 to get the total of 8$ for each bottle
ASAP help me please!!!!!!!!!
Answer:
c would be your answer:)
Answer:
D. x=-2
Step-by-step explanation:
Pluggy chuggy those answer choices and -2 is the only one that works. The rest of the answer choices are extraneous. Therefore the answer is -2 and can not be infinitely many solutions since B and C do not work.
A triangle has side length of 2x, 3x-1, 4x +8 find the expression for the perimeter
Answer: 2x+3x-1+4x+8
A soccer ball kicked from the ground with an initial velocity of 32 ft/s is given by the function When is the soccer ball moving through the air? {t | –2 < t < 2} {t | –4 < t < 4} {t | 0 < t < 2} {t | 0 < t < 4}
Answer:3rd one
Step-by-step explanation: Took the test
Answer:
answer is C. {t | 0 < t < 2}
Step-by-step explanation:
I need some help graphing this
Answer:
1.512445e+216
Step-by-step explanation:
To make rice, you mix 1.5 cups of water for every 1 cup of dry rice. This will make 2 servings. How many cups of dry rice and how many cups of water will you need to serve 10 people?
Answer:
7.5 cups of water
5 cups of dry rice
Step-by-step explanation:
In total 1.5 water and 1 cup rice will equal 2 servings. If you are serving 10 people, you need to multiply each by 5.
Common factors 48 and 92
Answer:
4, 2, 1
Step-by-step explanation:
The factors of 48 are 48, 24, 16, 12, 8, 6, 4, 3, 2, 1.
The factors of 92 are 92, 46, 23, 4, 2, 1.
The common factors of 48 and 92 are 4, 2, 1.
Write the number to least to greatest
Answer:
C
Step-by-step explanation:
4/15 is 2.66666 which makes it the larges putting it last
everything else is self explanitory
Solve 3/5 k - 5 = 7/10 k by eliminating the fraction. Explain how you determine what to multiply each term by and all the steps to solving the equation.
Answer:
k = -50
Step-by-step explanation:
3/5k - 5 = 7/10k
3*2 / 5 *2 = 6/10 to get a common denominator
6/10k - 5 = 7/10k subtract 6/10 from 7/10
-5 = 1/10k now eliminate fraction by multiple both sides by reciprocal (10/1)
-5(10) = 1/10(10)k
-50 = k
Write 4% as a fraction. There is no need to simplify, your answer.
Answer:
4/100
Step-by-step explanation:
% or per cent means "in a hundred"
Which of these can help you become a better test-taker?
A. Knowing that there are different strategies for different types of
tests
B. Being able to skim through large amounts of reading
c. Understanding how to use an outline to take organized notes
D. Taking tests only during the time of day when your mind is most
active
Answer:
c
Step-by-step explanation:
Translate this phrase into an algebraic expression.
10 more than twice a number
Use the variable n to represent the unknown number.
Answer:
n x 2 + 10
Step-by-step explanation:
All you need to do is apply this say to a number like 10 for ex: 10 x 2 + 10
= 20 + 10
= 30
Now do the same with n!
n x 2 + 10 and there is your answer!
A video game has the following formula: For every 1,333 in attack power, you gain 3 levels. You get one bonus star per every 38 levels completed. If a player has an attack power of 0.21 million, how many bonus stars could they get? Round to a whole number.
Answer:
Rounded to a whole number, the player has 12 bonus stars.
Step-by-step explanation:
Since the video game establishes that for every 1,333 points of attack power 3 levels are gained, and that the player has a total of 0.21 million attack points, to determine the number of levels that player has it is necessary to perform the following calculation :
0.21 million = 210,000
210,000 / 1,333 x 3 = Levels
472.6 = Levels
Now, every 38 levels, the game awards a bonus star. To determine the amount of bonus stars that the player has, the following division must be made:
472.6 / 38 = X
12.43 = X
Thus, rounded to a whole number, the player has 12 bonus stars.
0.142857143 as a fraction
Answer:
14287143/1000000000 :)
Step-by-step explanation:
Answer:
142857143 / 1000000000
Step-by-step explanation:
Hailey is shopping at a department store during a 20% off everything sale. She also has a coupon for $5.00 off the sale amount
Answer: 87.50
Step-by-step explanation:
Original price of a comb: S1.50
Discount: 10%
Answer:
After the discount, the comb would be $1.35
Step-by-step explanation:
what is the smallest six-digit number you can make that is divisible by five
it's 100000
hope this helps!! :)
In the diagram above, Z1 = 135º.
Find the measure of Z3.
Z3 = ?
Answer:
Angle 3= 135
Step-by-step explanation:
Angle 3=Angle 1 because they are corresponding angles meaning they are equal and on the same side of the traversal.
Hope this helped and the answer was right in the question
Answer:
∠3 = 135°Step-by-step explanation:
corresponding angles are congruent, equal to each other.
therefore, ∠1 ≅ ∠3 which is 135°
Which ordered pair would form a proportional relationship with the point graphed below?
100 iv
90
8 8 8 8 8 8 3 8
45, 30)
10 20 30 40 50 60 70 80 90
X
(10. 10)
(25, 35)
(70.50
(90.60)
A company makes 100 bags. 32 of the bags have buttons but no zips. 32 of the bags have zips but no buttons. 35 of the bags have neither zips nor buttons. How many bags have zips on them?
Answer:
32
Step-by-step explanation:
we have 60,30,9,42- ?
Answer:
What’s the freaking question G ??!?
Please help I will give 15 points and a Brainlylist
Answer: 6/14 and 42/99
Step-by-step explanation:
David earns a 4% commission for all the furniture he sells if David receives 7500 in commission this year what is the dollar amount of his sales
Answer:
$187,500
Step-by-step explanation:
Answer:
$187,500, but I could be wrong.
Step-by-step explanation:
7500=0.04x
I need help with number 3 please help it’s due on nov 4th.
Find the missing figure to figure 4
A shirt is regularly priced at 42$. It is on sale for 15% off of the regular price. What is the sale price of the shirt ?
Answer:
$35.7
Step-by-step explanation:
you can convert 15% to a decimal by dividing by 100.
15/100 = .15
if you multiply the decimal by the cost of the shirt you get how much the discount is.
0.15 * $42 = 6.30
so a 15% discount on a $42 shirt is $6.30 off. So you subtract the discount from the total cost.
$42 - $6.30 = $35.70 that is the sale price of the shirt.
Answer:
$35.7
Step-by-step explanation:
Please help last question
Answer:
1/3x
The point (135,45) as well as all other listed points falls on the line 1/3x=y
Hope this helps! :)
Can someone solve this? Please!!!!
You just need to solve for X in the drawing
Answer:
3y and 1y
Step-by-step explanation:
Which set could represent P?
What value is equivalent to 3 x 12 / (4 + 2) ? Answer to work the problem is 6. Is that the value? I’m reading the expression as tho there should be a variable
Answer:
6
Step-by-step explanation:
3x12 = 36
(4+2) 6
simplify
36/6=6
The value is indeed 6 and there shouldn't be a variable because if there is, then there should be a variable in the question.
The simplified form of the expression (3 × 12)/(4 + 2) is 6.
What is PEMDAS rule?PEMDAS rule states the correct order of simplifying an expression is as follows -: Parenthesis, exponents, multiplications, divisions, additions, and, subtractions.
Given, An expression (3 × 12)/(4 + 2).
Now, 12×3 is 36, and (4 + 2) is 6.
Therefore the simplified form of the expression is,
= 36/6.
Now, we know that 6 times 6 is 36 so, 36 divided by 6 the quotient should be 6.
Therefore,
36/6.
= 6.
So, The value of the expression (3 × 12)/(4 + 2) is 6.
learn more about numerical expressions here :
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