Answer:
Step-by-step explanation
The first step, u have add 10.1 + 2.7 = 12.8 .
Then, u add 12.8 - 12.6 = 00.2.
After that u add 10.1 + 2.7 + 12.6 + 22.9 = 48.3.
If u want u can also add 10.1 + 2.7 + 12.6 to show the total without the North Kailbab Trail added.
Hope this helps
A firework is fired into the air from the top of a barn. Tis hight (h) above the ground in yards after (t) seconds is given by the function h(t)= -5t^2 + 10t + 20
1. At what time does the firework reach its maximum hight?
2. What is the maximum hight of the firework?
3. At what time will the firework fall to the ground?
The given function for the height of the firework is a quadratic function
1. Time at which the firework reaches the maximum height is 1 seconds
2. The maximum height of the firework, is 25 yards
3. Time after which the firework will fall to the ground is (1 + √5) seconds
Reason:
The given function that represents the height of the fireworks with time is
presented as follows;
h(t) = -5·t² + 10·t + 20
1. The time at which the firework reaches its maximum height is given by
the maximum point of the given function as follows;
The x-value of the maximum point of a quadratic function is [tex]x = \dfrac{b}{2 \cdot a}[/tex]
Where;
a, and b, are the coefficient of x² and x, in the general form of a quadratic function f(x) = a·x² + b·x + c
By comparison, we have;
[tex]t = -\dfrac{10}{2 \times (-5)} = 1[/tex]
The time at which the firework reaches the maximum height is t = 1 seconds2. The maximum height is given by plugging in the value of t, at the maximum point into the given function as follows;
h(1) = -5×1² + 10×1 + 20 = 25
The maximum height of the firework, f(1) = 25 yards3 The time at which the firework will fall to the ground, is given by the zero of the function as follows;
When the firework falls to the ground, h(t) = 0 = -5·t² + 10·t + 20
Dividing both sides by (-5) gives;
[tex]\dfrac{0}{-5} = \dfrac{ -5 \cdot t^2 + 10 \cdot t + 20}{-5} = t^2 - 2 \cdot t - 4[/tex]
t² - 2·t - 4 = 0
By the quadratic formula [tex]x = \dfrac{-b\pm \sqrt{b^{2}-4\cdot a\cdot c}}{2\cdot a}[/tex], we get;
[tex]t = \dfrac{2\pm \sqrt{(-2)^{2}-4\times 1\times (-4)}}{2\times 1} = \dfrac{2\pm \sqrt{20}}{2\times 1} = \dfrac{2\pm 2 \times \sqrt{5}}{2\times 1} = 1 \pm \sqrt{5}[/tex]
Therefore;
The time after which the firework will fall to the ground, t = 1 + √5 secondsLearn more here:
https://brainly.com/question/20628403
Write a system of equations to describe the situation below, solve using substitution, and fill
in the blanks.
Tamir and his little sister are saving up money to buy a joint birthday present for their
mother. Tamir already has $11 saved and plans to save $15 per week from his allowance. His
sister has $19 saved so far and will save $7 per week from hers. The two siblings will soon
have saved the same amount towards their mother's gift. How much will each one have
saved? How long will that take?
Tamir and his sister will each have saved $
in
weeks.
Answer:
X = 1 week
Each will have $ 26 in 1 week
Step-by-step explanation:
Tamar: y = 15x + 11
Sister: y = 7x + 19
15x + 11 = 7x + 19
15x - 7x = 19 - 11
8x = 8
x = 8/8
15(1) + 11 = 26
the answer is 6. add -3x to 2x which gives you 5x. then add 24 to 6 which gives you 30. the equation is now 30=5x. divide by 5. 30÷5=6. x=6
Answer:
Wrong I think... it would be x=1/5
Step-by-step explanation:
-3x +2x is -1x but the rest seems correct.
In the college class, there were 15 students that came to the review class before the test. This was 30% of the students in class. How many students were in the class, altogether?
Answer:
30 students
Step-by-step explanation:
The 15 students that came were 30% of the class:
30% = 15 students
To find 100%, we can first find 10% by dividing both sides by 3
10% = 3 students
(30% ÷ 3 = 10%, 15 ÷ 3 = 5)
Then, multiply both sides by 10 to get 100%
100% = 30 students
(10% × 10 = 100, 3 × 10 = 30)
no explanation just answer
What’s the answer help someone
Answer:
13×10/5×3= 130/15= 26/3=8.6
Step-by-step explanation:
13 multiplies 10 and 5 multiplies 3 after it gets divided
2(3x-5y)+3(x^(2)-4y) for x=3, y=-5
Answer:
-38
Step-by-step explanation:
this is the answer
brainlist please
Plsss help:p
x+2=x+8
Answer:
no solution
Step-by-step explanation:
x+2=x+8
Subtract x from each side
x+2-x = x+8-x
2 = 8
This is never true so there is no solution
Answer:
x+2=x+8
x+2-2=x+8-2
x=x+6
x-x=x+6-x
0=6
Step-by-step explanation:
5n + 34 = -2 ( 1 - 7n)
this is due by midnight.
NO LINKS PLEASE!
Answer :
n = 4
Step-by-step explanation:
5n + 34 = -2(1-7n)
first distribute
5n + 34 = -2(1) -2(-7n)
5n + 34 = -2+14n
-5n
+2
then get all of n to the same side
36 = 9n
isolate the variable
36/9 = 9n/9
4 = n
Answer:
n=4
Step-by-step explanation:
Hi there!
We are given the following equation:
5n + 34 = -2(1-7n)
And we want to solve it for n
To do that, we want to isolate n (also written as 1n) on on side by itself.
In this equation, on the right side, we have -2(1-7n), which is in the way. We'll need to open it up.
In order to open up the parenthesis, we'll need to do the distributive property, where we will multiply -2 to both 1 and -7n, then add them together.
-2(1-7n)=-2+14n
That's for the right side.
The equation now looks like this:
5n + 34 = -2 + 14n
Remember that we will be trying to isolate n on one side
Subtract 5n from both sides to remove it from the left side:
5n + 34 = -2 + 14n
-5n -5n
__________________
34 = -2 + 9n
Add 2 to both sides to remove it from the right side:
34 = -2 + 9n
+2 +2
______________
36 = 9n
Now, we have numbers on one side and variables on the other, but we're not done yet, since remember; we want just n (or 1n), not 9n. We need to divide both sides by a number that will result in 1n
If we divide a number by itself, then the result is 1
So we should divide both sides by 9
4 = 1n, also written as 4=n , or n=4
Hope this helps!
53x-9 divided by 7.6x
how do u do this aaaa
Answer:
53x−1.18421052/x
Step-by-step explanation:
multiply the given fraction write your answer in your notebook. 3/4 times 1/2
Answer: 3/8
Step-by-step explanation:
3 . 1 = 3 x 1 = 3
4 2 4 x 2 8
11 4
--- x ---
20 14
Answer:
11. 4
_ X _
20. 14
Step-by-step explanation:
Multiply the numerator
11 X 4= 44
Multiply the denominator
20 X 14= 280
Then, division to the lowest term
44 X 280 = 6
hope it's helpful
pa brainlest po
PLS HELP ASAP I WILL GIVE BRAINLIEST
Answer:
1331
Step-by-step explanation:
(w + x + y)^3(-2 + 5 + 8)^3(3+8)^3(11)^311 · 11 · 11121 · 11 1331Therefore, the answer is 1331.
(-2+5+8)^3
(11)^3
1331
Pounds of Apples
Total Cost (8
The table shows a relationship between the number of pounds of apples and
the total cost. Is the relationship proportional?
4
12
24
A No, because the total cost changes from one row to the next.
B No, because some possible numbers of pounds are not listed.
Yes, because the cost is always three times the number of pounds.
D
Yes, because each number of pounds is double the number before it in the table.
Answer:
yes it is
Step-by-step explanation:
please mark brainiest
Mr. Rudman speed walked 2 miles in 10 minutes, what is his speed?
0.2 miles/min
2 miles/min
20 miles/min
40 miles/min
Helppp pleaseee
Answer:
0.2 miles/min
Step-by-step explanation:
Divide 2 by 10:
2/10= 0.2
Hope this helps! :)
PLEASE HELP ME IT WILL MEAN A LOT TO ME
Answer:
Alex spends more time in his homework.
Step-by-step explanation:
To make it easier to compare their homework time on math, convert 2/5 into a percentage: Divide the numerator by the denominator:
Darius: 35%
Alex: 2/5 = 0.40 × 100 = 40%
Seeing both percentages make it easier to determine that Alex spends more time in his homework than Darius.
Answer:
Alex spends more time doing math homework. 2/5 is equal to 4/10 and 4/10 as a decimal is 0.4 which is 40%. 40% is greater than 35% so Alex spends more time than Darius doing math homework.
Hope this helps!
Pls gi brainliest!
an army commander wishing to arrange his soldiers, who were 8289 in number in the form of a square found that there were 8 soldiers left over. how many soldiers were there in each row?
Answer:
The answer to your question is 91
Step-by-step explanation:
8289-8=8281 then square of the number is 91 and 91 is soldiers in each row
Total no of soldiers=8289
number of soldiers left out=8
√8281=91
I hope this helps!
I don’t remember how do to any of them
Answer:
[tex]12x+9[/tex] and [tex]99[/tex]° are supplementary to each other.
Step-by-step explanation:
Supplementary means that two angles added together make 180°.
Looking at the graph, you can see that angles [tex]12x+9[/tex] and [tex]99[/tex]° both combined make 180°, so they are considered supplementary.
Martin is an after-school math tutor. He noticed that 6 people still needed help and only Two-fifths of the tutoring session time was left. Since each person is to be given an equal amount of time, Martin wrote the expression below to find the fraction of the tutoring session each person who still needed help would be allotted.
Two-fifths divided by 6
Answer:
ya
Step-by-step explanation:
For addition, drag tiles onto the board.
To form a group, place one tile on top of another.
What is the product of -3 and 5?
O-15
O-8
O 8
O 15
Board sum: 0
Reset
The value of the expression - 3 x 5 using the multiplication property will be -15. Then the correct option is A.
What is Algebra?Algebra is the study of algebraic expressions, while logic is the manipulation of those concepts.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to answer the problem correctly and precisely.
The numbers are given below.
-3 and 5
Then the product of the numbers -3 and 5 will be given by putting a cross sign between them. Then we have
⇒ -3 x 5
⇒ -15
The value of the expression - 3 x 5 using the multiplication property will be -15. Then the correct option is A.
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ7
I need Helpp pleaseeeeee
WILL MARK BRAINLIEST Determine the length of LP
Answer:
12Step-by-step explanation:
2.5x = 30x = 30 / 2.5x = 12Suppose that Y and Z are points on the number line.
If YZ=4 and Y lies at - 12, where could Z be located?
If there is more than one location, separate them with commas.
Answer:
subtract or add 4 to -12 to find the answer
Answer:
z = - 16 , - 8
Step-by-step explanation:
4 units from - 12 is - 16 or - 8 , since
| - 16 - (- 12) | = | - 16 + 12 | = | - 4 | = 4
| - 8 - (- 12) | = | - 8 + 12 | = | 4 | = 4
Please help me with #1
Answer:
N-K = 6-3 which equals 3.
Step-by-step explanation:
hi! i need help on number 4 and 5 please! this is due tmr
Answer:
In the picture
Step-by-step explanation:
Hey again ! If you have any question feel free to ask !!
Question 4:
Solve for the variable N in [tex]55+8n=4n+107[/tex]
Answer:
[tex]n=13[/tex]
Step-by-step explanation:
1. Subtract [tex]4n+107[/tex] from both sides; [tex]4x-52[/tex]
2. Separate variable [tex]n[/tex] by adding [tex]52[/tex] to both sides; [tex]4n=52[/tex]
3. Simplify equation by dividing by [tex]4[/tex] on both sides; [tex]=13[/tex]
Question 5:
Solve for the variable N in [tex]6-6x=5x-9x-2[/tex]
Answer:
[tex]x=4[/tex]
Step-by-step explanation:
1. Subtract [tex]5x-9x-2[/tex] from both sides; [tex]8-2x[/tex]
2. Separate variable [tex]x[/tex] by adding [tex]2x[/tex] to both sides; [tex]8=2x[/tex]
3. Simplify equation by dividing by [tex]2[/tex] on both sides; [tex]4=x[/tex]
Can someone please help ASAP marking brainliest
Answer:
99 degrees
Step-by-step explanation:
50 people purchase item 5(the item 5 cost $18.94) seven of these customers use a coupon for 15% off. how much money do you make off the sales of item 5?
Answer:
$927.113
Step-by-step explanation:
50-7=43
43×18.94=814.42
100-15=85
100%=18.94
what about 85%
85×18.94=1609.9÷100=16.099
16.099×7=112.693
814.42+112.693= 927.113
Find the measure of the missing angles.
26°
yº
x°
Answer:
y = 90
x = 64
Step-by-step explanation:
y is 90 because of right angle
if add 26 + 90 = 116 -> 180 (angle of straight line) - 116 = 64 which is angle of angle to left of y and therefore x bc opposite angles equal each other
or even if you saw the line that includes x, 26, and y, x is still 64
also, the other angle that is blank should be 26+y (if our calculations are correct) so it would be 116 -> and if we add up everything we should get 360 so, x/64 + 26 + y/90 + blank angle/64 + 116 = 360 -> all correct!
PLS HELP WILL MARK BRAINLIEST, NO FAKE ANSWERS!
Answer:
its B mark me brainliest plz
Leslie drank 51 ounces of water in 6 hours. At this rate, how much water did Leslie drink in one hour?
Answer:
She drank 10.67 oz in one hour.
Step-by-step explanation:
You would multiply the total oz of water drank by the hours.
51 ÷ 6 = 10.6666...
Then you would round it up to 10.67.
Answer:
The correct answer is 8.5 ounces in the matter of one hour
Step-by-step explanation:
To get this answer you will need to use division.
Divide 51 with 651 divided by 6 will be 8.5 as a decimal
Therefore the correct answer is 8.5In which was being drank in the matter of one hour