Answers
Answer:
gradient = 9
Step-by-step explanation:
The gradient of the tangent at x = a is the derivative [tex]\frac{dy}{dx}[/tex]
Differentiate using the power rule on each term
[tex]\frac{d}{dx}[/tex] (a[tex]x^{n}[/tex] ) = na[tex]x^{n-1}[/tex] and [tex]\frac{d}{dx}[/tex] ( constant ) = 0
y = 2x² + 5x - 3
[tex]\frac{dy}{dx}[/tex] = 2.2[tex]x^{2-1}[/tex] + 5[tex]x^{1-1}[/tex] - 0
= 4x + 5
[tex]\frac{dy}{dx}[/tex] ( x = 1 ) = 4(1) + 5 = 4 + 5 = 9 ← gradient of tangent
Related Questions
At which root does the graph of f(x) = (x - 5)3(x + 2)2 touch the x-axis?
-5
-2
2
О
5
Answers
Answer: It should be -2 and 5
Step-by-step explanation:
Help plz will mark Brainly
Answers
Answer:
114
Step-by-step explanation:
19/10 equals x - 23/6
Please help me quickly!!!
Answers
Answer:
7 17/60
Step-by-step explanation:
you do 6x10 witch is 60 then you do 19 x 23 witch is 437 then divide that by 60 and that is 7 and you have 17 leftover
Help & explain answer pls
Answers
Graph y = 3/4x + 2
Im cray-zee for not knowing this lol
Answers
Answer:
*give credit to Desmos
Step-by-step explanation:
I WILL GIVE BRAINIEST Which statement is correct about the product of 9/10 and 7/8
Answers
Answer:
7/10 and 7/8 are both less than 1.
Step-by-step explanation:
The product must be less than either factor because when you multiply a number by less than 1, the number gets smaller.
Find the missing slant height
Answers
Answer:
[tex]\ell=\frac{77}{4}[/tex]
Step-by-step explanation:
Because these two cones are similar, we can set up the following proportion:
[tex]\frac{11}{4}=\frac{\ell}{7}[/tex]
Solving, we get:
[tex]\ell=\frac{7\cdot11}{4},\\\ell=\fbox{$\frac{77}{4}$}[/tex].
i need help with this !!!!
Answers
Explanation: If you try A, B, and C, you’ll find they are all correct, however D seems to be false.
can somone answer this please
Answers
Answer:
4
7
6
9
Step-by-step explanation:
plz brainliestt
PLEASE I WILL MARK BRAINLIEST
JUST TELL ME HOW TO SLOVE IT
Answers
Answer:
x=5
Step-by-step explanation:
So first we want to find x by itself, so we can subtract 4 from both sides:
x=5
That is your simple answer!
Step-by-step explanation:
[tex] \huge{ \sf{x + 4 = 9}}[/tex]
~ Move 4 to right hand side and change it's sign :
⟼ [tex] \huge{ \sf{x = 9 - 4}}[/tex]
~ Subtract 4 from 9
⟼ [tex] \huge{ \sf{x = 5}}[/tex]
[tex] \red{ \boxed{ \boxed{ \tt{Our \: final \: answer : \boxed{ \bold{ \text{5}}}}}}}[/tex]
Hope I helped ! ♡
Have a wonderful day / night ツ
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The number of fish in a lake decreased by 25% between last year and this year.
Last year there were 60 fish in the lake. What is the population this year?
Answers
Answer: This population, the population is 45 fish.
Step-by-step explanation: This problem can be solved by a rule of three.
Last year there were 60 fish in the lake. That was 100, that is, decimal 1.
This year it decreased 25%. So there 100%-25% = 75%, that is decimal 0.75. So
60 fish - 1
x fish - 0.75
This population, the population is 45 fish.
2. Mr. Thompson is on a diet. He currently weighs 260 pounds. He
loses 4 pounds per month.
a. Write a linear model that represents Mr. Thompson's weight after
m months.
b. After how many months will Mr. Thompson reach his goal
weight of 220 pounds?
Answers
a. w = -4m + 260
b. 10 months
Plllllllllllllllllllllllzzzzzzzzzzzz help me out I’m confused 25 points
Answers
Answer:
-4+(-2)=-6
Step-by-step explanation:
So the arrow goes from -4 to -6 so the end answer is -6 and -4-2 is -6
Evan ran for 28 minutes. Seth ran for 'y' minutes. Evan ran twice as long as Seth. How long did Seth run?
A 28 minutes
B 56 minutes
C 14 minutes
D 30 minutes
Answers
Answer:
14 just divide 28 ÷ 2.....
Arianna buys computer games from an online store. Each game she orders costs $25, and shipping for her total order is $10. Arianna wants to spend $110. How many computer games can Arianna buy? Create an equation for the problem here.
Answers
Answer:
She can order 4 computer games.
Step-by-step explanation:
110-10=100
100÷25=4
which of the following numbers is NOT a solution of the equation |x + 5| = x + 5?
-10
5
-5
0
Answers
Answer:
-10 is not a solution to the equation
Step-by-step explanation:
I don't really have an explanation
What is the solution to −9x−6≥−3(x−4) ?
Answers
The answer is
x ≤ -3
help me or dont lol but please help me
Answers
please help its due today 8p+p=
Answers
Technically that would be 9p only because p stand for 1 so 8+1=9.
1. Evaluate
2
for x = 1
2
and y = 3
2. Nick is renting a car while his car is in the shop being repaired. His budget for the rental is at most
$120. If the cost to rent the car is $25 plus $.75 per mile how many mile can he drive it? Write and
solve an inequality
Answers
Answer:
Step-by-step explanation:
g(x)=2x-1
h(x)=x^2-3x
find g(x)+h(x)
Answers
Answer:
[tex](2x - 1) + ({x}^{2} - 3x) \\ = {x}^{2} - 1x - 1 \\ [/tex]
help! will give brainliest
Answers
Answer:
A
Step-by-step explanation:
tanC = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{AB}{BC}[/tex] = [tex]\frac{16}{12}[/tex] = [tex]\frac{4}{3}[/tex] → A
A 2-D shape has a length of 8cm and a width of 3cm. Find the perimeter and the area.
With steps please.
Answers
Answer:
Area formula: l x w
= 8 x 3
24 cm^2
Perimeter formula: Sum of all sides
= 8+8+3+3
= 25 cm
Answer: 24cm
Step-by-step explanation:
8 multiplied by 3
What is the sum of an even number plus an odd number? please explain in detail only please, everyone is saying its always odd, others are saying its always even, shouldn't it be both I mean jesus
Answers
Answer:
The sum of an even number plus an odd number is odd.
Step-by-step explanation:
The sum of an even number and an odd number is odd.
For example:
2+3=5
11+10=21
51+32=83
The end digit of an even number is always 0, 2, 4, 6, or 8
The end digit of an odd number is 1, 3, 5, 7, or 9.
So if we add only the end digit of an even and an odd number we can find no combination that can give end digit 0, 2, 4, 6, or 8(i.e even).
Hence, the sum of an even number plus an odd number is odd.
find the product of the monomial and polynomial xyz*(2x+3y^2-3z^2)
Answers
Answer:
2x^2yz + 3xy^3z - 3xyz^3
Step-by-step explanation:
First you must distribute:
xyz(2x) + xyz(3y^2) + xyz(-3z^2)
Then simplify:
2xyxx + 3xyzy^2 - 3xyz * z^2
And finally simplify each term:
2x^2yz + 3xy^3z - 3xyz^3
what is in math solve the following equation 35x-7y=49
Answers
Answer:
There is no solution for either variable without further information, as there are two variables given, but only one relationship between them.
You could however use them as a description of a line, which gives every possible solution.
35x - 7y = 49
7y = 35x - 49
y = 5x - 7
We now have an expression describing a line with a slope of five, which crosses the y axis at (0, -7) and the x axis at (1.4, 0)
wilbur has sold 100, 42,87, and 66 appliances in the last four months, respectively. How many appliances will he need to sell this month to maintain an average of at least 72 sales per month?
Answers
Answer:
59
Step-by-step explanation:
1) so you start with the mean being 72x5=360
2)100+42+87+66=295
3) 360-295=65
(you get the 5 from the amount of numbers there are) P.S sorry if I'm wrong or this doesn't help
Pls help and show workings
Thank you in advance
Option
A. 7
B. 10
C. 13
D. 22
Answers
Answer:
D
Step-by-step explanation:
rule: sum of two angles in triangle, should always be higher then the other angle: 13+9=22,
it should be bellow 22. it can not be D
f(x)=3x-5 please help :>
Answers
Answer:
x= 5/3?????
Step-by-step explanation:
try using math
way
How can i get an equation that shows the relationship below Plz its for a test for tomorrow X. Y. -2. -6 -1. -3 0. 0 1. 3 2. 6
Answers
Answer:
x = 3y
Step-by-step explanation:
In tabular form, the variables are given as;
x y
-2 -6
-1 -3
0 0
1 3
2 6
To determine relationships between variables, you observe the numbers and note how they change
In the first instance, the number; -2 changed to -6. This means it was multiplied by 3.
To confirm it, we check the next set of numbers, -1 and -3. This means it is correct.
The equation showing the relationship between both variables is given as;
x = 3y
