Answer:
4/5w=8
cross multiply
8×52/w=4
40w=4
w=4/40
w=0.1
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the
time after launch, x in seconds, by the given equation. Using this equation, find the
time that the rocket will hit the ground, to the nearest 100th of second.
y = –16x2 + 119x + 57
Answer:
7.89 seconds
Step-by-step explanation:
using the quadratic formula (-b+-√(b^2-4ac))/2a
a=-16 b=119 c=57
x=-0.451
and
x=7.889
time cant be negative so use the positive x
Time required for the rocket to hit the ground would be 7.9 s.
What is a quadratic equation?A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.
We are given the quadratic equation as;
-16x² + 119x + 57 = 0
By using the quadratic formula,
x = [-b ± √b² - 4ac]/2a
Here, a = -16, b = 119 and c = 57
b² - 4ac = (119 )² - 4(-16)(57)
= 14161 + 3648
= 17809
So, x = [-(119) ± √17809]/ 16(2)
= (-119 ± 133.4)/32
Therefore, the time is 7.9 s.
Learn more about quadratic equations;
brainly.com/question/17177510
#SPJ2
the sum of three whole numbers in a row is 57. what are the three numbers?
Answer:
18, 19, 20
Step-by-step explanation:
(n) + (n + 1) + (n + 2) = 57
3n + 3 = 57
3n = 57 - 3 = 54
n = 54/3 = 18
three numbers are 18, 18+1, 18+2
18, 19, 20
Answer:
18,19,20
Step-by-step explanation:
x + (x+1) + (x+2) = 57
x + x + 1 + x + 2 = 57
Combine like terms
3x + 3 = 57
subtract 3 from both sides
3x = 54
divide both sides by 3
x = 18
The answer is 18, 19, 20
Since we know the value of x, we can look at it like this:
x + (x+1) + (x+2) --- > 18 + (18+ 1) + (18+2) --> 18 + 19 + 20
what ratios are equivalent to 4:1
Answer:
12:3
Step-by-step explanation:
A teacher distributed 36 pencils evenly among the students in her class. How many students can be in the class?
The number of students can be...
Answer:
In the class there can be 18/36/12/9/6/4 etc... Students
Answer:
they are 12 in the class 3 for each one of them in twelve places
( WILL GIVE BRAINLY IF IM ABLE TO) Select the correct answer.
A recipe for a loaf of bread calls for of a cup of flour. If Milo used 12 cups of flour, how many loaves of bread did he prepare?
A.
18
B.
16
C.
15
D.
12
E.
8
Answer:
Answer d
Step-by-step explanation:
Answer:
12 Loaves of bread :D
Step-by-step explanation:
hope that helped , have a great day !!
The greatest possible number whose digits are all even numbers from 1 to 9
Answer:
8642Step-by-step explanation:
Our even numbers from 1-9 are:
2,4,6,8The largest possible number using the even numbers once is 8642.
Hoped this helped
Can someone help plz
BRAINLIEST, 5 STARS, AND A THANKS FOR WHOEVER HELPS!
Which statement about the answer to this problem is most accurate?
5\6−3\8=19\24
The answer 19\24 is reasonable because both fractions are closer to 1\2 than they are to 1, making the difference close to 0.
The answer 19\24 is reasonable because 5\6 and 3\8 are both closer to 1 than to 1\2, making the difference close to 0.
The answer 19\24 is not reasonable because 5\6 is closer to 1 than to 1\2, and 3\8 is close to 1\2, making the difference close to 1\2.
The answer 19\24 is not reasonable because 5\6 is closer to 1\2 than to 1, and 3\8 is closer to 0 than to 1\2, making the difference close to 1\2.
Answer:
The answer 19\24 is not reasonable because 5\6 is closer to 1 than to 1\2, and 3\8 is close to 1\2, making the difference close to 1\2.
Step-by-step explanation:
Answer:
1/2 1 0
Step-by-step explanation:
Quiz 2
You might need: Calculator
Naoya read a book cover to cover in a single session, at a rate of 55 pages per hour. After 4 hours, he had
350 pages left to read.
Let y represent the number of pages left to read after a hours.
Complete the equation for the relationship between the number of pages left and number of hours.
y =
Total pages read after 4h
[tex]\\ \sf\longmapsto 4(55)=220pages[/tex]
Pages left=350
Now
[tex]\\ \sf\longmapsto y=350+220[/tex]
[tex]\\ \sf\longmapsto y=570[/tex]
Can someone help’ it’s due today pls help pls pls
Answer:
MQP = 138
Step-by-step explanation:
Since the angle bisector always divides the angle in half exactly, we know both of the angle measures we have are the same, and set it up like this: 5x + 19 = 2x + 49 (subtract 2x from both sides) 3x + 19 = 49 (subtract 19 on both sides) 3x = 30 (divide by 3) x = 10
Substitute that x value (10) into the original equations in place of x for each angle to get MQN = 69 and NQP = 69
Add the two values to get 138. MQP = 138
Answer:
138
Step-by-step explanation:
QN bisects ∠MQP. ⇒ ∠MQN = ∠NQP
5x + 19 = 2x + 49
Subtract 19 from both sides
5x = 2x + 49 - 19
5x = 2x + 30
Subtract 2x from both sides
5x -2x = 30
3x = 30
x = 30/3
x = 10
∠MQN = 5x + 19
= 5*10 + 19
= 50 +19
= 69
∠MQP = ∠MQN +∠NQP = 69 + 69 = 138
pasagot po please
answer it please
Answer:
24 I hope help you yieeeeeee
Answer:
ummmmmmmmmmm itsssssssss
Step-by-step explanation:
A framer's market sells apples for $0.75 per pound and oranges for $0.89 per pound
Answer:
160
Step-by-step explanation:
jbuyvcezxrctvubnjonjbvcrexwexcrvbnmnbvcrxewexrcvtbn
Giving away free pojntnabe afastbenpugb to get them or they’ll be all out
Answer:
thanks
Step-by-step explanation:
Answer:
yE thanks pEEP!
Find the perimeter of a rectangle whose length is 12 longer than its width
with an area of 45 square feet. To earn 5 points write the mathematical
sentence, the value of Length, width and perimeter
Answer:
l = 21
w = 9
P = 60
Step-by-step explanation:
l = 12 + w
A = l*w = 45
substitute l = 12 +w
45 = (12 + w) * w
45 = 12w + w^2
w^2 + 12w - 45 = 0
w^2 + 2*6*w +36 = 45 + 36 (added 36 on both sides 6^2)
(w + 6) ^2 = 45+36 = 81
w + 6 = +-9
As width cannot be negative w = 9
so l = 12 + 9
= 21
Perimeter = P = 2 (l + b)
= 2 ( 21 + 9)
= 2 (30)
= 60
4321 base seven+1234 base seven
Answer:
Step-by-step explanation:
4321
1234
5555
5555 in base 7 is equal to 2000 in base 10
Answer:
3890
Step-by-step explanation:
1. Break down 4321 and add.
1=1
2=14
3=210
4=2800
3025
2. Break down 1234 and add.
4=4
3=21
2=140
1=700
865
3. Add them together to get 3890
I'm probably wrong but whatever.
What answer can you get from this problem?
(2y-9x) ^2 please, I am in a crunch
Answer:
www.symbolab.com , its a easy algebra calculator. wish u luck
Step-by-step explanation:
picture included.. math
Answer:
quotient
example:
in a statement like 35 / 7 = 5 ,
35 is the dividend, 7 is the divisor, and 5 is the quotient
After how many seconds does the object hit the
ground?
02
O4
O 8
O 16
Answer:
this is prolly the easiest 20 points you’ll get
Answer:
3rd option
Step-by-step explanation:
When the object hits the ground the height h(t) = 0 , then
- 16t² + 96t + 256 = 0 ( divide through by - 16 )
t² - 6t - 16 = 0 ← in standard form
(t - 8)(t + 2) = 0 ← in factored form
Equate each factor to zero and solve for t
t - 8 = 0 ⇒ t = 8
t + 2 = 0 ⇒ t = - 2
but t > o , then object takes 8 seconds to hit the ground
Work out the median age !!
Answer:
B
Step-by-step explanation:
Which expression is undefined?
Answer:
D
Reasoning:
Anything that is divided by zero is undefined.
Answer this problem pls
Answer:
The measure of the hypotenuse squared is equal to the sum of the side measures squared.
Step-by-step explanation:
I used process of elimination to find the odd one out. All of the other facts are true hence the last one is wrong.
There
B
Angi
Does
You
950
Diagram NOT
accurately drawn
D
F
550
G
с
* AGC and DEF are parallel lines.
ADB and GE are parallel lines.
BEC is a straight line.
Angle DBE = 95°
Angle CGE = 55°
Work out the size of the angle marked x.
Give reasons for each stage of your working.
Answer:
30
Step-by-step explanation:
Attached picture...
Answer:
Step-by-step explanation:
In the image below.
I hope I've helped you.
line w passes through point (-6,-7) and has a slope 1/2. what is the equation for the line in point-slope form?
Answer:
y + 7 = [tex]\frac{1}{2}[/tex] (x + 6)
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b ) a point on the line
Here m = [tex]\frac{1}{2}[/tex] and (a, b ) = (- 6, - 7 ) , then
y - (- 7) = [tex]\frac{1}{2}[/tex] (x - (- 6) ) , that is
y + 7 = [tex]\frac{1}{2}[/tex] (x + 6)
Yall I need help plsssssss help meeeeeee
Answer:
8. Scalene
9. Isosceles
10. Scalene
plz plzz plz mark as brainliest
The Parks Department is planting trees. Maple treed cost $50 each and oak trees cost $40 each. The tree-planting budget is 1000.
If the Parks Department buys 10 maple trees, how many oak trees can they buy? Round to nearest whole if necessary.
Answer:
Step-by-step explanation:
Write an equation of a line in slope-intercept form with the given slope and y-intercept:
slope: 3/4 ; y-intercept: -8
Answer:
y=3/4x-8
Step-by-step explanation:
the marked price of a calculator is 1800 the shopkeeper allows 10%discount and still makes 8%profit at what price did the shopkeeper purchase the calculator
Answer:
multiple 1800 by 10%
1800 ×10%180subtract the selling price from the discount given.1800 -180Ans: 1,620
multiple 1800 by 8%
1800 × 8%1,656subtract the selling price from the discount given.1800 - 1,656Ans: 144
subtract the discount of 10% from 8%
1620 -144
Ans:1,476
so therefore the price for the calculator is 1476.
can someone help me with this?
Carlos took a 3-day car trip. on the second day he drove 360 miles. on the third day he drove 3 times as far as he did on the first day. if his trip was 1080 miles long, how far did Carlos drive on the first?
Answer:
240mi
Step-by-step explanation:
1080 - 360 = 720
720 / 3 = 240
240 day 1 + 360 day 2 + 720 day 3 = 1080 total
A pizza buffet has prepared 15 pizzas to place on the line at the beginning of lunch at 11:00 a.m. The equation used to describe the total number of pizzas that have been placed out on the buffet line is shown below.
y = 11x + 15
If x represents every 8 minutes after 11:00 a.m, which statement best describes the rate of change in the number of pizzas set out on the buffet?
A.
Every 16 minutes, 11 more pizzas were set out on the buffet.
B.
Every 16 minutes, 22 more pizzas were set out on the buffet.
C.
Every 16 minutes, 32 more pizzas were set out on the buffet.
D.
Every 8 minutes, 21 more pizzas were set out on the buffet.
HELP!!!
Answer:
B. Every 16 minutes, 22 more pizzas were set out on the buffet.
Step-by-step explanation:
At 11:00 am, x would be equal to 0, and there would be 15 pizzas on the buffet line. Then, every 8 minutes, 11 more pizzas are added to the buffet line. So in 16 minutes, 22 pizzas will be added to the buffet.
[tex]\frac{16}{8} =2\\(11)(2) = 22[/tex]
