Answer:
Step-by-step explanation:
-6x+5=1
-5 -5
_____
-6x=-4
÷-6 ÷-6
_________-
x=4/6
Hope this helps :3
Answer:
i.) 2/3
Step-by-step explanation:
-6x+5=1
move constant to the right and change its sign.
= -6x = 1-5
calculate
= -6x = -4
divide both sides of the equation by -6
= -6x/6 = -4/-6
=2/3.
I was able to do only the first one.
But still reward me by giving me the brainliest please.
David kicks a ball off the ground. After t seconds, it’s height, h (in feet), is given by the formula h=-16t^2+80t. How many seconds does the ball reach its maximum height? What is the maximum height reached by the ball?
Answer:
The ball reaches its maximum height at 2.5 seconds
The maximum height is 100 feet
Step-by-step explanation:
Maximum Value of Functions
We use the derivative of a function to find its maximum or minimum value over a given interval.
Given a function y=f(x), the first derivative criterion establishes if x=a is such that:
f'(a)=0, and f''(a) < 0 then x=a is a maximum of f.
The height h in feet of a ball after t seconds is:
[tex]h(t)=-16t^2+80t[/tex]
Find the first derivative:
[tex]h'(t)=-32t+80[/tex]
Equate to 0:
[tex]-32t+80=0[/tex]
Subtract 80:
[tex]-32t=-80[/tex]
Divide by -32:
[tex]t = -80 / (-32) = 2.5[/tex]
t=2.5 seconds
Find the second derivative:
h''(t)=-32
Since h''(t) is always negative, then
The ball reaches its maximum height at 2.5 seconds
To find the value of the maximum height, substitute t=2.5 into the function:
[tex]h(2.5)=-16(2.5)^2+80*2.5=-100+200 = 100[/tex]
The maximum height is 100 feet
-3-2(5-9)
What is the answer
5 would be the answer i believe
What can you conclude about the line represented in the table? Select all that apply and have a good day!
Answer: B, C, and F
Step-by-step explanation:
Consider this equation: -3x - 5 + 2x = 6
Which is an equivalent equation after combining like terms?
A. -8 + 2x = 6
В. -3х - 3= 6
C. -3x - 5 = 4
D. -X - 5 = 6
Which is the simplified form of the expression (6 Superscript negative 2 Baseline times 6 Superscript 5 Baseline) Superscript negative 3?
-3
Step-by-step explanation:
(6-2* 6+5)-2
Answer:
1/6^9
Step-by-step explanation:
Is this congruent by SSS, SAS, AAS, ASA?
Answer:
sss
Step-by-step explanation:
Answer:
Then amswer is SSS.
Step-by-step explanation:
Hope rhis helps
hey guys i need help with this im on a timed test so pls hury whats 1+1.
Answer:
one plus one equals two
Step-by-step explanation:
Help please
Mejdhalsbdbjdishdneknmskenai
Answer:
i would say its d. 80
Step-by-step explanation:
cause 24/3 is 8
so 10 x 8 is 80
Science, technology, engineering and mathematics or STEM education was an initiative developed by the________________.
A. National Science Foundation
B.National Scholar Foundation
C. National Schools Foundation
D. National Secondary Foundation
Answer:
A
Step-by-step explanation:
look it up on google
Answer:
d
Step-by-step explanation:
please help this due today by 3:30
Answer:
10 Smackeroos
Step-by-step explanation:
Please help
Match the picture to the reason that would prove the triangles congruent.
Options:
NONE
ASA
SSS
SAS
AAS
HL
PLEASE HELPPP!!! If possible how would you prove the given triangles congruent??
how many comments dose the cat video get and how many dose the dog get
Answer: 8 cat videos 7 dog videos
No
Step-by-step explanation:
Which graph represents 2x − 5y ≥ − 20
Answer:
Go to desmos and it will answer literally all of your graphing questions. Just type in desmos graphing calculator.
Step-by-step explanation:
It also detects if you are right or wrong
Answer:
50
Step-by-step explanation:
all your doing is dividing 100 by 20 and u get 50
Answer: 15. A. Proportional 16. B. 50 mph
Step-by-step explanation: The price and the number of apples are proportional based on the info you have given us. And B. 50 is correct because 100 miles in 2 hours is 100/2 which equals 50/1 so the unit rate would be B. 50 mph.
There are marbles in a bag. Three of the marbles are green, 2 are red, 4 are yellow, 6 are blue, and 1 is white. What is the ratio of yellow marbles to the total number of marbles in the bag?
Group of answer choices
Answer:
4/13
Step-by-step explanation:
Total number of marbles = 2+4+6+1=13
number of yellow = 4
yellow marble/total Number of marbles =4/13
Follow the order of operations.
(4-1 + 8 ÷ 8) muliplied by 5
Answer:
20
Step-by-step explanation:
(4-1 + 8 ÷ 8 )= 4
4 x 5 = 20
Write the statement below as a math expression
twice the difference of a number and eight
A.
2n+8
B.
2n-8
C.
2(n+8)
D.
2(n-8)
Help possssssssssssssssss
Answer:
B
Step-by-step explanation:
4^(-3-1)5^(4-2) = 4^(-4)5^2 = 5^2/4^4
Answer: B
please help me fast
I give you 100 point
Answer:
a. 372
b. 708
c. 451
d. 805
e. 965
f. 620
Step-by-step explanation:
The density of a certain material is such that it weighs 4 kilograms per cup of volume. Express this density in pounds per liter. Round your answer to the nearest tenth.
Pls help
Answer: 37.2 pounds per liter
Step-by-step explanation:
The density of the material of 4 kg/cup on converting it into pounds per litre will be 37.2 lbs/lt.
Given that, the density of a certain material is such that it weighs 4 kilograms per cup of volume.
What are derived units?Defining a derived unit is the process of deriving a measurement unit from one or more of the seven base units of the international system of units (SI). There are two types of derived units: dimensionless and the product of base units.
Here it is given that, the density d of a certain material is 4 kilograms per cup of volume and it is finding the density of material in pounds per litre.
Now it is known that,
1 kg equals 2.2 pounds
Now, 1 cup of volume equals 0.237 lt.
Converting the density d of material in pounds per litre and rounding it to the nearest tenth:
d=4 kg/cup
=4×2.2/0.237
=37.13≈37.1 pounds/lt
Therefore, the density of the material of 4 kg/cup on converting it into pounds per litre will be 37.2 lbs/lt.
To learn more about the density visit:
https://brainly.com/question/15164682.
#SPJ2
Which graph represents y as a
function of x?
PLEASE HELP!!!!
BRAINLIEST??
Answer:
B
Step-by-step explanation:
Whats is the answer to 3-(-7). I cant seem to figure it out
Which number has the same absolute value as -2?
0
-1/2
1/2
2
Answer:
2
Step-by-step explanation:
The absolute value of a positive is that same number
For example the absolute value of 4 is 4
The absolute value of a negative is that same number without the negative sign.
For example, the absolute value of -4 is 4
PLEASE HELP ME WITH THIS HOME WORK
if i keep a low grade i could fail this class i just NEED to pass this i have to watch my siblings in and after class and maintain good grades just someone PLEASE HELP ME
I totally understand that was exactly how my life was what are the homework problems?
What is the congruence statement?
Answer:
triangle pjl is congruent to it's by side side side theorem
Malcolm and Theo's families are both traveling to the same vacation resort.
The equation d = 65t models the distance, d, that Malcolm's family travels after t hours.
The graph below shows the relationship between the distance and the amount of time that Theo's family traveled.
Answer:
Malcom's family travel 15 miles per hour faster than Theo's
Step-by-step explanation:
See attachment for complete question
Given
Malcom's Family:
[tex]d = 65t[/tex]
To determine the equation of Theo's family, we refer to the attached graph.
From the graph:
[tex]t = 1; d = 50[/tex]
[tex]t = 2; d = 100[/tex]
First, we determine the slope, m:
[tex]m = \frac{d_2 - d_1}{t_2 - t_1}[/tex]
[tex]m = \frac{100 - 50}{2- 1}[/tex]
[tex]m = \frac{50}{1}[/tex]
[tex]m = 50[/tex]
Next, we determine equation for Theo's family using:
[tex]d - d_1 = m(t - t_1)[/tex]
[tex]d - 50 =50(t - 1)[/tex]
[tex]d - 50 =50t - 50[/tex]
Add 50 to both sides
[tex]d - 50 +50=50t - 50 + 50[/tex]
[tex]d =50t[/tex]
So, we have the following:
[tex]d = 65t[/tex] --- For Malcom's family
This implies that Malcom's family travel at 65 miles per hour
[tex]d =50t[/tex] --- For Theo's family
This implies that Theo's family travel at 50 miles per hour
The difference between this rates is:
[tex]Rate = 65t - 50t[/tex]
[tex]Rate = 15t[/tex]
Which implies that Malcom's family travel 15 miles per hour faster than Theo's
Find the value of x in the triangle shown below
X=
58°
6
6
5.8
X
Answer:
61
Step-by-step explanation:
4/15 rounded to the nearest thousandth
I NEED HELP ASAP T-T
Any help is apprenticed!
Answer:
I'm not 100% bit I think it's 4- x/3
