1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mash [69]
2 years ago
10

Can someone help me please?!?

Mathematics
1 answer:
Damm [24]2 years ago
7 0

Answer:

k=10

Step-by-step explanation:

g(x)=2x^2+ kx+18

when x=-2

g(-2)=2 (-2)^2 -2k +18

Since when x is -2, y =6

6=2 (-2)^2 -2k +18

6=18+8-2k

2k=26-6

2k=20

k=10

You might be interested in
Joey and Nolan are each solving the equation 13x - 42 = 18 - 7x.
poizon [28]

Answer:

First step=13x+7x=18+42

Step-by-step explanation:

13x-42=18-7x

First step

It is to collect like terms of the equation

13x+7x=18+42

20x=60

x=60/20

x=3

3 0
3 years ago
ANSWER ASAP!!!!!!!!!!
kogti [31]

Answer:

1.1221500000*10^-10

Step-by-step explanation:

7.4810^3= 7,481

1.5×10^6= 1500000

7,481*1500000=11,221,500,000‬

11,221,500,000‬= 1.1221500000*10^-10

5 0
3 years ago
If AJKL = AMNP, which statement must be true?
Karo-lina-s [1.5K]
Where are the statements
7 0
3 years ago
Read 2 more answers
If f(x)=sinx 2x 1 and g is the inverse function of f
Bingel [31]

The value of the derivative of the function g(x) at x = 1 will be 1/3. Then the correct option is A.

<h3>What is an inverse function?</h3>

A function that may convert into another function is known as an inverse function or anti-function.

If the function is f(x) = sinx + 2x + 1.

Then the derivative of an inverse function g(x) of a function f(x) at a given value (a) will be

\rm g'(a) = \dfrac{1}{f'(g(a))}

The derivative of f(x) will be

f'(x) = cos x + 2

Then the given value of a will be

a = 1

g(x) = f⁻¹(x)

put x = 0, then we have

f(0) = sin 0 + 2(0) + 1

f(0) = 1

Put x = 1, in the function f⁻¹(x). Then we have

f⁻¹(1) = 0

and

g(1) = 0

Then put a = 1, then we have

\rm g'(a) = \dfrac{1}{f'(g(a))}\\\\g'(1) = \dfrac{1}{f'(g(1))}\\\\g'(1) = \dfrac{1}{f'(0)}\\\\g'(1) = \dfrac{1}{\cos 0 + 2}\\\\g'(1) = \dfrac{1}{1+2}= \dfrac{1}{3}

More about the inverse function link is given below.

brainly.com/question/2541698

#SPJ4

8 0
2 years ago
In ΔRST, the measure of ∠T=90°, the measure of ∠R=39°, and TR = 55 feet. Find the length of ST to the nearest tenth of a foot.
kolbaska11 [484]

<u>Answer:</u>

<h2>ST = 44.54 ft</h2>

<u>Explanation:</u>

given:

∠T=90° , ∠R=39° and TR = 55 ft

ST = 55×tan(39)

ST = 55×0.80..

ST = 44.54 ft

7 0
3 years ago
Other questions:
  • Here is my question <br><br> https://screencast.com/t/VWouZilTBM<br><br> PLZ HELP ME
    11·1 answer
  • PLEASE HELP *i'm assuming that by odds it is asking for the probability*
    10·2 answers
  • What is the sequence of 100,99,97,94,90
    5·2 answers
  • Helppp me please I need help
    10·1 answer
  • DNA and proteins are packed into cellular structures known as
    9·2 answers
  • Mrs. lemke has 10 2/3 ounces of fertilizer for plants. she plans to use 3/4 ounce fertilizer on each plant. after she puts ferti
    13·1 answer
  • In the equation, 4x + 17 = -3 do you divide by the coefficient or subtract the 17 first? How do you know? *
    14·1 answer
  • How much is 1/3 out of $63,000.00 dollars??
    15·1 answer
  • The sum of three times x and 33
    11·1 answer
  • Solve for x. Round your answer to the nearest whole number.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!