Answers
Answer:
Answer A is the correct option.
Related Questions
A rocket is launched from a tower. The height of the rocket, why in feet is related to the time after launch, X and seconds, by the given equation. Using this equation find out the time at which the rocket will reach its max, to the nearest 100th of a second y=-16x + 152x + 74
Answers
Given:
Consider the height of the rocket, in feet after x seconds of launch is
[tex]y=-16x^2+152x+74[/tex]
To find:
The time at which the rocket will reach its max, to the nearest 100th of a second.
Solution:
We have,
[tex]y=-16x^2+152x+74[/tex]
It is a quadratic polynomial with negative leading coefficient. So, it is a downward parabola.
Vertex of a downward parabola is the point of maxima.
To find the time at which the rocket will reach its max, we need to find the x-coordinate of the vertex.
If a quadratic function is [tex]f(x)=ax^2+bx+c[/tex], then the vertex is
[tex]Vertex=\left(-\dfrac{b}{2a},f\left(-\dfrac{b}{2a}\right)\right)[/tex]
Here, [tex]a=-16,b=152,c=74[/tex].
So,
[tex]-\dfrac{b}{2a}=-\dfrac{152}{2(-16)}[/tex]
[tex]-\dfrac{b}{2a}=-\dfrac{152}{-32}[/tex]
[tex]-\dfrac{b}{2a}=4.75[/tex]
So, x-coordinate of the vertex is 4.75.
Therefore, the rocket will reach its max at 4.75 second.
Solve for w.
6+(w−10)=5
Answers
Answer:
w=9
Step-by-step explanation:
first you wanna add 6 and -10 which gives you -4, after that you bring -4 over to 5 and change it to positive and it becomes 9, which gives you w=9
The 10 students on the swim team want to raise $185.50 to buy uniforms. They have already raised $60.00. If each student raises the same amount, how much more money must each student raise?
Answers
Answer:
785.50
Step-by-step explanation:
10x60=600+185.50+785.50 hope i helped
Answer:It will be $125.50
Step-by-step explanation:Ok like you side each of the 10 students have $60 but they trying to get to 185,50 so you have to dived 60 to 185.50 cents.
5)Find the radius of the circle below!
4 cm
Answers
Answer:
2cm
Step-by-step explanation:
to get the radius u divide the diameter by 2
hope this is correct and helps
Step-by-step explanation:
Hey there!
Answer is 2cm.
Reason:
Diameter is given = 4 cm
Radius = d/2
= 4/2 = 2cm.
Hope it helps..
A teacher can spend as much as $125.00 to take students to a movie.
A movie theater charges a $10.00 group fee and $5.50 per ticket.
What is x in the problem?
Answers
Answer:
x is the per ticket, for example it would be 5.50x + 10.00 = 125.00
Step-by-step explanation:
Choose the answer that best represents the situation described below.
Karen is driving across the country. The longer she drives after filling her gas
tank, the more gas she will have to put in next time she fills up.
A. The amount of time that Karen has driven since she last put gas in
her car is a function of how much gas her car needs.
B. The amount of gas Karen has to put in her tank is a function of
how large her gas tank is.
C. The amount of gas Karen has to put in her tank is a function of
how long she has driven since she last put gas in.
Answers
Which of these is defined as a part of a line that is bounded by two end points?
ray
angle
point
line segment
Answers
Answer: Line Segment.
Step-by-step explanation:
In geometry, a line segment is a part of a line that is bounded by two distinct end points, and contains every point on the line between its endpoints. A closed line segment includes both endpoints, while an open line segment excludes both endpoints; a half-open line segment includes exactly one of the endpoints. In geometry, a line segment is often denoted using a line above the symbols for the two endpoints (such as ĀB).
what is the awnser to r(−2)= ?
Answers
Answer:
r=2 i think
Step-by-step explanation:
Answer:
Hi there!
If there was supposed to be an attached problem to fill -2 into, PLEASE ATTACH IT!
If not, x= -2 in r(-2)
(3x^2 - 2x + 1) + (1x^2) =
Answers
Answer:
4x^2 - 2x + 1
Step-by-step explanation:
Since you are adding, you can drop the parentheses because they are unnecessary. Combine like terms.
(3x^2 - 2x + 1) + (1x^2) =
= 3x^2 - 2x + 1 + 1x^2
= 4x^2 - 2x + 1
ANY HELP IS GREATLY APPRECIATED What is the sign of the product (−4)(6)(9)(3)?
A. Positive, because the products (−4)(6) and (9)(3) are negative and the product of two negative numbers is positive
B. Positive, because the products (−4)(6) and (9)(3) are positive and the product of two positive numbers is positive
C. Negative, because the product (−4)(6) is negative and the product (9)(3) is positive, and the product of a negative number and a positive number is negative
D. Negative, because the product (−4)(6) is negative and the product (9)(3) is negative, and the product of two negative numbers is a negative number
Answers
Answer:
c
Step-by-step explanation:
there's only one negative in the whole equation making it all negative. if there were two negatives it would become a positive
Im a little stuck. I would appreciate the help..
Answers
Answer:
3+1/2n
Step-by-step explanation:
3 more of technically means +3 and 1/2 of n would be 1/2n so just put them together
The model represents an equation. What value of x makes the equation true?
Answers
Answer:
i'm pretty sure the answer is x=3
Step-by-step explanation:
Jordan gave out a survey to some students in his school about their favorite color. Students could choose between purple and blue. 96 of those surveyed said their favorite color was purple. 76% of the students surveyed said their favorite color was blue. How many students were surveyed in total?
Answers
Answer:
169
Step-by-step explanation:
i hope this helps
Answer:
398
Step-by-step explanation:
100%-76%= 24% which should be the 96 percent that chose purple
94÷24%= 3.91(4 because it's rounded) students per percentage
4×76%=304 that chose blue if rounded
94+304=398 total
Find x so that line q is parallel to line r.
(117 - 28)
(7-8)
Answers
please help with this
Answers
Enter one-half as a fraction. ||
Answers
Answer:
1/2
Step-by-step explanation:
Somebody please helppp me!
Answers
Answer:
angle 2 is 94 degrees and angle 3 is 94 degrees
Step-by-step explanation:
4x-26=3x+4
4x=3x+30
x=30
they are vertical angles meaning they are equal
I’ll make this worth 15 points
Answers
Answer:
$7(w) + $42=$133
Step-by-step explanation:
w=13
7×13=91 +42=133
. Diego pays $4.50 for 3 pounds of bananas and 2 pounds of oranges.
one pound of oranges cost $0.75 more than one pound of bananas
let b represent the price per pound of bananas.
Which equation represents the situation, and what is the price per pound of each fruit?
Answers
Answer:$14.75 for bananas and oranges
Step-by-step explanation:
You have to Add to get your answer.I'll show you how I got $14.75:
4.50+4.50=$9
9+2=$11
11+0.75=$11.75
11.75+3=14.75
Your answer is:$14.75
hope this was helpful:)
You put $800 in a savings account. The account earns 6%
simple interest. How much interest will be earned after 4
years?
Answers
Answer:
992
Step-by-step explanation:
1. 800/1 x 6/100 = 48 x 4 = 192 +800 = 992
2. 6 x 4 =24
800/1 x 24/100 = 192 + 800 = 992
Anyone know how to do this?
Answers
Answer:
20°
Step-by-step explanation:
Step 1:
3x - 10 = x + 30 Alternate Interior ∠'s
Step 2:
2x - 10 = 30 Subtract x on both sides
Step 3:
2x = 40 Add 10 on both sides
Step 4:
x = 40 ÷ 2 Divide
Answer:
x = 20°
Hope This Helps :)
Subtracting fractions with unlike denominators 9/8-4/10
Answers
Answer:
29/40
Step-by-step explanation:
Answer:
29/40
Step-by-step explanation:
Hope it helps
6. A group of students was given the following to simplify: 3x+7. Brian believes that this expression simplifies to 10x because you add the 3 and 7 together and bring the x. Lindanes believes that this expression simplifies to 10 because you add the 3 and 7 and drop the x. Marcos believes that this expression simplifies to 3x+7 because you cannot combine the two terms. Jasmine believes that this expression simplifies to 21x because you multiply 3 and 7 and bring the x. Which student is correct?
Answers
24 __ 3/4 = 18 is it Multiplication Division Addition Subtraction
Answers
Answer:
Multiplication
Step-by-step explanation:
Calculator
Multiplication is the required operation.
What is the BODMAS rule?According to the BODMAS rule, the brackets have to be solved first followed by powers or roots (i.e. of), then Division, Multiplication, Addition, and at the end Subtraction. Solving any expression is considered correct only if the BODMAS rule or the PEMDAS rule is followed to solve it.
Given here: The equation given is 24_ 3/4=18
Let the operation be multiplication then we get
24×3/4=6×3
=18
Similarly, we can verify that no other operation yields the answer an s18 and thus the operation performed must be multiplication.
Hence, Multiplication is the required operation.
Learn more about the BODMAS rule here:
https://brainly.com/question/29795897
#SPJ2
How much is it | -7.9|?
Plllzzzzzz help mark you brainliest
Answers
Answer:
7.9
Step-by-step explanation:
When a number (or multiple numbers) is placed between two lines like this | |, that is the absolute value grouping symbol. Absolute value is the distance between the grouped number(s) and another defined number. In this case there are no other given numbers so 0 is assumed.
Now, say a friend is driving to your house and you call them to ask how far away they are from arriving (in distance), and they say "Around negative 5 miles away." That doesn't make sense! Distance can never be negative, and because absolute value is the distance between a number and another, a number within that grouping symbol can never be negative if there is a solution. Therefore, |-7.9| would be 7.9, because -7.9 is that exact amount away from 0.
What two integers gives a product of -10?
Answers
Answer:
Here's how to solve it.
Step-by-step explanation:
Ok so, a negative integer and positive ALWAYS equals a negative.
Negative and negative equals positive because it cancels out.
Positive and Positive equals positive.
So to answer your question What negative number times by a positive equals -10?
Well 5 * 2 = 10 Right?
So -5 * 2 = -10
Hope this Helps.
MULTIPLY MIXED NUMBERS
Answers
The table shows the number of tennis balls that fit into a given number of cans
Answers
Answer:
wheres the table?
i cant see the table
Plsss help! I don't understand
Answers
Answer:
x=18
Step-by-step explanation:
HELP HAVING BAD DAY
Jasmine drives every morning to her office that is 12 miles from her home.
b
If Jasmine's average driving speed is s mph, how many minutes does it take her to reach the office?
Answers
Step-by-step explanation:
Hey there!
Speed (s) = m/hr
Distance = 12 miles
Time = ?
We have,
[tex]t = \frac{d}{s} [/tex]
[tex]t = \frac{12}{1} [/tex]
Therefore, time = 12 hr.
[Note: The speed is 1miles/hr. So, we got time same as the distance]
Hope it helps...
Answer:
12/s
Step-by-step explanation: