Please helpppp i just want to know if i sm doing it right

Answers

Answer 1

9514 1404 393

Answer:

b) -9.8t +18

Step-by-step explanation:

b) The instantaneous rate of change is the derivative of the height function. The power rule is separately applied to each term, and the results added.

power rule: d/dx(x^n) = nx^(n-1)

Then the derivative is ...

dh/dt = 2(-4.9t^1) +18(1 ·t^0)

dh/dt = -9.8t +18

If you haven't been introduced to derivatives as such, then you find the instantaneous rate of change by finding the average rate of change over a vanishing interval.

[tex]\dfrac{dh}{dt}=\displaystyle\lim\limits_{h\to 0}{ \dfrac{h(t+h)-h(t)}{h}}\\\\\dfrac{dh}{dt}=\lim\limits_{h\to 0}\dfrac{(-4.9(t+h)^2+18(t+h)+23)-(-4.9t^2+18t+23)}{h}\\\\\dfrac{dh}{dt}=\lim\limits_{h\to 0}\dfrac{-4.9(2th+h^2)+18h}{h}=\lim\limits_{h\to 0}{(-9.8t +18 -4.9h)}\\\\ \boxed{\dfrac{dh}{dt}=-9.8t +18}[/tex]

Related Questions

can someone please help me with this

Answers

Answer:

The answer is about 13.7 for x

Step-by-step explanation:

Hope this helps.

Can someone please help me will give brainlist

Answers

Answer:

yes

Step-by-step explanation:

start by solving for the missing value. all angles of a triangle should add up to 180. Subtract 31 adn 106 from 180 from the left side, you will get 43. Now do the same to the other side. 180 subtracted by 31 and 43 make 106. Thus, making the triangles the same. hope this helps

Find the value of x for brainliest

Answers

Answer:

x=27.5

Step-by-step explanation:

x/4=55/8

Cross multiply:

8x=220

Divide:

8x/8=220/8

x=27.5

How Many Miles please help me.

Answers

10.5 i think if not sorry

Solve for x
Solve for x

Answers

Answer:

23.1

Step-by-step explanation:

14/20*x/33

Cross multiply

14*33=20*x

462=20*x

462/20=x

23.1=x

Hope this helps :)

Answer:

According to the ratio of segments:-

[tex]\frac{20}{14} =\frac{33}{x}[/tex]

[tex]20x=14(33)[/tex]

[tex]20x=462[/tex]

[tex]x=\frac{462}{20}[/tex][tex]=23.1[/tex]------------------------hope it helps...have a great day!!

Having some struggles

Answers

Answer:

I think it's 399

___

500

I hope it's well help you

Answer:

the answer is 149/500 :D hope this will help u

x varies directly with
y. If x = 60 when
y = 75. find x when
y = 32.

Answers

Answer:

x=17

Step-by-step explanation:

Answer:

25.6

Step-by-step explanation:

find constant of variation ('k'):

y = kx

75 = 60k

k = 75/60 or 5/4

32 = 5/4x

cross-multiply:

5x = 128

x = 25.6

I only need 1 b. please no work needed thank you

Answers

Answer:

standard form is x^2-3x-4=0

which is a^2+bx+c=0

so the value of a=1 , b= -3 and c= -4

who ever awnsers first get brainleist

Answers

Answer: 4 servings

Step-by-step explanation: If a serving of juice is 1/8 of the pitcher, we know that a full pitcher is capable of 8 servings, because 8 servings would be 8/8 of the picher, that is, the whole pitcher therefor 8 serivngs: 4 servings

The senior classes at High School A and High School B planned separate
trips to the state fair. The senior class at High School A rented and filled 3
vans and 13 buses with 628 students. High School B rented and filled 9
vans and 2 buses with 182 students. Every van had the same number of
students in it as did the buses. Find the number of students in each van
and in each bus. *
Van: 10, Bus: 46
Van: 15, Bus: 70
Van: 4, Bus: 22
Van: 46, Bus: 10

Answers

Answer: Van: 10, Bus: 46

Step-by-step explanation:

Let the number of students in each van be represented by v.

Let the number of students in each bus be represented by b.

The question given can be formed into an equation as:

3v + 13b = 628 ...... i

9v + 2b = 182 ......... ii

Multply equation i by 9

Multiply equation ii by 3

27v + 117b = 5652 ........ iii

27v + 6b = 546 ....... iv

Subtract iv from iii

111b = 5106

b = 5106/111

b = 46

Bus = 46

Recall that 9v + 2b = 182

9v + 2(46) = 182

9v + 92 = 182

9v = 182 - 92

9v = 90

v = 90/9

v = 10

Van = 10

3.) Find the slope between the 2 points.
х
-2
-1
0
1
2
Y
-3
-1
1
3
5

Answers

Slope: 2

-3-(-1)/-2-(-1) = 2

Slope formula:

m=y2-y1/x2-x1

Write the linear equation in slope-intercept form given the following:
(1, 4); slope=-2

Answers

Answer:

y=-2x+6

Step-by-step explanation:

y-4=-2(x-1)

y=-2x+6

what form is the equation 12y=2x=24

Answers

Answer:

Step-by-step explanation:

Simplifying

12y + 2x = 24

Reorder the terms:

2x + 12y = 24

Solving

2x + 12y = 24

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-12y' to each side of the equation.

2x + 12y + -12y = 24 + -12y

Combine like terms: 12y + -12y = 0

2x + 0 = 24 + -12y

2x = 24 + -12y

Divide each side by '2'.

x = 12 + -6y

Simplifying

x = 12 + -6y

The measure of angle 1 is 130°.
2 lines intersect to form 4 angles. From top left, clockwise, the angles are 1, 4, 3, 2.
Which other angle must also measure 130°?

Answers

Answer:

The angle opposite angle 1

Step-by-step explanation:

Opposite angles have the same degree when two lines intersect because they are vertical angles.

Answer:

Step-by-step explanation:

Describe the differences in the graphs of linear functions vs. exponential functions.

A. Linear functions have a constant slope, while exponential functions start flat and get steeper.

B. Linear functions cross the y-axis above exponential functions.

C. Linear functions slope down, while exponential functions slope up.

D. There is no
differhoice.

I’ll give brainiest

Answers

Answer:

It's A.

(Just finished the quiz) <3

The differences in the graphs of linear functions vs. exponential functions

is, A. Linear functions have a constant slope, while exponential functions start flat and get steeper.

What is a linear equation?

An equation of degree one is known as a linear equation.

A linear equation of two variables can be represented by ax + by = c.

A function is an exponential function when the exponent is the variable.

The difference between a linear function and an exponential function is,

while exponential functions begin flat and gradually steepen, linear functions have a constant slope.

learn more about exponential functions here :

https://brainly.com/question/12260956

#SPJ2

what is the distance between 0,4 and -1,-5

Answers

Answer:

y = −x + 4

Step-by-step explanation:

Are the triangles congruent? If so, name the postulate or theorem that
justifies your statement.
Given: AE || BD, AE =BD,
LED
Conclusion: AEB – ABDC

Answers

Answer:

ASA

Step-by-step explanation:

another possible pair is ∠A and ∠B

so it makes it ASA

7x + 2y = 24
8x + 2y = 30

Answers

Answer:

x=6

6x7

42+ = 24/2

12-42

y=-30

Step-by-step explanation:

PLEASEEEEE HELPPP ILL GIVE 30 POINTS PLSSS HELP

Answers

answer 4

4multiplyed by 4 is 16

Graph the equation y= 5x - 4

Answers

Answer:

the y intercept will be -4 and the slope would be 5

How to change a decimal into a fraction? Specific question: change 1.25 to an exact percent?

Answers

Answer:

125%

Step-by-step explanation:

1.25 x 100% = 125%

what is 9 1/6 - 2 3/4?

Answers

Answer:

6 5/16

Step-by-step explanation:

Hope this helped :)

Question 2 (1 point)
Use the vertical line test to determine whether the relation is a function.
{(3,0), (2,-1). (-1,4). (1,-2)
}

Answers

Answer:

The relation is a function.

Please help !!! I’m stuck

Answers

Answer:

2/3 ≈ 0.6667

Step-by-step explanation:

apply soh cah toa

sine=opposite/hypo

sine=4/6

sine=2/3

Determine the sine, cosine, and tangent of angle THETA. Check tje appropriate solution for each.

Answers

Step-by-step explanation:

c²=a²+b²

a²=c²-b²

a²= 15²-9²=225-81=144

a=√144=12

sinΩ=a/c=12/15=4/5

cosΩ=b/c=9/15=3/5

tanΩ=a/b=12/9=4/3

Solve for x: 16^2x + 1 = 128

38

83

4

43

Answers

Answer:

[tex]16^{2x}[/tex]+1=128

x=4

Which of the following best describes the equation below?
y = 8x + 9
A.
both linear and nonlinear
B.
neither linear nor nonlinear
O
C.
linear
D.
nonlinear

Answers

Answer:

Step-by-step explanation:

Use distributive property to rewrite each algebraic expression: 8(s + 5)

Answers

Answer:

8s + 40

Step-by-step explanation:

8*s = 8s

8*s = 40

8s + 40

Answer: The correct answer is 8s+40

Step-by-step explanation: If it's correct can i get brainliest..... hopes this helps.

Can someone help me with a full math assignment about slope rate of change and stuff? i will give them brainliest answer too

Answers

Answer:

yes of course .

I will help you .

The temperature was -5 degrees and then fell 8 degrees. What is the temperature now?

Answers

Answer:

-13 degrees tell me if it's right

Answer:

-13 is the answer

Step-by-step explanation:

because -5-8= -13

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