Answer:
The toy reaches the ground in 10 sec
Step-by-step explanation:
When the rocket hits the ground, h becomes zero (0). Thus, our problem here is to solve the equation h(t) = −4.9t^2 + 50t + 2 = 0,
Because of the fractional coefficient -4.9, it's best to use the quadratic equation here. The coefficients of the t terms are {-4.9, 50, 2}. Thus,
the discriminant is b^2 - 4ac = 50² - 4(-4.9)(2) = 2539.2, and the square root of this is 50.39.
The quadratic formula is as follows:
-b ± √discriminant
t = -------------------------------
2a
which here is:
-50 ± 50.39
t = ------------------------ Since t represents time, only the positive result
-9.8 is relevant here; it is 10.24 sec,
which rounds off to 10 sec
The toy reaches the ground in 10 sec
please help me with this
Answer:
Dimensions are 10 x 9 x 7 and 9 x 4 x 5
Step-by-step explanation:
Divide the prism on the line that is 12cm
Chuin has 18 coins in his pocket. He has nickels and dimes that total $1.45. How many nickels and how many dimes does he have? Write and solve a system of equations to find the answer.
A. 10 Nickles, 8 dimes
B. 9 nickles, 9 dimes
C. 8 nickles, 10 dimes
D. 7 nickles, 11 dimes
Answer:
D
Step-by-step explanation:
Let n represent the number of nickels and d represent the number of dimes Chuin has.
Since Chuin has a total of 18 coins in his pocket, the sum of the number of nickels and dimes must total 18. So:
[tex]n+d=18[/tex]
The total worth of the coins is $1.45. Since each nickel is worth $0.05 and each dime is worth $0.10:
[tex]0.05n+0.1d=1.45[/tex]
Solve the system. We can use elimination (you can use substitution if you prefer, it works just as perfect!). First, multiply both sides of the second equation by 10:
[tex]0.5n+d=14.5[/tex]
Next, we can multiply the first equation by negative one:
[tex]-n-d=-18[/tex]
Add the two equations together:
[tex](0.5n+d)+(-n-d)=(14.5)+(-18)[/tex]
Simplify:
[tex]-0.5n=-3.5[/tex]
Divide both sides by -0.5. So:
[tex]n=7[/tex]
Chuin has seven nickels.
Using the first equation again, substitute n for 7 and solve for d:
[tex](7)+d=18\Rightarrow d=11[/tex]
Therefore, Chuin has seven nickels and 11 dimes.
Our answer is D.
which angles are adjacent to each other ? select all that apply
BRAINLIEST IF CORRECT
Answer:
[tex]25\%[/tex]
Step-by-step explanation:
Experimental probability represents probability based on an experiment conducted. In the question, it states 40 marbles were drawn and the graph shows that yellow was drawn 10 times. Thus, the experimental probability is [tex]\frac{10}{40}=\frac{1}{4}=\boxed{25\%}[/tex]
Answer:
25%
Step-by-step explanation:
which product has 4 zeros after the digit 3?
a. 0.3 x 10 power 4
b. 0.03 x 10 power 5
c. 0.03 x 10 power 4
d. 0.03 x 10 power 5
Answer:
0.03 x 10 power 6 will only have 4 zeros after the digit 3
Petra jogs 4 miles in 36 minutes. At this rate, how long would it take her to jog 12 miles?
Answer:
90 minutes or 1 hour and 30 minutes.
Step-by-step explanation:
9/4 = blank divided by 4
please help- what is blank
Answer:
9
Step-by-step explanation:
You gave the answer right in your question
Evaluate the expression n=2.
8(n + 1) = ___
Answer:
I believe it's 24
Step-by-step explanation:
because 2+1 is 3 and then 3 times 8 is 24
Answer:
24
Step-by-step explanation:
Equation: 8(n + 1)
Plug in n = 2
New equation: 8(2 + 1)
Simplify: 8(3)
Simplify: 24
Answer: 24
Which table represents a nonlinear function?
Can you plzz find the width...and give steps
Answer:
12
Step-by-step explanation:
We know that Tyler's chest has a length of 30 inches, width of 16, and a height of 24 inches. To find the volume of the chest, multiply the length by width by height: 24*30*16 = 11,520 in^3 The volume is 11,520.
Juliet's chest will Have a length of 40 inches and the same height as Tyler's chest, or 24 inches. It also has the same volume of Tyler's chest, or 11,520
So Tyler's chest is 24 by 30 by 16 inches, and is 11,520 inches^3
Juliet's chest will be 40 by ? by 24 inches, and will be 11,520 inches^2.
We have to find the width of Juliet's chest. To do that, we have to divide the length times height of Juliet's chest by The volume of her chest, or
11,520/(40*24) = 11,520/960 = 12
Her chest is 12 inches wide
What type of Distribution do these models represent (select all that supply)?
Answer:
Symmetric, uniform, skewed
Step-by-step e
The temperature in Wisconsin is -4 degrees Fahrenheit on Friday. Use the expression 5 (F-32) over 9 to find this temperature in degrees Celsius. Then explain its meaning.
Answer:
5(-4 - 32)/9 = -20˚C
Answer:
5(-4 - 32)/9 = -20˚C
Step-by-step explanation:
PLS HELP Find the value of x in the triangle shown below.
Answer:
the answer is 20
Step-by-step explanation:
use the pythagorean theorem
1] 12 x 12 = 144
2] 16 x 16 = 256
3] 144 +256= 400
4] find square root of 400 which is equal to 20
Figure D is a translation of Figure A. Describe the translation from Figure A to Figure D.
Figure A is translated by 3 units along the x-axis toward the left and 1 unit along the y-axis upward.
What is a transformation of a point?A spatial transformation is each mapping of feature space to itself and it maintains some spatial correlation between figures.
Figure D is a translation of Figure A.
Describe the translation from Figure A to Figure D will be
Figure A is translated by 3 units along the x-axis toward the left and 1 unit along the y-axis upward.
More about the transformation of a point link is given below.
https://brainly.com/question/27224339
#SPJ2
I just need the answers to these and I'll be done with my homework.Please help
Answer:
Step-by-step explanation:
Answer:
[tex]3) x = 12, \ y = \frac{x}{3} = \frac{12}{3} = 4[/tex]
[tex]4) x = 2 , \ y = 5x + 9 = ( 5 \times 2 ) + 9 = 10 + 9 = 19[/tex]
[tex]5. a ) Profit = Cost \ Price - Selling\ Price[/tex]
Profit = P, Cost C,
[tex]P = 0.50C - 75[/tex]
[tex]b) Break \ even\ means \ zero \ profit[/tex]
[tex]P = 0.50C - 75 \\\\0 = 0.50C - 75\\\\0.50C = 75\\\\C = \frac{75}{0.50} = 150[/tex]
Number of cups to break even is 150 cups.
Graph the points (0, -2), (4, 0) and (2, 0). If you want to create a parallelogram, which of the following points should be used for the fourth point?
A. (2, -2)
B. (-1, 0)
C. (-4, 0)
D. (4, 4)
The ratio of boots to shoes is 1 to 3. If there are 6 boots, how many shoes are there?
Answer:
2 shoes helpful answer to your question
Answer:
shoes =18
Step-by-step explanation:
let shoes be x
ratio of bots to shoes =1:3
boots/shoes =boots/shoes
1/3 = 6/x
do cross multiplication
6*3=x
18=x
pls help me i have to have assignments by 11:00pm so pls help me
Answer: The answer to Number 4 is 1!
Step-by-step explanation:
First you solve for the numbers in parentheses. 16 - 7 is 9, and 2 x 4 is 8. Then you solve for the remaining numbers. So 9 - 8 is indeed 1.
Hope this helps! :)
Answer:
The answer to number 2 is 1
Step-by-step explanation:
[tex] \frac{1}{5} \times 5 = \frac{1}{5} \times \frac{5}{1} \\ \\ \frac{5 \times 1}{5 \times 1 } = \frac{5}{5} = \frac{1}{1} = 1[/tex]
find the ratio if it is given that ...
1) 6a-3b=5b
2) a+b=3a
3) 2a-3b/5 = a+b/2
which angles are supplementary to each other ?
Answer:6 and 7
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
HELP PLEASE!!!!!!????
Answer:
Step-by-step explanation:
c. 235.00 intrest rate
When a spaceship full of scientists landed on Planet Q, they found that 17/40 of the 160 aliens had 3 eyes. How many aliens had 3 eyes?
Answer:
68 aliens
Step-by-step explanation:
Take the fraction of aliens that had 3 eyes and multiply by the number of aliens
17 / 40 * 160 =
17 * 160/40
17 *4
68
A scientist is working with a type of bacteria that duplicates itself every minute. He used the function f(b)=1 and the function g(b)=2^b to create the function h(b)=1×2^b, where b is the time in minutes.
After 5 minutes, how much bacteria should there be?
Answer:
3
Step-by-step explanation:
due at 11 am today
pls solve both and explain in detail
8)Zack has 75 dollars in her bank account. After going
to the hair salon, he is left with 53 dollars. What
was the amount he spent at the salon?
9)Steph paid the dues for his driving offenses recently
and was made to pay a fine of 165 dollars for 5 months
overdue. How much did he pay as a fine per month?
Answer:
8) $22
9) $33
Step-by-step explanation:
8) $75 to start, has 53 left. The difference of those is what he spent. 75 - 53 = $22
9) 165 divided equally in 5 months:
165 / 5 = 33
giving brainlist for correct
Answer:
B.
Step-by-step explanation:
6 + 18 = 24
7 + 18 = 25
8 + 18 = 26
9 + 18 = 27
10+18 = 28
All greater than or equal to 24.
HELP ASAP 30 POINTS WORTH !!!!! OωO
The slope of a line is 2. The y-intercept of the line is –6. Which statements accurately describe how to graph the function? Locate the ordered pair (0, –6). From that point on the graph, move up 2, right 1 to locate the next ordered pair on the line. Draw a line through the two points. Locate the ordered pair (0, –6). From that point on the graph, move up 2, left 1 to locate the next ordered pair on the line. Draw a line through the two points. Locate the ordered pair (–6, 0). From that point on the graph, move up 2, right 1 to locate the next ordered pair on the line. Draw a line through the two points. Locate the ordered pair (–6, 0). From that point on the graph, move up 2, left 1 to locate the next ordered pair on the line. Draw a line through the two points.
Answer:
A because (0,-6) is the y-intercept so you start at the point you know. Then because slope is a rise over run fraction the slope can also be written as 2/1 which is rise 2 over 1.
Step-by-step explanation:
w
Answer:
A, cuz (0,-6) is the y-intercept. You start at the point that is familiar to u. Then cuz slope = rise over run, simplify the slope which is 2/1.
HELP PLEASE FOR 100 POINTS!! For each parabola, a) Write the equation of the function; b) Give the minimum or maximum value of the function; c) Find the domain and range.
Answer:
1 problem is b 2 problem is c
Step-by-step explanation:
Find the value of x please.
Answer:
83
Step-by-step explanation:
its a guess bc its a right triangle and right triangle is 90 degrees minus 7 is 83
Answer:
I think it is 93 degrees
Step-by-step explanation:
A triangle has a full angle of 180 degrees
47+47 = 94
180-94=86
x-7=86
x = 93
how many more numbers to get from 675 to 800
Answer:
Subtract 675 by 800, and you will get 125
To get from 675 to 800, you will add 125 to 675
Answer:
125
Step-by-step explanation:
675+1+1+1+1+1+1+1
lol just kidding
If you subtract 800-675, you would get 125.
Also if you added 125 to 675, you would get 800.
So, there you have it :)
PLS HELP!!
2. At a fair, each person can spin two wheels of chance. The first wheel has the numbers 1, 2, and 3. The second wheel has the letters A and B. (d) List all the possible outcomes of the compound event. (e) If you spin both wheels, what is the probability that you get either a 1 or an A? Explain.