Answer:
What is the question? Surface area? Volume?
Step-by-step explanation:
During a building project, a brick is
dropped from a height of 1,936 ft. If the
equation for height as a function of time is
h(t) = -16t2 + initial height where t is time
in seconds and h(t) is height in feet, how
many seconds will it take for the brick to
hit the ground?
[?] seconds
Answer:
11 seconds
Step-by-step explanation:
h(t) = -16t^2 + 1936
When the brick hits the ground h = 0 so:
-16t^2 + 1936 = 0
-16t^2 = -1936
t^2 = -1936/-16
= 121
t = 11 seconds.
The amount of time taken by the brick to hit the ground is 11 seconds.
What is a function?A function in mathematics set up a relationship between the dependent variable and independent variable. on changing the value of the independent variable the value of the dependent variable also changes.
It is given that during a building project, a brick is dropped from a height of 1,936 ft. If the equation for height as a function of time is h(t) = -16t² + initial height. where t is time in seconds and h(t) is height in feet.
h(t) = -16t² + 1936
When the brick hits the ground h = 0 then the amount of time taken by the brick will be calculated as below:-
-16t² + 1936 = 0
-16t² = -1936
t² = -1936/-16
t²= 121
t = 11 seconds.
Therefore, the amount of time taken by the brick to hit the ground is 11 seconds.
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Last week, Thomas ran 5 1/4 miles. This week, he planes to run 1/2 as far as he ran last week. How many miles does Thomas plan to run this week?
Answer:
2.625
Step-by-step explanation:
Last week Thomas ran 5 1/4 miles
This week he plans to run 1/2 miles as far
Therefore the number of miles he plans to run cann be calculated as follows
= 5 1/4 × 1/2
= 21/4 × 1/2
= 21/8
= 2.625
Hence Thomas plans to run 2.625 miles
8.12394 rational or irrational
Answer:
rational
Step-by-step explanation:
if it does not terminate nor become periotic it is irrational other wise it is rational
Using the fact this is a 3, 4, 5 triangle, find the missing side *
Please help I will give 5 stars!
Answer:
0.8
Step-by-step explanation:
I Dont know 3, 4, 5 so I am going to just use the normal formula
a^2 + b^2 = c^2
0.6^2 + b^2 = 1^2
0.36 + b^2 = 1
b^2 = 0.64
b= 0.8
Directions:Find the measures of the missing angles in each trapezoid. Will give brainliest for full answer.Posted for the 4th time :(
Step-by-step explanation:
m<M=m<L=110°
m<N=m<O=x → 2x+2(110°)=360° → x=70°
m<E=180°-22°=158°
m<A=360°-(88°+22°+158°)= 92°
m<D=m<O=61°
m<S=m<G=x → 2x+2(61°)=360° → x=238/2 = 119°
Answer:
Step-by-step explanation:
1)∠L + ∠O = 180 {Co interior angles}
110 + ∠O = 180
∠O = 180 - 110
∠O = 70
Base angles of isosceles trapezoid are equal
∠M = ∠L
∠M = 110
∠O = ∠N
∠N = 70
2) ∠c + ∠A = 180 {Co interior angles}
88 + ∠A = 180
∠A = 180 -88
∠A = 92
∠D + ∠E = 180 {Co interior angles}
22 +∠E = 180
∠E = 180 - 22
∠E = 158
3) ∠O + ∠G = 180 {Co interior angles}
61 + ∠G = 180
∠G = 180 - 61
∠G = 119
Base angles of isosceles trapezoid are equal
∠D = ∠O
∠D = 61
∠S = ∠G
∠S = 119
Reflect across the y-axis. Fill in the new coordinates below:
Answer:
A(-1,2)
B(-4,4)
C(-3,1)
Step-by-step explanation:
simply reflect across the y-axis. pls give brainliest
The mid point of segment CD is M(-2,1). One endpoint is C (-5,7). What are the coordinates of the other endpoint D?
Answer:
d
Step-by-step explanation:
if its not right have a good day
help me pls!!!!!!!!!!
Answer:
R U A girl?
Step-by-step explanation:
Please helpppppp
-3x-42>3
And show work
Answer:
Step-by-step explanation:
-3x-42 > 3
Add 43 to both sides
-3x>45
Divide both sides by -3
x>-15
2 × 10^12 red blood cells have a total mass of 90 grams.
Work out the average mass of 1 red blood cell.
Give your answer in standard form.
Answer:
2×10¹² cells → 90 g
mass of 1 red blood cell : 90÷(2×10¹²) = 45×10^-12 g = 4.5×10^-11 g
Where is f of x equals the quotient of x plus 5 and the quantity x squared plus 9 times x plus 20 discontinuous?
A. -4
B. 5
C. f(x) is continuous everywhere
D. -5, -4
I need help. i dont know where to start......
Answer:
start at x
Step-by-step explanation:
you are welcome
Answer: x=27
Step-by-step explanation: the perimeter is rim of the shape. Since you are already given the perimeter you would need to subtract all of the sides from that number. 93-18-18-15-15= 27 you will be left with the answer to the remaining side.
The width of a picnic table is 3 times its length. If the length is 5/6 yd long, what is the area of the picnic table in square feet?
Step-by-step explanation:
Breadth
=5/6
Length
=15/6
Area of rectangle = l x b
=5/6 x 15/6
=75/6
Answer:
6 1/4 sq ft
Step-by-step explanation:
x = length = 5/6
y = width = 3x
so y = 3(5/6) or 15/6
A = length · width
A = 5/6 · 15.6 or 25/12 which is 6 1/4
Ariana compró cierto número de sacos de azúcar por S/. 675 y luego los vendió por S/. 1 080, ganando S/. 3 por cada saco. ¿Cuántos sacos de azúcar compró?
Responder:
135
Explicación paso a paso:
Número de bolsas compradas = x
Costo total de compra = 675
Costo total de ventas = 1080
Beneficio por bolsa = 3
Por eso :
Beneficio total + costo total de compra = costo total de ventas
3x + 675 = 1080
3x = 1080 - 675
3 veces = 405
x = 405/3
x = 135
Se compraron 135 bolsas
24 km
10 km
What is the length of the hypotenuse?
Answer:
20
Step-by-step explanation:
the hypotenuse is double the length of the shortest leg
PLZZZ HELP ITS ALMOST DUE
Answer:
Everytime x goes up 1 y goes up 3
Step-by-step explanation:
I mean its pretty obvious 1=2 2=5 3=8 4=11
The school librarian ordered 180 books. The order included 36 history books, 62 science books , and 34 English books. The rest of the books in the order are math books how many books did the librarian order"
Answer:
180
or if your looking for math books then
48
Step-by-step explanation:
36+62=98
98+34=132
180-132=48
Answer:
180
Step-by-step explanation:
Mr thompson!! Please help me sir!
Answers:
11) D. $3012) Two answers: choice C, choice D13) A. Subtract 100 from each side14) A. n = 9 and n = -5====================================================
Explanation:
11) We set p(120-4p) equal to zero to find that p = 0 is one solution and 120-4p = 0 leads to p = 30. The prices of $0 and $30 both lead to $0 in revenue. It sounds like your teacher wants the larger price value.12) We set each of the two revenue expressions equal to 600.13) Replace the (n-2)^2 with another variable. Let's call that x. So we have the equation 100+x = 149, which is the same as x+100 = 149. We subtract 100 from both sides to undo the +100.14) After following the steps in problem 13, you should have (n-2)^2 = 49, which then becomes n-2 = 7 or n-2 = -7 after applying the square root to both sides. Those two equations solve to n = 9 and n = -5 in that order.Leon got a reduction of $40 on a Geometry set
which was marked $480.
(a) What fraction was the reduction?
(b) What percentage was the reduction?
(c) What percentage of the cost did Leon
pay for the Geometry set?
30 points !! and brainlest !!!!! for best answer
Answer:
look below
Step-by-step explanation:
a. 3.888mm^2
b. 162km^2
c. 0.36cm^2
d.20.25cm^2
e. 9.6m^2
f. 128.832km^2
g. 110.4m^2
h.9.15cm^2
I. 0.084km^2
Interpret the y-intercept!, Brainiest will be given out!
Answer:
Y intercept = 3
Step-by-step explanation:
Answer:
b) At 10 years, the height is 24 feet
Step-by-step explanation:
what is the m<R???????
Answer:
128
Step-by-step explanation:
Hey There!
So the rule about interior angles of a trapezoid
is that the angles that lie on the segments that are not parallel are supplements
so essentially what I'm saying is that angle R and angle U are supplementary angles so to find x we do
180=15x+8+7x-4
step 1 combine like terms
15+7=22
8-4=4
now we have
180=22x+4
step 2 subtract 4 from each side
180-4=176
now we have
176=22x
step 3 divide each side by 22
176/22=8
so x=8
now we plug in 8 to 15x+8
8x15=120
120+8=128
so we can conclude that angle R = 128
In a recent year, a hospital had 4310 births. Find the mean number of births per day, then use that result and the Poisson Distribution to find the probability that in a day there are 13 births.
Answer:
11.8 ;
0.1036360
Step-by-step explanation:
Mean births per day, μ = number of births per year / number of days in a year ;
4310 / 365 = 11. 8 births per day
From poisson distribution :
P(x) = (μ^x * e^-μ) ÷ x!
P(x = 13) = (11.8^13 * e^-11.8) ÷ 13!
P(x = 13) = 6.453438E8 / 13!
P(x = 13) = 0.1036360
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During an exploratory activity, a student measured the diameter and circumference of several circular objects.
Answer:
what is the question? I need to know
Michael starts a website for people in his town to share news and photos. Before launching the website, he has his friends and family sign up. Then, he uses the equation shown to estimate the number of users, y, who will have signed up x weeks after he officially launches the website.
y = 82 ( 1.045 ) x
What is the rate of growth Michael expects each week after launching the website?
A. 104.5%
B. 95.5%
C. 4.5%
D. 0.045%
Answer:
Michael starts a website for people in his town to share news and photos. Before launching the website, he has his friends and family sign up. Then, he uses the equation shown below to estimate the number of user, y, who will have signed up x weeks after he officially launches the website.
y = 82(1.045)x
What is the rate of growth Michael expects each week after launching the website?
The answer will be %0.045
Step-by-step explanation:
The rate of growth Michael expects each week after launching the website is 4.5%.
Given that,
The function is y = 82 (1.045)x.We need to find the rate of growth.Based on the above information, the calculation is as follows:
Since 1.045 is given so this means 4.5% is the growth rate.
Therefore we can conclude that the rate of growth Michael expects each week after launching the website is 4.5%.
Learn more: brainly.com/question/16115373
HELPPPP I will mark brainiest wow I can’t spell
Answer:
V=[tex]\frac{28\pi }{3}[/tex]
Step-by-step explanation:
Plug and chug into the formula, your radius is 2ft, and your height is 7ft.
[tex]V=\pi*2^{2} *\frac{7}{3}[/tex]
V=[tex]\frac{28\pi }{3}[/tex] or 29.30 if [tex]\pi =3.14[/tex]
The Great Pyramid of Cheops is a square-based pyramid. The base has sides of 230m, and a height of 147m.
Using the same material, what would the height be if you gave the base sides of 250m?
height = ___m
What makes a rhombus special?
Answer:
A rhombus is a special parallelogram because its sides are always equal.
On a map of Arizona 2 inches represents 54 miles. The map distance from Yuma to Sentinel is 3 inches. What is the actual distance in miles between the cities?
Answer: 81 miles
Step-by-step explanation:
if 2 inches = 54miles then 1 inch is 27 miles because 54/2=27
so 3 inches means 3(27)=81 miles from yuma to sentinel